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MODEL MA-300 - Pentair Water Literature

1. 60 38 LUBE OIL FILTER D ap OIL PRESSURE GAUGE 7 00 La 5 50 __ he i p E x 150 P 17 00 i coum i5 ua 5 x o Tdi 1 38 DIA HOLE 2 gx 4 PLACES 48 OW DI gt 5 50 275 xe Ba La a 5 50 FOUNDATION PLAN 4 500 4499 DISCHARGE CONNECTIONS 4 00 ANSI 600 FF BOTH SIDES 68 e o CP o olo PUMP 12 50 All drawings and specifications subject to change without notice eae Lg SUCTION CONNECTIONS 8 00 ANSI 150 FF BOTH SIDES 300 Quintuplex Pump OIL PRESSURE SET VALVE N 62 13 NOTE REQUIRED DIRECTION OF ROTATION 3 00 ANSI 1500 LF BOTH SIDES 10 25 All drawings and specifications subject to change without notice gt PENTAIR 5 79 SUCTION CONNECTIONS 6 00 ANSI 150 FF BOTH SIDES MYERS APLEX SERIES 58 63 43 00 LUBE OIL FILTER 7 00 OIL PRESSURE GAUGE 150 ERR 550 H 25 9 7 LE _ 2 _ GER O H 1 17 00 Q E PUMP O _ EPUM n 34 00
2. 12 12 13 Connecting Rod Crosshead Extension Rod Crosshead Pin and Wiper Box and Disassembly EE ete 13 Installing Wrist Pin Bushings 13 14 Bolting the Wrist Pin 14 Order of Assembly 14 15 ONES COOP 15 Wiper Assembly General m nqa 15 Double Lipped Wiper 15 Double Lipped Canned Wiper 15 Inserting the Extension 15 PENTAIR MYERS APLEX SERIES Stuffing Box Packing and Plunger Assemblies erc 16 Spring Loaded Packing 16 J Style Stuffing Box and Plunger Assembly Styles 838 and 858 16 17 Inserting the 17 Installing the Gland 17 Installing the Stuffing 17 Connecting the Plunger 17 18 PMS OTS creo niox bdsm 18 Disc Valve Systems and Abrasion Resistant E ERE KE 18 Disc Valve Construction 18 19 Setting the Valve 19 Installing O Rings
3. 1 38 DIA HOLE 2 4 PLACES amp Lo c __ loa L275 1 1 7 KEY el 5550 FOUNDATION PLAN 4 500 4499 DISCHARGE CONNECTIONS 45 00 INSTALLATION OPERATION LUBRICATION MAINTENANCE AND STORAGE INSTRUCTIONS SAFETY Electrical power or engine must be shut off completely before attempting service on the pump or its drive Air surrounding the unit to be free of toxic flammable or explosive gases Tools needed should be planned for in advance see valve seat pulling instructions and should be clean and of adequate size A torque wrench will be required to tighten connecting rod cap screws A properly sized and set relief valve installed in the pump discharge system ahead of any block valves is necessary to protect personnel and to avoid dangerous overpressure The relief valve set pressure should be not more than 25 above the design operating pressure and should discharge to tank or to the atmosphere toward the ground and must not be directed back to the pump suction system WARNING mproper use of this equipment could result in loss of life CALIFORNIA PROPOSITION 65 WARNING WARNING This product and related accessories contain chemicals known to the State of California to cause cancer birth defects or other reproductive harm STORAGE Pumps are shipped dry from the factory If a pump has been in st
4. 170 038003 237 O Ring Nitrile Rubber 110 000023 201 Check Valve Brass 7509 0012 00A Center Bearing 7201 0542 00D 1 2 NC Flat Head Hex Soc Cap Screw 188 012300 271 gt Ro e e an m gt NIN 1 2 NC Locking Nut 25 151 012013 405 Lube Assy 5 Stroke Right Hand and Left Hand Drive Right Hand Shown MA 300L MA 300M Quantity Description Part Number Piston Relief Valve 1204 0318 00A Adjusting Screw Relief Valve 7204 0317 00A Spring Relief Valve 7204 0319 00A Washer 204 013009 206 1 8 Pipe Plug Socket Head 05022A021 7 8 x 14 Thread Jam Nut Hex 130 078014 243 Cap Relief Valve 7204 0316 00A PENTAIR MYERS APLEX SERIES 26 MA 300L Fluid End Assembly Nickel Aluminum Bronze Description Valve Cover Screw Part Number 1204 0601 00B Valve Cover 7204 0602 00B O Ring 110 000246 201 1 4 Hex Hd Pipe Plug 5 5 170 014002 405 Liquid End Al Brz 7201 0562 00K 1 1 4 x 6 1 4 Stuffing Box Studs 7507 2738 00A 1 1 4 8 Thrd Heavy Hex Nut 141 114008 243 7 8 x 4 1 4 Stud Discharge Flange 7507 2736 00A 7 8 9 Thrd Heavy Hex Nut 133 078009 243 3 4 x 3 1 2 Stud Suction Flange 7507 2735 00 3 4 10 Thrd Heavy Hex Nut 133 034010 243 1 3 4 x 14 1 8 Stud Liquid E
5. 7201 0582 00B 7201 0582 008 7201 0002 00B 7201 0002 00B 7201 0325 29B 7201 0039 00A 7201 0007 00A 7201 0584 00B 7201 0054 10C 7201 0582 00B 7201 0002 00B 7201 0325 28B 7201 0039 00A 7201 0007 00A 7201 0790 00C 7201 0050 10C 7201 0791 02B 7201 0001 00 7201 0325 27B 7201 0039 00A 7201 0007 00A 7201 0790 00C 7201 0050 10C 7201 0791 02B 7201 0001 00 7201 0325 268 7201 0325 25 7201 0039 00 7201 0039 00 7201 0007 00A 7201 0007 00A 7201 0790 00C 7201 0576 00B 7201 0050 10C 7201 0067 10C 7201 0791 02B 7204 0376 00B 7201 0001 00B 7204 0051 00 7201 0325 24B 7201 0039 00A 7201 0007 00A 7201 0576 00B 7201 0067 10C 7204 0376 00B 7204 0051 008 7201 0325 23B 7201 0039 00A 7201 0007 00A 7201 0576 00B 7201 0067 10C 7204 0376 00B 7204 0051 00B Qty 5 per pump ea MA 300M GLAND NUT WRENCH 7201 0342 00B PLUNGER DIAMETER 1 PLUNGER CHROME OXIDE 7201 0325 22B 7201 0325 21B 2 BAFFLE 7201 0039 00A 7201 0039 00A 3 STUFFING BOX SEAL NITRILE RUBBER 7201 0033 00A 7201 0033 00 4 STUFFING BOX STEEL 7201 0590 10B 7201 0590 10B 4 STUFFING BOX AL BRZ 7201 0026 10B 7201 0026 10B 7201 0591 10B 7201 0591 10B 1201 0025 008 1201 0025 008 1201 0325 20B 7201 0039 00 7201 0033 00A 7201 0590 10B 7201 0026 10B 7201 0591 10B 7201 002
6. Abrasion Resistant Spring and Cage 19 Installing Disc Spring Disc Valves And Stem 19 Valve Spring OpDpDEIONST u uuu 19 Valve Disc Options 20 Pulling the Valve Seat 20 Salvage of Worn Seats 20 Other Pump 5 20 Trouble Location and Remedy 21 23 Illustrated Parts Breakdown Power Frame Parts List 24 Crankshaft Parts 15 25 Lube Assembly Parts List Lube Assembly 5 Stroke 26 Fluid End Assembly Parts List Nickel Aluminum 27 Stuffing Box Assembly Parts List Nickel Aluminum Bronze 28 MA 300L ENGINEERING DATA MA 300L ENGINEERING DATA Overall Dimensions and Weight Length 60 38 Liquid End Maximum Continuous Working Pressure 1 480 psi Width 62 13 Hydrostatic Test 2 220 psi Height 22 88 Weight 5 000 Ibs Power End Rated Continuous Plunger Load 10 700 16 Available Liquid End Materials ASTM Nickel Aluminum Bronze Casting Carbon Steel Block Stainless Steel Block B148 C955 A516 Various Grades Maximum Rated Continuo
7. PENTAIR Alo 5 8 x 2 1 4 Lg Hh Cap Screw Plug Oil Metering MYERS APLEX SERIES 24 100 058214 273 7201 0349 00A MA 300L 300 Crankshaft Assembly 5 Stroke Right Hand and Left Hand Drive Right Hand Shown Description Crankshaft Assy includes items 1 amp 2 Part Number PE146K Crankshaft 7201 0536 00 Drive Key 146 100700 236 OR Crankshaft KIT includes items 1 2 3 amp 4 PE146KB Bearing Cone Tapered Roller 203 574590 999 Bearing Cup 202 529590 999 Bearing Carrier Drive Side O ring Nitrile Rubber 7201 0004 00C 001500371 Cap Screw Hex Head 3 4 NC x 2 Lg Gr 5 100 034200 273 3 4 5 6 7 g Shim Set 7502 0237 00 Oil Seal Drive Side 145 458558 999 Bearing Carrier Lube Oil Pump Side Ass y 7201 0538 00 includes Shaft Bushing 7204 0320 00A Gasket 7201 0546 00B Driver Lube Oil 7201 0543 00B 1 2 NC x 1 Lg Socket Hd Cap Screw Nylok 272 012100 999 Switchgauge Murphy 7509 0008 00A Lube Oil Pump 7204 0325 00A 3 8 x 1 8 Hex Pipe Bushing Hex Iron 161 038018 451 Oil Filter 7602 3005 00A 1 1 4 Oil Filter Plug 7204 0314 00A Frame Plug Drive Side 5 16 NC x 7 8 Lg Hex Hd Cap Screw 7204 0315 00A 100 516078 273 O Ring Nitrile Rubber 110 000210 201 3 8 Pipe Plug Socket Hd
8. SHUTDOWNS Carefully check all electric shutdown devices present such as crankcase oil level discharge pressure vibration lubricator oil level motor thermostat etc 11 CRANKSHAFT ASSEMBLY GENERAL Myers Aplex Series crankshaft suspension uses two single row tapered bearings which are shim adjusted to provide the correct running clearance Thorough cleaning of all components prior to assembly is essential Power frame shaft bearings and retainer MUST be scrupulously scrubbed with clean solvent such as kerosene before starting Remove any oil dirt rust and foreign matter which might prevent the correct fit up Crankshaft journals are critical Remove all burrs rust spots and nicks paying special attention to the ground areas on which bearings and oil seals operate Connecting rods and crossheads must be previously installed into MA 300 pumps before the crankshaft assembly TAPERED ROLLER BEARINGS Shaft and frame tolerances provide a tight press fit on the shaft and tap fit in the frame The best way to install the cone assembly consisting of the inner race cage and rollers on the shaft is to heat the cone assembly in an electric oven for 30 minutes at 300 to 400 F No More DO NOT heat bearings with an acetylene torch This ruins the bearings Using clean insulated gloves remove the hot cone assembly from the ove
