Pump Solutions Group Neptune 600 User Manual

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NEPTUNE

SERIES 600 “dia-PUMP”

MODELS 610 thru 647

NEPTUNE

CHEMICAL PUMP CO., INC.

Lansdale, PA. 19446 * Tel.: 215-699-8700 * FAX: 215-699-0370

WARNING

LOCKOUTS ARE REQUIRED BEFORE

SERVICING THIS EQUIPMENT.

SAFETY INSTRUCTIONS:

Shut off/ Lockout pump Power before

Servicing. Be certain pump isolation

valves are closed – chemical is shut off.

Bleed pressure before servicing.

TABLE OF CONTENTS

SECTION PARAGRAPH PAGE

I--

GENERAL DESCRIPTION LIMITED WARRANTY PARTS ORDERING INSTRUCTIONS

1 2 3

II --

1.0 GENERAL

2.0 SUCTION PIPING

3.0 DISCHARGE PIPING

4.0 ADJUSTMENT OF INTERNAL RELIEF

5.0 INSTALLATION OUTDOORS

6.0 START UP PROCEDURE

III --

7.0

IV 8.0 MOTOR OPERATING CONDITIONS 13

V--

VI 9.0

10.0 SPARE PARTS 28

VII 11.0

INSTALLATION INSTRUCTIONS

VALVE

NORMAL MAINTENANCE 9-12 MAINTENANCE 9-12

TROUBLE SHOOTING CHART

PARTS LIST AND PUMP DRAWINGS

SPECIAL INSTRUCTIONS FOR PNEUMATIC STROKE CONTROL

14-16

17-27

4 5 6 6

8 8

VIII --

DRAWINGS FOR PNEUMATIC STROKE CONTROL MATERIAL SAFETY DATA SHEET

SECTION I

GENERAL DESCRIPTION

The Neptune series 600 “dia-PUMP” is a reliable metering pump of the high-pressure diaphragm type. Under constant conditions of temperature, pressure, and capacity adjustment settings, a plus or minus range of 1% metered discharge volume is maintained.

A plunger reciprocating at a fixed stroke displaces hydraulic fluid which actuates a flexible, chemically inert, Teflon®, diaphragm to create pumping action. The capacity of the pump is regulated by controlling the volume of hydraulic fluid, which bypasses the diaphragm cavity.

Metering accuracy is maintained by a control rod which allows hydraulic fluid replacement and air venting automatically with each stroke, while also taking into account temperature changes of the hydraulic fluid. Metering accuracy is also insured by the use of double ball check valves on the suction and discharge of the pump.

PLEASE READ THE INSTRUCTION MANUAL COMPLETELY BEFORE INSTALLING THE PUMP.

SECTION I

NEPTUNE CHEMICAL PUMP COMPANY

LIMITED WARRANTY

All Neptune Pumps are tested at the factory prior to shipment. Each part used in their construction has been carefully checked for workmanship.

If the pump is installed properly, Neptune Chemical Pump Company, Inc. warrants to the purchaser of this product for a period of twelve months from the date of first use or eighteen months from shipment, whichever occurs first, this products shall be free of defects in material and/or workmanship, as follows:

1. Neptune Chemical Pump Company, Inc. will replace, at no charge, any part that fails due to a defect in material and/or workmanship during the warranty period, FOB our factory, Lansdale, Pennsylvania. To obtain warranty service, you must forward the defective parts to the factory for examination, freight pre-paid.

2. This warranty period does not cover any product or product part which has been subject to accident, misuse, abuse or negligence. Neptune Chemical Pump Company, Inc. shall only be liable under this warranty if the product is used in the manner intended by the manufacturer as specified in the written instructions furnished with this product.

Any express warranty not provided in this warranty document, and any remedy for breach of contract that, but for this provision, might arise by implication or operation o f law, is hereby excluded and disclaimed. Under no circumstances shall Neptune Chemical Pump Company, Inc. be liable to purchaser or any other person for any charge for labor, repairs, or parts, performed or furnished by others, nor for any incidental consequential damages, whether arising out of breach of warranty, express or implied, a breach of contract or otherwise. Except to the extent prohibited by applicable law, any implied warranty of merchantability and fitness for a particular purpose are expressly limited in duration to the duration of this limited warranty.

Some states do not allow the exclusion or limitation of incidental or consequential damages, or allow limitations on how long any implied warranty lasts, so the above limitations may not apply to you. This warranty gives you specific legal rights, and you may have other rights which may vary from state to state.

IMPORTANT

SHOULD IT BE NECESSARY TO SEND THE PUMP TO THE FACTORY FOR REPAIR OR MAINTENANCE REBUILDING, DRAIN ALL OIL AND CHEMICAL FROM PUMP BEFORE SHIPPING, FAILURE TO DO SO CAN CAUSE EXTENSIVE DAMAGE TO THE MOTOR.

‘ SEE IMPORTANT NOTICE – RETURN GOODS AUTHORIZATION

IMPORTANT NOTICE

RETURN GOODS AUTHORIZATION

(1) All equipment returned to Neptune Chemical Pump Company, Inc. requires proper Returned Goods

Authorization Number (RGA) and tags.

(2) All equipment returned to the factory for repair or service must first be thoroughly flushed and have all

chemical contact areas neutralized.

(3) All equipment which has been in contact with chemicals must be accompanied by a copy of the Chemical

Product Material Safety Data Sheet (MSDS).

(4) Failure to comply with the above instructions, will result in equipment being returned to sender, freight

collect, without service.

PARTS ORDERING INSTRUCTIONS

The complete model number and serial number of the pump must be furnished to insure prompt and accurate parts service. These numbers are found on the name plate (sample photo below) located on the side of the pump. Refer to Section VI for complete parts lists.

Send all orders or inquired for parts to:

Parts Department Neptune Chemical Pump Company, Inc. P.O. Box 247 Lansdale, PA 19446 Tel: 215-699-8700 Fax: 215-699-0370

NOTE! PLEASE SUPPLY BOTH MODEL AND SERIAL NUMBERS.

SECTION II

INSTALLATION INSTRUCTIONS

1.0 GENERAL

1.0.1 UNPACKING & INSPECTION

When unpacking a pump or chemical feed system, be certain that no parts are thrown away. Examine the equipment for possible damage. If damage has occurred, file claim with the common carrier within 24 hours. Neptune will assist in estimating the repair costs.

1.0.2 The “dia-Pump” should be located on a level surface. Four mounting holes are p rovided to anchor the pump securely to the mounting surface. All piping to the pump should be supported to prevent stress on the pump input and output fittings.

1.0.3 Before connecting the pump, make sure that all fittings are completely clean by flushing thoroughly. Any foreign matter entering the pump can damage the internal parts and severely limit the life of the pump.

