Flow Safe F7000 SERIES User Manual

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High Performance Safety Relief Valves

F7000 / 8000 SERIES

PILOT-OPERATED

SAFETY RELIEF VALVE

INSTALLATION,

OPERATION, & MAINTENANCE MANUAL

Revision:

T

Date of Issue:

December 17, 2018

Approved by:

jwo

Engineering Projects Dir.

Table of Contents

Questions and Answers:

L
Laurie KellyAug 11, 2025
What to do if the Flow Safe F7000 Control Unit main valve leaks through the outlet?
- J
  James MosleyAug 11, 2025
  If the main valve of your Flow Safe Control Unit is leaking through the outlet, it could be due to damage or contamination on the piston seat, main valve nozzle, piston seal/sealing surface, or lower liner seal/sealing surface. Disassemble the valve, remove the piston and liner, and examine the seat, seals, and sealing surfaces under magnification. If damaged, replace with new parts; if contaminated, clean and reinstall. Alternatively, the dome might not be loading properly through the pilot.
J
Jennifer BrownAug 18, 2025
How to fix a Flow Safe Control Unit main valve that won't open?
- A
  Amanda AllenAug 19, 2025
  If the main valve on your Flow Safe Control Unit isn't opening, check if the pilot valve inlet tubing is plugged. Another cause could be contamination between the piston and liner. Also, the inlet or outlet line might be blocked. Disassemble valve and examine surfaces, clean or replace parts as necessary and clear blockage in a safe manner. The pilot valve itself could be plugged, so disassemble and clean the pilot assembly. Finally, increased set pressure due to an auxiliary setter could be the problem; add the auxiliary setter differential to the set pressure.

Flow Safe F7000 SERIES Specifications

General

Brand	Flow Safe
Model	F7000 SERIES
Category	Control Unit
Language	English

Summary

INSTALLATION

REMOTE SENSE AND FIELD TEST CONNECTION

STARTUP

MAIN VALVE MAINTENANCE

DISASSEMBLY OF THE MAIN VALVE

Step-by-step instructions for safely disassembling the main valve body and its components.

REASSEMBLY OF THE MAIN VALVE

F300 (DIAPHRAGM-STYLE) ASSEMBLY

F300 (PISTON-STYLE) ASSEMBLY

PILOT VALVE SET PRESSURE ADJUSTMENT

PRESSURE ADJUSTMENT AND VERIFICATION

Details the process for adjusting and verifying the set pressure of pilot valves.

TESTING OF PILOT ONLY

Instructions for testing and adjusting the pilot valve when removed from the main valve.

TESTING OF COMPLETE ASSEMBLY

F100 PILOT VALVE ADJUSTMENT

F200 PILOT VALVE ADJUSTMENT

F300 PILOT VALVE ADJUSTMENT

F500 PILOT VALVE ADJUSTMENT

PILOT AUXILIARY SETTER ADJUSTMENT

SUPPLEMENTAL TESTING AND ACCESSORIES

TESTING OF THE MAIN VALVE SUBASSEMBLY

FINAL ASSEMBLY TESTING

F300 PILOT VALVE PROPORTIONAL BAND ADJUSTMENT

INSERVICE TESTING WITH THE FIELD TEST CONNECTION

TROUBLESHOOTING GUIDE

SOFTGOODS KITS

PILOT VALVE SOFTGOODS

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