9. WYJYLSNMOG E1038 TIIM NOLLIQNOO 39805 IHL 403 Q30N3WO933 SI NOLIN3LLV YYINIILYYd SQIVZvH TVIIN310d 393v H2SIQ ONINAdO TINd 391034 01 43040 NI SNOLLIGNOD 13540 ONY SNILIVIS 9NILV33d0 303 S NILVY 33155334 1V3S SNINAGO TIN4 3ATVA 9NIMS L ALON 339 31V030V 3AVH ISN SIN3NOdNO9 W3ISAS TIY OT 9 810 6 310N 339 3193NN02 3130 SI 0109 33134 TIVAS V J101 SI dd N3HM CNY 3ATVA 43138 JUNSSANd SV AMINA 33055334 393vH9SIQ 40 GYYZVH 1SNIV9V IW31SAS NOILONS 1931034 01 6 310N 339 _ TR ITNI NOLLORIS 40 3NITH31N32 38 ISNW 9NIdld 393vHOSIQ NV 8 adis 3390933 91413993 0350 41 YINIANYG 1H9I3M 9NIdld NV NOILIYYLNO9 NOISNYdX3 NOILVSTnd 393vHOSIQ TWWUSHL 9NIdld 30 S193443 37IWININ 3215 NOLLO3NNO2 JAYA 49018 NV 01 Q3NOILISOd 38 diNnd 1531 LY 15 108 39fiV9 3unss3ud TANMS INIOr NOISNVdX3 ISOH 3181X311 0123 AYAH NOLLVETTJ99V 1 ALON 339 V NOLLVHSIA NIVHLS 1 3A0W3 OL NO 30 3715 ISN 3TdLETOUN 41 JAYA 9018 NV 39v9 34155339 31981530 41 3ATVA 1003 30 3SOH 3QfTT9NI AVIA ALIQOT3A AINON JLYYYdIS LIINI NOLLORIS 904 03491530 7139 NOILINS INON 9NI09100 WOY Y
10. a rubber mallet tap it into the bore until the face of the seal is flush with the power frame or bearing retainer LUBE OIL PUMP ASSEMBLY Lube oil pump and filter assemblies are employed in certain Myers Aplex Series pumps This assembly is installed after the shaft and its tapered bearings have been correctly set Providing filtered oil under pressure 35 to 75 psi to all crosshead pin bushings and crankpin bearings this special gear pump is driven by a bolted on drive shaft Driver is made with a female drive square which drives the male square end of the lube oil pump shaft The driver shaft is piloted by the main bearing inner race cone and is secured to the crankshaft by four socket head cap screws Stake their heads using a center punch to upset the adjoining metal The lube oil pump Tuthill is a gear type pump possessing a self reversing sector which automatically switches suction and discharge connections in the event not recommended that the pump is caused to rotate opposite the correct direction The lube oil pump is readily removed for inspection repair or replacement without disturbing any other pump component The lube oil pump shaft is journaled in a bronze bushing fitted into the bearing carrier If this bushing becomes worn check for contaminated crankcase oil it must be promptly replaced worn bronze bushing will cause this pump to frequently lose its prime and also may cause excessive wear in the
11. axes are not truly parallel or if the sheave grooves are not positioned in good alignment some belts will carry most of the load resulting in their disproportionate load share and may actually twist or turn over in the groove Use a straight edge across the rim of the sheaves to detect and correct for misalignment After about one week of operation new V belts will have stretched somewhat The motor must be moved on its slide base to re establish proper belt tensioning Insufficient tension results in slippage burning squealing especially during starting and shortened belt life Overtightening imposes excessive loads on pump and motor bearings and can cause early shaft fatigue failure Use the following table in adjusting V belt tension Belt Tension at Mid Span Used Cross Section New Belts Ibs Belts Ibs 5 6 3 1 4 5 C 9 3 4 13 6 1 2 9 3 4 3v 4 10 3 7 12 17 30 13 23 Applying the above forces with a small spring scale adjust motor position to provide the following deflection at mid span Approx Center Distance Deflection Span inches inches 16 1 4 Belts must be matched in pitch length If one or two belts are slack when the others are correctly tensioned investigate for possible reasons Correct any misalignment or lack of matching so each belt will transmit its load share 0342018 SI 393 9 1 N3HM 3ATVA 4334 FHL 30
12. built for each specific Myers Aplex Series pump model The same puller head is used on both suction and discharge seats The bridge is made to fit each model and its proper use will not damage the valve cover gasket machined counterbore on the top of the fluid end SALVAGE OF WORN SEATS Rough valve seat faces may often be renewed by lapping or grinding if not deeply fluid cut Perfect flatness is required A surface grind followed by lapping on a lapping plate provides excellent smoothness and the flatness needed for good sealing and smooth running Metal valve discs may sometimes be salvaged by grinding or lapping if not deeply cut or cracked Delrin discs are relatively inexpensive and salvage is seldom worthwhile Replace the stem if severely worn Inconel valve springs rarely require replacement OTHER PUMP BRANDS Myers Aplex Series Industries can provide its unique patented valve to fit nearly all brands and models of multiplex pumps An Myers Aplex Series seat setting puller tool is available too Trouble Pump fails to deliver required capacity Suction and or discharge piping vibrates or pounds Pump vibrates or pounds Possible Cause Speed incorrect Belts slipping TROUBLE LOCATION AND REMEDY Change drive ratio or tighten belts if loose Correct motor speed Air leaking into pump Seal with compounds Liquid cylinder valves seats or plungers worn Reface or lap val
13. determine abnormal frame wear if any New Crosshead 0 D 6 740 6 737 New Frame Bores 6 749 6 752 Frame bores which have become worn more than 015 must be sleeved with a cast iron liner to re establish correct geometry and alignment Contact Myers Aplex Series concerning the repair of badly worn frame bores Smooth any rough corners and edges on the crosshead Skirts using fine emery cloth Examine and clean the female tapered threads and wrist pin holes INSTALLING WRIST PIN BUSHINGS The wrist pin bushing is precision machined bearing bronze which is press fitted into the crosshead OIL METERING PLUG BUSHING TO BE INSTALLED INSIDE CROSSHEAD O D WRIST PEN BUSHING CROSSHEAD 2 0 0 Crosshead bore 3 2525 3 2515 3 250 3 251 MA 300 requires two 2 bushings per crosshead After applying oil to the bushing O D use a hydraulic press to force home Repeat this procedure for the second bushing When a bronze bushing is pressed into place the 1 0 bore of the bushing is reduced somewhat owing to the extent of press fit Therefore a clean new wrist pin should be inserted into the bushing bore to establish that running clearance has been obtained The running clearance between the wrist pin and installed bushing is Oil Clearance 0020 0045 New pin 0 D Installed bushing bore 2 6895 2 6905 2 6875 2 6860 Replacement bushings are furnished
14. gt PENTAIR MYERS APLEX SERIES MODEL MA 3UL QUINTUPLEX PUMPS INSTALLATION AND SERVICE MANUAL NOTE To the installer Please make sure you provide this manual to the owner of the equipment or to the responsible party who maintains the system Part AP 03 106 2012 Pentair Ltd 12 27 12 Engineering Data MA 300L Engineering 3 MA 300M Engineering Data 4 MA 300L General Dimension Drawing 5 MA 300M General Dimension Drawing 6 Installation Operation Lubrication Maintenance and Storage Instructions Sdlely ocupa 7 MOLAR MEE 7 Pump Location and Piping Design 7 SUCTION 7 8 Acceleration Head 8 Discharge Piping 8 Bypass PIPINE aspecto xv 8 9 9 ED 9 11 Suggested Piping System for Plunger 10 Direction of Rotation u uu ee one rex 11 Automatic Safety Shutdowns 11 Crankshaft Assembly een 11 Tapered Roller 11 Cup Imstallatiom U u 12 Installing Crankshaft er ici 12 Shim Adjustment of Tapered Roller Bearings 12 Installation of Crankshaft Oil 5 12 Lube Oil Pump Assembly
15. of the liquid in the entire suction system is not truly constant but varies in response to the combined demand of the reciprocating plungers Thus liquid in the suction system is compelled to be accelerated and decelerated several times during each crankshaft revolution depending on the number of plungers Called acceleration head this loss of available hydraulic head is proportional to a The speed RPM of the crankshaft b The average liquid velocity in the piping c The length of the suction piping d The number of pumping chambers triplex etc e The compressibility of the liquid Thus for a given pump acceleration head effects may be reduced by the use of the shortest possible suction line sized to reduce liquid velocity to a very low speed This is often more economical than the use of charge pumps or expensive suction stabilizers NOTE Charge pumps should be sized to 150 of rated pump volume Charge pumps need to be centrifugals not a positive displacement pump A charging pump is usually not a good substitute for a short direct oversize suction line nor is it a substitute for the computation of available NPSH acceleration head friction head vapor pressure and submergence effects duly considered Required NPSHR of Myers Aplex Series pumps depends on speed choice of plunger size and valve spring type Consult Myers Aplex Series Engineering for help with your particular application A full dis