1.0.4 A “Y” STRAINER (AT LEAST ONE PIPE SIZE LARGER THAN SUCTION INLET SIZE OF THE PUMP) MUST BE INSTALLED IN THE SUCTION LINE OF THE PUMP TO INSURE AGAINST FOREIGN MATTER ENTERING THE PUMP.

1.0.5 It is recommended that shut-off valves and unions be placed in the suction and discharge lines if possible. Such an arrangement will facilitate servicing the pump.

1.0.6 The electrical supply to the pump must match the motor nameplate characteristics. The motor rotation is counter clockwise when viewed from the top of the motor or looking down on the pump. (See Figure 1)

IMPORTANT

On single phase units, the rotation is set at the factory and must not be changed.

On all units, motor rotation may be viewed through the coupling access points just below the motor.

Please note Figure 1, indicatingthe correct rotation. Operation with the incorrect rotation will damage the pump and motor.

1.0.8 Please note, that someitems in the parts list have morethan one part number foran individual figure number. These different part numbers insure unique identification of parts, which are available in more than one material of construction, or as in the case of gears, more than one speed. Please use the part number, not the figure number when ordering.

1.0.9 Fill gear box and pump by pouring the hydraulic fluid (drive lubricant) supplied through the fill opening at the rear of the pump. Pour fluid in slowly until it is at the dipstick mark. The control knob should be in the zero position during the filling. PLEASE NOTE: TO VENT THE AIR, REMOVE A VENT PLUG, LOCATED ON TO OF THE OIL HEAD.

Allow 30 minutes for hydraulic fluid to make its way into pump chamber and then recheck fluid level.

The hydraulic fluid supplied by Neptune is EP SAE 90.

Common sources for hydraulic fluid are:

Shell Oil Omala #220 Mobil Oil Mobil Gear #629 Sun Oil Sun Oil #220 Texaco Meropa #220

2.0 SUCTION PIPING

2.0.1 The suction piping to the pump must be absolutely air tight and one size larger than suction inlet size of the pump. It is suggested that the suction piping be tested with low pressure and a soap solution to assure that no leaks exist. Limit the total length of the suction line to 3-4 feet suction lift or 6-7 feet flooded suction. Minimize bends, elbows, or other restrictions.

2.0.2 NEPTUNE RECOMMENDS THAT THE “dia-PUMPS” BE OPERATED WITH A FLOODED SUCTION, AS THIS WILL FACILITATE START UP AND INCREASE THE SERVICE LIFE OF THE PUMP.

2.0.3 It is highly recommended that all solution tanks be furnished with a low level cut off switch or low level alarm and cut off switch to prevent the pump from running dry. OPERATION AGAINST A DRY SYSTEM WILL CAUSE DAMAGE TO THE PUMP DIAPHRAGM AND REDUCE THE OPERATING LIFE OF THE PUMP.

3.0 DISCHARGE PIPING

3.0.1 It is recommended that the “dia-PUMP” operate against a minimum discharge pressure of 50 psig.

3.0.2 All Neptune Series 600 “dia-Pumps” are supplied with an internally pre-set relief valve. This relief valve is set

3.0.3 To protect the piping system, it is recommended that an external relief valve as manufactured by Neptune Chemical

3.0.4 Discharge piping should equal discharge port size.

4.0 ADJUSTMENT OF INTERNAL RELIEF VALVE

4.0.1 All Neptune Series 600 “dia-Pumps” are supplied with an internally pre-set relief valve. The internal relief valve is set

approximately 25% above the actual rated discharge pressure of the pump and is designed to protect the pump should a discharge pressure beyond the rated limit of the pump occur.

Pump Company, or equal, be place in the discharge line of the pump.

as follows:

INTERNAL RELIEF VALVE SETTINGS (PSI)

Model 1/2H/P 3/4 H/P 1 H/P 1-1/2 HP 2 HP

610 1500 2500 3150 4375 ---615 1500 2500 3150 4375 ---620 ---- 625 750 1000 1500 625 ---- 625 750 1000 1500 635 ---- 300 350 550 750 637 ---- 300 350 550 750 637 PVC ---- 250 ---- ---- ---647 ---- ---- ---- ---- 300 647 PVC ---- ---- ---- ---- 250

The internal relief valve is designed to protect the pump itself should a discharge pressure beyond the relief valve setting occur.

If a customer order specifies a relief valve setting above those indicated above, the specified setting will be set at the factory. All pumps are tagged with the relief valve setting used by the factory.

To protect the external piping system, it is recommended that a relief valve as manufactured by Neptune Chemical or equal be placed in the discharge line of the pump. It is further recommended that this relief valve be piped into return of the tank with clear PVC tubing so that it can be determined if the solution is bypassing through the valve and returning to the tank, indicating a line blockage.

Drawing on page 18 illustrates the locations of the internal relief valve for Models 610 and 615 (FIG. #1435, #1411, #0145, #0119, #0146, #0120).

Drawing on page 20 illustrates the locations of the internal relief valve for Models 620 and 625 (FIG. #2335, #2311, #0145, #0119, #0146, #0120).

Drawing on page 22 illustrates the locations of the internal relief valve for Models 635 and 637 (FIG. #3235, #3211, #0145, #0119, #0146, #0120).

Drawing on page 24 illustrates the locations of the internal relief valve for Models 647 (FIG. #3235, #3211, #0145, #0119, #0146, #0120).

The drawing shows a passage connecting the hydraulic fluid reservoir with the hydraulic fluid side of the diaphragm.

The passage is interrupted by the relief valve ball (FIG. #1435, #2335, #3235) which is backed up by a relief valve spring (FIG #0146).

If, during the pump operation, the pressure on the hydraulic fluid side of the pump exceeds the set pressure of the internal relief valve, the ball is forced from its seal allowing the hydraulic fluid to flow back tot he reservoir.

4.0.2 To reset the relief valve to a higher pressure (the relief valve setting cannot be reduced because of design considerations), instructions are as follows:

4.0.21 Connect a test set-up shown in Figure IV below. NOTE: All parts must have a working

pressure rating above the required set pressure.

4.0.22 Start and run the pump until air is relieved from the discharge liquid (hand valve open).

4.0.23 Remove relief valve cap (FIG. #0120).

4.0.24 Close hand valve; pressure gauge should read between 250 and 4500 psi depending on pump

model.

4.0.25 Use 5/16” Allen wrench to adjust spring tension by turning relief valve adjusting screw (FIG.

#0119).

(1) To increase pressure, turn relief valve adjusting screw (FIG. #0119) in.

(2) To decrease pressure, turn relief valve adjusting screw (FIG. #0119) out.

4.0.26 After resetting or adjusting pressure, replace relief valve cap (FIG. #0119) completely in.

Do not attempt to set the internal relief valve more than 25% in excess of name plate rating.

