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Operating and Maintenance
For Petroleum Meters

M203
Rev. A
P.D. Oscillating Piston Flowmeters:

⁄

″

Type 4 Petroleum

⁄

″

Type 4 Petroleum

Содержание Neptune

Страница 1: ... Operating and Maintenance For Petroleum Meters M203 Rev A P D Oscillating Piston Flowmeters 11 4 Type 4 Petroleum 11 2 Type 4 Petroleum ...

Страница 2: ...r Register Models 4 Calibration 4 Register Maintenance 5 11 4 Preset Models with Auto Stop Valve 6 11 2 Preset Models with Auto Stop Valve 7 Measuring Chamber Maintenance 10 Gear Train Maintenance 12 Air Release Maintenance 12 General Maintenance 14 Troubleshooting 15 ...

Страница 3: ...e the amount of liquid left in the lines on the discharge side of the flowmeter will not be the same before and after every delivery It is therefore recommended that provision be made to keep the hose and outlet piping full of liquid at all times For this purpose a hose nozzle with a check valve should be used Pumping Out Underground Tanks In making provisions for pumping out underground tanks DO ...

Страница 4: ...installed The majority of service calls on new installations would be eliminated if these directions were followed Inlet and or outlet are marked on flowmeter do not install backwards After Installing Pass sufficient liquid to clear the lines of air Check the rate of flow It should not exceed the rated capacity of the flowmeter The bypass of the pump should be regulated to deliver the maximum prac...

Страница 5: ...nd assembly turn the nuts to lengthen the connecting link when the trip point is early or turn to shorten if the trip point is late For left hand assemblies turn in the opposite direction Continue this procedure until the final trip is on or close to the zero mark On double trip valves the intermediate flow rate will be satisfac tory when the final trip is adjusted as described Further adjustment ...

Страница 6: ...icket must slide freely between the guides If the ticket bends at the forward end of the guide remove the guide and rebend the tail of the guide 3 If it is necessary to raise or lower the printing push the two stop pins to the front or rear with the end of a screw driver 4 Replace the top cover and reseal To Change Setting of Letter Wheels 1 With the top plate removed the letter wheels are vis ibl...

Страница 7: ...steel housing on the sides and back fits into the groove in the bottom edge of cover Run a small amount of liquid through the flowmeter before testing To prevent tampering always reseal after calibration Note For broader change gear requirements refer to form TSG 310 REGISTER MAINTENANCE Register parts are such that only minor field repairs are advisable When a register is in need of repair or ser...

Страница 8: ...mbly and it is desired to change it to a Right Hand assembly or vice versa proceed as follows 1 Remove cotter pins E from valve linkage 2 Unscrew the outside register link lock nut P and remove connecting rod G 3 Remove register link N rotate 1 2 turn and reassemble onto register as described in appro priate valve adjustment instructions 4 Loosen two clamp screws on lower front of register lift re...

Страница 9: ...andle This can be done by loosen ing handle screw B and repositioning the handle as follows if the register mechanism will not latch up position the handle further toward the register If the valve will not close the handle may be positioned away from the register Fine adjustments may be made by chang ing the effective length of connecting rod G utilizing nuts P Effective length of connecting rod G...

Страница 10: ...age 1 Depress the emergency stop button on the register and turn the shaft O clockwise 2 Assemble register arm N on knurled knob in position as shown for specific assembly See Fig 8 Arm should move an equal distance each side of vertical center line M Angle x x 3 Assemble valve arm H as shown for specific assembly On the right hand assembly there must be one notch between the cast mark K on the va...

Страница 11: ...p position and still have regular latch up fully Check Auto Stop valve to insure that it is opening all the way Check valve by removing set screw B and clevis F from valve arm open valve as far as possible The distance between lug on arm and lug on stop plate must not be more than 1 4 DOUBLE TRIP MAINTENANCE To Disassemble and Assemble Double Trip Valve 1 Remove valve from flowmeter 2 Remove two s...

Страница 12: ...ng steps should be followed if it becomes neces sary to disassemble the operating shafts because of leakage Shaft seal cannot be corrected by tightening of the bearing bracket screws In this case new O rings are usually required See parts list for 2 Type 1A Double Trip Preset Valve 1 Remove the valve handle A connecting rod arm I two stop plates B and H and two roll pins C Remove eight screws and ...

Страница 13: ...ff bristle not wire brush and gasoline All foreign matter except deeply embedded chips or heavy corrosion due to water may be removed in this manner Do not use abrasives such as emery cloth or sandpa per When the piston is badly corroded the whole chamber should be replaced FIGURE 12 MEASURING CHAMBER COMPONENTS The parts of the measuring chamber which may show wear after long periods of service a...

Страница 14: ... nut with the fingers does not stop this leak replace U cup shaft seal It may also be necessary to replace U cup shaft seal and to replace the gear train 1 Remove the register 2 Remove the star connection 1 using a No 8 Allen wrench 3 Unscrew the stuffing box nut 2 4 Remove shaft seal 3 Inspect upper end of spindle to be sure it is free of nicks or burrs which might damage the new shaft seal when ...

Страница 15: ...over and lift out the mechanism 4 If the float is damaged remove by taking out the hinge pins and replace with a new one 5 If the valve is leaky a Remove the air release unit from the underside of the cover by unscrewing three small screws b Take off the sleeve with piston seal c Move the ball in the direction of the valve housing as far as possible and remove valve disc assembly d Inspect piston ...

Страница 16: ...eration as simple as possible See page 13 Being an instrument which measures by volume a flowmeter will record the passage of air as well as the liquid being measured Over registration is the result The air release valve is intended to prevent this condition by venting this air before it passes through the measuring chamber Incidental water will cause no damage to the flowmeter Trouble from this s...

Страница 17: ...f air and oil b Air release valve jamming allowing air to pass through the flowmeter c Spring in back pressure valve broken or valve stuck open d Vent line from the air release valve plugged causing air to pass through the flowmeter e Leaks in the suction line such as at valve stems pump packing or flange gaskets f Air pockets in closed end piping in the suction line g Manifold or compartment valv...

Страница 18: ... 4 71 2 CLEARANCE FOR REMOVING STRAINER 1 NPT THREAD 83 4 5 8 411 16 63 4 5 CLEARANCE FOR REMOVING FLOAT 4 5 21 2 137 8 91 4 115 16 153 4 93 8 21 8 4 53 8 31 2 11 16 DIA 2 HOLES 51 4 1 PIPE THREAD 33 8 3 CLEARANCE FOR REMOVING REGISTER 13 8 3 8 16 TAP 3 HOLES EQUALLY SPACED ON 47 8 DIA B C 3 4 DIA ...

Страница 19: ...8 43 4 83 4 1 NPT THREAD 227 8 5 8 43 4 93 8 4 5 21 2 137 8 91 4 115 16 153 4 17 8 23 8 65 8 51 4 2 PIPE THREAD 33 8 3 CLEARANCE FOR REMOVING REGISTER 13 8 3 8 16 TAP 3 HOLES EQUALLY SPACED ON 47 8 DIA B C 3 4 DIA 73 8 1 5 CLEARANCE FOR REMOVING FLOAT 71 2 CLEARANCE FOR REMOVING STRAINER ...

Страница 20: ... A International 1310 Emerald Road Greenwood SC 29646 9558 Tel Toll Free 800 833 3357 Tel Toll Free 800 833 3357 T 864 223 1212 Fax 864 223 0341 Specifications subject to change without prior notification ...

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