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
6.
Remove O-Ring or Gasket from Bonnet Assembly and discard.
7.
Remove Gate O-Ring with the plastic pick, taking care not to scratch the O-Ring groove.
Discard the O-Ring.
8.
Clean O-Ring groove with IPA and dry out with Nitrogen or CDA.
9.
Apply a light coat of Apezion L grease to the new Gate O-Ring. (It is very important
that gloves are worn for this step)
10.
Install new O-Ring on gate, taking care to avoid twisting or deforming the O-Ring.
11.
Apply a light coat of Apezion L grease to the new Bonnet assembly Viton O-Ring/
Copper Gasket. Install dry.
12.
Install new O-Ring/Gasket on Bonnet assembly, taking care to avoid twisting
or deforming the O-Ring.
13.
Replace Bonnet Actuator Assembly into valve body.
14.
Install bolts and tighten. (For MSB, Copper gasket type, tighten side to side 20-25 ft-lb)
Figure 2: GATE O-RING AND BONNET PLATE O-RING
BONNET PLATE O-RING
GATE ASSEMBLY O-RING
NOTE:
1. BE CAREFUL NOT TO
SCRATCH O-RING
GROOVE
2. APPLY ONLY THIN
LAYER OF GREASE
3. AVOID TWISTING,
STRETCHING OR
DEFORMING THE
O-RING