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 TM 55-1905-223-24-18-1
Replace 4-Inch Three-Way Ball Valve.
2-309.
a. Removal, b. Replacement.
This task covers:
INITIAL SETUP
Equipment Condition
Tools
Piping system shut down.
Tool kit, general mechanic's,
Valve isolated from system,
reference TM 55-1905-223-10.
Torque wrench (30-300 ft-lb),
5120-01-125-5190
Materials/Parts
4-inch three-way ball valve
P/N MP-20-86165
Place a drip pan under ball valve (1).
a.
Remove nuts (2) and bolts (3) from flanges.
b.
NOTE
A chain hoist will be required to remove/
replace ball valve.
Remove ball valve.
c.
NOTE
A chain hoist will be required to remove/
replace ball valve.
a.
Install ball valve (1) and attach with bolts (3).
b.
Install nuts (2) and torque to 75 ft-lb (102 Nm).
Charge pipeline and check for leaks.
c.
Remove drip pan.
d.
Change 1
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