5.0 INSTALLATION OUTDOORS

The “dia-PUMP” is a totally enclosed pump which can be used outdoors or indoors. When installed outdoors, make sure that the pump is protected against extremes of nature as follows:

5.0.1 Running of the pump when exposed to tropical sunshine with ambient temperature above 90° F (32°C) would cause excessive oil motor temperatures. The pump should be shaded and located in s uch a way as to permit an ample degree of air circulation.

5.0.2 Under cold conditions, the pump should be insulated and a heater should be supplied in order to maintain the hydraulic fluid at an ambient temperature above 30°F (-1°C).

6.0 START UP PROCEDURE

The following start up procedure is complete and does repeat instructions on filling the gearbox and pump.

6.0.1 Remove backpressure spring (anti-siphon spring) for start up. Reinstall after pump is operational if needed.

6.0.2 Flooded Suction: Refer to Section II, Paragraph 1.0.9, for instructions on filling gearbox with hydraulic fluid.

6.0.3 After having let pump stand for 30 minutes and having rechecked fluid level, set pump capacity indicator at approximately 30%. Be certain that pump suction and discharge lines are open.

6.0.4 Make c ertain that pumping chamber is flooded by loosening vent plug (FIG. #1412 for Models 610 & 615, FIG #2314 for Models 620 & 625, FIG. #3214 for Models 635 & 637) and allowing solution to appear. Then tighten discharge vent plug. This procedure will also allow air to vent from pumping chamber. The “dia-PUMP” WILL NOT FUNCTION IF AIR IS TRAPPED IN THE HYDRAULIC FLUID OR LIQUID PUMP CHAMBERS. Start pump.

6.0.5 On initial start-ups: Check for proper motor rotation (Refer to Paragraph 1.0.9). Run the pump for 10-20 seconds, then stop for 20-30 seconds. Repeat approximately 15 items in order to fill the diaphragm oil cavity. During these short runs, listen for any abnormal motor or crank noises, and if present, refer to trouble shooting chart.

WARNING

BEWARE APPLICATIONS WHERE WATER IS NOT COMPLETE WITH CHEMICAL TO BE PUMPED. EXAMPLE: NEVER FORCE PRIME WHEN PUMPING ACID OR OIL BASED PRODUCTS.

SECTION III

PUMP MODELS 610 AND 615

NORMAL MAINTENANCE

7.0 MAINTENANCE

Under normal conditions, the “dia-PUMP” should not require any significant amount of maintenance. It is advised that periodic visual observations be made of the oil level to made sure that it is within ¼” of the dipstick mark. The liquid end of the pump should also be inspected for leakage. These observations should be made regularly.

The hydraulic fluid should be drained and replaced twice a year, using the drain plug (FIG. #0130) at the back of the pump. This charge can be scheduled with the normal factory maintenance at seasonal periods.

7.0.1 Check Valves: Removing, cleaning, replacing.

The “dia-PUMP” incorporates a unique check valve design whereas the discharge and suction piping NEED NOT be disturbed in order to service the valves.

7.0.11 Remove discharge cap (FIG. #1412).

7.0.12 Remove ball retainer (FIG. #1424) using 5/16” Allen wrench.

7.0.13 Remove discharge valve cartridge (FIG. #1460) using special wrench provided. Be certain

that valve “O” ring (FIG. #1442) is removed with valve cartridge.

7.0.14 Remove suction cap (FIG. #1428).

7.0.15 Remove suction valve cartridge (FIG. #1460) using special wrench provided. Be certain that

valve “O” ring (FIG. #1442) is removed with valve cartridge.

7.0.16 Clean valve cartridges with suitable solvent. The valve cartridge is a complete and integral

unit and should not be disassemble for cleaning if the valves are found to be worn and in need of replacement; an entire valve cartridge in either suction or discharge should be ordered. The suction valve is the longer of the two valve cartridges.

7.0.17 To replace, reverse above procedure using a small amount of grease to hold valve ‘O” rings in

place. Do not over tighten the valve cartridges as this could damage the valve “O” rings.

REFER TO DRAWING ON PAGE 18.

7.1 MAINTENANCE

Under normal conditions, the “dia-Pump” should not require any significant amount of maintenance. It is advised that periodic visual observations be made of the oil level to make sure that it is within ¼” of the dipstick mark. The liquid end of the pump should also be inspected for leakage. These observations should be m ade regularly.

The hydraulic fluid should be drained and replaced twice a year, using the drain plug (FIG. #0130) at the back of the pump. This change can be schedule with the normal factory maintenance at seasonal periods.

7.1.1 Check Valves: Removing, cleaning, replacing.

The “dia-Pump” incorporates a unique check valve design whereas the discharge and suction piping NEED NOT be disturbed in order to service the valves.

Should the valves need cleaning, remove as follows:

7.1.11 Remove vent plug (FIG. #2314) with anti-siphon spring (FIG. #2318) if installed.

7.1.12 Remove eight valve cap screws (FIG. #2336) on suction and discharge caps.

SECTION III

PUMP MODELS 620 AND 625

NORMAL MAINTENANCE

7.1.13 Remove discharge cap (FIG. #2312) with retaining screen. Remove suction cap (FIG. #2328).

7.1.14 With heavy wood dowel or bar of soft material, tap and push complete valve stack out of pump

from top through to bottom. The valve stack consists of:

4 Valve Balls (FIG. #2340)

4 Valve Seats (FIG. #2363)

3 Ball Guides (FIG. #2362)

1Stack Spacer (FIG. #2361)

4 Valve Seat “O” Rings (FIG. #2342)

NOTE: Valve seats are

7.1.15 Clean valve stack parts with suitable solvent. Replace in same order as removed from top to

bottom, putting suction valve cap (FIG. #2328) in place with “O” ring first.

REFER TO DRAWING ON PAGE 20.

seated

both sides and may be reversed.

7.2 MAINTENANCE

The hydraulic fluid should be drained and replace twice a year, using the drain plug (FIG. #0130) at the back of the pump. This change can be scheduled with the normal factory maintenance at seasonal periods.

7.2.1 Check Valves: Removing, cleaning, replacing.

The “dia-Pump” incorporates a unique check valve design whereas the discharge and suction piping NEED NOT be disturbed in order to service the valves.

Should the valves need cleaning, remove as follows:

SECTION III

PUMP MODELS 635, 637 AND 647

NORMAL MAINTENANCE

TO VIEW FIGURE NUMBERS:

For Models 635 & 637 refer to Drawing on page 22.

For Model 647 refer to Drawing on page 24.

7.2.11 Remove vent plug (FIG. #3214) with anti-siphon spring (FIG. #3218) if installed.

7.2.12 Remove eight valve cap screws (FIG. #3236) on suction and discharge caps.

7.2.13 Remove discharge cap (FIG. #3212) along with retaining screen (FIG. #3216). Remove

suction cap (FIG. #3228).

