background image

hd20fnmdl1sm-rev0717

sandpiperpump

.

com

IMPORTANT

Read the safety warnings and instructions in this manual 

before pump installation and start-up. Failure to comply with 

the recommendations stated in this manual could damage the 

pump and void factory warranty.

When used for toxic or aggressive fluids, the pump should 

always be flushed clean prior to disassembly.

Airborne particles and loud noise hazards. Wear eye and  

ear protection.

Before maintenance or repair, shut off the compressed air line, 

bleed the pressure, and disconnect the air line from the pump. 

Be certain that approved eye protection and protective clothing 

are worn at all times. Failure to follow these recommendations 

may result in serious injury or death.

When the pump is used for materials that tend to settle out 

or solidify, the pump should be flushed after each use to 

prevent damage. In freezing temperatures the pump should be 

completely drained between uses.

Before pump operation, inspect all fasteners for loosening 

caused by gasket creep. Retighten loose fasteners to prevent 

leakage. Follow recommended torques stated in this manual.

CAUTION

WARNING

Nonmetallic pumps and plastic components are not UV 

stabilized.  Ultraviolet radiation can damage these parts and 

negatively affect material properties. Do not expose to UV light 

for extended periods of time.

Model HD20F Non-Metallic 

In the event of diaphragm rupture, pumped material may enter 

the air end of the pump, and be discharged into the atmosphere. 

If pumping a product that is hazardous or toxic, the air exhaust 

must be piped to an appropriate area for safe containment.

This pump is pressurized internally with air pressure during 

operation. Make certain that all fasteners are in good condition 

and are reinstalled properly during reassembly.

Take action to prevent static sparking. Fire or explosion can 

result, especially when handling flammable liquids. The pump, 

piping, valves, containers and other miscellaneous equipment 

must be properly grounded.

Safety Information

WARNING

Pump not designed, tested or certified to be powered by 

 

compressed natural gas. Powering the pump with natural  

gas will void the warranty.

Use safe practices when lifting.

kg

WARNING

The use of non-OEM replacement parts will void (or negate) 

agency certifications, including CE, ATEX, CSA, 3A and EC1935 

compliance (Food Contact Materials).  Warren Rupp, Inc. cannot

 

ensure nor warrant non-OEM parts to meet the stringent 

requirements of the certifying agencies. 

UNIVERSAL ALL AODD

Summary of Contents for Sandpiper HD20F

Page 1: ...e 419 524 8388 Fax 419 522 7867 SANDPIPERPUMP COM Copyright 2017 Warren Rupp Inc All rights reserved Certified Quality ISO 9001 Certified ISO 14001 Certified SERVICE OPERATING MANUAL Original Instruct...

Page 2: ...etallic pumps and plastic components are not UV stabilized Ultraviolet radiation can damage these parts and negatively affect material properties Do not expose to UV light for extended periods of time...

Page 3: ...roubleshooting Guide SECTION 3 EXPLODED VIEW 11 Composite Repair Parts Drawing Composite Repair Parts List Material Codes SECTION 4 AIR END 17 Air Distribution Valve Assembly Air Valve with Stroke Ind...

Page 4: ...ss Filled Polypropylene Diaphragm Check Valve Materials B Buna N Buna N E EPDM EPDM H Hytrel Hytrel J Santoprene EPDM N Neoprene Neoprene P Neoprene Urethane V FKM FKM Check Valve Seat S Stainless Non...

Page 5: ...ibits outstanding abrasion and impact resistance along with environmental stress cracking resistance 180 F 82 C 35 F 37 C Urethane Shows good resistance to abrasives Has poor resistance to most solven...

Page 6: ...e is at a higher level than the pump flooded suction condition pipe the exhaust higher than the product source to prevent siphoning spills In the event of a diaphragm failure a complete rebuild of the...

Page 7: ...condition pipe the exhaust higher than the product source to prevent siphoning spills In the event of a diaphragm failure a complete rebuild of the center section is recommended 22 36 568 4X 57 15 3 5...

Page 8: ...y the check valves ball or flap orientation The pump primes as a result of the suction stroke The suction stroke lowers the chamber pressure P3 increasing the chamber volume This results in a pressure...

Page 9: ...g or freezing of the exhaust air causing the pump to cycle erratically or stop operating Water in the air supply can be reduced by using a point of use air dryer Air Inlet and Priming To start the pum...

Page 10: ...xceeds air supply pressure Increase the inlet air pressure to the pump Pump is designed for 1 1 pressure ratio at zero flow Does not apply to high pressure 2 1 units Cavitation on suction side Check s...

Page 11: ...38 45 46 20 32 37 29 Torque 120 in lbs 13 N m Torque 120 in lbs 13 N m Torque 150 in lbs 16 9 N m Torque 480 in lbs 54 N m Torque 150 in lbs 16 9 N m Torque 220 in lbs 24 N m Torque 220 in lbs 24 N m...

Page 12: ...28 545 005 115 Nut Hex 24 29 547 002 110 Nut Stop 8 30 560 001 360 O ring 2 31 560 213 360 O ring Buna N 2 560 213 363 O ring Fluorocarbon FKM 2 560 213 364 O ring EPDM 2 560 213 365 O ring Neoprene 2...

Page 13: ...Metallic 13 20 36 5 19 26 51 14 51 10 44 17 48 45 32 35 6 40 11 49 24 2 12 4 14 51 22 1 50 16 25 43 9 41 15 51 29 51 29 18 40 42 28 8 23 OPTIONAL 90 ROTATION 26 34 12 13 27 27 40 3 4 37 31 7 39 46 47...

Page 14: ...00 Plate Name 2 29 545 005 115 Nut Hex 24 30 547 002 110 Nut Stop 8 31 560 001 360 O ring 2 32 560 213 360 O ring Buna N 2 560 213 363 O ring Fluorocarbon FKM 2 560 213 364 O ring EPDM 2 560 213 365 O...

Page 15: ...Pads Seals Wear Pads and Seals 476 355 360 Check Valve Module Kit For Model HD20F1PBSPNS000 HD20F1PBSPBS000 Seat Buna N Flap Hinge Pad Retainer assembled 476 355 363 Check Valve Module Kit For Model H...

Page 16: ...UE 365 Neoprene Rubber Color coded GREEN 366 Food Grade Nitrile 368 Food Grade EPDM 371 Philthane Tuftane 374 Carboxylated Nitrile 375 Fluorinated Nitrile 378 High Density Polypropylene 379 Conductive...

Page 17: ...mbly Parts List Brass Stainless Item Part Number Description Qty 1 031 140 162 Air Valve Assembly 1 1 A 031 139 162 Sleeve and Spool Set 1 1 B 095 119 551 Body Air Valve 1 1 C 165 140 551 End Cap 2 1...

Page 18: ...550 Muffler 1 1 L 710 015 115 Screws Self tapping 4 For pumps with piped exhaust 1 031 147 000 Air Valve Assembly 1 includes all items on 031 146 000 minus 1 J 1 K 1 L Air Distribution Valve Servicin...

Page 19: ...rom sleeve 2 B inspect O Rings 2E replace if required Step 4 Lightly lubricate O Rings 2 C and 2 E Reassemble in reverse order Pilot Valve Assembly Parts List Item Part Number Description Qty 2 095 11...

Page 20: ...scard Step 3 Remove bushing plunger 7 inspect for wear and replace if necessary with genuine parts Step 4 Remove O ring 30 inspect for wear and replace if necessary with genuine parts Step 5 Lightly l...

Page 21: ...hd20fnmdl1sm rev0717 sandpiperpump com Model HD20F Non Metallic 21 Torque 480 in lbs 13 Diaphragm Service Drawing Non Overlay 5 WET END...

Page 22: ...ded No lubrication is required Step 4 Push the threaded outer diaphragm plate through the center hole of the diaphragm Note Most diaphragms are installed with the natural bulge out towards the fluid s...

Page 23: ...N809 2012 Pumps and Pump Units for Liquids Common Safety Requirements to verify conformance 5 YEAR Limited Product Warranty Warren Rupp Inc Warren Rupp warrants to the original end use purchaser that...

Reviews: