I. viton gate & bonnet o-ring – Nor-Cal Linear Gate Valve User Manual
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Nor-Cal Products, Inc., 1967 South Oregon St., Yreka, CA 96097 • Toll Free 800-824-4166 or 530-842-4457 • www.n-c.com
Rev. 1-2013
I. Viton Gate & Bonnet O-ring
STD AND MSB 1.5” - 21” GATE VALVES
A. Tools and Materials Required:
1. Allen Wrench for 1.5”—14” Gate Valves
2. 1/2” Box Wrench for 16”—21” Gate Valves
3. O-Ring Pick
4. Rubber Gloves
5. Grease – Apezion L O-Ring Type
6. IPA
B. Procedure: Always wear Rubber Gloves when handling the Gate Valve
1. Vent station and pump corresponding to Gate Valve to atmosphere.
2. Actuate valve to Gate Open position.
3. For safety, remove air to actuator.
4. Remove bolts that hold Bonnet Actuator Assembly to body,
or for Quick-Clamp Bonnet, undo the clamp.
5. Pull out the Bonnet Actuator Carriage Assembly,
taking care not to move adjustment of linkage.
(Continued Next Page)
VALVE BODY
GATE ASSEMBLY &
STRONGBACK
LOWER AND UPPER LINKAGE
BONNET PLATE ASSEMBLY
ACTUATOR ASSEMBLY
ACTUATOR TOP WITH SENSORS
(OPENCLOSED)
Figure 1 - BONNET ACTUATOR CARRIAGE ASSEMBLY
SEPARATED FROM VALVE BODY