7.2.14 With heavy wood dowel or bar of soft material, tap and push complete valve stack out of pump

from top through to bottom. The valve stack consists of:

4 Valve Balls (FIG. #3240)

4 Valve Seats (FIG. #3222)

2 Ball Retainers (FIG. #3224)

3 Stack Spacers (FIG. #3226)

1 Valve Ball Spacer Retainer (FIG. #3220)

4 Valve Seat “O” Rings (FIG. #3242)

NOTE: Valve seats are

7.2.15 Clean valve stack parts with suitable solvent. Replace in same order as removed from top to

bottom, putting suction valve cap (FIG. #3228) in place with “O” ring first.

seated

both sides and may be reversed.

7.3.1 Procedure for replacing CONTROL ROD “O” RING (FIG. #1434 for Models 610 & 615, FIG. #2334 for Models 620 & 625, FIG. #3234 for Models 635, 637 & 647) and SEALING PLATE “O” RING (FIG. #2333 for Models 620 & 625, FIG. #3233 for Models 635, 637 & 647).

7.3.11 Remove hydraulic fluid from gear box.

7.3.12 Remove indicator plate (FIG. #0118) by removing two indicator plate screws (FIG. #0143).

7.3.13 Remove control rod assembly with control rod attached (FIG. #0117 for all pumps; #1406 and #1408 for

Models 610 &615, #2306 and #2308 for Models 620 & 625, #3206 and #3208 for Models 635, 637 &

647) by turning counter clockwise until threads are disengaged, then pulling out.

7.3.14 Remove four sealing nut retaining screws (FIG. #0144).

7.3.15 Remove seal plate retainer (FIG. #0166) and sealing nut (FIG. #0115).

7.3.16 Remove seal plate (FIG. #1407 for Models 610 & 615, FIG #2307 for Models 620 & 625, FIG. #3207 for

Models 635, 637 & 647) using small brass hook to pry loose.

7.3.17 Replace control rod “O” ring (FIG. #1434 & 1465 [BACKUP RINGS] for Models 610 & 615, FIG. #2334

for Models 620 & 625, FIG #3234 for Models 635, 637 &647) and/or sealing plate “O” ring (FIG. #1433 for Models 610 & 615, FIG. #2333 for Models 620 & 625, FIG. #3233 for Models 635, 637 & 647).

7.3.18 When replacing sealing plate, take care so as to not shear the sealing plate “O” ring (FIG. #1433 for

Models 610 & 615, FIG. #2333 for Models 620 & 625, FIG. #3233 for Models 635, 637 & 647). Apply grease to “O” ring before assembly.

7.3.19 Replace balance of parts and fill pump with hydraulic fluid per previous instructions.

7.3.20 Follow start-up procedure as if starting a new pump. Refer to Section II, Paragraph 1.0.9 and 6.0.

7.4.1 Removal of pump head and replacement of diaphragm.

7.4.11 Remove drain plug (FIG. #0130), and drain hydraulic fluid.

7.4.12 Remove long and short pump head bolts (FIG. #1438 and #1444 for Models 610 & 615, FIG. #2338 and

#2344 for Models 620 & 625, FIG. #3238 and #3244 for Models 635, 637 & 647). Lift pump head (FIG. #1402 for Models 610 & 615, FIG. #2302 for Models 620 & 625, FIG. #3202 for Models 635, 637, &

647) away from pump.

7.4.13 Remove and examine Teflon diaphragm (FIG. #1410 for Models 610 & 615, FIG.#2310 for Models 620

& 625, FIG. #3210 for Models 635, 637 & 647). Remove and examine the liquid side diaphragm backup plate (FIG. #1430 for Models 610 & 615, FIG. #2330 for Models 620 & 625, FIG. #3230 for Models 635, 637, & 647). Replace with new pump, if required. When replacing the Teflon diaphragm, be certain to line it up properly with the sealing grooves.

7.4.14 To reassemble, reverse the above procedure. Reassemble is facilitated by laying the pump on its side.

Be certain to tighten all bolts evenly. Tighten to 100 ft. lbs.

SECTION IV

MOTOR OPERATING CONDITIONS

8.0 The normal temperature rise for standard motors is 40° C above ambient temperature and, thus, it might appear that

the motor is operating at a higher than normal temperature. This situation is normal and should not cause concern.

As a precaution against motor overheating, it is recommended that the pump be located where adequate ventilation is available. It is also recommended that a MOTOR STARTER WITH THE PROPER OVERLOAD PROTECTION BE SUPPLIED AS AN ADDITIONAL SAFETY DEVICE.

SECTION V

TROUBLE SHOOTING CHART

SYMPTOM CAUSE REMEDY

1. Pump Motor Will Not Operate. A. Blown Fuse. Check for short circuit

2. Pump Does Not Deliver Rated

Capacity.

B. Open thermal overload device in starter

C. Low liquid level in tank (where low level cut-off is used).

D. Broken Wire Locate and repair.

E. Low voltage Check for too light wiring.

F. Oil “frozen” in pump. Thaw out.

A. Starved suction. Replace suction piping with larger

B. Leaky suction piping. Pressure test, repair or replace

C. Excessive suction lift. Rearrange equipment location to

D. Liquid too close to boiling point.

E. Air or gas trapped in oil of chemical solution.

Reset.

Fill Tank.

size.

defective piping.

reduce suction lift.

Lower temperature or increase suction pressure slightly.

Decrease capacity to 20% for 7 mins., then increase to 100% for 7 mins. Bleed air from valve system.

F. Worn or dirty valves or seats, or both.

G. Viscosity of liquid too high. 1. Reduce viscosity by heating or

H. Insoluble materials, crystallization or solids settling.

Clean or replace.

other means.

2. Increase size of suction piping.

3. Increase suction pressure slightly.

Limit solution strength to 5% by weight. Flush and clean solution tank periodically. Suction connection should be 2 to 4” from bottom of solution tank.

SYMPTOM CAUSE REMEDY

I. Low discharge pressure. A minimum discharge pressure of

50 psi is required to insure proper capacity control.

3. Pump delivers erratically. A. Leaky suction line. Repair or replace piping.

4. Motor overheats thermal

overload activates.

B. Worn or dirty valves or seats, or both.

C. Excessive excursion of ball valves from seats (indicated by ball chatter).

D. Insufficient suction pressure Increase suction pressure.

E. Liquid too close to boiling point.

F. Leaky system relief valve. Repairor replace relief valve.

G. Low hydraulic fluid level. Add hydraulic fluid.

A. Power s upply does not match motor.

B. Overload caused by operating pump beyond rated capacity.

Clean or replace valve assembly.

Increase back pressure.

Raise tank level.

Reduce temperature or raise suction pressure.

Check power supply against motor nameplate data.

Check operating pressure against pump manufacturer data plate maximum rating.

5. Noisy Operation.

1. In pump.

2. In Gear Reducer. A. Pounding noise at high

SYMPTOM CAUSE REMEDY

6. Oil level overflows reservoir.

A. Pump Valves Valves must move to open and

discharge pressure.

A. Flexible diaphragm punctured. Replace diaphragm and hydraulic

close, and they will make a clicking noise as they operate. These noises are sometimes amplified by natural resonance’s in piping system. They are usually indications of normal valve functioning.

Fluid compressibility causes reversal of load on gears at end of pressure stroke. Not considered detrimental.

fluid (drive lubricant) if contaminated.

SECTION VI

PARTS LIST FOR PUMP MODELS 610 & 615

(REFER TO DRAWING NO. 6100, PAGE 18)

FIG NO.

DESCRIPTION QTY.

0101 Gearbox 1 000349 013 0102 Worm Gear 58 SPM 1 000350 013

Worm Gear 117 SPM 1 000351 014

010

Eccentic 1 000352 0141 Screw 5/16-18 x 1-1/4'' LG 6 100205

010

Connecting Rod 1 000353 0142 Set Screw 1/4-20 x 3/8'' LG 1 100308

010

Eccentic Collar 1 000354 0143Screw #10-32 x 3/8'' LG 2 100309

010

Gear Shaft 1 000355 0144Screw 1/4-20 x 5/8'' LG 4 100211

010

Gear Shaft Retainer 1 000356 0145Relief Valve Spring 1 100310

010

Thrust Washer 1 000357 0146"O" Ring, Relief Valve Cap 1 100200

0111 Worm 58 SPM 1 100291 1401 Pump Bod

Worm 117 SPM 1 100292 1402 Pump Head 1 000372

011

Bearing Retainer 1 000358 1405Piston 1 000374

011

Connecting Rode Sleeve 1 000359 1406Control Rod 1 000375

011

Sealing Nut 1 000360 1407Sealing Plate 1 000376

011

Sealing Nut Retainer 1 000361 1408Control Rod Screw 1 000377

011

Control Knob 1 000362 1409Pump Body Side, Backup Plate 1 000194

011

Indicator Plate 1 000363 1410Telfon Diaphragm 1 000378

011

Relief Valve Adjusting Screw 1 000364 1411 Relief Valve Ball Guide 1 000379

012

Relief Valve Cap 1 000365 1412 Discharge Cap 1 002073 0121 Screw 1/4-20 x 1'' LG 3 100293 142 0122 Dow el Pin 3/8'' x 1-1/2'' LG 3 100294 142 012

Spring Pin 1/4'' x 1-3/4'' LG 1 100295 1430Pump Head Backup Plate 1 000195 012

Screw 1/4-20 x 5/8'' LG 4 100211 1432 1/16'' Pipe Plug 1 100210 012

Upper Bearing Cup 1 100296 1433"O" Ring, Sealing Plate 1 100185 012

Upper Bearing Cone 1 100297 1434"O" Ring, Control Rod 1 100188 012

Lower Bearing Cup 1 100298 14351/4'' Dia. Ball 1 100559 012

Lower Bearing Cone 1 100299 1438Screw 1/2-13 x 4'' LG 2 100316 012

Fill Plug Dipstick 1 000366 1442 "O" Ring, Valve Seat 2 100204

0130 1/2'' Pipe Plug 1 100300 1443 0131 Motor Coupling 1 100098 144 0132 Motor Coupling Ke 013

Screw 1/4-20 x 5/8'' LG 4 100211 1462 Suction Valve Cartridge 1 000217 013

Oil Seal 1 100303 1465Backup Ring 1 106546 013

Dowel Pin 5/8'' x 2'' LG 1 100304 013

Spring Pin 1/8'' x 3/4'' LG 1 100305

PART

NO.

1 100218 1460Discharge Valve Cartridge 1 000209

FIG NO.

DESCRIPTION QTY.

3/8'' Lock Washer 4 100217 Screw 8/8-16 x 1'' LG 4 100216 Indicator Scale 1 100307

Ball Retainer 2 000215 Suction Cap 1 000207

"O" Ring, Discharge & Suction Cap

Screw 1/2-13 x 1-3/4'' LG 8 100317

PART

NO.

1 000370

2 100200

SECTION VI

PARTS FOR PUMP MODELS 620 & 625

(REFER TO DRAWING NO. 6200, PAGE 20)

FIG. NO.

0101 Gearbox 1 000349 0140 Indicator Scale 1 100307 0102 W orm Gear 58 SPM 1 000350 0141 S crew 5/16-18 x 1-1/4'' LG 6 100205

W orm Gear 117 SPM 1 000351 0142 Set Screw 1/4-20 x 3/8'' LG 1 100308 0104 Eccentric 1 000352 0143 Screw #10-32 x 3/8'' LG 2 100309 0105 Connecting Rod 1 000353 0144 Screw 1/4-20 x 4 100211 0106 Eccentric Collar 1 000354 0145 Relief V alve Spring 1 100310 0107 Gear Shaft 1 000355 0146 "O"Ring, Relief V alve Cap 1 100200 0108 Gear Shaft Retainer 1 000356 2301 Pump Body 1 000380 0109 Thrust Washer 1 000357 2302 Pump Head 1 000382 0111 W orm 58 SPM 1 100291 2305 P iston 1 000384

W orm 117 SPM 1 100292 2306 Control Rod 1 000385 0113 Bearing Retainer 1 000358 2307 Sealing Plate 1 000386 0114 Connecting Rod Sleev e 1 000359 2308 Control R od Screw 1 000377 0115 Sealing Nut 1 000360 2309 Pump B ody S ide, Backup Pl ater 1 000387 0116 Sealing Nut Retainer 1 000361 2310 Telfon Diaphragm 1 000388 0117 Control Knob 1 000362 2311 Relief Valve Ball Guide 1 000389 0118 Indicator Plate 1 000363 2312 Discharge Cap 1 000390 0119 Relief Valve Adjusting Screw 1 000364 2314 Vent Plug 1 000392 0120 Relief Valve Cap 1 000365 2318 Anti-Siphon Spring 1 100320 0121 Screw 1/4-20 x 1'' LG 3 100293 2328 Suction Cap 1 000404 0122 Dowel P in 3/8'' x 1-1/2'' LG 3 100294 2330 Pum p Head Backup Plate 1 000406 0123 Spring Pin 1/4'' x 1-2/4'' LG 1 100295 2332 1/8'' Pipe Plug 1 100196 0124 Screw 1/4-20 x 5/8'' LG 4 100211 2333 "O"Ring, Seali ng Plate 1 100322 0125 Upper B eari ng Cup 1 100296 2334 "O"Ring, Control Rod 1 100323 0126 Upper B eari ng Cone 1 100297 2335 3/8'' Dia. Ball 1 100201 0127 Lower Bearing Cup 1 100298 2336 Screw 1/4-20 x 3/4'' LG 8 100329 0128 Lower Bearing Cone 1 100299 2337 "O"Ri ng, Vent Plug 1 100325 0129 Fill Plug Dipstick 1 000366 2338 Screw 5/8-11 x 4'' LG 2 100337 0130 1/2'' Pipe Pl ug 1 100300 2340 5/8'' Dia. Ball 4 100078 0131 Motoe Coupling 1 100098 2342 "O"Ring, V al ve Seat 4 100327 0132 Motor Coupling Key 1 100218 2343 "O "Ri ng, Valve Cap 2 100328 0133 Screw 1/4-20 x 5/8'' LG 4 100211 2344 Screw 5/8-11 x 2'' LG 8 100343 0135 Oil Seal 1 100303 2361 Stack Spacer 1 002833 0136 Dowel P in 5/8'' x 2'' LG 1 100304 2362 Ball G uide 3 002154 0137 Sprin 0138 3/8'' Lock Washer 4 100217 0139 Screw 3/8-16 x 1'' LG 4 100216

