Becker VRP-B-CH Series Valve Regulator Pilot Instruction Manual | 24
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600-CH Diaphragm Assembly
Insert - 012 O-ring (A) into the bottom piston (B). Insert the inner
tube (C) into the spring chamber (D). Insert the bottom piston
(B) into the diaphragm with convolute (E). Clamp the assembly
together by holding the bottom piston (B) in a vise while threading
1/2-20-inch SS jam nut (F) onto the bottom piston (B). Torque the
jam nut (F) to 140-160 in.-lbs.
Figure 6: Assembling the diaphragm
Figure 7: Connecting the pistons
600-CH Spring Chamber Assembly
Bolt the spring chamber (D) to the top body assembly (H) using six
(6) fiberglass washers (J) and six (6) 1/4-20 x 2-inch SHCS (K).
Figure 8: Bolting the spring chamber
600-CH Chamber Assemblies
600-CH Top Spacer Assembly
Orient Top Spacer (G) onto Top Body Assembly (H). Place dia-
phragm assembly onto Top Spacer (G). Making sure not to twist
Diaphragm (E), thread Bottom Piston (B) into Outside Piston (I) by
holding Spring Chamber (D), and rotating Inner Tube (C) clockwise.
Inner Tube (C) is rotated with same socket wrench used to hold the
Jam Nut (F) in the diaphragm assembly. When Inner Tube (C) can-
not be rotated any more do not force it, this assembly should only
be hand-tight.
