700-20 manual.2003 - Controls Warehouse
Contents
1. 3 E T 700 20 Rotary Flow Meter SERVICE MANUAL For 700 meters with serial numbers 700000 or higher TOTAL CONTROL SYSTEMS 2515 Charleston Place Fort Wayne IN 46808 Toll Free 800 348 4753 Tel 260 484 0382 Fax 260 484 9230 E mail sales tcsmeters com Website www tcsmeters com SPECIFICATIONS FOR MODEL 700 20 Flange Connection 2 NPT Flange Connection 1 1 2 NPT Flange Optional BSPT Slip Weld or ANSI flanges available upon request Flow Rate Up to 100 GPM 380 LPM Maximum Pressure 150 PSI 10 5 BAR Working Temperature 20 F to 160 F 28 9 C to 71 C METER TYPES SP Standard Petroleum Refined products Gasoline Fuel Oil Aviation Fuels Kerosene Lubricating Oils Vegetable Oils etc IP Industrial Products Refined products Solvents and Industrial Chemicals AF All Ferrous Refined products Solvents Industrial Chemicals and Agricultural Products SS Stainless Steel Refined products Solvents Industrial Chemicals Agricultural Products and Special Handling Liquids such as some acids MATERIAL OF CONSTRUCTION Bearing Timing Plates Gears Hardchrome SS SS Alloy 316 SS 316 SS Viton Type Housing Rotors Journals Bearings Seals Anodized Anodized Aluminum Aluminum Hardcoat Hardcoat Anodized Anodized Hardehrome SS SS less Si2. 702016 702016 19 Cover Rear 1 702550 702551 702552 20 Screw Round Head 10 702014 702014 702014 702014 21 Bearing Plate 2 702205 702215 702215 702215 22 O ring Cover 2 702001 702002 702002 702002 23 Housing 1 702110 702120 702125 24 Washer Flat 8 702018 702018 702018 702018 25 Cap Screw 8 702017 702017 702017 702017 26 Flange 2 702600 702600 702601 702602 27 O ring Flange 2 702012 702013 702013 28 Gear Blocking Rotor 1 702350 702350 702350 702350 29 Rotor Lock Nut 3 702010 702010 702010 702010 30 Gear Displacement Rotor 2 702451 702451 702451 702451 31 Rotor Key 3 702008 702008 702008 32 Rotor Displacement 2 702405 702410 702415 702415 33 Rotor Blocking 1 702305 702310 702315 702315 10 AIR ELIMINATOR AND STRAINER ASSEMBLY 740 20 rer AIR ELIMINATOR AND STRAINER ASSEMBLY 740 20 ITEM DESCRIPTION 740 20SP 740 20IP 740 20AF 740 2055 1 Cap Screw 12 740050 740050 740050 740050 2 Ring Washer 7400581 740051 3 Outlet Cover 2 740010 740010 740016 740018 4 Plate Seal 4 740005 740004 740004 740004 5 Valve Plate 2 740038 740006 740006 740006 6 O ring 740037 740037 7 Air Eliminator Housing 1 740020 740020 740022 740024 8 Screw 6 740030 740030 740030 7400
3. 9 10 11 12 13 14 15 16 17 Check for repeatability A Runa fast high gallons per minute test in your prover and record how much the meter is over or under registering Do NOT change the meter s calibration B Run a slow low gallons per minute test and again record how much the meter is over or under registration If the results from the fast and the slow test are the same or close to the same the meter can be successfully calibrated If the test results differ beyond the rated tolerance of the meter then repairs are necessary before the meter can be calibrated A valve or nozzle must be at the end of the delivery hose at the prover Turn on the pump and purge the system of air Leave the pump on Shut off the valve at the end of the delivery hose and let the system pressurize Wet the prover and empty it letting it drip for 30 seconds Reset the register on the meter to 0 Fill the prover to the line marked 0 Calculate the percentage increase or decrease of registration required For example if a 50 gallon test prover indicates exactly 50 gallons have been run through the meter against a meter registration of 49 7 gallons the percentage increase of registration would be 0 6 3 10 s in 50 gallons is 0 6 If meter registration is less than the test prover measured volume an increase adjustment is required If meter registration is greater than the test prover measured volume a decrease adjustment
4. 700 20 meter can operate up to 100 GPM 380 LPM The flow rate of the system is dependent upon the system s pump capabilities and the plumbing configuration and the product to be measured Higher flow rates can be achieved with products that have low viscosities and high lubricity i e gasoline diesel fuel aviation fuels Operating Pressure The 700 20 meter can operate at pressures up to 150 PSI 10 5 BAR Compatibility Products with suspended solids in them will score the meter body and rotors due to the tight clearances within the meter s measuring chamber The liquid to be metered must also be compatible with the meter Contact factory on receiving the Chemical Compatibility Chart for more information Note TCS recommends that the 700 20 meter should have limited use on water applications Water has no lubricity and will drastically shorten the meter s service life It is recommended that if the meter is to be used on water it should be derated about 40 to 50 percent of flow and NOT on continuous duty applications Operating Temperature The temperature range of the product to be metered must be within the meter s range The 700 20 meter can operate between 20 F and 160 F C20 F to 160 F 28 9 C to 71 C Higher working temperatures can be achieved at reduced pressures Consult factory for more information Registration The 700 20 meter uses a Veeder Root mechanical 5 wheel resetable register in 1 10 U S gallons with a
5. For additional assistance contact Total Control Systems Service Department at 1 800 348 4753 S KEY FEATURES OF 700 METER TYPICAL ACCURACY CURVE Z 03 0 2 lt 7 Gasoline gt Fuel Oil E 0 1 0 2 5 0 3 0 10 20 30 40 50 60 70 80 90 100 PERCENT OF FLOW RATE The 700 meter s accuracy percent of error over or under the zero error level remains within design parameters 0 2 over its 10 to 100 GPM flow range This exceeds the maintenance requirements for accurate custody transfer of product as specified in the National Institute of Standards and Technology NIST Handbook 44 PRESSURE DROP CURVE 32 SSU SOLVENT 3 2 5 M 2 n 1 5 a 1 0 5 0 0 10 20 30 40 50 60 70 80 90 100 PERCENT OF FLOW RATE The 700 meter is mechanically capable of accurately metering products from 10 to 100 GPM Comparing lowest and highest flow rates results in a 10 1 turn down ratio for the 700 meter The nameplate on the 700 meter states the flow range as 20 100 GPM This matches the flow range across which the meter was tested while earning a Certificate of Conformance from the National Type Evaluation Program NTEP It should be noted that as viscosity increases maximum flow rate my decrease Viscosity is a measure of the flowability of a product DIMENSIONS 700 20 AIR ELIMINATOR INLET 4 63 METER HYDRA
6. is required Remove the seal and seal wire Remove the front cover plate Loosen the screw on the clamping ring The adjuster barrel will now be free to rotate Each small hash mark corresponds to 0 02 adjustment Each of the larger numbers on the rotating barrel corresponds to 0 1 The large numbers engraved into the adjuster body correspond to 1 The entire range of adjustment is 5 with the meter being set at the factory very close to the middle of this range To increase the registered volume rotate the adjuster barrel to the left by the percentage increase desired It is recommended that the barrel be rotated 0 02 more than the desired amount and then backed down to the desired figure This accounts for any slack present in the adjuster mechanism In the example above the barrel would be rotated 16 tick marks on the barrel 15 tick marks x 0 02 0 3 3 10 s plus the one tick mark for slack With the slack removed the barrel would then be rotated one tick mark back to the right to achieve the final adjustment To decrease the registered volume the adjuster barrel is rotated to the right Tighten the screw and clamping ring Run another test and adjust if necessary When calibration is achieved ensure that the screw and clamping ring are tight then replace the cover plate MEIER TROUBLE 5 PROBLEM Leaking packing gland and or housing Two common causes of packing gland leakage are thermal expansion and hydraul
7. 30 9 Split Lock Washer 2 740017 740017 740017 740017 10 _ Retaining Clip 740012 740012 11 Reed Valve 2 740007 740007 740007 740007 12 Float Assembly 1 740013 740013 740013 740013 13 Diffuser and Shaft Assembly 1 740035 740035 740035 740035 14 Top Seal O ring 740019 740019 15 Strainer Housing 1 742020 742020 742022 742023 16 Ring Washer 8 702018 702018 702018 702018 17 Screw 8 701017 701017 701017 701017 18 Basket Cover 742052 742053 19 Seal Ring 1 742003 742004 742004 742004 20 _ Strainer Basket 1 742010 742005 742005 742005 21 Strainer Cover Optional 1 740041 740041 740042 740042 SP strainers are standard with 40 mesh screens other sizes are available upon request AF amp SS strainers are standard with 0 050 perforated screens other sizes are available upon request HYDRAULIC VALVE ASSEMBLY 750 20 13 HYDRAULIC VALVE ASSEMBLY 750 20 ITEM DESCRIPTION 750 20SP 750 20IP 750 20AF 750 20SS 1 Linkage Swivel Block 1 1 128140 1 128140 1 128140 1 128140 2 Linkage Washer 65034 3 Linkage Retaining Ring 1 6 052482 6 052482 6 052482 6 052482 4 Linkage Spacer 1 130852 1 130852 1 130852 1 130852 5 Linkage Bracket 1 226102 6 Linkage Screw 2 65005 65005 65005 65005 7 Linkage Arm 1 752001 752001 752001 752001 8 Linkage Lock Nut
8. 750001 750001 750001 750001 9 Linkage Sleeve 2 750002 750002 750002 750002 10 Linkage Spherical Pivot 1 750003 750003 750003 750003 11 Linkage Lock Nut 65008 65008 65008 65008 12 Linkage Assembly Kit 752001KT 13 Roll Pin 1 752007 752007 752007 752007 14 Bushing 1 752006 752006 752006 752006 15 Valve Shaft 752008 752008 752008 752008 16 Screw 8 701017 701017 701017 701017 17 Washer 8 702018 702018 702018 702018 18 Valve Cap 752015 752015 752017 752018 20 O ring 1 752011 752012 752012 752012 21 O ring Retainer 752013 752013 752013 22 Internal Spring 752019 23 External Spring 1 752014 752014 752014 752014 24 Piston 1 752020 752020 752022 752022 25 Washer 752023 752023 752023 752023 27 Valve Body 1 752040 752040 752042 752043 28 Operating Lever 752010 752010 752010 752010 29 Linkage E ring 750004 30 Roll Pin 1 752004 752004 752004 752004 31 Rol Pin 2 752005 752005 752005 752005 32 Upper Seal 752035 752036 752036 752036 33 5 1 752033 752034 752034 752034 34 Piston Guide 1 752030 752031 752032 752032 35 Elbow Gasket 752029 752029 752029 752029 14 700 205 2 01 01 03 WARRANTY New 700 rotary meters equipment or components manufactured by Total Control Systems a division of Murray Equipment Inc TCS with which this warranty is enclosed are warranted by TCS to the original purchaser only for a period of TWELVE 12 months from installation or EIGHTEEN 18 months from the
9. ULIC VALVE 14 31 5 31 OUTLET REG PRINTER REGISTER PRESET 16 o 2 75 Measurements are in Inches meso 5 50 80 547 2 PLACES MOUNTING HOLES 2 75 METER ASSEMBLY 700 20 METER ASSEMBLY 700 20 ITEM DESCRIPTION QTY 700 20SP 700 20IP 700 20AF 700 2058 1 Screw Round Head 6 1 128279 1 128279 1 128279 1 128279 2 Adjuster Assembly 1 700100 700100 700100 700100 3 Drive Shaft 1 700019 700019 700019 4 E Ring 1 700016 700016 700016 700016 5 Face Gear 1 700018 700018 700018 700018 6 Bushing 2 700020 700020 700020 700020 7 Adjuster Cover Plate 1 700017 700017 700017 8 Seal Wire 1 1 118849 1 118849 1 118849 1 118849 9 Screw Drilled Head 2 700042 700042 700042 700042 10 Drive Shaft Retainer 1 700022 700022 700022 700022 11 Head Mount Screw 4 700040 700040 700040 12 Register Support 1 700200 700200 700200 700200 13 Packing Retaining Plate 1 700015 700015 700015 700015 14 Packing Capsule Assembly 2 1 1 700150 700155 700155 700155 15 O ring Packing 1 700009 700010 700010 16 Plug 3 8 2 700024 700024 700024 700024 17 Cover Front 1 702500 702500 702501 702502 18 Screw 20 702016 702016
10. date of shipment to be free under normal use and service from defects in material and workmanship Defects occurring within the stated warranty period TCS will repair or replace at TCS s option provided that part or parts are returned to TCS transportation changes prepaid and TCS s examination discloses the parts or workmanship to have been defective upon delivery to the purchaser EXCLUSIONS This warranty does not cover any parts or equipment not manufactured by TCS or related companies This warranty does not extend to any equipment that has been altered in any way subjected to misuse negligence accident or if operated in any manner other than in accordance with TCS s operating instructions or have been operated under conditions more severe than or otherwise exceeding those set forth in the specifications General maintenance calibration clean up and normal wear is excluded from this limited warranty CLAIM PROCEDURES In order to obtain performance by TCS of its obligations under this warranty the original purchaser must obtain a Return Goods Authorization RGA number from TCS s customer service department within 30 days of discovery of a purported breach of warranty but not later than the expiration of the warranty period Once authorization is received return the defective meter piece of equipment or component covered by this warranty with transportation charges prepaid to TCS at the address shown below together with a w
11. e pin or key where required Ifall meter parts are moving then problem is in register C Remove register from meter If all meter parts are moving but output shaft of adjuster assembly is not adjuster is worn and must be replaced D Iftotalizer numerals small numbers on register are recording but the big numerals are not moving register needs repair PROBLEM Product flows through meter but register does not record correctly A Adjuster assembly not properly calibrated See METER CALIBRATION on page 5 for more instructions B The factory installed gear train may have incorrect gearing ratio C Check register for defects PROBLEM No flow through meter A Faulty non functioning pump B Foreign matter within the system meter or components C Meter has a broken rotor or rotor shaft D Excessive wear on timing gears or bearings E Meter frozen due to build up of chemical salts inside metering chamber sufficient to stop rotation or rotors F Valve not open or not functioning PROBLEM Meter runs too slow A There is a flow restriction within the system 1 e tees elbows valves etc B Foreign matter in system meter or components C Product viscosity is different or has changed from what was originally known D Meter gears or rotors partially salted enough to slow up rotation of parts E Valve internal mechanism faulty Valve does not open fully or the linkage is not properly adjusted
12. ess 02 amp Teflon Aluminum Aluminum Kalrez amp Cast Iron 316 SS Hardchrome SS SS Alloy 316 SS 316 SS Teflon 316 SS 316SS Hardchrome SS SS Alloy 31655 31685 a Ceramic Bearings are available upon request Viton is a registered trademark E I Dupont de Nemours amp Co Teflon and Kalrez are registered trademarks of Dupont Dow Elastomers L L C SES 700 ROTARY METER OPERATION The TCS Model 700 series flow meter is a simple and efficient design The meter consists of a single fluid chamber that contains a single blocking rotor and two displacement rotors whose rotation is synchronized with mating gears As Is the fluid enters the fluid chamber blocking rotor is forced to rotate displacement rotors also rotating in conjunction with the blocking rotor help direct the fluid flow through the chamber and to the outlet The linear flow of the fluid is thus translated into rotary motion in the meter The output of the meter is picked up from the rotation of the blocking rotor and transmitted to a register or pulse transmitter The rotors in the meter are designed to operate at close tolerances to one another and the wall of the fluid chamber There are slight gaps between the rotors and the chamber wall Because of this it is important that the meter be properly applied for the flow rate and operating pressure of the system Because the fluid flow through the meter is
13. ic shock If two valves in a piping system on either side of the meter are closed at one time and if the temperature rises as little as 1 F in the system 1t could result in a rise in pressure within the system that would exceed the working pressure rating of the meter To avoid this hazard caused by thermal expansion a pressure relief valve of some kind must be installed in the system Hydraulic shock occurs when a large volume mass of liquid is moving through a pipe line at some flow rate and a valve is suddenly closed When the flow is so stopped the entire mass of the liquid in the piping system acts as a battering ram causing a shock effect within the meter The greater the mass length of line and or velocity the greater the hydraulic shock Since the valve is usually located at the meter outlet the meter housing packing gland and the meter internal members receive the full impact of such hydraulic shock To prevent this hazard a slow closing two stage valve should be used with the meter On those systems where mass length of line etc are of such magnitude as to preclude the elimination of hydraulic shock with the use of a two stage slow closing valve an impact absorbing air cushioning device should be used O Ring has been damaged or cover bolts have not been tightened enough PROBLEM Product flows through meter but register does not operate A Gear train motion interrupted by non functioning gear due to broken pin or key Replac
14. n 8 digit norrresetable totalizer Litres ounces pounds or nearly any other unit of measure can be accommodated upon request Other electronic registers are available upon request Weights amp Measures Approved Device Some liquids may require a measuring devise to have a Type Approval from the National Institute of Standards and Technology NIST Office of Weights amp Measures subsidiary National Type Evaluation Program NTEP Handbook 44 requirements This Approval declares that the device has been performance tested and certified on specific liquid product class within various system factors by NIST and is thereby qualified to sell a liquid product off the measuring device The Total Control Systems 700 series flow meter currently has NTEP number 99 097 for the resale of Refined Products which include the likes of Gasoline Diesel Fuel Aviation Fuels Lube Oils Kerosene Mineral Spirits Motor Oils Vegetable Oils etc INSTALLATION amp START UP RECOMMENDATIONS Start up instruction for new installations or after maintenance and repairs Best Plumbing Configuration e System should be designed to keep the flow meter full of liquid at all times e Use full 2 pipe for the installation e The pipe should be laid out as straight as possible to reduce pressure loss from flow restriction e Meter inlet and outlet should be lower than the associated system plumbing sump position e It is not necessary for
15. redirected only slightly from its natural flow there is very little pressure drop across the meter unlike other meters that use multiple measuring chambers The meter design uses high quality long life materials for the rotor bearings and journals Since there is no contact between the rotors and the fluid chamber wall these critical components have a long life expectancy Calibration of the meter involves adjusting the rotation of the output shaft relative to the rotation of the internal rotors of the meter This is accomplished by changing the settings on an adjuster device Calibration of the meter is discussed in detail in the section Meter Calibration on page 5 ACCURACY The TCS model 700 series flow meter holds the National Type Evaluation Program NTEP Certificate of Conformance meeting the National Institute of Standards and Technology NIST Handbook 44 requirements The TCS model 700 series flow meter combines outstanding accuracy with superior performance At constant flow with all other conditions being constant the flow meter does not vary more than 0 02 in repeatability Due to the smooth flowing characteristics of this meter design the minimum seal area provides a sustained accuracy over a wide range of flow and accuracy regardless of pressure METER APPLICATION When installing a meter into a system several factors must be considered Flow Rate The flow rate of the system must be within the meter s capability The
16. ritten statement setting forth the nature of the defect and RGA number REPAIR WARRANTY All repair work is warranted for ninety 90 days from the date of shipment to customer Some parts may be warranted for longer periods by the Original Equipment Manufacturer DESIGN AND EQUIPMENT CHANGES Any changes in design or improvements added shall not create any obligation to install same on equipment previously sold or ordered LIMITATIONS THERE ARE NO OTHER WARRANTIES OF ANY KIND EXPRESS OR IMPLIED TCS SPECIFICALLY DISCLAIMS ANY WARRANTY OR MERCHANTABILITY OR OF FITNESS FOR ANY PARTICULAR PURPOSE TCS s sole obligation which shall represent the buyer s sole and exclusive remedy shall be to repair or at TCS s option to replace any product or part determined to be defective In no event shall TCS be liable for any special direct indirect incidental consequential or other damages of similar nature incurred by the buyer or any third party TCS has not authorized on its behalf any representations or warranties to be made nor any liability to be assumed except as expressly provided herein there is no other express or implied warranty TOTAL CONTROL SYSTEMS 2515 Charleston Place Fort Wayne IN 46808 Toll Free 800 348 4753 Tel 260 484 0382 Fax 260 484 9230 E mail sales Otcsmeters com e Website www tcsmeters com
17. t from the passage through the meter of welding slag or spatter thread cuttings rust etc There are several methods of protecting meters from this material including the insertion of a spool a flanged length of pipe equal in length to the meter and any accessories attached to the meter in place of the meter until the system is flushed temporarily bypassing the plumbing around the meter or by installing a strainer ahead of the meter in the line Once the system has run clean for a period of time the meter may be reinstalled or protective devices removed Calibration The meter shall be tested and calibrated when installed Total Control Systems shall not be responsible for loss of product or any damages resulting from the end user s failure to test this meter to insure proper calibration Improper calibration can result in incorrect measurements of fluid being delivered It is the owner s responsibility to report this device to the local U S Weights and Measures officials for their inspection before the meter is put to use Changing the Direction of Flow The meter is set up at the factory for left to right flow To change the meter to right to left flow begin by removing the screws 9 on the Meter Assembly Breakdown and the adjuster cover plate 7 on the front of the meter Remove both the screws 1 the drive shaft retainer 10 the drive shaft 3 the e ring 4 and the face gear 5 Reinstall the gear on the shaft
18. the air eliminator to be installed bolted directly to the meter It can be installed upstream from the meter For effective operation of the air eliminator it should be mounted between the meter and any valves tees or any other potential places where air may enter the system e The metering system should include a means to prove meter accuracy e The meter and piping must be installed in such as way as to avoid accidental draining of the meter Slow Flooding Of System When a pump is turned on and a valve opened in a new dry system tremendous pressure can be built up in the piping and forced through the meter The high pressure and volume of air causes the meter to operate more quickly than normal When product reaches the meter there is an abrupt slowing of the meter rotors which could cause damage to the register rotor shafts packing gear and or blade timing gears and other components The recommended method of starting any system is to flood the piping gradually This allows product to slowly force the air from the entire system When operating the meter with accessories observe the following recommendations e Valves should be opened slowly to avoid a pressure surge that can damage the meter air eliminator System pressures should be maintained below 70 PSI e Strainers should be cleaned frequently Protection From Debris On new installations care must be taken to protect the meter from damage during start up Damage may resul
19. with the gear teeth facing up Snap the e ring back into place to hold the gear in place Reinstall the shaft mating the face gear with the drive gear of the packing capsule assembly Reinstall the screw and cover plate The meter will now be set up for right to left flow STORAGE INSTRUCTIONS Short periods of non use of the meter a week or less will present no problem provided that the meter remains full of product For long periods of non use such as winter storage the following procedure is recommended Before long term storage a good practice is calibration of the meter to determine that it is functioning properly 1 2 3 4 To store the meter when it is left in line flush the system with clean water until 40 50 gallons of water have gone through the meter Pump a 50 anti freeze 50 water solution through the entire system 100 RV antifreeze may be used instead With the pump running shut off a valve downstream from the meter making sure that anti freeze solution is present at that point Then close an upstream valve such that the meter remains full of anti freeze solution Remove the register from the meter and lubricate the drive coupling shaft After lubrication it replace the register onto the meter When starting the system after a period of storage rechecking the meter s calibration as detailed earlier in the service manual METER CALIBRATION The procedure to change the calibration of the meter 1
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