DESCRIPTION Q T Y.

Pin 1/8'' x 3/4'' LG 1 100305 2363 Valv e Seat 4 001432

PART

NO.

FIG.

NO.

DESCRIPTION QTY.

PART

NO.

Valve stacks for the Series 620/625 pumps have been improved by the addition of close tolerance ball guides, which allow better accuracy and better valve life at higher pressures.

Original and improved stack arrangements are shown in the figures on page 27.

Parts are currently furnished only for the improved version. When ordering replacement sears for an original valve stack design, order the ball guides (FIG. #2362) and spacer (FIG. #2361). Installing these parts and discarding the old spacers and seats will upgrade the pump to the improved valve arrangement.

If seats are not replaced, it is not necessary to change the spacers and ball guides. If seats are replaced (the new seats are of a different thickness) the ball guides and spacers must also be replaced.

SECTION VI

0142

SetS

1/4-20x3/8'' LG

100308

3244

5/8-11x2'' LG

100343

0146

"O"Ri

100200

PARTS LIST FOR PUMP MODELS 630, 635 & 637

(REFER TO DRAWING NO. 6300, PAGE 22)

NOTE: N-3 PUMPS HAVE 316SS PUMP HEAD AND 316SS TRIM.

N-4 PUMPS HAVE C-20 PUMP HEAD AND C-20 TRIM.

FIG.

NO.

0101 Gearbox 1 000349 3201 Pump Body 1 000414 0102 Worm Gear 58 SPM 1 000350 3202 Pump Head (N3) 1 000416

Worm Gear 117 SPM 1 000351 Pump Head (N4) 1 000417

Worm Gear 144 SPM 1 003101 3205 Piston 1 000418 0104 Eccentric 1 000352 3206 Control Rod 1 000419 0105 Connecting Road 1 000353 3207 Sealing Plate 1 000420 0106 Eccentric Collar 1 000354 3208 Control Rod Screw 1 000377 0107 Gear Shaft 1 000355 3209 Pump Body Side, Backup Plate 1 000421 0108 Gear Shaft Retainer 1 000356 3210 Teflon Diaphragm 1 000422 0109 Thrust washer 1 000357 3211 Relief Valve Ball Guide 1 000423 0111 Worm 58 SPM 1 100291 3212 Discharge Cap (N3) 1 000424

Worm 117 SPM 1 100292 Discharge Cap (N4) 1 000425

Worm 144 SPM 1 106550 3214 Vent Plug (N3) 1 000426 0113 Bearing Retainer 1 000358 Vent Plug (N4) 1 000427 0114 Connecting Rod Sleeve 1 000359 3216 Retainer Screen (N3) 1 000428 0115 Sealing Nut 1 000360 Retainer Screen (N4) 1 000429 0116 Sealing Nut Retainer 1 000361 3218 Anti-Siphon Spring (N3) 1 002384 0117 Control Knob 1 000362 Anti-Siphon Spring (N4) 1 002426 0118 Indicator Plate 1 000363 3220 Spacer-Retainer (N3) 1 000430

0119 Relief Valve Adjusting Screw 1 000364 Spacer-Retainer (N4) 1 000431 0120 Relief Valve Cap 1 000365 3222 Valve Seat (N3) 4 000432

0121 Screw 1/4-20 x 1'' LG 3 100293 Valve Seat (N4) 4 000433 0122 Dowel Pin 3/8'' x 1-1/2'' LG 3 100294 3224 Ball Retainer (N3) 2 100434 0123 Spring Pin 1/4'' x 1-3/4'' LG 1 100295 Ball Retainer (N4) 2 000435 0124 Screw 1/4-20 x 5/8'' LG 4 100211 3226 Stack Spacer (N3) 3 000436 0125 Upper Bearing Cup 1 100296 Stack Spacer (N4) 3 000437 0126 Upper Bearing Cone 1 100297 3228 Suction Cap (N3) 1 000438 0127 Lower Bearing Cup 1 100298 Suction Cap (N4) 1 000439 0128 Lower Bearing Cone 1 100299 3230 Pump Head Backup Plate (N3) 1 000440 0129 Fill Plug Dipstick 1 000366 Pump Head Backup Plate (N4) 1 000441 0130 1/2'' Pipe Plug 1 100300 3232 1/4'' Pipe Plug 1 100332 0131 Motor Coupling 1 100098 3233 "O" Ring, Sealing Plate 1 100092 0132 Motor Coupling Key 1 100218 3234 "O" Ring, Control Rod 1 100184 0133 Screw 1/4-20 x 5/8'' LG 4 100211 3235 5/8'' Dia. Ball 1 100074 0135 Oil Seal 1 100303 3236 Screw 5/16-18 x 3/4'' LG 8 100344 0136 Dowel Pin 5/8'' x 2'' LG 1 100304 3237 "O" Ring, Vent Plug 1 100335 0137 Spring Pin 1/8'' x 3/4'' LG 1 100305 3238 Screw 5/8-11 x 4'' LG 2 100337 0138 3/8'' Lock Washer 4 100217 3240 1'' Dia. Ball (N3) 4 100338 0139 Screw 3/8-16 x 1'' LG 4 100216 1'' Dia. Ball (N4) 4 100339 0140 Indicator Scale 1 100307 3242 "O" Ring, Valve Seat 4 100340 0141 Screw 5/16-18 x 1-1/4'' LG 6 100205 3243 "O" Ring, Valve Cap 2 100341

0143 Screw #10-32 x 3/8'' LG 2 100309 0144 Screw 1/4-20 x 5/8'' LG 4 100211 0145 Relief Valve Spring 1 100310

DESCRIPTION QTY.

crew

ng,ReliefValveCap

PART

NO.

FIG.

NO.

crew

DESCRIPTION QTY.

PART

NO.

