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SERVICE & OPERATING MANUAL
Original Instructions
Certified Quality
ISO 9001 Certified
ISO 14001 Certified
Warren Rupp, Inc.
A Unit of IDEX Corporation
800 N. Main St.,
Mansfield, Ohio 44902 USA
Telephone (419) 524.8388
Fax (419) 522.7867
WWW.SANDPIPERPUMP.COM
©2017 Warren Rupp, Inc.
Model ST1 & ST25
Containment Duty
Design Level 5
.
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s a n d p i p e r p u m p
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Table of Contents
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Summarization of Contents

Safety Information
General Warnings and Precautions
Covers crucial safety advisories, including operating hazards, maintenance precautions, and warnings about part usage.
Grounding ATEX Pumps
Guidelines for grounding ATEX compliant pumps in explosive atmospheres.
PUMP SPECS
Explanation of Pump Nomenclature
Explains how to interpret pump model numbers and specifications.
Performance
Details pump capacity, head, and performance curves.
Materials
Lists material profiles and their operating temperature limitations.
Dimensional Drawings
Provides detailed diagrams with pump dimensions in inches and millimeters.
INSTALLATION & OPERATION
Principle of Pump Operation
Explains the working mechanism of the air-operated double diaphragm pump.
Recommended Installation Guide
Covers pump placement, air supply, and initial start-up procedures.
Filling the Driver Chambers with Liquid
Step-by-step guide for filling pump driver chambers with necessary fluid.
Troubleshooting Guide
Lists common pump issues, potential causes, and recommended solutions.
EXPLODED VIEW
Composite Repair Parts Drawing
Illustrates the pump's components with a numbered exploded view diagram.
Composite Repair Parts List
Catalog of pump parts with part numbers, descriptions, and quantities.
Material Codes
Cross-references material codes with specific material descriptions used in pump construction.
AIR END
Air Distribution Valve Assembly
Details the air distribution valve, its components, and servicing instructions.
Pilot Valve Assembly
Describes the pilot valve assembly, its parts, and maintenance procedures.
WARRANTY & CERTIFICATES
5 - YEAR Limited Product Warranty
Outlines the terms and conditions of the five-year limited product warranty.
EC / EU Declaration of Conformity
Presents the manufacturer's declaration of conformity with EU directives and standards.

Table of Contents