16. packing When introducing the plunger through the MA 300 stuffing boxes also apply oil liberally to the O D of each integral extension rod to allow easy passage through the wiper box seals TAP HERE USING RUBBER MALLET OILED PLUNGER GLAND RING STUFFING BOX BENCH TOP A soft rubber mallet is recommended to avoid any damage to the plunger face or its threads Remember The fragile nature of packing rings and plunger surfaces deserves your respect and avoidance of careless damage to these key elements 17 INSTALLING THE GLAND Considerable downward pressure on the gland is required to compress the spring and to move the packing into location and to start the threads of the box Once the gland threads are started screw it down completely until it makes up tightly against the face of the box for spring loaded packing For J Style or gland adjusted packing tighten the gland until it is seated firmly against the packing INSTALLING THE STUFFING BOX Myers Aplex Series stuffing boxes derive their alignment from the bores of the power frame and the faces of the fluid end so these surfaces MUST be cleaned of rust scale and dirt before assembly is begun Wash all contacting surfaces with clean solvent and dry with a CLEAN shop towel A nitrile rubber seal is used to seal between the face of the fluid end must be flat clean and smooth and the face of the box Replace if damaged All stuffing boxes are reta
17. prebored by Myers Aplex Series which usually eliminates the need to ream the installed bushing bore However due to slight variations in finishes and tolerances it sometimes happens that more than predicted contraction of the I D occurs This occurrence results in a slight interference which may be eliminated by lightly honing the bore of the bronze NOT by reducing the pin size An automotive engine re pair shop usually is equipped with power honing machines capable of smoothly finishing the bushing bore Bore of bushing must be round and free of taper BOLTING THE WRIST PIN After pressing in the two bronze bushings the wrist pin must be bolted to the connecting rod Place the connecting rod inside the crosshead and slide the wrist pin through the crosshead and connecting rod CONNECTING METERING CROSSHEAD ROD WITH PLUG w BUSHING BUSHING WRIST PIN The hole in the wrist pin should line up with the hole in the connecting rod Install the shoulder bolt through the wrist pin and thread into connecting rod Torque to 25 ft Ib ORDER OF ASSEMBLY The connecting rod crosshead assembly is installed AFTER the assembly of the crankshaft In these modes the rod and crosshead will pass through the wiper box wall bore With the frame in the horizontal position load the rods through the cradle PENTAIR MYERS APLEX SERIES CRADLE OPENING CRANKSHAFT INSTALLED 222222277 WIP
18. provider h to any unit that has been repaired using non factory specified OEM parts Warranty Exclusions PENTAIR MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF PENTAIR MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE Liability Limitation IN NO EVENT SHALL PENTAIR MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY PENTAIR MYERS PRODUCT OR PARTS THEREOF PERSONAL INJURY AND OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION PENTAIR MYERS DISCLAIMS ALL LIABILITY INCLUDING LIABILITY UNDER THIS WARRANTY FOR IMPROPER INSTALLATION PENTAIR MYERS RECOMMENDS INSTALLATION BY PROFESSIONALS Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or consequential damages and therefore such limitations may not apply to you No warranties or representations at any time made by any representatives of Pentair Myers shall vary or expand the provision hereof gt PENTAIR MYERS MYERS APLEX SERIES 1101 MYERS PARKWAY ASHLAND OHIO USA 44805 419 289 1144 WWW FEMYERS COM Warranty Rev 12 13
19. pump rotor teeth DISASSEMBLY After removing the connecting rod cap and cap bolts note identifying marks on each cap so each may be later correctly reassembled onto its own rod remove a bearing carrier from the frame Two jack out tapped holes are provided in the flange of the carrier for this purpose Support the shaft during removal to avoid damage The crankshaft may now be extracted once all connecting rods are moved clear Examine the crankpin surfaces for wear or corrosive pitting The correct diameters of these journals are Crankpin Diameter 4 5000 4 4990 If worn more than 010 undersize crankshaft should be replaced or an attempt to salvage it may be made at a shop well equipped to grind the crankpins which must be fully round chrome plated and finish ground to the above sizes Myers Aplex Series does not perform this function Crankshaft tapered roller bearings should be carefully examined for pitting scoring or corrosion and replaced as required The cone and roller assembly is most easily removed by first cutting away the cage using an acetylene cutting torch Then heat the cone inner race with the shaft held vertically so cone will drop off due to its own weight Avoid excessive heat on the crankshaft which tends to distort its geometry Cups outer races of tapered roller bearings may be extracted from bearing carrier using a conventional bearing puller tool of the automotive type wid
20. reduce ambient temperature Pump speed too low 23 Increase speed Power Frame Assembly Connecting Rod Crosshead amp Wiper Box Assembly ONS 4 15 MA 300L MA 300M 17 24 13 14 16 26 22 23 Description Power Frame Part Number 1201 0533 00E Crankcase Cover 7201 0544 00B 1 2 x 3 4 Lg Hh Cap Screw 100 012034 273 Crankcase Cover Gasket 7201 0545 00B Pipe Plug 1 2 Socket Head 170 012002 237 Oil Level Sight Gauge 7602 3014 00A 1 4 Pipe Nipple 2 Lg 157 014200 235 Pipe Plug 1 2 Socket Head 170 012003 237 Pipe Plug 3 4 Sq Ctrsk Hd 05022A019 Pipe Plug 1 1 4 Breather Filter 05022A047 7602 3001 00A Pipe Plug 1 4 Hex Head 170 014002 405 Assy Connecting Rod 7201 0534 00D Bearing Crankpin Pair with Oil Groove 7201 0175 00K Wrist Pin 7201 0348 00B Wrist Pin Bolt 251 038312 220 Crosshead Subassembly 7201 0350 000 el gt Bushing Crosshead Bronze Replacement 7602 3008 00B c Set Screw not shown 123 916034 949 Rod Extension 7205 0007 10B Box Wiper 7201 0539 00C Seal Wiper Double Lip 145 212299 503 Seal Wiper Double Lip Canned 145 212300 503 O ring 110 000260 201
21. tension Myers Aplex Series pumps use high strength cap bolts suitable for these initial load ings maintained by using safety wire to maintain the required tightness After all rods and caps are secured slowly turn the crank shaft to be sure no bearing is in a bind Using a flashlight examine the location of each connecting rod eye end within its crosshead Rods must not touch any crosshead boss or skirt WIPER BOX ASSEMBLY GENERAL Extension rod wiper boxes sometimes referred to as the diaphragm stuffing box or stripper housing assembly serve two important functions retention of crankcase oil in the power end and exclusion of dirt and water Myers Aplex Series has developed a unique sealing set which operates on a hardened and ground stainless steel extension rod often called pony rod and a metal baffle disc affording protection against leaking plunger packing The seals require no adjustment only correct and careful assembly DOUBLE LIPPED WIPER SEAL This seal keeps oil from leaking out of the power frame Developed by the Parker Seal Group this double lipped wiper provides an additional beveled sealing lip yielding excellent film breaking and the driest rod sealing available INNER SEAL WIPER BOX OUTER SEAL EXTENSION ROD BAFFLE PLATE o CRANKSHAFT PLUNGER The double lipped wiper seal is inserted into its counter bore with its lips directed toward the oil in the crankcase W
22. 310N 33 N 9NIWOONI 5NILVHYd3S 31V1d lt TANG AT31314W03 MALLS KALHOA E NMOHS LON SNOILYONNO4 h A NV SNOLLO3NNOO a JOUVHOSIG NV NOLLORS S gt 7 9 TWINOZINOH SI JUNSSIUd LIS N3HM ATINA SN340 3ATVA 9 10 164 YO 3ATVA 431133 9 4 4 N ALON 33S 9NI0V01 OL dINNd NI T34X3 YNYL 01 340 AWA SSVdA 340H9 Q3WWIMI 0uVH YO T1033N 9405 anor 13108 33 INIOF N0ISNVdX3 3S0H 3181X314 Tn Qr Z 310N 335 WAWININ 104 MOT TBA31 WAWININ M0138 NYL OLNI AINON 0333 CINOHS SSVdA8 ANY 0333 9 ONIddOLS YO 9NILHVIS ATIVOLLVINOLOV _ 940 01 Q3N9IS3Q 38 CINOHS LI JdAL 3NWA 3NI1 1911 NOLLONS 90 103 WAONVIN V NVHL YIHLYY 0357 38 AVIA SSVdA8 CALVYIdO YOLOW AvM OML V 0941930 31 6 G dlNvX3 303 SOIM SSVdAg 04 SV ANVSS393N SI V 3I NMOHS INIOd 19 dd 9NIDIVHO 319901 ONIOIAYAS 9NILN3A3Ud ONF ainor YO 30 INOX 1N3WdI 103 43H10 Y0 9Nldld 319907 LON 00 9 310 33 0333 LINDUID SSVdA8 NI AINON TIY ONY S3ATVA 340H9 331133 Alda ATINA TIIM INIOd MOT OS SSVdA8 3401 Z 03T134X3 SI dINAd JHL SAHOWSY ATLdINOd WALSAS NOLLONS NI ANY O