SECTION VI

PARTS LIST FOR PUMP MODEL 647

(REFER TO DRAWING NO. 6347, PAGE 24)

NOTE: N-3 PUMPS HAVE 316SS PUMP HEAD AND 316SS TRIM.

N-4 PUMPS HAVE C-20 PUMP HEAED AND C-20 TRIM.

FIG NO.

DESCRIPTION QTY.

PAR NO.

FIG. NO

DESCRITPION QTY.

PAR NO.

0101 Gearbox 1 000349 0146 “O” Ring, Relief Valve Cap 1 100200 0102 Worm Gear 144 SPM 1 003101 0166 Motor Coupling, 7/8” 1 100301 0104 Eccentric 1 000352 3206 Control Rod 1 000419 0105 Connecting Rod 1 000353 3207 Sealing Plate 1 000420 0106 Eccentric Collar 1 000354 3208 Control Rod Screw 1 000377 0107 Gear Shaft 1 000355 3209 Pump Body Side, Backup Plate 1 000421 0108 Gear Shaft Retainer 1 000356 3210 Teflon Diaphragm 1 000422 0109 Thrust Washer 1 000357 3211 Relief Valve Ball Guide 1 000423 0111 Worm 144 SPM 1 106550 3230 Pump Head Backup Plate (N3) 1 000440 0113 Bearing Retainer 1 000358 Pump Head Backup Plate (N4) 1 000441 0114 Connecting Rod Sleeve 1 000359 3232 ¼” Pipe Plug 1 100332 0115 Sealing Nut 1 000360 3233 “O” Ring, Sealing Plate 1 100092 0116 Sealing Nut Retainer 1 000361 3234 “O” Ring, Control Rod 1 100184 0117 Control Knob 1 000362 3235 5/8” Dia. Ball 1 100074 0118 Indicator Plate 1 000363 3236 Screw 5/16-18 x ¾” LG 8 100344 0119 Relief Valve Adjustment Screw 1 000364 3238 Screw5/8-11 x 4” LG 2 100337 0120 Relief Valve Cap 1 000365 3242 “O” Ring, Valve Seat 4 100340 0121 Screw ½-20 x 1” LG 3 100293 3243 “O” Ring, Connection Ports 2 100341 0122 Dowel Pin 3/8” x 1-1/2” LG 3 100294 3244 Screw 5/8-11 x 2” LG 8 100343 0123 Spring Pin ¼” x 1-3/4” LG 1 100295 3247 Pump Body 1 003724 0124 Screw ¼-20 x 5/8” LG 4 100211 3248 Pump Head (N3) 1 003725 0125 Upper Bearing Cup 1 100296 Pump Head (N4) 1 003733 0126 Upper Bearing Cone 1 100297 3249 Piston 2.4 Dia. 1 003723 0127 Lower Bearing Cup 1 100298 3250 Suction/Discharge Port (N3) 2 003718 0128 Lower Bearing Cone 1 100299 Suction/Discharge Port (N4) 2 003728 0129 Fill Plug Dipstick 1 000366 3251 Spacer-Retainer (N3) 1 003720 0130 ½” Pipe Plug 1 100300 Spacer-Retainer (N4) 1 003730 0131 Motor Coupling 1 100098 3252 Valve Seat (N3) 4 003717 0132 Motor Coupling Key 1 100218 Valve Seat (N4) 4 003727 0133 Screw ¼-20 x 5/8” LG 4 100211 3253 Ball Retainer (N3) 2 003722 0135 Oil Seal 1 100303 Ball Retainer (N4) 2 003732 0136 Dowel Pin 5/8” x 2” LG 1 100304 3254 Stack Spacer (N3) 3 003719 0137 Spring Pin 1/8” x ¾” LG 1 100305 Stack Spacer (N4) 3 003729 0138 3/8” Lock Washer 4 100217 3255 1-1/8” Dia. Ball (N3) 4 107229 0139 Screw 3/8-16 x 1” LG 4 100216 1-1/8” Dia. Ball (N4) 4 107230 0140 Indicator Scale 1 100307 3256 Suction Spacer (N3) 1 003721 0141 Screw 5-16-18 x 1-1/4” LG 6 100205 Suction Spacer (N4) 1 003731 0142 Set Screw ¼-20 x 3/8” LG 1 100308 3257 Ball Guide & Retainer (N3) 1 003716 0143 Screw # 10-32 x 3/8” LG 2 100309 Ball Guide & Retainer (N4) 1 003726

0144 Screw ¼-20 x 5/8” LG 4 100211 0145 Relief Valve Spring 1 100310

APPENDUM

600 SERIES PVC PUMP

THEORY OF OPERATION The NEPTUNE 600 PVC “dia-Pump” is a double diaphragm pump employing the basic drive unit of the Neptune

series 600 “dia-Pump”. All drive, stroke control parts and oil head are common to the original flat diaphragm models. An intermediate plate

and all parts in the liquid side are different from the basic pump. Hydraulic oil displaces a flat diaphragm, which displaces “an intermediate fluid” which, in turn, flexes the second flat

diaphragm. Note: 1. Valves may be removed for cleaning or replacement without disturbing the

sealed portion containing the intermediate fluid.

2. All Neptune 600 PVC pumps are furnished with the intermediate fluid installed and factory sealed. Do not attempt to add additional fluid. Follow the instructions below only if the head has lost fluid due to the diaphragm failure.

DISASSEMBLY OF LIQUID HEAD:

1.0.0 Shut pump off and disconnect suction and discharge piping. Remove drain plug in lower left had side or gear box and drain hydraulic oil from gearbox.

1.0.1 Remove (12) 3/8-16 screws and remove steel plate and liquid head. Process liquid and intermediate fluid will spill out when liquid head is removed.

1.0.2 Remove (1) 5/8-11 screws and remove intermediate plate. Some intermediate fluid and some hydraulic oil will spill out when intermediate plate is removed.

1.0.3 All parts should be inspected for any deficiency or wear and replaced if necessary. Both diaphragms should be replaced with new diaphragms.

1.0.4 To reassemble, reverse above procedure. Be certain that parts align properly and fill up hole on intermediate plate facing up.

REFILLING INTERMEDIATE PLATE:

1.0.6 Remove fill plug in the top of intermediate plate.

1.0.7 Slowly pour contents of premeasured intermediate fluid into fill hole. Pour slowly and gently rock pump to help air escape from chamber during filling.

1.0.8 Fill intermediate chamber with exactly 165ml of intermediate fluid. When the solution reaches to of fill hole, install fill plug. Do not overfill the intermediate liquid chamber, collapse of the diaphragm is not acceptable and could result in difficult start-up and in lost pump capacity.

1.0.9 Reinstall pump. Follow procedure in NETPUNE STANDARD OPERATING AND INSTRUCTION MANUAL for initial pump start up.

1.0.10 Recommended Spare Parts for 600 PVC Head (addition to standard spare parts lists). It is recommended that the following parts be kept in stock for a pump.

