INSTALLATION, OPERATION, &
MAINTENANCE MANUAL
TITLE:
F84L Series Liquid Relief Valve
Rev. J
Page 2 of 18
TABLE OF CONTENTS
Topic
Page
1.0
General ............................................................................................. 3
2.0
Description, Operation, Service Envelope, Installation, & Startup
2.1
Description / Operation ..................................................................... 4
2.2
Service Envelope .............................................................................. 5
2.3
Installation ......................................................................................... 5
2.4
Startup .............................................................................................. 6
3.0 Valve Maintenance
3.1
Disassembly ...................................................................................... 7
3.2
Reassembly ...................................................................................... 7
4.0
Valve Testing and Adjustment
4.1
Test Equipment ................................................................................. 8
4.2
Setting / Adjustment Tolerances ....................................................... 8
4.3
Set Pressure Adjustment .................................................................. 9
4.4
Seat Tightness .................................................................................. 9
4.5
Lift Lever Operation .......................................................................... 10
5.0
Accessories................................................................ ....................... 11
6.0
Troubleshooting Guide .......................................... ........................... 12
Illustrations
F84L-2 Series “Micro” 2-PC Body Assembly (Threaded Bonnet) ................ 14
F84L-3 / -4 / -8 Series “C” Body Assembly (Bolted Bonnet, Std.) ................ 15
F84L-3 / -4 / -8 Series “X” Body Assembly (Bolted Bonnet, XL) ................. 16
F84L-3 / -4 Series “Z” Body Assembly (Bolted Bonnet, XXL) …………….. 17
F84L-G / -J Series “D” “E” “X” Body Assembly (Bolted Bonnet) .................. 18