instruction and maintenance manual
Contents
1. Place shim stock in the required thickness against shoulder in the bearing bore Place gearbox on arbor press with front pump end up Place shaft assemblies in gear box with spline end up and with shafts in the correct location to provide top or bottom drive as required Press shafts into housing until bearing is seated against shims Place body on gear box making sure it is firmly seated Install rotors on shafts Secure with rotor retaining nuts tighten first nut on shaft by striking nut wrench with soft faced hammer then tighten second nut against first in the same way to jam nuts together Check back face clearance against value on Table 6 under Standard Clearances If necessary remove rotors then remove shafts to adjust shim thickness When back face clearance has been established in accordance with the value shown in Table 6 remove body and secure shaft assemblies in the gear box with bearing retainers Do not apply sealant at this time Retainers must seat firmly against the bearing and leave 050 060 clearance between retainer and gear box Use shims if needed to obtain this clearance See Figure 16 030 010 CLEARANCE EN l SHIM HERE 24 F_NEEDED FIGURE 16 Make sure backface clearance is correct Remove bearing retainers and grease both front and rear bearings through grease fittings until grease is visible around ball asse2. 4 Atmospheric Vacuum TRA 10 PUMP PERFORMANCE Displacement per Revolution Maximum Pressure Nominal Capacity f 8 1 0 800 oso oo 20 now oo 20 14 aooo aves 5 ae 700_ oo o aa aoa or 200 14 faos a010 1s ae 20 s10 e o 62 005 ozs 20 14 400s aoro as s 20 51 0 600 aio os aoo 27 aooo are 20 si 9x ww w0 204 fas ose mo sm a0rwre0 25 e 3o veo m o fioo 41 os oss 200 14 a0 to200 a0rwre0 30 76 40 wzo em m fono 704 aso 198 200 14 arse avv 40702 9x wm 4800 i020 ars ass mo w 4rwxw 4ve r o wo 9x TABLE 2 PUMP PERFORMANCE PARAMETERS Example of Rectangular Flange model TRA 10 Rectangular Flange Model Nominal Capacity GPM M hr Displacement per Revolution Maximum Pressure Temperature Range Inlet W x L Deg F Deg C in Outlet Maximum Speed mm wo 240 s4 oo 022 39 t 0 37 40 160 175x675 aesox 7145 6 19 227 025 096 2 t 40 200 4 toss 297x825 7544 x23495 TABLE 2A PUMP PERFORMANCE PARAMETERS RECTANGULAR FLANGE MODELS or ana tas nis 057 zo t 40 t 300 40 10 224x882 5690x2208 SECTION IOM TRA 10 ISSUE B PAGE 4 OF 20 PORT CONFIGURATIONS PERFORMANCE RANGE e Capacity Range 0 1 to 450 gpm 0 02 to 102 m hr e Pressure Range to 200 PSI 14 Bar Model 0450 to 400 PSI 27 Bar e Temperature
3. IN WARNING To avoid serious injury or death do not install or service pump unless power is off and locked out 13 Make sure inlet and outlet connections are tightened If pump has double seals connect seal flushing piping A WARNING Do not operate pump without guards in place IN WARNING Do not put fingers in ports or near rotating members These connections are normally 1 8 female pipe threads Liquid used for flushing can be connected of the seals and discharged to drain on the opposite side Flow should be about 1 4 GPM but may be increased for high temperature applications but should be kept as near to 1 4 GPM as possible to avoid seal damage 14 Lubrication Refer to Tables 3 and 4 Gears are lubricated with oil conforming to ISO 460 SAE 140 AGMA grade 7 or FDA 21 CFR 178 3570 for top or bottom shaft mounting position and oil is added at the factory Oil Amount gears Grease Amount per fitting Top Bottom Mount 0060 0150 1 3 oz 3 3 oz 0 37 oz 0 13 oz 0180 40 mL 100 mL 11 cc 4 cc 0300 2 0 oz 4 0 oz 0 60 oz 0 21 oz 60 mL 120 mL 18 cc 6 cc 0450 0600 6 0 oz 9 5 oz 0 84 oz 0 76 oz 1300 170 mL 280 mL 25 cc 22 cc 2200 11 0 oz 20 0 oz 1 33 oz 1 03 oz 320 mL 600 mL 39 cc 30 cc 3200 17 0 oz 44 0 oz 1 96 oz 1 16 oz 500 mL 1300 mL 58 cc 34 cc TABLE 3 LUBRICATING OIL AND GREASE AMOUNT Conforming to ISO 460 or Conforming to ISO 220 SAE 140 or AGMA
4. O rings Outer Seal Remove seal from body If chipped scratched or evidence of cracks discard seal Remove and discard O rings Seal Seat Remove seal seat from shaft If chipped scratched or evidence of cracks discard seal Make sure shoulder is clean remove burrs if present remove and discard O rings FIGURE 10 FIGURE 11 GLE O RING SEAL DOUBLE O RING SEAL NJ NZ Net CLL 7 UY 7 OUTER Y C ZA pum 7 l FIGURE 12 FIGURE 13 NGLE MECH SEAL DOUBLE MECH SEAL SEAL ASSEMBLY For 3200 model pump consult factory Prior to reassembling the pump head inspect all parts to make sure they are free from damage Nicks scratches and cracks in mechanical seal components may cause seal leakage and nicks scratches and burrs on any pump part may cause leakage or performance problems Refer to sketches with disassembly instructions Single O ring See Figure 10 Apply a suitable O ring lubricant to new O rings and insert them into the body and shaft grooves O rings on shafts should be installed in the groove closest to the spline Assemble shaft sleeves against shaft shoulder If sleeve is slotted assemble with slot over drive pin in shaft If sleeve has prongs assemble with prongs on either side of drive pin Do not re use sleeves that are grooved or scratched Double O ring See Figure 11 Apply a
5. 2 Recheck alignment after installation and before start up 3 Recheck alignment periodically to maximize service life FIGURE 1 TRA 10 SERIES SAFETY INFORMATION INCORRECT INSTALLATION OPERATION OR MAINTENANCE OF EQUIPMENT MAY CAUSE SEVERE PERSONAL INJURY OR DEATH AND OR EQUIPMENT DAMAGE AND MAY INVALIDATE THE WARRANTY This information must be read fully before beginning installation operation or maintenance and must be kept with the pump All installation and maintenance must be undertaken by suitably trained or qualified persons only Danger Failure to follow the listed Warning Safety instructions which Symbol f de shall be considered for reasons of safe y PO IT identified by operation of the pump or pump unit and Legend Is symbon may SresuE IN SEHOHS MIUCy or protection of the pump or pump unit SECTION IOM TRA 10 ISSUE B or death DO NOT OPERATE PUMP IF The front cover is not installed correctly Any guards are missing or incorrectly installed The suction or discharge piping is not connected DO NOT place fingers etc into the pumping chamber or its connection ports or into any part of the drive train if there is ANY possibility of the pump shafts being rotated Severe injury will occur DO NOT exceed the pumps rated pressure speed and temperature or change the system duty parameters from those for which the pump was originally supplied without confirming its suitability
6. N m Torque Ibf ft Qty Pump 8 1 9 5 4 8 1 9 5 4 8 1 9 5 4 Size in 5 16 18 5 16 18 5 16 18 Torque N m 14 9 16 3 14 9 16 3 14 9 16 3 Torque Ibf ft Qty Pump 11 12 4 11 12 4 11 12 4 Size in 118 32 118 32 8 32 Torque N m 13 56 27 12 13 56 27 12 13 56 27 12 Torque Ibf ft 10 20 SECTION IOM TRA 10 ISSUE B 10 20 10 20 PAGE 13 OF 20 ASSEMBLY TORQUE CONT D Description Location Description Location Front Qty Pump 8 8 8 Front Qy Pump 8 8 8 Cover Size in 2 114 2 1 4 2 1 4 Cover Size in 2 1 4 2 1 4 2 1 4 Rotor Torque N m 7 3 8 6 244 268 24 4 26 8 Rotor Torque N m 24 4 26 8 24 4 26 8 24 4 26 8 Case Torque bf Case Torque bef 18 1 198 18 1198 181 198 Qty Pump Qty Pump 4 4 4 Rotor Rotor Size in 1 1 16 8 1 0 16 8 1 1 16 8 Rotor Rotor Size in 1 1 16 8 1 9 16 8 2 1 4 8 Retainer Shaft Torque N m 6 8 8 1 6 8 8 1 6 8 8 1 Retainer Shaft Torque N m 6 8 8 1 9 5 12 2 14 9 18 9 Torque Ibf ft 5 6 5 6 5 6 Torque bff 5 6 7 9 11 14 Rotor Qy Pump 2 2 2 sus Rotor Qty Pump 2 2 2 Case Size in 1 4 20 3 816 3 8 16 i Case Size in 3 8 16 3 816 3 8 6 ea a Gearbox Torque N m 8 1 9 5 27 1 29 8 27 1 29 8 d Gearbox Torque N m 27 1 29 8 27 1 29 8 27 1 29 8 Housing Torque
