Groth 1402 - Manual (Page 5)

1402revb.doc 4
At tank pressure less than 80% of set
pressure, upper dome pressure should be
about equal to tank pressure and the vent
should be bubble tight. Minimal leakage
may occur between 80% and 90% of set
pressure.
At set pressure, the upper dome pressure
should be less than 50% of set pressure
and the vent should be flowing freely.
At 110% of set pressure, the lower dome
pressure should be greater than 75% of
set pressure, the upper dome should be
less than 10% and the vent should show no
leakage. The vent should be bubble tight
above 110% of set pressure.
Figure 2
When all conditions have been met, install
the pilot on the valve by connecting the
tubing to the sense, upper dome and
lower dome ports. When pressure is
applied to the valve, test all connections
with a soap solution.
# DESCRIPTION MATL
1 Cap, Adjustment Screw 316
2 Screw, Adjustment 316
3 Nut, Jam 316
4 Bonnet, spring 316
5 Button, spring 316
6 Spring 316
7 Vent Aluminum
8 Bolt, hex 316
9 Button, spring 316
10 Plate, retainer 316
11 Body 316
12 Spool 316
13 Seat insert 316
14 O-Ring Elastomer
15 O-Ring Elastomer
16 Seat
316
17 Rod, actuator HDPE
18 Rivet, pop 316
19 Plate, diaphragm 316
20 Bolt, hex 316
21 Actuator housing, upper 316
22 Bolt, hex 316
23 Nut, hex 316
24 Washer, lock 316
25 Gasket FEP
26 Diaphragm FEP
27 Actuator
housing, lower 316
28 Elbow, male 316
29 Washer, flat 316
30 O-Ring Elastomer
31 Connector,
male 316
32 Nut, jam 316
33 Spacer, diaphragm Nylon
 = Included in Soft Goods Kit
Elastomer Soft Goods Kit
Buna-N K1402BP
EPR K1402EP
FFKM K1402KP
Fluoropolymer K1402VP