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HIGH PRESSURE MOTOR VALVES REPAIR MANUAL
PISTON BALANCED ASSEMBLY
KIMRAY SEAT WRENCH W SERIES
PART NUMBER LINE SIZE
386SW 3" & 4" HPMVPB
Note: Seat Wrench W Series are mainly used for Treater
Valves, but they can be used to assemble the Diaphragm
Nut for 3" and 4" High Pressure Motor Valves.
Figure A
STEP 1
SEAT
Grease the seat surface inside the Body
(Figure 1.1)
Insert O-Ring on Seat and place it in Body
(Fig. 1.2)
STEP 2
PISTON ASSEMBLY
Insert O-Ring inside Piston Assembly
(Fig. 2.1)
Figure 1.1 Figure 1.2
Insert O-Ring in Ratio Plug (Fig. 2.2)
Figure 2.1 Figure 2.2
Insert O-Ring with the angled side on top
(Fig. 2.3 and 2.4)
Figure 2.3 Figure 2.4
Insert Ratio Plug in the Piston Assembly
(Fig. 2.5)
Finger tighten the screw holding the Ratio
Plug on Piston Assembly (Fig. 2.6)
Figure 2.5 Figure 2.6
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