7. SOLE WARRANTY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED WHICH ARE HEREBY EXCLUDED INCLUDING IN PARTICULAR ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE No officer or employee of IDEX Corporation or Wright Flow Technologies Inc is authorized to alter this warranty AMERICAS Wright Flow Technologies Inc 406 State Street Cedar Falls lowa 50613 0008 U S A Phone 319 268 8013 Fax 803 216 7686 E mail wright usa idexcorp com 3 www wrightflowtechnologies com EUROPE amp ASIA Wright Flow Technologies Ltd Highfield Industrial Estate Edison Road Eastbourne East Sussex United Kingdom BN23 6PT Phone 44 0 1323 509211 Fax 44 0 1323 507306 E mail wright eu idexcorp com Copyright 2012 Wright Flow Technologies Inc e A Unit of IDEX Corporation Wright Flow Technologies CORPORATION 406 State Street e Cedar Falls lowa 50613 U S A All rights reserved
8. Visually inspect rotor wing tips for signs of metal to metal contact If present the pump should be repaired or replaced Possible causes Worn shaft spline replace shaft Worn rotor spline replace rotor usually both parts wear often due to running a loose rotor Loose or worn gears key keyway shaft inspect and replace as needed Visually inspect the rotor hub where it contacts the shoulder on the shaft for wear Possible cause Running loose rotor replace rotor and correctly tighten or re shim shaft to maintain backface clearance Inspect shoulder on shaft for wear Possible cause Running loose rotor replace or re shim shaft Check gear backlash Replace nuts and turn shaft with wrench There should be no free movement of either shaft Possible causes Worn gear teeth replace gear Gear loose on shaft remove gear inspect key keyways and shaft Replace worn parts and retighten Check condition of bearings Hand load about 30 Ibs each shaft There should be no detectable movement Cause of movement Bearings worn due to lack of lubrication or overload replace bearings and ensure adequate lubrication reduce hydraulic load If gear box disassembly is required refer to Gear Box Disassembly and Assembly When pump is assembled there must be equal clearance where shown See Figure 6 Follow lubrication intervals as shown in Tables 3 and 4 CLEARANCE ON BOTH SIDES J MU
9. 1 of Pump Head and Seal Disassembly Assembly and drain oil from gear box Remove cap screws Remove cover using soft hammer to loosen Scrape sealant from gear box and cover Remove oil seal from cover using an arbor press Discard seal Using hammer and drift pin straighten locking tab on lockwashers Prevent shafts from turning by wedging a wooden block between the gears Use a spanner wrench or drift pin to remove the gear lock nuts SECTION IOM TRA 10 ISSUE B PAGE 11 OF 20 10 11 12 Wrap splines and ends of shafts with tape to protect them Remove front bearing retainer bolts Remove sealant from retainers and gear box press out and discard grease seals If retainers are stuck they will press out when shaft is removed Refer to cleaning process described above once removed Place gear box on arbor press with pump head end down Protect shaft ends with a wooden block and press shafts out of gear box Remove shims If they will be reused identify the shaft on which they were used Press out and discard rear grease seals Use hydraulic press and V blocks to remove bearings and spacer See Figure 15 GEAR BOX ASSEMBLY 1 SECTION IOM TRA 10 ISSUE B Coat front bearing area of shaft with grease conforming to ISO 220 NLGI grade 2 or NSF USDA H1 and position shaft in hydraulic press with spline down Place front bearing over shaft with shield side up Press onto shaft until bearing is seated ag
10. for the new duty INSTALLATION AND OPERATION OF THE PUMP MUST ALWAYS COMPLY WITH HEALTH AND SAFETY REGULATIONS A device must be incorporated into the pump system or drive to prevent the pump exceeding its stated duty pressure It must be suitable for both directions of pump rotation where applicable Do not allow pump to operate with a closed blocked discharge unless a pressure relief device is incorporated If an integral relief valve is incorporated into the pump do not allow re circulation through the relief valve for extended periods The mounting of the pump or pump unit should be solid and stable Pump orientation must be considered in relation to drainage requirements Once mounted shaft drive elements must be checked for correct alignment Rotate pump shaft by at least one full revolution to ensure smoothness of operation Incorrect alignment will produce excessive loadings and will create high temperatures and increased noise emissions The installation must allow safe routine maintenance and inspection to check for leakage monitor pressures etc and provide adequate ventilation necessary to prevent overheating Before operating the pump be sure that it and all parts of the system to which it is connected are clean and free from debris and that all valves in the suction and discharge pipelines are fully opened Ensure that all piping connecting to the pump is fully supported and correctly aligned with its relevant co
11. grade 7 or NLGI grade 2 and FDA 21 CFR 178 3570 and NSF USDA H1 Governing Standard Chevron Lubricating Oil Chevron FM Grease FM ISO 460 CSC 2 EP or equivalent to or equivalent to Governing Standard Governing Standard TABLE 4 SUGGESTED LUBRICATING OIL AND GREASE BRAND Suggested Brand Names Bearings are greased with grease conforming to ISO 220 NLGI grade 2 or NSF USDA H1 Grease bearings after every 250 hours of operation change oil every 500 hours Where moisture and or condensation are heavy change oil and grease more frequently If temperature is 5 F or below bearings should be greased with silicon grease SECTION IOM TRA 10 ISSUE B PAGE 7 OF 20 STARTUP CHECKLIST Q Has protection from high pressure been considered See Installation step 5 Are pump and all piping clean and free of foreign material gaskets weld slag bolts etc DO NOT USE PUMP TO CLEAN SYSTEM Are connections tightened and leak free Is gear drive properly lubricated See Installation step 14 Are all guards in place and secure Have seals requiring flushing been supplied with an adequate supply of clean flushing fluid Are all valves open on the discharge side of the pump DOJO Are all valves open on the inlet side of the pump and is the material to be pumped reaching the pump Is direction of rotation correct See Installation step 10 Jog or start pump at low speed when possible Check to see that pump i