PART NUMBER DESCRIPTION QUANTITY

003014 Teflon Diaphragm 1 106693 Valve Seat “O” Ring 6 003080 Ball Seat 6 003172 Plate Gasket 2 003708 Backup Plate 1

10.0 SPARE PARTS

10.0.1 Important – When ordering spare parts, please show MODEL NUMBER AND SERIAL NUMBER of pump for which parts are being ordered. This information can be found on a stainless steel nameplate riveted to the s ide of the pump.

10.0.2 Recommended Spare Parts for PUMP MODELS It is recommended that the following parts be kept in stock for a pump:

FIG. NO. PART NO. DESCRIPTION Q UANTITY

1410 000378 Teflon Diaphragm 1 1433 100185 Sealing Plate "O" Ring 2 1434 100188 Control Rod "O" Ring 2 1442 100204 Valve "O" Ring 8 1443 100200 Discharge & Suction Cap "O" Ring 4 1460 000209 Discharge Valve Cartridge 1 1462 000217 Suction Valve Cartridge 1

SECTION VI

10.0.3 Recommended Spare Parts for PUMP MODELS 620 AND 625 It is recommended that the following parts be kept in stock for a pump:

FIG. NO. PART NO/ DESCRIPTION QUANTITY

2310 000388 Teflon Diaphragm 1 2363 001432 Valve Seat 4 2333 100322 Sealing Plate “O” Ring 2 2334 100323 Control Rod “O” Ring 2 2337 100325 Vent Plug “O” Ring 2 2340 100078 Valve Ball 4 2342 100327 Valve Seat “O” Ring 8 2343 100328 Discharge & Suction Cap “O” Ring 4

10.0.4 Recommended Spare Parts for PUMP MODELS 630, 635, AND 637 It is recommended that the following parts be kept in stock for a pump:

FIG. NO. PART NO/ DESCRIPTION QUANTITY

3210 000422 Teflon Diaphragm 1 3222 000432 Valve Seat (N3) 4

000433 Valve Seat (N4) 4 3233 100092 Sealing Plate “O” Ring 2 3234 100184 Control Rod “O” Ring 2 3237 100335 Vent Plug “O” Ring 2 3240 100338 Valve Ball (N3) 4

100339 Valve Ball (N4) 4 3242 100340 Valve Seat “O” Ring 8 3243 100341 Discharge & Suction Cap “O” Ring 4

10.0.5 Recommended Spare Parts for PUMP MODEL 647 It is recommended that the following parts be kept in stock for a pump:

FIG. NO. PART NO/ DESCRIPTION QUANTITY

3210 000422 Teflon Diaphragm 1 3233 100092 Sealing Plate “O” Ring 2 3234 100184 Control Rod “O” Ring 2 3242 100340 Valve Seat “O” Ring 8 3243 100341 Discharge & Suction Cap “O” Ring 4 3252 003717 Valve Seat (N3) 4

003727 Valve Seat (N4) 4

3255 107229 Valve Ball (N3) 4

107230 Valve Ball (N4) 4

PARTS ORDERING INSTRUCTIONS

Note: For prompt entry of orders for this pump; your order must include both model number and serial number.

SECTION VII

SPECIAL INSTRUCTIONS FOR SERIES 600 ‘DIA-PUMPS” WITH PNEUMATIC STROKE CONTROL

Refer to Drawing No. B-001743

11.0 FUNCTION OF THE PNEUMATIC STROKE CONTROL UNIT. The Neptune pneumatic stroke control unit controls the capacity of the “dia-PUMP’ over the full operating range.

Control is normally effected by an instrument air signal of 3 to 15 psi applied to a Moore Products Model 73N control valve (Part #100265), (other air signal parameters also available), which is an integral part of Neptune stroke control unit.

The variation of instrument air signal changes the air pressure on the diaphragm (Part #100287) in the control unit, which in turn changes the position of the pump capacity control rod (Part #000375, 000385, 000419).

The position change of the control unit can be observed on a capacity percentage scale (Part #100284) seen through the clear plexi-glass shell of the control unit.

The pneumatic control unit may be attached to any Series 600 “dia-Pump”. The operating range of supply air may vary between 40 and 80 psi. The Moore control valve is preset at the

factory for a supply air pressure of 60 psi. The “Pneumatic Stroke Control Unit” is accurately preset and tested at the factory. If the unit does not appear to

perform correctly, please contact your local representative or the factory. Do not attempt to adjust the unit in the field without factory advice.

11.0.1 The Moore control valve (Part #100265) which is attached to the Neptune actuator supplies a varying

air pressure to the flexible diaphragm (Part #100287) which is, in turn, balanced by operating spring (Part #100290). The capacity control rod (Part #000375, 000385, 000419) is attached to this system.

With the required air signal, the Moore control valve maintains the correct constant air pressure on the flexible diaphragm (Part #100287); i.e., constant position of the capacity control rod (Part #000375, 000385, 000419). The springs in the actuator and Moore control valve insure that the controlled position is maintained without fluctuation. Only changes in the air signal will cause variations in position of the diaphragm (i.e., capacity control rod). Supply air and instrument input ports are c learly marked on the Moore Control Valve.

The Moore control valve connections are marked for “Supply Air” and “Instrument Air”. It is important that clean, dry air be furnished to the “Pneumatic Stroke Control Unit”. Cross sectional drawings of the complete unit and the Moore control valve are included with the instruction manual.

11.0.2 Maintenance.

The Neptune “Pneumatic Stroke Control Unit” is normally maintenance free. Should, however, any parts be required, use attached drawing No. B-001743 and the parts list as an assembly guide.

11.0.3 Moore Control Valve

If more complete information is required on the Moore Model 73N control valve, request Moore bulletin #SD73-5 in writing from Neptune.

11.0 PARTS UNIQUE TO PUMPS SUPPLIED WITH NEPTUNE PNEUMATIC STROKE CONTROL.

(Refer to Drawing B-001743).

PART NO. DESCRIPTION QUANTITY

342 Control Mount 1

100283 Short Mounting Bolt 3

343 Plexi-Glass Shell 1

133284 Indicator Scale 1

344 Piston 1

100285 Range Spring 1

346 Housing 1 100265 Moore 73N Control Valve 1 100286 Retainer Bolt 1 100287 Pneumatic Diaphragm 1

347 Control Screw 1 100288 Control Spring Pin 1 100289 Long Mounting Bolt 3 100290 Operating Spring 1 100281 Retainer Plate 1

375 Control Rod (610-615 Pump) 1

385 Control Rod (620-625 Pump) 1

419 Control Rod (630-635-637 Pump) 1

PARTS ORDERING INSTRUCTIONS

NOTE: For prompt entry of orders for this pump; your order must include both model number and serial

number.

Pump Solutions Group Neptune 600 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual