Sandpiper Signature Series - User Manual

Sandpiper Signature Series

23 pages

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

HDB3/HDB4

Heavy Duty Ball Valve

Design Level 4



A Unit of IDEX Corporation

800 N. Main St.,

Manseld, Ohio 44902 USA

Telephone (419) 524.8388

Fax (419) 522.7867

SANDPIPERPUMP.COM

©2017 Warren Rupp, Inc.

Certied Quality

ISO 9001 Certied

ISO 14001 Certied

6.26 159

18.62 473

19.25 489

31.19 792

26.06 662

DISCHARGE PORT

3" 150# ANSI FLANGE

4X

.75 HOLES EQUALLY

SPACED ON A

6.00 B.C.

SUCTION PORT

3" 150# ANSI FLANGE

4X

.75 HOLES EQUALLY

SPACED ON A

6.00 B.C.

AIR INLET

3/4" NPT

31.07 789

15.32 389

1.82

46

27.34

694

17.50 445

17.62 448

8X

.56 14

MOUNTING HOLE

11.00 279

15.00 381

AIR EXHAUST

1" NPT

18.63 473

37.15 944

26.06 662

AIR INLET

3/4" NPT

19.66 499

32.65 829

16.25 413

4.22 107

19.50 495

27.30 693

SUCTION PORT

4" 150# ANSI FLANGE

8X

.75 HOLES EQUALLY

SPACED ON A

7.50 B.C.

DISCHARGE PORT

4" 150# ANSI FLANGE

8X

.75 HOLES EQUALLY

SPACED ON A

7.50 B.C.

11.00 279

15.00 381

17.63 448

8X

.56

MOUNTING HOLE

AIR EXHAUST

1" NPT

SERVICE & OPERATING MANUAL

Original Instructions

1: PUMP SPECS2: INSTAL & OP3: EXP VIEW4: AIR END5: WET END6: OPTIONAL7: WARRANTY

Table of Contents

Questions and Answers

L
Linda StewartNov 23, 2025
Why is the diaphragm failing prematurely in my Sandpiper Signature Control Unit?
- P
  Pamela ThomasNov 23, 2025
  Premature diaphragm failure in your Sandpiper Control Unit could stem from several factors. Cavitation might be occurring, so enlarge the pipe diameter on the suction side of the pump. Excessive flooded suction pressure could also be the cause; move the pump closer to the product, raise it, or place it on top of the tank to reduce inlet pressure. Consider installing a back pressure device or adding an accumulation tank or pulsation dampener. Misapplication due to chemical or physical incompatibility is another possibility, so consult the Chemical Resistance Chart for compatibility with products, cleaners, temperature limitations, and lubrication. Lastly, incorrect, incorrectly installed, or worn diaphragm plates could be the issue. Check the Operating Manual to ensure the correct part and ...
D
David DunlapNov 26, 2025
What causes unbalanced cycling in a Sandpiper Signature and how to resolve it?
- W
  William MullenNov 27, 2025
  Unbalanced cycling in your Sandpiper Control Unit can be attributed to several factors. If there's excessive suction lift (exceeding 20’ of liquid), filling the chambers with liquid will prime the pump in most cases. An undersized suction line could be the issue, so ensure it meets or exceeds pump connections. If pumped fluid is found in the air exhaust muffler, disassemble the pump chambers and inspect for diaphragm rupture or a loose diaphragm plate assembly. Check for suction side air leakage or air in the product by visually inspecting all suction-side gaskets and pipe connections. An obstructed check valve could also be the cause; disassemble the wet end of the pump and manually dislodge any obstruction in the check valve pocket. Inspect check valves and seats for wear and proper sett...
J
Jason MunozDec 3, 2025
How to troubleshoot sluggish cycling in Sandpiper Control Unit?

Sandpiper Signature Series Specifications

General

Brand	Sandpiper
Model	Signature Series
Category	Control Unit
Language	English

Summary

Safety Information

Important Safety Precautions

Key safety instructions for pump operation, installation, and handling.

Cautionary Safety Notes

Notes on UV exposure, fastener checks, grounding, and material compatibility.

Hazardous Operation Warnings

Warnings for toxic fluids, PPE, exhaust safety, static prevention, and fastener integrity.

ATEX Safe Use Conditions

Conditions for safe operation of ATEX compliant pumps in explosive atmospheres.

Pump Performance Specifications

Elastomeric Fitted Performance

PTFE;Santoprene Fitted Performance

Performance Curve

Pump Operation Principles

AODD Pump Working Mechanism

Suction Stroke Process

Installation and Operation Guide

Recommended Installation Practices

Guidance on pump placement, suction line, and general installation steps.

Air Supply Requirements

Pump Priming and Air Inlet

Troubleshooting Pump Issues

Pump Cycles Once Troubleshooting

Steps to diagnose and resolve issues where the pump cycles only once.

Pump Not Operating Troubleshooting

Guidance for troubleshooting when the pump fails to operate or cycle.

Pump Priming and Flow Issues

Resolving problems related to the pump not priming or having no flow.

Sluggish Operation and Flow Problems

Addressing unsatisfactory pump performance, stalling, or sluggish flow.

Exhaust Leaks and Diaphragm Issues

Troubleshooting exhaust leaks, often indicating diaphragm or check valve problems.

Premature Diaphragm Failure Causes

Identifying causes and solutions for premature diaphragm failure.

Unbalanced Cycling Solutions

Methods for diagnosing and correcting unbalanced or erratic pump cycling.

Service and Repair Kits

Composite Repair Parts List

Air Distribution Valve Servicing

Air Distribution Valve Servicing Steps

Step-by-step instructions for servicing the pump's air distribution valve.

Pilot Valve Assembly Servicing

Pilot Valve Servicing Steps

Step-by-step instructions for servicing the pump's pilot valve assembly.

Diaphragm Servicing Procedures

Diaphragm Removal and Inspection

Procedures for removing, inspecting, and handling diaphragm assemblies.

Diaphragm Reassembly and Torquing

Guidance on reassembling diaphragms, plates, and proper torquing.

One-Piece Diaphragm Servicing

Specific servicing instructions for one-piece bonded PTFE diaphragms.

ATEX EU Declaration of Conformity

Applicable ATEX Standards

ATEX Hazardous Location Classifications

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