Top Body Diaphragm Assembly; Bottom Body Diaphragm Assembly - GE Becker VRP-SB-PID Series Instruction Manual

Natural gas controllers
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Top Body Diaphragm Assembly

(Figure 8)
Step 18: Slide one grooved Washer (Q) onto both the Outside
Piston (J) and Top Inside Piston (M), with the grooves facing away
from the Top Body (G).
P
Step 19: Install a Convoluted Diaphragm (R), onto each Washer (Q).
Step 20: Install another Washer (Q) onto each Piston (J, M) with
R
grooves facing the Diaphragms (R).
Step 21: Finish by threading a 1/2-20 SS Hex Jam Nut (P) onto each
Piston (J, M). Torque to 140-160 in.-lbs.
P4
G
Q
R
P
P
R
P4
G
Q
R
P
31 | GE Oil & Gas
Q
Convolute
Up
Q
P3
Convolute
Down
Q
Q
Convolute
Up
Q
P3
Convolute
Down
Q
Figure 8

Bottom Body Diaphragm Assembly

(Figure 9)
Step 22: Slide one grooved Washer (Q) onto both the Outside
Piston (J) and Bottom Inside Piston (O), with the grooves facing
away from the Bottom Body (H).
Step 23: Install one Convoluted Diaphragm (R), oriented as shown
in Figure 9, onto each Washer (Q).
Step 24: Install another Washer (Q) onto each Piston (J, M) with
grooves facing the Diaphragms (R).
Step 25
: Thread the Aluminum Special Lat Nut (S) onto the
(1)
Bottom Inside Piston (O).
Step 26
: This assembly can be finished in three ways:
(1)
A. For a VRP-SB-PID-40, thread another 1/2-20 SS Hex Jam Nut
(P) onto the Outside Piston (J).
B. For a VRP-SB-PID-80, thread a SS Spring Nut (T) onto the
Outside Piston (J).
C. For a VRP-SB-PID-125, thread an Aluminum Spring Nut (U) onto
the Outside Piston (J).
(1)
Torque Nuts in Steps 25 and 26 to 140-160 in.-lbs.
Q
R
P1
R
P
Q
R
© 2016 General Electric Company. All rights reserved.
P1
S
Convolute
Up
Q
H
P2
Q
Convolute
Down
Q
Nut
Orientation
U
T
Figure 9
S
Convolute
Up
Q
H

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