23. 5 00B 7201 0325 19B 7201 0039 00A 7201 0033 00A 7201 0590 10B 7201 0026 10B 7201 0591 10B 7201 0025 00B 7201 0325 18B 7201 0039 00A 7201 0033 00A 7201 0038 10 1201 0068 008 1201 0325 17B 1201 0325 16B 7201 0039 00A 7201 0039 00A 7201 0033 00A 7201 0033 00A 7201 0038 10 7201 0038 10 1201 0068 008 7201 0068 00B 7201 0325 15B 7201 0039 00A 7201 0033 00A 7201 0038 10 1201 0068 008 1201 0325 14B 7201 0039 00 7201 0033 00 7201 0038 10C 7201 0068 00B PENTAIR MYERS APLEX SERIES GLAND NUT WRENCH 7201 0342 00B 28 THIS PAGE INTENTIONALLY LEFT BLANK THIS PAGE INTENTIONALLY LEFT BLANK THIS PAGE INTENTIONALLY LEFT BLANK STANDARD LIMITED WARRANTY CENTRIFUGAL amp RECIPROCATING PUMPS Pentair Myers warrants its products against defects in material and workmanship for a period of 12 months from the date of shipment from Pentair Myers or 18 months from the manufacturing date whichever occurs first provided that such products are used in compliance with the requirements of the Pentair Myers catalog and technical manuals During the warranty period and subject to the conditions set forth Pentair Myers at its discretion will repair or replace to the original user the parts that prove defective in materials and workmanship Pentair Myers reserves the right to change or improve its products or any portions thereof
24. ER BOX WALL CROSSHEAD CONNECTING AND PIN ROD 7 GZ KO pd New crankpin 4 500 4 499 4 851 4 853 Crankpins that are worn out of round tapered or badly scored should either be discarded or perhaps salvaged by grinding undersize hard chrome plated and finish ground to above diameter Myers Aplex Series does not offer this service New connecting rod bore Connecting rod cap bore must be perfectly round and within above sizes and free of taper Discard if elliptical or tapered as the result of abnormal heating Each cap and rod is match marked for correct identification Take care that each cap is reinstalled properly with its companion rod Bearing halves are identical and are prevented from rotating by tongues which fit into slots in the cap Check that all oil holes are clean and fully open GRIT is the greatest enemy of bearings however precisely manu factured Hence all surfaces must be perfectly clean and lightly oiled prior to assembly Remove any burrs or sharp corners which prevent the perfect fitting of these precision bearings Using a torque wrench tighten cap bolts as follows Thread Size 5 8 18UNF Tightening Torque 125 135 ft Ib Specified torque applied to clean well oiled threads and bearing faces will create tensile stresses in the cap bolts from 90 000 to 110 000 psi approx and will provide correct initial
25. RIES spring is assembled into the stuffing box Note that the spring does not contact the plunger Spring Guide Ring Plungers are heavy and the importance of a well fitted guide ring which carries this weight is often overlooked Discard any guide ring that becomes worn or scored as it will then not serve its purpose It should fit snugly in the box Apply oil generously to this ring Spring Loaded Packing Three 3 rings of chevron or compression packing are installed next For compression packing install them with the skive intersections 180 apart to discourage leaking Gland Ring This ring also fits the plunger and helps support the plunger weight Discard it if bore is worn rough or out of round Lightly oil the ring before insertion The gland ring fits all packing J STYLE STUFFING BOX and PLUNGER ASSEMBLY STYLES 838 amp 858 GLAND RING N NS SS THROAT BUSHING PACKING SET PRESSURE XX SS SS BAFFLE LANTERN RING The above depicts Style 838 and 858 packing correctly installed with all packing lips facing toward the fluid pressure Note that two 2 units of Style 838 and 858 packing are positioned ahead of the lantern ring and one 1 unit is positioned behind it Thus lubricant entering the lantern ring is forced toward the pressure Throat Bushing Plungers are heavy and the importance of a well fitted throat bushing which carries this weig
26. S 3ATVA 131N NOILONS 30 3NITH3LN3O NVHL 33H9IH ATLHOTTS 38 OL LIINI NOLLORIS 4 4 30 3NITH31N3O T SALON SdNNd YFINN Id 404 WAILSAS 9NIdld GALSAIIINS 10 MYERS APLEX SERIES gt PENTAIR C D Sheaves must be balanced to prevent abnormal vibration Balancing weights must NOT be removed Type QD sheaves must be evenly tightened on their tapered hubs to avoid rim wobble and severe lateral vibration V belts that snap and jerk will produce abnormal vibration and loads on both pump and motor or engine Run the pump several minutes at full load with belt guard removed observing for uneven motion on the belt slack side especially When an old V belt drive becomes unserviceable replace ALL belts not just the broken or cracked belts Do not operate belts on sheaves having worn rusted greasy or broken grooves Shut off power to driver before servicing drive or pump WARNING Do not operate without appropriate guards in place DIRECTION OF ROTATION Before placing pump in operation check that crankshaft rotation agrees with the arrows cast on top of the power frame by briefly jogging the electric motor Crankshaft rotation must be clockwise as viewed from the right side of pump If pump is gear driven remember that the pinion shaft turns opposite the crankshaft if using a single reduction geared drive or in the same direction as the crankshaft when using a planetary gear AUTOMATIC SAFETY
27. are replaced and bushings ignored Plunger misalignment Abrasive or corrosive action of liquid Realign Plungers must operate concentrically in stuffing box Check valves and seats frequently at start up to determine schedule for replacing etc Eliminate sand abrasive air entering pump Incorrect material Air entering suction system Poor lubrication Install correct materials Eliminate air NOTE Pitting often leads to hairline cracks which ends in cylinder failure Replace oil as recommended in instructions Keep oil clean and at correct temperature Be sure oil is reaching all bearings Overloading Modify pump or system to eliminate overload Liquid in power end MYERS APLEX SERIES 22 Drain power end Eliminate cause or source of liquid entering power end Relubricate Trouble Excessive heat in power end Above 180 F Possible Cause Pump operating backward TROUBLE LOCATION AND REMEDY Correct rotation Insufficient oil in power end Fill to proper level Excessive oil in power end Drain to proper level Incorrect oil viscosity Overloading Fill with correct oil Reduce load Tight main bearings Correct clearance Drive misaligned Realign Belts too tight Reduce tension Discharge valve of a cylinder s stuck open Fix valve s Insufficient cooling Provide adequate cooling for oil or
28. cal Cast Iron Valve Cover and Cylinder Head Plugs 316 SS Crosshead Diameter x Length 5 3 4 x 6 3 16 Retainer Plates Ductile Iron ASTM A536 80 55 06 Crankshaft Crankshaft Diameter at Tapered Roller Bearings Ductile Iron 4 3 4 Crankshaft Diameter at Crankpin Bearings Diameter x Length 4 1 2 x 3 3 4 Seals for Stuffing Boxes Valve Covers Cylinder Heads Disc Valve Types Regularly Furnished Acetal Resin Optional Hardened and Lapped Buna N Delrin 17 4PH SS Crosshead Wrist Pin Case Hardened and Ground Main Bearings Tapered Roller AIS 8620 Timken Valve Spring Material Valve Seat Liquid Passage Areas Inconel 3 86 sq in Crankpin Bearings Precision Automotive Steel Backed Babbitt Lined Extension Pony Rod Integral with Plungers 17 4PH SS Connecting Rod Automotive Type Ductile Iron Average Crosshead Speed 450 rpm 333 Minimum Life Expectancy Main Bearings Lio gt PENTAIR 65 0004 hr MYERS APLEX SERIES Average Liquid Velocity with 2 7 8 plungers at 400 rpm Through Valves Through Suction Manifold Through Discharge Manifold 10 8 fps 3 2 fps 12 7 fps OIL PRESSURE SET VALVE q MA 300L Quintuplex Pump 62 13 Y NOTE REQUIRED DIRECTION OF ROTATION a
29. cussion of suction system losses is given in the Standards of the Hydraulic Institute 14th Edition A common design mistake is the connecting of two or more reciprocating pumps to a COMMON suction header This is a profoundly complicated suction system largely not amenable to mathematical analysis and is frequently the cause of severe pump pounding vibration and early PENTAIR MYERS APLEX SERIES valve failures Each pump should be fed by its own separate individual piping system free from the effects of other pump cyclical demands for liquid DISCHARGE PIPING A properly designed discharge piping system usually prevents the need of a pulsation dampener The most common mistakes made in the design of the discharge piping system are 1 Pumping directly into a tee or header A standing wave either audible or subaudible then often occurs If flow must enter a header use a 45 branch lateral or equivalent to avoid a reflecting surface from which sound can reflect 2 Pumping into short radius 90 elbows Instead use two 45 elbows spaced 10 or more pipe diameters apart 3 Pumping into a right angle choke valve 4 Pumping into too small piping line size Piping should be sized to keep fluid velocity below 15 feet per second max 5 Pumping through an orifice plate small venturi or reduced port regular opening valve 6 Pumping through a quick closing valve which can cause hydraulic shock water hamme
30. ed beneath the frost line or insulated to avoid freezing in the winter If the suction line has a block valve at the supply tank a suitable relief valve is suggested to relieve the suction piping from any possible dangerous overpressure from the discharge piping system Suction piping is often large heavy especially when filled with liquid and tends to vibrate Proper solid supports are recommended A suction hose located near the pump will isolate these effects protecting the pump from the forces and moments that piping weight creates New suction piping systems should be flushed free of pipe scale welding slag and dirt before starting the pump Hydrostatic testing to detect air leaks is advisable Proper choice of suction hose construction is essential to avoid collapse of the hose liner Install a dry type compound gauge in the suction line near the pumps which should fluctuate evenly If violently pulsating this gauge indicates that the pump is not fully primed or that one or more valves are inoperative ACCELERATION HEAD A characteristic of all reciprocating pumps is the imperative need to consider the effects of acceleration head which is a SYSTEM related phenomenon Acceleration head may be considered to be the loss of available hydraulic head energy in the piping system occurring because the demand by the pump cylinders for liquid is not smooth and even Because the pump s demand for liquid is cyclical the velocity
31. elements VALVE SPRING OPTIONS All Myers Aplex Series valve springs are made of Inconel material precisely designed and fabricated Unless otherwise specified the standard spring is furnished It provides excellent results in the great majority of applications Pumps employed in marginally available NPSH conditions may require a softer spring to reduce the required NPSH For these special conditions Myers Aplex Series can supply light valve springs which exert lower pressure on the valve disc The use of light valve springs may be limited by the choice of plunger size and or limited by the chosen speed of the pump Light valve springs may be impractical for pump models fitted with their maximum plunger size or which operate near top speed rating as disc bouncing and erratic seating may occur VALVE DISC OPTIONS Myers Aplex Series acetal resin discs made of DuPont Delrin are machined flat and smooth to produce perfect sealing on the lapped flat face of the seat Used successfully in thousands of applications these discs are light slightly flexible under load and seal well even at high pump speeds providing smooth pump action Acetal resins are very resistant to most corrodents but are not usually suitable in fluid temperatures above 120 F nor do they afford long life at extreme pressures Pressure limitations depend on valve size But continuous valve operation at pressures above 2 500 psi usually indicate the need
32. ely available Do not attempt to use heat on a bearing carrier as this will result in severe distortion out of round Replace the bearing carrier if broken or out of round CONNECTING ROD CROSSHEAD EXTENSION ROD CROSSHEAD PIN and WIPER BOX ASSEMBLY and DISASSEMBLY CRANKPIN BEARING CRANKPIN CONNECTING OIL HALF ROD HOLE OIL METERING WRENCH PLUG FLATS TZ EC WRIST WRISTPIN CROSSHEAD WIPER BOX EXTENSION ROD BUSHING 13 GENERAL Myers Aplex Series connecting rod assemblies employ precision automotive type steel backed babbitt lined crankpin bearing halves which require no shims for clearance adjustment This pump employs full circle piston type crossheads and hardened stainless steel extension rods which are field replaceable Extension rods are provided with wrenching flats to permit tightening of the tapered thread into the crosshead establishing accurate alignment while affording easy field installation Before beginning the assembly all parts must be scrupulously cleaned removing all oil dirt rust and foreign matter which prevent proper fitting or which might tend to score the rubbing surfaces Clean and examine the power frame bores for scoring and abnormal wear especially wear of the lower crosshead guide way Hone smooth if rough Measure the bores of the frame using inside micrometers to
33. ent shims located beneath bearing retainer flange must be installed to provide 005 to 015 lateral end play when shaft is cold A feeler gauge and a 1 micrometer caliper are required Install a trail shim set on one side of the pump Tighten the flange bolts on this side only CAUTION Lubricate the frame bores and the O ring seals located in each carrier to prevent damage during entry Oil the bearings Omitting the shim set on the opposite side draw up the carrier evenly tightening its cap screws Rotate the crankshaft slowly by hand seating all rollers into running position Measure the gap existing between the frame face and carrier flange The correct thickness of the shim set to be installed on this side equals the measure gap plus about 010 No preload After installing above shim set a dial indicator may be used against the end of the shaft to confirm the shim selection Bump the shaft in one direction and zero the dial indicator Bump the shaft the opposite way If PENTAIR MYERS APLEX SERIES shimming is correct the shaft will move laterally from 005 to 015 About equal shim set totals are required under each carrier flange The recommended tightening torque for bearing retainer 3 4 1OUNC cap screws is 211 to 257 ft Ib INSTALLATION OF CRANKSHAFT SEAL Insert oil seal over the end of crankshaft and position it into the oil seal bore in the power frame or bearing retainer Using
34. er to the webs or spokes or to the center section Distortion of the seat is eliminated Access to these seat threads is provided by the removal of the valve cage on abrasion resistant valves or the spring retainer on disc valves which is screwed onto the seat An anti seizing lubricant applied to all threads is good insurance against future difficulty SETTING THE VALVE SEAT Effective pressure sealing between tapered male seat and tapered female fluid end deck is possible ONLY if the tapers are absolutely clean and dry just prior to installation Thoroughly clean surfaces using a clean solvent Dry with a CLEAN shop towel Examine the cleaned fluid end deck tapers using a flashlight and remove all deposits of gyp salt or other encrustation Lightly rub with emery cloth any minor imperfections found in the deck taper INSERT 72 BAR TO UNSCREW HEAD FROM SEAT PULLER STEM PUMP FLUID END 8 y DISCHARGE ES VALVE DECK EXIT id f PULLER HEAD SUCTION VALVE EAT The puller stem and puller head are provided with tapered locking threads Screw them together using two pipe wrenches applied to the knurled areas provided Then screw the valve seat onto the puller head by hand until it shoulders against the puller shoulder Do not tighten Lower the seat and puller assembly into the fluid end squarely setting the seat into the deck Then pound the top of the stem wi
35. ht is often over looked Discard any throat bushing that becomes worn or scored as it will not then serve its purpose It should fit snugly in the bottom of the box Apply oil generously to this ring Style 838 and 858 Packing Developed by Utex Industries Inc Style 838 and 858 packing is a NON adjustable type packing which depends solely on hydraulic pressure to energize the sealing lips Gland tightening forces do NOT energize the lips Tightening and hydraulic end thrust loads are transmitted entirely through the center support portions of each ring The flattened portions of the rings are large enough to withstand overtightening Do NOT attempt to adjust this type packing It should be kept thoroughly tightened at all times Running it loose will NOT usually cause it to drip at all But it can ruin the box in time Lightly oil each ring and the box bore and then lightly tap in each ring separately with the rings facing correctly This is most easily done before installing the plunger Lantern rings are provided with O D and 1 0 reliefs and two or more oil holes to allow lubricant to reach the plunger After the last unit of Style 838 and 858 packing is in place generously oil the lips of all seal rings to ease plunger entry SEAL RING TOP ADAPTER HARD PHENOLIC BOTTOM ADAPTER HARD PHENOLIC PRESSURE Low nr INSERTING THE PLUNGER Apply oil liberally to plunger O D and lightly tap it through the