12. ibfit 67 20 22 20 22 Housing Torque bff 20 22 20 22 20 22 Qty Pump Qty Pump Lip Seal Size in sie 18 3 8 16 3 8 16 Lip Seal Size in 3 8 16 3816 5 16 18 Mounting Mounting Bracket Torque N m 14 9 16 3 27 1 298 27 1208 Bracket Torque N m 27 1 29 8 27 1 298 149 163 Torque Ibf ft 11 12 20 22 20 22 Torque Ibf ft 20 22 20 22 11 12 Front Qty Pump 8 8 8 Front Qty Pump 8 8 8 Cover Size in 5 6 18 3 816 3 8 6 Cover Size in 3 816 7 16 4 5 8 11 Socket Head Cap Screw Gearbox Torque N m 14 9 16 3 27 1 29 8 27 1 29 8 Gearbox Torque 27 1 29 8 42 0 46 1 124 7 136 9 Housing Housing Torque Ibf tt 9 10 18 20 18 20 Torque 18 20 29 32 90 99 Qty Pump 2 2 2 Qty Pump 2 2 2 Size in N 07 N 09 N 09 Size in N 09 N 11 N 13 Gearbox Gearbox Locknut 135 6 210 18 210 18 Locknut 210 18 230 52 230 52 Housing Torque N m 43528 23730 23730 Housing Torque Nem 93739 25764 25764 Torque bf t 100 130 155 175 155 175 Torque 155 175 170 190 170 190 Qty Pump Gearbox Size in 14 20 316 3 8 16 Gearbox Size i 38 16 3 16 3 8 16 Housing Torque N m 8 1 9 5 27 1 29 8 27 1 29 8 Housing Torque 27 1 29 8 27 1 29 8 27 1 29 8 Torque bff 67 20 22 20 22 Torque 20 22 20 22 20 22 Qty Pump 4 4 4 4 4 4 Mount
13. 127 mm 0 178 mm 0 003 in 0 005 in 0 006 in 1300 1340 0 076 mm 0 127 mm 0 152 mm 0 005 in 0 006 in 0 007 in 2200 2240 0 127 mm 0 178 mm 0 006 in 0 007 in 0 010 in 3200 0 152 mm 0 178 mm 0 254 mm TABLE 6 ASSEMBLY TORQUE Description Rotor Retainer Socket Head Cap Screw Locknut Socket Head Cap Screw Socket Head Cap Screw Location Front Cover Rotor Case Rotor Case Gearbox Housing Lip Seal Mounting Bracket Front Cover Gearbox Housing Gearbox Housing Gearbox Housing Mounting Flange Qty Pump Size in Torque N m Torque Ibf ft Qty Pump Size in Torque N m Torque Ibf ft Qty Pump 2 2 2 Size in 1 4 20 1 4 20 1 4 20 Torque N m 8 1 9 5 8 1 9 5 8 1 9 5 Torque Ibf ft Qty Pump 6 7 8 6 7 8 6 7 8 Size in 1 4 20 1 4 20 1 4 20 Torque N m 8 1 9 5 8 1 9 5 8 1 9 5 Torque Ibf ft Qty Pump 6 7 8 6 7 8 6 7 8 Size in 1 4 20 1 4 20 1 4 20 Torque N m 8 1 9 5 8 1 9 5 8 1 9 5 Torque Ibf ft Qty Pump 4 5 2 4 5 2 4 5 2 Size in N 05 N 05 N 05 Torque N m 67 8 94 92 67 8 94 92 67 8 94 92 Torque Ibf ft Qty Pump 50 70 6 50 70 6 50 70 6 Size in 1 4 20 1 4 20 1 4 20 Torque
14. CORPORATION WARRANTY Wright Flow Technologies warrants all products manufactured by it to be free from defects in workmanship or material for a period of one 1 year from date of startup provided that in no event shall this warranty extend more than eighteen 18 months from the date of shipment from Wright Flow Technologies If during said warranty period any products sold by Wright Flow Technologies prove to be defective in workmanship or material under normal use and service and if such products are returned to Wright Flow Technologies factory at Cedar Falls lowa transportation charges prepaid and if the products are found by Wright Flow Technologies to be defective in workmanship or material they will be replaced or repaired free of charge FOB Cedar Falls lowa Wright Flow Technologies assumes no liability for consequential damages of any kind and the purchaser by acceptance of delivery assumes all liability for the consequences of the use or misuse of Wright Flow Technologies products by the purchaser his employees or others Wright Flow Technologies will assume no field expense for service or parts unless authorized by itin advance Equipment and accessories purchased by Wright Flow Technologies from outside sources which are incorporated into any Wright Flow Technologies product are warranted only to the extent of and by the original manufacturer s warranty or guarantee if any THIS IS WRIGHT FLOW TECHNOLOGIES
15. ENCH WTOS00SPWRENCH WTO600SPWRENCH WT2200SPWRENCH NORMAL OPERATION Normal operation of most Wright Flow TRA 10 Series pumps is within a range of 0 to 600 rpm with a pressure range of 0 to 200 psi Standard rotors operate within a temperature range of 40 F to 200 F Hot clearance rotors operate at 200 F to 300 F Consult factory for operation at other values Refer to Table 1 Pump Characteristics Wright Flow Technologies TRA10 pumps are positive displacement low slip stainless steel pumps designed with larger diameter shafts for greater strength and stiffness mounted on a heavy duty cast iron bearing frame stainless steel option available with double tapered roller bearings e Up to 200 psi 13 8 bar pressure capability e No bearings in the product zone e Heavy duty bearing frame with large diameter shafts e Greased lubed bearings for positive lubrication to all bearings over entire speed temperature and pressure range e Non galling ASTM A 494 rotors are standard permits running at tighter clearances and pumping a wide range of viscosities GENERAL TRA10 Pumping Principal The pumping action is generated by the counter clockwise rotation of two pumping elements rotors within a chamber rotorcase see Figure 2 The rotors are located on shafts which in turn are mounted within an external gearbox and supported by the bearings the timing gears are also located on the shafts The timing gears tra
16. Range 40 F to 300 F 40 C to 150 C Note Hot clearances required for high temp operation e Viscosity Range 28 to 910 000 SSU 1 to 200 000 cPs Sanitary Clamp Bevel Seat ACME Note Consult factory for applications greater than 910 000 Other port configuration options include SSU 200 000 cSt Chocolate clearances available e DIN 11851 e SMS e RJT e 150 or 300 flange e NPT e Rectangular inlet flange TRA 10 DIMENSIONS OPTIONAL FOOT LOCATION H 0 375 x 0 31 s 53 9 5 x 8 slot 24 0 375 x 0 31 s 53 9 5 x 8 slot 24 0 375 x 0 31 s 53 9 5 x 8 slot 24 0 438 x 0 44 s 99 11 x 11 slot 45 kg 0 56 x 0 50 slot 290 Ib 14 x 13 slot 132 kg 0 56 x 0 50 slot i 290 Ib 14 x 13 slot i 132 kg 0 56 x 0 50 slot i 312 Ib 14 x 13 slot 142 kg 0 56 x 0 19 slot 555 Ib 14 x 5 slot 252 kg 0 66 1050 Ib 16 4TT kg SECTION IOM TRA 10 ISSUE B PAGE 5 OF 20 EQUIPMENT SERIAL NUMBER All Wright Flow Technologies pumps are identified by a serial number on the gear case nameplate which is stamped on the pump body and cover N CAUTION The gear case body and cover must be kept together as a unit due to backface rotor and c
17. ST BE EQUAL FIGURE 6 ANNUAL MAINTENANCE Conduct the same checks as above and in addition do the following 1 Check bearings for radial play using a dial indicator as shown If indicator reading is equal to or greater than the rotor to body clearance in Table 6 under Standard Clearances replace bearings See Figure 7 oo o of E FIGURE 7 2 Drain oil remove gear box cover and inspect gears for wear backlash and looseness Retighten as needed 3 Carefully inspect rotors visually for worn splines bearing shoulder wear and for stress cracks Replace worn or cracked rotors See Figure 8 INSPECT FOR STRESS CRACKS FIGURE 8 4 See Table 6 under Standard Clearances and check radial and back face clearance to determine wear See Pump Head and Seal Disassembly Assembly for disassembly and assembly When replacing bearings or shafts in the field care must be taken to properly shim the shaft to provide the correct clearances between the rotors body and cover Operating speed adjustment can compensate for wear in some applications When performance is no longer acceptable you may take advantage of the Wright Flow Technologies remanufacturing plan as follows REMANUFACTURING PROGRAM Wright Flow TRA10 Pumps may be re
18. ainst shoulder Place bearing spacer over shaft to seat on front bearing See Figure 14 Fes fate FRONT BEARING ONLY FIGURE 14 Coat rear bearing area on shaft with grease conforming to ISO 220 NLGI grade 2 or NSF USDA H1 Slide rear bearing over shaft with shield side down Press bearing onto shaft until it seats against spacer See Figure 15 PRESS AGAINST cla INNER RACE ONLY b ING SPACER Wright Flow pumps have close running tolerances to provide efficient operation The position of the rotors is controlled by the use of shims behind the front bearing in the gear box These shims control both the backface clearance between the rotors and the bottom of the rotor pocket in the housing and the clearance between FIGURE 15 PAGE 12 OF 20 the rotors and the cover See Table 6 under Standard Clearances for these dimensions Clearance for both rotors should be equal to avoid rotor to rotor contact To establish the correct shim thickness make the following measurements in 0 001 inches A Measure body width B Measure depth of rotor bore C Measure distance from gear box face to bottom of front bearing pocket in gear box D Slide rotor onto shaft and measure from back of rotor to back of front bearing Do calculations for shim thickness A B X C X Y Y D required backface clearance from Table 6 under Standard Clearances shim thickness Repeat measurements for second rotor
19. ch to tighten cover nuts to torque setting specified in this manual Cleaning Procedure for Circumferential Rotor and Rotary Lobe Shaft Threads 1 Remove rotor retainer devices from the shaft 2 Submerge and soak retainer part s for 5 minutes in clean out of place COP tank with 296 caustic solution 3 While wearing the appropriate personal protective equipment PPE scrub the part s vigorously with a sanitary bristle brush for two minutes while submerged 4 Procure a clean sanitary brush of a size that engages the shaft threads with enough interference to remove contaminants While wearing the appropriate PPE Scrub the shaft threads vigorously with the sanitary brush while consistently flushing with a 2 caustic solution using a spray bottle 5 Soak all above parts in acid sanitizer for 5 minutes and then scrub again 6 Flush shaft threads with acid sanitizer for 5 minutes using spray bottle and then scrub the hole again with the pipe brush for two minutes 7T Rinse well with clean water and blow dry blind tapped hole with clean air 8 Swab test to determine cleanliness 9 Should the swab test fail repeat steps 2 thru 8 above until swab test is passed PREVENTIVE MAINTENANCE Simple inspection during cleaning will often detect signs of a problem before it becomes serious so that it can be corrected at minimal cost and down time Remove rotors as described in Step 1 of Pump Head and Seal Disassembly Assembly
20. e that the pump is grounded earthed with the connection provided and that the motor Failure to follow the listed precautionary gear reducer base plate and other components measures may result in serious injury are adequately grounded Failure to ground or death are identified by the following equipment may result in an explosion causing symbol death or serious injury Provide a means to monitor all sensing equipment Wright ATEX pumps are sold to be coupled with Failure to do so may cause unacceptable build a motor and usually be mounted on a base up of temperature or pressure which could result plate The motor other electrical equipment in an explosion causing death or serious injury gear reducers couplings guards and base plates must comply with ATEX requirements The motor gear reducer sensors and other associated electrical equipment must bear CE NEM and ATEX marking Couplings must be ATEX meet EC Directives marked and be accompanied by a Certificate of Conformity Failure to comply will void ATEX Certification and may result in an explosion Conduct all maintenance activities as detailed in causing death or serious injury the pump manual Failure to do so may cause pump failure could result in an explosion causing death or serious injury Install ATEX conforming guards as required to ATEX EQUIPMENT GROUPS Equipment groups Annex of the EC Directive 94 9 EC Group Group Il mines mine gas and dust o
21. ed Air leaks because of bad seals and or pipe Replace seals pressurize lines to check for connections leakage Relief valve not adjusted Adjust clean Open or held Flow diverted in system Check system valves and controls Hot clearance rotors used with cold or low Replace with standard rotors viscosity fluid Worn pump Increase speed recondition pump Pressure too high Modify system SECTION IOM TRA 10 ISSUE B PAGE 16 OF 20 TROUBLESHOOTING GUIDE cont d Noisy operation Cavitation due to high fluid Viscosity high vapor Reduce speed and or temperature modify system pressure or high temperature Inlet Pressure Available less than Inlet Press Modify System Required Air or gas in system due to system leaks Fix leaks Dissolved gas or naturally aerated products Reduce discharge pressure reduce speed and or temperature modify system Rotor to body contact Check back face and rotor to cover clearances and reshim as necessary Check for distortion of pump due to Installation of piping Reassemble pump and or re install piping Pressure higher than pump is Rated Reduce pressure Worn bearings or gears Replace as needed ensure regular lubrication Rotor to rotor contact noise due to twisted shaft Rebuild with new parts as needed sheared keys loose or mistimed gears worn splines Relief valve chattering Readjust repair or replace valve Drain train components Lubricate repair or rep
22. es Circumferential Piston IN WARNING The Net Positive Suction Head available 93 C 200 F TABLE 1 105 C 221 F 150 C 302 F Refer to WFT NPSHa from the system must always exceed the Net Positive Suction Head NPSHr by the pump required Observing the following general guidelines should ensure the best possible suction condition is created e Suction piping is at least the same diameter as the pump connections e The length of suction piping is kept to the absolute minimum e The minimum number of bends tees and pipework restrictions are used e Calculations to determine system NPSHa are carried out for the worst condition see below Should advice on pump or system NPSH characteristics be required contact the factory or their authorised distributor SECTION IOM TRA 10 ISSUE B PAGE 3 OF 20 INSTALLATION POSITIONS 4 Way Mounting For Conditions With Positive Suction Head For Suction Lift Or Vacuum Conditions Suction Head Atmospheric Pressure NPSH Available gt NPSH Available Horizontal ports bottom shaft position Horizontal ports top shaft position Suction Lift Or Vacuum Suction Line Friction Loss Suction Line Friction Loss Vertical ports left hand or right hand shaft position Vapour Pressure 10 0 Meters 32 8 Feet Water Column Vapour Pressure
23. ide film on the stainless therefore don t leave tools rubber mats etc in contact with stainless pump components 4 Utilize conditioned water where necessary to prevent foreign matter in the water from causing pitting or deposits that may prevent thorough cleaning 5 Immediately rinse equipment with warm water after use then clean as soon as possible Pitting may occur under particles of product left on pump surfaces 6 Use only recommended cleaning compounds from reputable suppliers and use only as specified by the manufacturer to prevent pitting stress cracking and surface discoloring 7 Scratches and metal particles embedded into stainless may cause corrosion over time Use only non metallic brushes and pads for hand cleaning 8 Chemical bactericides must be used at the lowest permissible concentration temperature and time Follow directions supplied by the manufacturer and local health authority Chlorine and other halogens may destroy the protective film while increased temperatures increase chemical activity which accelerates corrosion Inspect joints for properly sealed gaskets in joints crevices caused by improperly seated gaskets will promote crevice corrosion particularly in the presence of chlorine 9 Checkall equipmentfor evidence of pitting and discolored surfaces and for stress cracks Remove deposits and color from surfaces immediately using mild scouring powder and detergents Rinse thoroughly and air dry
24. ing Size in 3 816 1213 12 13 s Mounting i 12 13 12 13 12 43 Flange Torque N m 27 1 29 8 583 637 58 3 63 7 sce Flange Torque 58 3 63 7 58 3 63 7 58 3 63 7 Torque ibt 20 22 43 47 43 47 Torque Ibf ft 43 47 43 47 43 47 Qty Pump 4 4 4 Qty Pump 4 4 4 Socket Size in 48 32 8 32 8 32 Socket Size in 4932 8 32 8 32 Head Cap Head Cap Roi Torque N m 13 56 27 12 13 56 27 12 13 56 27 12 e Torque N m 13 56 27 12 13 56 27 12 13 56 27 12 Torque Ibf ft 10 20 10 20 10 20 Torque Ibf ft 10 20 10 20 10 20 Socket Head Cap Screw SECTION IOM TRA 10 ISSUE B PAGE 14 OF 20 CARE OF STAINLESS STEEL Stainless steel components used in products made by Wright Flow Technologies are produced using methods that preserve the corrosion resistant property of stainless steel The following precautions must be observed in use and cleaning to maintain corrosion resistance 1 Hydrochloric acid even with added inhibitors is NOT recommended for cleaning due to its corrosion producing properties 2 Pitting can occur when stray electrical currents contact wet stainless Check electrical devices on a regular basis for improper grounding damaged insulation or other defects that might cause stray currents 3 Objects in contact with stainless steel prevent the air from drying and reforming the protective ox
25. lace as needed Pump overheats stalls Higher viscous losses than anticipated If pump is within rating increase drive size draws excessive current trips breaker blows fuses Pressure higher than anticipated Reduce speed increase line size Fluid colder than anticipated high viscosity Heat fluid insulate and heat lines increase running clearances Fluid sets up during shutdown Insulate or heat lines install recirculating or soft start drive Flush with different fluid Fluids such as chocolate latex build up on internal Increase running clearances pump surfaces Pump service life not as Misalignment of drive and piping excessive pump Align piping and drive long as expected overhang Abrasive fluid Use larger pump at slower speed Bearings and gears lack lubrication Establish and follow lubrication schedule Speeds and pressures higher than pump is rated Reduce speed and pressures by system modification Pump corrodes Upgrade material used in pump SECTION IOM TRA 10 ISSUE B PAGE 17 OF 20 FOR ATEX PUMPS ONLY INCORRECT INSTALLATION OPERATION OR MAINTENANCE OF EQUIPMENT MAY CAUSE SEVERE PERSONAL INJURY OR DEATH AND OR EQUIPMENT DAMAGE AND MAY INVALIDATE THE WARRANTY This information must be read fully before beginning installation OPERATION or maintenance and must be kept with the pump SUITABLY TRAINED OR QUALIFIED PERSONS MUST UNDERTAKE ALL INSTALLATION AND MAINTENANCE only DANGER Insur
26. lubricant to new O rings and install on outer diameter of seal Insert seal assembly into body engaging notch with pin and pushing from opposite side over and in to seat O ring Apply lubricant to seal faces PUMP HEAD ASSEMBLY Slide body over shafts and studs taking care not to damage seal parts Press body firmly against gear case engaging dowels Install Allen Head body hold down bolts where furnished Assemble rotor to its shaft engaging the large spline tooth with large groove in rotor Rotate shaft until rotor wings are on a vertical centerline then install second rotor Secure with rotor retaining nuts tighten first nut on shaft by striking nut wrench with soft faced hammer then tighten second nut against first in the same way to jam nuts together Place cover O ring in groove push cover over studs making sure O ring remains in groove Insert a plastic or other soft dowel to clock rotor against pump body then tighten each nut by striking with a soft hammer Sterilize pump in accordance with accepted sterilization procedures Make sure no residual solution remains in the pump GEAR BOX DISASSEMBLY AND ASSEMBLY WARNING A To avoid serious injury or death do not install or service pump unless power is off and locked out A WARNING Relieve system pressure before removing cover or port connections GEAR BOX DISASSEMBLY 1 Remove pump head as described in step
27. manufactured up to four times depending on use and wear Remanufactured pumps are backed with the same warranty as a new pump Factory remanufacturing involves body and cover remachining new rotors and replacement of all worn parts such as shafts bearings gears etc To facilitate the remanufacturing process contact the factory to discuss the particular pump s to be remanufactured and obtain return goods authorization It may be possible to supply a reconditioned pump in advance of returning a pump to the factory although not all sizes may be available at any one time Be sure to clean and flush pump before returning it to the factory SECTION IOM TRA 10 ISSUE B PAGE 9 OF 20 PUMP HEAD AND SEAL ASSEMBLY AND DISASSEMBLY Before disassembly lock out power and release pressure from pump IN WARNING To avoid serious injury or death do not install or service pump unless power is off and locked out AN WARNING Relieve system pressure before removing cover or port connections CAUTION Handle all parts with care to avoid nicks and scratches which may affect pump operation 1 PUMP HEAD DISASSEMBLY Remove wing nuts using a soft hammer Remove cover If necessary tap cover with soft hammer to loosen Remove and discard cover O ring Use wrench supplied to remove rotor nuts Nuts remove in a counter clock wise direction Hit wrench sharply with soft hammer to loosen nuts Orient rotors perpendicular to each
28. mblies 10 Install grease seals in bearing retainers Coat seal lips with grease conforming to ISO 220 NLGI grade 2 or NSF USDA H1 Coat retainer flanges with silicone sealant Install retainers See Figure 17 SILICONE SEALANT SEAL A COAT WITH GREASE AS STATED IN GEAR BOX ASSEMBLY STEP 10 FIGURE 17 11 Install rear oil seals and rear gear spacers 12 Please keys into shaft key slots Slide gear with single punch mark onto drive shaft Slide gear with two punch marks onto short shaft with punch marks aligned on each side of single mark of drive gear 13 Install lock washers and lock nuts onto shafts Tighten locknut with spanner wrench Bend locking tab on lockwasher to secure 14 Press in gear case cover oil seal with lip facing outward 15 Place silicone sealant on back of gear case and mount cover assembly on gear case Secure cover 16 Fill gear case with oil as specified in Table 3 Assemble pump head as described in step 4 of Pump Head and Seal Disassembly Assembly STANDARD CLEARANCES TRA10 Back PUMP Face Radial SERIES 0060 0 002 in 0 003 in 0 005 in 0 051 mm 0 076 mm 0 127 mm 0 002 in 0 003 in 0 005 in 0150 0 051 mm 0 076 mm 0 127 mm 0 002 in 0 003 in 0 005 in 0180 0240 0 051 mm 0 076 mm 0 127 mm 0 002 in 0 003 in 0 005 in 0300 0340 0 051 mm 0 076 mm 0 127 mm 0 003 in 0 005 in 0 007 in 0450 0 076 mm 0 127 mm 0 178 mm 0 003 in 0 005 in 0 007 in 0600 0640 0 076 mm 0
29. nd changes in viscosity Pumps and drives ordered from the factory on a common base plate have been supplied with a flexible coupling and aligned before shipping This alignment should be rechecked after the pump is installed and piping is complete To check units coupling alignment begin with checking the angular alignment by measuring the gap between the couplings at four points Shim the drive assembly accordingly so the gaps are an equal distance at all points Figure 3 Next check the horizontal and vertical alignment of the couplings using a straight edge Place the straight edge along the coupling to ensure that both sides are concentric with each other Figure 4 qu AERE T 2 Jn BEL L3 LL 5 A l t i Ez to nj FIGURE 3 FIGURE 4 9 Turn pump shaft manually to make sure that the pump turns freely A WARNING Do not put fingers in ports or near rotating members 10 Jog motor and observe motor coupling to make sure pump will turn in the right direction See Figure 5 Bottom Shaft Drive FIGURE 5 N WARNING Stay clear of motor shaft and coupling when jogging motor 11 Lock out power to pump 12 Connect coupling halves and install coupling guard
30. ning chemicals are used remove the rotors prior to CIP cleaning and clean them separately by hand in a mild detergent If you have any questions regarding other aggressive chemicals please contact Wright Flow Technologies Application Engineering for assistance ELASTOMER SEAL REPLACEMENT FOLLOWING PASSIVATION Passivation chemicals can damage product contact areas of Wright Flow Technologies equipment Elastomers rubber components are most likely to be affected Always inspect all elastomer seals after passivation is completed Replace any seals showing signs of chemical attack Indications bay include swelling cracks loss of elasticity or any other noticeable changes when compared with new components SECTION IOM TRA 10 ISSUE B PAGE 15 OF 20 TROUBLESHOOTING GUIDE A properly sized and installed pump should provide trouble may occur over time The following information may help in free operation however problems in pumping systems _ identifying and resolving such problems PROBLEM POSSIBLE CAUSE S SOLUTION S Pump not turning Drive motor not running Check circuit breakers fuses Keys sheared or missing Replace keys Drive belts etc slipping or broken Adjust or replace Shaft or gears sheared Replace No flow pump turning Rotation in wrong direction No flow pump not priming Inlet valve closed Open valve Inlet line clogged Clean line and filters Air leaks because of bad seals and or pipe Replace seal
31. nnections Misalignment and or excess loads will cause severe pump damage Be sure that pump rotation is correct for the desired direction of flow DO NOT INSTALL THE PUMP INTO A SYSTEM WHERE IT WILL RUN DRY LE WITHOUT A SUPPLY OF PUMPED MEDIA PAGE 2 OF 20 itself are marked by this symbol Pressure gauges sensors are recommended next to the pump suction and discharge connections to monitor pressures Caution must be taken when lifting the pump Suitable lifting devices should be used as appropriate Lifting eyes installed on the pump must only be used to lift the pump not pump with drive and or baseplate If pump is baseplate mounted the base plate must be used for all lifting purposes If slings are used for lifting they must be safely and securely attached For weights of bare shaft pumps refer to catalog DO NOT attempt any maintenance or disassembly of the pump or pump unit without first ensuring that The pump is fully isolated from the power source electric hydraulic pneumatic The pumping chamber relief valve and any shaft seal support system are depressurized and purged Any temperature control devices jackets heat tracing etc are fully isolated that they are depressurized and purged and components are allowed to reach a safe handling temperature DO NOT attempt to dismantle a pressure relief valve which has not had the spring pressure relieved or is mounted on a pump that is operating Se
32. nsfer the energy from the drive shaft to the driven shaft synchronising the rotors such that they rotate without contact with each other As the rotors pass the inlet port see Figure 2 the cavity generated increases creating a pressure decrease which induces the pumped medium to flow into the rotorcase FIGURE 2 The pumped medium is carried around the rotorcase by the rotors to the discharge side of the pump here the cavity decreases and the pumped medium is discharged from the rotorcase TRA10 Range Operating Parameters The maximum pressure and speed operating parameters are given in Pump Performance Tables 2 amp 2A In practice these may be limited due to the nature of the product to be pumped and or design of the system in which the pump is to be installed Consult Wright Flow Technologies or your Wright Flow Technologies distributor for assistance The operating temperature limit of the pump is determined by the rotor clearance For the circumferential piston pumps CPP e TRA10 Series four rotor clearance bands a Standard b FF Front Face c Hot d Extra The pump should not be subjected to sudden temperature changes to avoid the risk of damage from sudden expansion contraction of components Care should be taken when selecting pumps for handling liquids containing abrasive particles as these may cause wear of pump head components Operating Temperature Limit C F TRA10 Seri
33. other then remove rotor with both wings exposed first If necessary use gear puller or hardwood lever to remove rotor from spline See Figure 9 APPLY GEAR PULLER HERE FIGURE 9 If fitted with Allen head hold down bolts in the body remove them then remove pump body by pulling it straight off studs Note that the pump body must be assembled to the same bearing housing from which it was removed 2 SEAL DISASSEMBLY For 3200 model pump consult factory Single O Ring See Figure 10 Remove and discard body and shaft O rings Use O ring removal tool furnished with pump SECTION IOM TRA 10 ISSUE B PAGE 10 OF 20 SIN SI Double O Ring See Figure 11 Remove O ring carriers remove and discard rings from both carriers and body Use O ring removal tool furnished Single Mechanical Seal See Figure 12 Inner Seal Remove seal from body If chipped scratched or evidence of cracks discard seal Make sure shoulder is clean remove burrs if present remove and discard O rings Seal Seat Remove seal seat from shaft If chipped scratched or evidence of cracks discard seal Make sure shoulder is clean remove burrs if present remove and discard O rings Double Mechanical Seal See Figure 13 Inner Seal Remove seal from body If chipped scratched or evidence of cracks discard seal Make sure shoulder is clean remove burrs if present remove and discard
34. over clearances Failure to do so will damage the pump INSTALLATION Installation should follow good practice to provide the best performance and must meet local code requirements All system components must be correctly sized to provide satisfactory operation of your Wright Flow Technologies product Consideration must be given to the following in order to achieve proper installation 1 SECTION IOM TRA 10 ISSUE B Pumps of this type are usually mounted on a base plate common with the drive unit Bases may be permanently mounted be self leveling with vibration isolation pads have adjustable legs or be portable Bases should be level during pump operation Provide power as required by the motor and controls as needed for system operation A WARNING Electrical connections must be made by a registered electrician in accordance with local codes and standards A WARNING To avoid serious injury or death do not install or service pump unless power is off and locked out Piping should be supported independently of the pump to prevent mis alignment of pump parts that will cause excessive wear to rotors bearings and shafts Use of thermal expansion flexible joints will also minimize forces exerted on the pump Inlet and outlet valves permit servicing of the pump without emptying the entire system Inlet piping must not slope toward the pump in such a way as to cause formation of an air pocket ahead of the pum
35. p An inlet valve will serve to keep the inlet line full This is particularly important with low viscosity fluids and with frequent starts and stops With low absolute inlet pressure a check on the outlet side of the pump prevents backflow and minimizes start up differential pressure PAGE 6 OF 20 ATTENTION CAUTION Operation of the pump with inlet and or outlet valves in the closed position can cause damage to the pump Welding of fittings is not recommended since warpage can occur which may effect pump operation and performance Overpressure protection must be provided for this pump A pump mounted pressure relief valve a torque limiting device on the drive or a rupture disc in the discharge piping are examples If pump rotation is to be reversed pressure protection must be provided on both sides of the pump AN WARNING Do not operate pump unless overpressure protection is installed in discharge piping Inlet side strainers or traps can be used to prevent foreign objects from entering and damaging the pump Selection should be made based on viscosity to prevent clogging and restricting the inlet thus causing cavitation and reduction of flow from the pump Installation of pressure and or vacuum gauges at inlet and or outlet provide a convenient way to assess pump operation Such gauges can indicate if pressure is normal or not show changes in pump or system conditions and provide indications of flow a
36. pump is clean and free of foreign objects or materials before rotating the shaft If the pump is damaged in transit file a claim with the carrier right away The carrier has a Bill of Lading showing that the shipment was received from us in good condition Returns when necessary to return a product under warranty or for any other reason first contact Wright Flow Technologies to receive a Return Goods Authorization number to facilitate getting the product back to you as soon as possible Information contained in this manual is subject to change without notice and does not represent a commitment from IDEX Corporation Wright Flow Technologies Inc e A Unit of IDEX Corporation 406 State Street e Cedar Falls lowa 50613 U S A CORPORATION INSTRUCTION AND MAINTENANCE MANUAL SANITARY POSITIVE DISPLACEMENT PUMPS IOM TRA 10 PAGE 1 OF 20 ISSUE B SECTION TRA 10 SERIES Replacement Labels WARNING The following labels are installed on your equipment If these labels are removed or become unreadable contact your local distributor and they will be supplied at no charge Application Instructions Apply to a clean dry surface Remove the backing from the label place it in proper position protect it with a cover sheet and burnish it A soft rubber roller also may be used to press the label into place Apply all labels to be readable from the front of the pump Important 1 Pump and drive are factory aligned
37. re that sufficient Backplate NPSH to prevent cavitation Service plan User must ensure temperature limits Excess temperature Do not overfill gearboxes with lubricant Pump external surfaces Electrostatic charging Provide a ground contact for pump Service plan Check selection of elastomers Housing Pump liquid leakage are suitable for application Cover O ring Build up of explosive gas Ensure cover retaining nuts are tight Service plan Pump housing oe E Corrosion resistant materials Impeller Backplate Build up of explosive gas l Excess temperature Selection of seal system must Unintended be suitable for application Shaft seals mechanical contact Service as needed Leakage Always provide seal flush Build up of explosive gas when so equipped Ensure liquid is in pump chamber before testing Always provide Rotation direction test Excess temperature seal flush when so equipped Allow pump to run for minimum period a few seconds See Manual Excess Temperature t Provide over pressure protection Closed valve condition Excess Pressure See Manual Mechanical contact Shaft Random induced current Provide a ground contact for pump SECTION IOM TRA 10 ISSUE B PAGE 19 OF 20 INSTRUCTION AND SECTION IOM TRA 10 wright flow MAINTENANCE MANUAL ence scores TECHNOLOGIES SANITARY POSITIVE DISPLACEMENT PUMPS ISSUE B TRA 10 SERIES NOTES wright flow TECHNOLOGIES
38. rious personal injury or death and or pump damage may occur DO NOT loosen or undo the front cover any connections to the pump shaft seal housings temperature control devices or other components until sure that such action will not allow the unsafe escape of any pressurized media Pumps and or drives can produce sound power levels exceeding 85 dB A under certain operating conditions When necessary personal protection against noise must be taken Avoid any contact with hot parts of pumps and or drives which may cause injury Certain operating conditions temperature control devices jackets heat tracing etc bad installation or poor maintenance can all promote high temperatures on pumps and or drives When cleaning either manually or by CIP method the operator must ensure that a suitable procedure is used in accordance with the system requirements During a CIP cleaning cycle a pump differential pressure of between 30 and 45 psi is recommended to ensure suitable velocities are reached within the pump head The exterior of the pump should be cleaned periodically TOOLS REQUIRED FOR DISASSEMBLY ASSEMBLY O ring removal tool supplied with pump Rotor nut wrench supplied with pump Soft faced hammer Suitable gear puller Allen wrenches Hydraulic press Suitable V blocks Measuring tools po eONnNeog PwRN Spanner wrenches for gear end lock nuts available from Wright Flow Technologies WT0150SPWR
39. s pressurize lines to check for connections leakage Speed of pump too slow Increase speed fill inlet lines install foot valve Liquid drains or siphons Install foot or check valves Air lock due to fluids that may vaporize or allow gas Install air bleed in lines near pump to come out of solution Excess clearance between rotors and body and Increase pump speed install foot valve have pump cover rebuilt Net inlet pressure too low Check Net Inlet Pressure Available at Pump and Net Inlet Pressure Required by Pump Calculate System and modify inlet system as needed With vacuum inlet system atmospheric blow back Install check valve in discharge line prevents pump from starting flow No flow Relief valve not properly adjusted or held open by Adjust or clear valve foreign material Fluid vaporization Filters valves inlet filters or lines clogged Clean starved Pump inlet Inlet line too small or too long too many valves or Make necessary changes fittings filter too small Net Inlet Pressure Available at Pump too low Increase level in source tank or pressurize tank Select larger pump with less inlet pressure required Viscosity of pump fluid higher than anticipated Reduce pump speed lower flow will result or modify system Temperature of fluid higher than anticipated Provide cooling reduce speed modify system to increase available inlet pressure Insufficient flow Speed too low Increase spe
40. s performing properly within several minutes If problems are detected see Troubleshooting Guide CLEANING AND MAINTENANCE Wright Flow Technologies products are designed for easy removal of the cover rotors and seals for cleaning when necessary See instructions under Pump Head and Seal Disassembly Assembly Cleaning in place is not recommended AN WARNING To avoid serious injury or death do not install or service pump unless power is off and locked out A WARNING Relieve system pressure before removing cover or port connections CAUTION Handle all parts with care to avoid nicks and scratches which may affect pump operation Cleaning Clean per established procedures Be aware of the cleaning solution used see MSDS and of cleaning solution temperature Make sure no residual cleaning solution stays in the pump Note that acidic cleaners have a high metal corrosion rate so pump parts should be exposed to these cleaners no longer than necessary and be completely rinsed SECTION IOM TRA 10 ISSUE B PAGE 8 OF 20 Seal Replacement Procedure 1 Remove rotor case cover 2 Remove rotor retainers and ensure components are dry before servicing 3 With a penlight inspect shaft threads for contamination If Soiled refer to cleaning procedure below 4 Install rotor retainer and use a torque wrench to tighten torque setting specified in this manual 5 Install the rotor case cover and use a torque wren
41. suitable O ring lubricant to new O rings and insert them into the body carrier and shaft grooves O rings on shafts should be installed in the groove closest to the spline when using O ring seats Assemble carriers into body so carrier notch engages pin in body Assemble shaft sleeves against shaft shoulder If sleeve is slotted assemble with slot over drive pin in shaft If sleeve has prongs assemble with prongs on either side of drive pin Do not re use sleeves that are grooved or scratched Single Mechanical Seal See Figure 12 Seal Seat Apply a suitable O ring lubricant to new O rings and insert them into shaft grooves furthest from spline Install seal seats lining up groove on rear face with shaft drive pin Inner Seal Apply a suitable O ring lubricant to new O rings and insert them into body grooves Assemble wave spring on seal and install into body with notch engaging pin in body Lubricate seal faces Double Mechanical Seal See Figure 13 Seal Seat Apply a suitable O ring lubricant to new O ring and insert into shaft groove furthest from spline Install seal seat lining up groove on rear face with shaft drive pin Inner Seal Apply a suitable O ring lubricant to new O ring and insert into body groove Assemble wave spring on seal and install into body with notch engaging pin in body Outer Seal Apply a suitable O ring
42. ther explosive atmospheres gas dust Category M ae 1 2 MY 3 en us aici a aes Zone 0 Zone 20 Zone 1 Zone 21 Zone 2 Zone 22 for equipment providing for equipment providing for equipment providing a for equipment providing for equipment providing a a very high level a high level of very high level of protection a high level of protection normal level of protection of protection when protection when likely when used in areas where when used in areas where when used in areas where endangered by an to be endangered by an an explosive atmosphere is an explosive atmosphere is an explosive atmosphere is explosive atmosphere explosive atmosphere very likely to occur likely to occur less likely to occur ATEX TAG USED ON WRIGHT ATEX CERTIFIED PUMPS SECTION IOM TRA 10 ISSUE B PAGE 18 OF 20 FOR ATEX PUMPS ONLY RISK ASSESSMENT RELATING TO THE USE OF WRIGHT PUMPS IN POTENTIALLY EXPLOSIVE ATMOSPHERES Note For a product to be suitable for an application it must be fit for its designated purpose and also be suitable for the environment where it is installed Source Of Hazards Potential Hazards Frequency Of Hazards Recommended Measures i Ensure that pump is totally filled Unvented cavities Build up of explosive gas Consider mounting ports vertically Ensure that operating pressures are not exceeded Housing Rotors Unintended Impellers Front Cover mechanical contaci Ensu
43. to promote reformation of the protective oxide film ASTM A 494 ASTM A 494 is the standard rotor material for TRA10 CPP pumps This alloy was developed specifically for corrosion resistance and close operating clearance requirements of high performance rotary positive displacement pumps ASTM A 494 is a nickel based corrosion resistant non galling or seizing material The ASTM designation is A 494 Grade CY5SnBiM UNS N26055 and the material is listed in the 3 A Sanitary Standards as acceptable for product contact surfaces The above properties make ASTM A 494 the ideal material for Wright Flow Technologies CPP pumps The non galling rotors permit close operating clearances in the liquid end This provides low slip and minimum shear damage The rotors will not gall or seize if they come in contact with the body or cover during operation The corrosion resistance of ASTM A 494 is approximately equal to AISI 300 Series Stainless Steel However ASTM A 494 has limited resistance to certain aggressive chemicals that may be commonly used in contact with AISI 300 Series Stainless Steel Do not use ASTM A 494 in contact with nitric acid Nitric acid is commonly used to passivate new installations of stainless steel equipment Do not allow nitric acid based passivation chemicals to contact ASTM A 494 rotors Remove the rotors during passivation and use a separate pump to circulate the passivation chemicals Also if nitric acid based CIP clea
44. wright flow TECHNOLOGIES CONTENTS Introduction e Eaa e eee 1 General Information 1 Safety Information 2 Tools Required for Disassembly Assembly 3 Normal Operation 3 Installation ooa a a lll 6 Startup Checklist o a a a 8 Cleaning and Maintenance 8 Pump Head and Seal Disassembly Assembly 10 Gear Box Disassembly Assembly 11 Standard Clearances iss 13 Care of Stainless Steel 15 Troubleshooting Guide 16 ATEX Pump Only Information 18 Warranty 29 8 bea x 9 RR X X E 20 INTRODUCTION Thank you for purchasing this Wright Flow Technologies model To ensure the best possible service read and understand this manual prior to installation operation or maintaining this pump For questions regarding installation operation or maintenance contact your distributor or Wright Flow Technologies GENERAL INFORMATION Each Wright Flow Technologies product is shipped completely assembled and ready for use Normal maintenance as outlined in this manual will provide long trouble free service when the pumps is incorporated in a properly designed system Inspection at receipt ports are covered at the factory to prevent dirt and foreign objects from entering the pump head If port covers are damaged or missing remove the pump cover to ensure the
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