36. ill NOT work if installed backward DOUBLE LIP CANNED WIPER The double lip canned wiper oil seal is to keep contamination out of the power frame This seals press fit installation prevents O D contamination while the additional seal lip works in conjunction with Parker rod seals to provide sealing for leakage An aggressive wiping lip facing the element ensures contaminant exclusion along the rod PRESS WIPER BOX 15 INSERTING THE EXTENSION ROD Insert the extension rod through the wiper seals with the tapered thread and entering FIRST Care should be used in moving the extension rod through the seals with wrenching flats entering first Do not force The sharp corners on the wrenching flats may damage the seal lips Resulting in oil leakage EXTENSION ROD 7 WRENCHING FLATS THREADS With extension rod inserted through the wiper box seal thread the tapered threads must be clean into the tapered crosshead female threads Firmly tighten apply torque to the wrenching flats only Never damage the extension rod ground surface WIPER BOX Then fasten the wiper box to the power frame by tightening the cap screws Oil leakage between frame face and wiper box is prevented by use of a gasket beneath the box flange STUFFING BOX PACKING AND PLUNGER ASSEMBLIES GENERAL Myers Aplex Series pumps all feature field removable and replaceable stuffing boxes with plungers separable from the extension
37. ined by four large studs and nuts which extend through the power end serving to clamp the box and the power frame tightly against the fluid end face These four stud nuts must be EVENLY tightened JACKSCREW HOLES FOR BOX REMOVAL Using a socket socket extension and torque wrench tighten clean well oiled threads and nut faces Stud Threads Tightening Torque 1 1 4 8UN 725 775 CONNECTING THE PLUNGER Install the metal baffle plate on the extension rod roll the pump slowly until the extension rod male threads just touch the mating plunger female threads Applying a pipe wrench to plunger knurled area thoroughly tighten the connection Do NOT use a cheater when connecting plunger to extension rod Serves no useful purpose and may damage the connection PACKING Packing life for aramid fiber packing may be improved in some applications by regular systematic lubrication An optional force feed lubricator assembly is often recommended especially for pumps on continuous duty This provides regular controlled supply of lubricant lowering friction and heat Additionally the regular application of the correct lubricant aids dissolving of salt and gyp tending to build up on the plungers in produced water applications For this service Rock Drill Lubricant is a popular and effective packing lubricant Plungers in CO2 ethane or other very cold liquid services may use brake fluid This fluid does not c
38. n promptly dropping it on to the shaft The cone assembly MUST contact the seat thrust face not be cocked and the large end of the rollers MUST be down Do not hammer on the bearing The soft steel cage is easily distorted ruining its function as a roller separator and guide against skewing If the cone does not contact its thrust face properly it must be pressed into place using a specially machined sleeve which does not touch the soft steel cage A hydraulic press is recommended if this difficulty arises CUP INSTALLATION Tapered roller bearing cup outer races is a press fit in the bearing carrier using a hydraulic press Cup must be pressed into a clean carrier until the race solidly abuts its shoulder must not be cocked The tool or plate used for this must contact only the outer end face not on the taper INSTALLING CRANKSHAFT GENERAL Stand the power frame casting on the floor or on a bench with the fluid end face down and crankshaft end up Insert one bearing cup in the left frame cup bore and shoulder it against the bearing retainer with a rubber mallet Pass the crankshaft through the right frame bore Pass the crankshaft through the center bearings and against the installed cup until the bearing cone seats into the left bearing cup Insert a second bearing cup over the right hand crankshaft journal SHIM ADJUSTMENT OF TAPERED ROLLER BEARINGS To provide for crankshaft thermal expansion suffici
39. nd to Power End 7201 0565 00B 1 3 4 5 Thrd Heavy Hex Nut 1 2 Hex Hd Pipe Plug MA 300M 133 134005 243 170 012002 405 Description Valve Cover Screw Part Number 1201 0564 00B Valve Cover 7201 0563 00B O Ring 110 000341 201 1 4 Hex Hd Pipe Plug 5 5 170 014002 405 Liquid End Al Brz 7201 0566 00K 1 1 4 x 6 1 4 Stuffing Box Studs 7507 2738 00A 1 1 4 8 Thrd Heavy Hex Nut 141 114008 243 1 1 8 x 5 Stud Discharge Flange 7201 0567 00A 1 1 8 7 Thrd Heavy Hex Nut 133 118007 243 3 4 x 3 1 2 Stud Suction Flange 7507 2735 00 3 4 10 Thrd Heavy Hex Nut 133 034010 243 2 gt 1 3 4 x 13 1 8 Stud Liquid End to Power End 7201 0568 00B jaa 1 3 4 5 Thrd Heavy Hex Nut 1 2 Hex Hd Pipe Plug 133 134005 243 170 012002 405 27 STUFFING ASSEMBLY 5 Qty 5 per pump ea MA 300L 1 2 3 4 4 5 5 PLUNGER PLUNGER BAFFLE STUFFING BOX STUFFING BOX STUFFING BOX GLAND GLAND DIAMETER CHROME OXIDE SEAL NITRILE STEEL AL BRZ STEEL AL BRZ 7201 0325 32B 7201 0039 00A RUBBER 7201 0007 00A 7201 0584 00B 7201 0054 10 1201 0582 00B 1201 0002 00B 7201 0325 31B 7201 0325 30B 7201 0039 00A 7201 0039 00A 7201 0007 00A 7201 0007 00A 7201 0584 00B 7201 0584 00B 7201 0054 10 7201 0054 10C
40. nd so leads to self priming or easy priming Choice of the minimum size plunger sometimes leads to difficulties especially with pumps that require frequent servicing or which handle volatile liquids or which contain substantial amounts of dissolved air or gas An automatic bypass and purging system for these applications may be merited LUBRICATION Myers Aplex Series pumps use 62 quarts of S A E 40 wt nondetergent oil in the crankcase This oil requires only a nonfoaming additive and should possess good water separation antiemulsion characteristics Such oils are often labeled industrial or turbine quality lubricants If these oils are not available a good quality gear oil or EP oil may be substituted See lubrication guidelines In temperate climates oil viscosity selected should fall between 70 and 84 seconds Saybolt viscosimeter at 210 F In arctic service low pour point oils are needed After the first 500 hours of operation in a new pump drain the oil Refill with clean fresh oil Thereafter change the oil every 1 500 hours or sooner if it becomes contaminated with water or dirt Fill to the center of the sight gauge Recheck after starting adding oil to center of gauge while running V BELT DRIVE A properly designed well aligned V belt will provide years of reliable economical service if properly tensioned and kept dry free of oil and ventilated Alignment is critical for long life If the shaft
41. ng Rod Automotive Type Ductile Iron Average Crosshead Speed at 450 rpm 333 fpm Minimum Life Expectancy Main Bearings Lio 65 000 hr Average Liquid Velocity with 4 plungers 400 rpm Through Valves Through Suction Manifold Through Discharge Manifold 10 7 fps 3 5 fps 13 9 fps 300 ENGINEERING DATA MA 300M ENGINEERING DATA Overall Dimensions and Weight Length 58 63 Liquid End Maximum Continuous Working Pressure 3 600 psi Width 62 13 Hydrostatic Test 5 558 psi Height 22 31 Weight 4 680 Ibs Power End Maximum Input HP at Speed 300 400 rpm Available Liquid End Materials ASTM Nickel Aluminum Bronze Casting Carbon Steel Block Stainless Steel Block B148 C955 516 Various Grades Rated Continuous Plunger Load 10 700 1 Plunger Various Materials Maximum Rated Continuous Speed 400 rpm Normal Continuous Speed Range Minimum Speed 150 to 400 rpm 100 rpm Stuffing Boxes Field Removable and Replaceable Nickel Aluminum Bronze Optional Carbon Steel Oil Capacity 62 U S Quarts Power End Oiling System Pressure Lubrication System Power Frame One Piece Cast Packing Types Available Gland Loaded Nonadjustable Spring Loaded Braided Teflon and Kevlar Spring Loaded V Type Style 838 Style 140 8921K Style 120X Crosshead Full Cylindri
42. of metal valve discs For higher temperatures or pressures Myers Aplex Series offers lapped flat hardened Type 17 4 stainless discs or titanium alloy discs These metal discs are less tolerant of any fine grit in the liquid and are noisier than the acetal resin disc PULLING THE VALVE SEAT First drain the fluid end entirely For abrasion resistant valves use the cage wrench to unscrew the cage from the seat For disc valves unscrew the stem from the seat Remove the cage spring and valve from the fluid end Attach the Myers Aplex Series puller head to the puller stem and tighten their tapered threads with a pipe wrench applied to the knurled areas of the puller stem and head Lower the stem and head into the fluid end and engage the threads of the head onto the seat threads PENTAIR MYERS APLEX SERIES 20 Using a 1 2 bar or screwdriver rotate the head clockwise threading it fully onto the seat But do NOT tighten Slide the bridge over the stem Clean and oil the stem threads Oil the face of the wing nut Thread wing nut down onto the stem seating it on the bridge top firmly Extract the seat from the pump by striking the wing nut with a heavy hammer A hydraulic ram may also be used Stand clear of the pump when applying heavy tonnage as the entire assembly will jump violently upward when the pulling energy is suddenly released The Myers Aplex Series puller setting tool and gauge tool are custom designed and
43. ongeal into a solid that cannot enter the packing Consider the use of an air sealed cradle into which dry instrument air may be directed excluding the moisture which causes plunger icing especially in very humid conditions Packing lubricant for pumps on light hydrocarbons hot water lean oil naphtha or gasoline often requires experimentation A good start is to use steam cylinder oil Castor oil is sometimes successful as a packing lubrication for liquid propane and butane services at ambient temperature In pumps placed in arctic service a special low pour point oil is indicated Packing lubrication is not permitted on some services such an amine food stuffs etc and other packing styles and materials may be required PLUNGERS Myers Aplex Series offers its own unique product the Myers Aplex Series Rokide plunger This premier quality plunger consists of a chromium oxide deposition on a solid stainless steel body Ordinary handling will not damage this fine product Avoid striking the coated surface black during installation Apply light forces only on the ends of the plunger Do not hammer or pry All threads on Myers Aplex Series plungers must be CLEANED and oiled before assembly Stainless steel although very corrosion resistant has a tendency to gall and seize To avoid this an anti seizing lubricant is well worth its use Apply oil to the threads and the rubbing surface Myers Aplex Series can s
44. orage in a humid environment for more than 6 months the crankcase cover should be removed and carefully examined for rust or water collected in the power end Flush out any evidence of rust or damage that exists using a light clean oil Pumps to be placed in extended storage should be cleaned repaired as needed and completely filled to the top with clean oil to prevent rusting Rotate pump monthly 4 1 2 revolutions Plug all openings to prevent air entry and oil leakage Fluid ends must be completely drained of water and suction and discharge ports blanked off Store pump in a clean dry location PUMP LOCATION AND PIPING DESIGN Locate pump and driver in a clean well drained ventilated and brightly illuminated area with adequate working spaces around the pump to provide ample access to fluid end power end and associated drive elements Do not expect good maintenance to result if the pump is positioned on muddy terrain or in a dirty cramped dimly lighted area The supply tank s should be large to allow dissolved air and other gases to escape from the liquid and allow suspended solids to settle out before entering pump A system employing dams and settling chambers is desirable Pumps are not designed to withstand piping weight vibration and the effects of thermal piping expansion contraction Piping loads may be considerable and the weight of all valving dampeners filters and associated forces moments and couples mu
45. p speed Reduce Check drive ratio Worn valves or seats Replace or reface Broken valve spring Replace Loose plunger Tighten Loose or worn bearings Adjust or replace Worn crossheads or guides Replace Loose crosshead pin Loose connecting rod cap bolts Adjust or replace Pump running backward 21 Correct rotation TROUBLE LOCATION AND REMEDY Trouble Pump vibrates or pounds Consistent knock Packing failure excessive Wear of liquid end parts Liquid end cylinder failure Wear of power end parts excessive gt PENTAIR Possible Cause Water in power end crankcase Drain Refill with clean oil Worn or noisy gear Water in power end crankcase Replace Drain Refill with clean oil Worn or noisy gear Worn or loose main bearing crank pin bearing wrist pin bushing plunger valve seat low oil level NOTE High speed power pumps are not quiet Checking is necessary only when the sound is erratic Improper installation Replace Adjust or replace Add oil to proper level Install per instructions Improper or inadequate lubrication Lubricate per instructions Improper packing selection Change to correct packing Scored plungers Replace Worn or oversized stuffing box bushings Repair or replace Check bore and outside diameter of bushings frequently Many times plungers
46. r A good discharge piping system includes 1 A properly sized correctly set relief valve Discharge from relief valve returned to tank not to pump suction 2 A full opening discharge gate or ball valve Avoid restricting plug valves globe valves and angle valves 3 A pressure gauge with gage dampener or snubber Consider a liquid filled gauge Scale range to be double the normal pump operating pressure Locate the relief valve and pressure gauge ahead of any block valve and so that the pressure in the pump is always reflected at the relief valve The relieving capacity of the relief valve must exceed the capacity of the pump to avoid excessive pressure while relieving Use a full size relief line To minimize vibration whether hydraulic or mechanical discharge lines should be kept short direct well supported and solidly anchored Avoid dead ends and abrupt direction changes BYPASS PIPING Some designers ignore this important aspect of proper design of pump piping systems A reciprocating pump especially after maintenance of the valves or plungers STARTS WITH ONE OR MORE FLUID CHAMBERS FULL OF AIR Pumps operating on propane butane or other volatile liquids START WITH VAPOR IN THE FLUID CHAMBER S Positive displacement pumps do not automatically purge themselves of air and gas after shutdown For example a quintuplex plunger pump will after servicing expel the air in four of the five pump chambe
47. rods If desired the boxes plungers and packing units may be installed or removed as a unit assembly permitting service outside the pump boxes are retained by four 4 studs and nuts and are centered in the frame bore ensuring correct alignment The plungers may also be removed separately without box removal to facilitate repacking With this option the necessary space required to remove plunger it is first necessary to remove the extension rod SPRING LOADED PACKING Compression Packing SPRING GUIDE SPACERS GLAND RING ZZ NS 7 A PACKING x SPRING SPRING GUIDE VDA GLAND RING Chevron Packing Note that the gland is screwed tightly onto the box and contacts its face The spring is providing all of the initial compression and adjustment No adjustment is provided by the gland Since the force exerted by the spring is contingent on the space provided for it the correct lengths of all rings is essential for good tensioning Spring A stiff Inconel spring which closely fits the bore of the stuffing box is used in this assembly This spring is compressed in a vise to the operating length required plus 0 25 and tied with waxed nylon spot tie cord The cord is looped over the ends of the spring through the coils and tied to maintain the length mentioned above Each PENTAIR MYERS APLEX SE
48. rs Thus the pressure from four of the active cylinders will keep shut the discharge valve of the inactive or air bound cylinder Then the air or gas in this cylinder will be compressed and expanded by its reciprocating plunger and never leave the chamber Similar effects occur in duplex and tri plex pumps To overcome these difficulties adequate provision for expelling the gas in the air bound cylinders must be present Common practice is to totally relieve the pump of all discharge pressure during the start up after servicing Consider the operational advantage of a full sized bypass line return to tank which substantially removes discharge pressure from all cylinders during the start This requires a block valve on the discharge side and a full opening bypass valve on the other side For economy the bypass to tank can be combined with the relief valve discharge line This line must be full sized well supported and sloped downward to avoid freezing in cold weather A frozen relief valve line provides NO protection to either the pump or operating personnel The ability of a reciprocating pump to be self priming depends on the ratio of the swept displaced volume in the cylinder to the unswept clearance volume at the end of the stroke This depends on the design of the fluid end and on the plunger size selected Choice of the largest size plunger for a particular fluid end improves this compression ratio a
49. st be completely iso lated Use flexible hoses and rigid piping supports to isolate the pump and its driver from these effects SUCTION PIPING No part of the piping system deserves more careful planning than the suction piping system Suction piping must be SHORT DIRECT and OVERSIZE Use one pipe size larger than the pump suction connection For example since the suction connection for the MA 300L pump is 8 use a 10 short direct suction line from the tank to this pump The shorter it is the better 1 to 3 feet per second suction velocity is acceptable Use no elbows tees or restricted port valves in this line Do not install orifice plates or positive displacement type fluid meters in the suction line which act as flow restrictors Avoid the use of suction filters if possible Consider filtering the liquid as it enters the supply tank rather than as it leaves it The use of an eccentric reducer with the flat side up located at the pump suction connec tion is recommended The suction line should slightly rise from tank to pump and loops in which air may collect must be avoided The absolute pressure in a suction line may be less than atmospheric pressure and air may be sucked into the line unless all flanges and connections are airtight and watertight If you can see water leaking out of a suction line when the pump is still that may mean air is being sucked in when the pump is running Suction piping should be buri
50. th a 6 pound hammer Unscrew the head and stem from the seat using a 1 2 bar or screwdriver into the hole provided at the top end of the stem 19 INSTALLING ABRASION RESISTANT VALVES Install nitrile O ring over the threaded section of the seat and position it at the bottom of the threads Install the polyurethane insert into the valve and position it into the groove Position the valve into the hole in the center of the installed seat Install the valve spring Apply anti seizing lubricant to the threads of the valve cage and screw the cage on to the threaded valve seat with cage setting tool INSTALLING DISC SPRING DISC VALVES AND STEM Myers Aplex Series offers discs of Delrin acetal resin of 17 4PH S S hardened and ground and of titanium alloy Position the disc and Inconel spring on the seat aligning the hole in the disc with the stem threads in the seat center The stem spring retainer and locknut are shipped from Myers Aplex Series already assembled and tightened with a torque wrench with Loc Tite sealant added to the top stem threads only 5 8 11UNC 125 1 2 13UNC 65 135 ft Ib T5 ft Ib MA 300L MA 300M Use an anti seizing lubricant in these threads This is very necessary when seats and stems of Type 316 stainless steel are selected optional to prevent galling CLEANLINESS of threads and other contacting surfaces is of paramount importance in the assembly of all valve
51. upply solid ceramic plungers on order This plunger is very fragile vulnerable to thermal and mechanical shock and must be handled with the greatest care Use only a rubber mallet to PENTAIR MYERS APLEX SERIES insert it into the packing Other plunger types are available upon request DISC VALVE SYSTEMS AND ABRASION RESISTANT GENERAL Myers Aplex Series has developed a unique setting puller system permitting quick easy and safe methods of installing and removing tapered seat valves The system allows servicing without distortion of the seat with minimum effort and NO damage to fluid end tapers or seat Tapered seats notoriously drive solidly down into mating deck tapers so firmly that extraction heretofore has always posed severe problems Old style valves may be pulled only with the greatest effort using J puller heads prone to failure CO2 dry ice and other improvisations DISC VALVE and ABRASION RESISTANT VALVE CONSTRUCTION LOCK NUT SPRING RETAINER SPRING VALVE DISC VALVE STEM PULLING THREADS VALVE SEAT VALVE SPRING GUIDE CAGE POLYURETHANE INSERT VALVE BODY VALVE SEAT The Myers Aplex Series valve is a AL made subassembly using threads cut into the rim of seat for use with Myers Aplex Series setting pulling tool These threads DO NOT deteriorate as proved by field experience By locating these on the rim setting pulling forces are now applied only to the rim of the seat nev
52. us Speed 400 rpm Plunger Type Various Materials Normal Continuous Speed Range 150 to 400 rpm Minimum Speed Oil Capacity 100 rpm 62 U S Quarts Power End Oiling System Pressure Lubrication System Power Frame One Piece Cast Iron Crosshead Full Cylindrical Cast Iron Stuffing Boxes Field Removable and Replaceable Packing Types Available Gland Loaded Nonadjustable Spring Loaded Braided Teflon and Kevlar Spring Loaded V Type Nickel Aluminum Bronze Optional Carbon Steel Style 838 Style 140 8921K Style 120X Crosshead Diameter x Length 5 3 4 x 6 3 16 Valve Cover and Cylinder Head Plugs 316 SS Crankshaft Ductile Iron Retainer Plates Ductile Iron ASTM A536 80 55 06 Crankshaft Diameter at Tapered Roller Bearings Crankshaft Diameter at Crankpin Bearings Diameter x Length 4 3 4 4 1 2 x 3 3 4 Seals for Stuffing Boxes Valve Covers Cylinder Heads Buna N Crosshead Wrist Pin Case Hardened and Ground AISI 8620 Main Bearings Tapered Roller Timken Disc Valve Types Regularly Furnished Acetal Resin Optional Hardened and Lapped Delrin 17 4 PH SS Crankpin Bearings Precision Automotive Steel Backed Babbitt Lined Valve Spring Material Inconel Valve Seat Liquid Passage Areas 6 54 sq in Extension Pony Rod Integral with Plungers 17 4 PHSS Connecti
53. ves and seats replace packing or plungers Insufficient NPSHA Pump not filling Increase suction pressure Prime pump Makeup in suction tank less than displacement of pump Increase makeup flow Reduce pump speed Vortex in supply tank Increased liquid level in supply tank Install vortex breaker One or more cylinders not pumping Prime all cylinders Allow pump to operate at low pressure through bypass valve to eliminate vapor Suction lift too great Decrease lift Raise tank level Broken valve springs Replace Stuck foot valve Clean Pump valve stuck open Remove debris beneath valve Clogged suction strainer Clean or remove Relief bypass pressure valves leaking Piping too small and or too long Repair Increase size and decrease length Use booster pump Use suction and or discharge pulsation dampeners Worn valves or seats Replace or reface Piping inadequately supported Gas in liquid Improve support at proper locations Submerge return supply or makeup lines in suction supply tank If operating under a suction lift check joints for air leaks Pump valve stuck open Remove debris beneath valve Pump not filling Increase suction pressure One or more cylinders not pumping Prime all cylinders Allow pump to operate a low pressure through bypass valve to eliminate vapor Excessive pum
54. without being obligated to provide such a change or improvement for prior sold and or shipped units Seals piston cups packing plungers liners and valves used for handling clear fresh nonaerated water at a temperature not exceeding 12096 are warranted for ninety days from date of shipment other applications are subject to a thirty day warranty Accessories such as motors engines and auxiliary equipment are warranted by the respective manufacturer and are excluded in this standard warranty Under no circumstance will Pentair Myers be responsible for the cost of field labor travel expenses rented equipment removal reinstallation costs or freight expenses to and from the factory or an authorized Pentair Myers service facility This limited warranty will not apply a to defects or malfunctions resulting from failure to properly install operate or maintain the unit in accordance with the printed instructions provided b to failures resulting from abuse accident or negligence c to normal maintenance services and parts used in connection with such service d to units that are not installed in accordance with applicable local codes ordinances and good trade practices e if the unit is moved from its original installation location f if unit is used for purposes other than for what it is designed and manufactured g to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized Pentair Myers service

MODEL MA-300 - Pentair Water Literature

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