ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
GENERAL MAINTENANCE
4. Install the new valve body as follows (see Figure 5):
a. Make sure that the new valve body is in the open position with the valve handle in-line
with the pipeline. This prevents the ball from protruding out of the body and scoring the
body connectors when the body is being installed.
NOTE
Make sure that the lubricant used is compatible with the pipeline media.
b. Apply a little valve seal lubricant to the seats and seals.
c. Slightly pull the body connectors apart to get the body assembly in position and to avoid
damaging the seats, seals and sealing faces.
d. Center the body, install the bolts and nuts and tighten them diagonally and evenly.
e. Check the valve for leaks, tightness and proper operation.
Threaded Ball Valve Replacement:
Parts (TM 10-4610-309-24P):
MF strainer drain valve V-109
MF strainer vent/sample valve V-110
MF vent valve V-114
MF filtrate drain valve V-203
MF filtrate sample valve V-204
MF shell drain valve V-403
RO feed tank auxiliary drain valve V-210
Strainer S-4 drain valve V-213
HP pump inlet drain valve V-214
HP pump case drain valve V-215
HP pump outlet drain valve V-301
RO feed pump drain valve V-211
Materials:
Clean, dry, lint-free rags (WP 0079, Table 1, item 33)
Antiseize tape (WP 0079, Table 1, item 43, 44)
Equipment Condition:
TWPS in Standby Shutdown with Drain-Down
Replace any of the threaded ball valves listed below as follows:
- MF System: V-109, V-110, V-114, V-203, V-204, V-403
- RO System: V-210
- Strainer S-4 Drain Valve V-213
- HP Pump Inlet Drain Valve V-214
- HP Pump Case Drain Valve V-215
- HP Pump Outlet Drain Valve V-301
- RO Feed Pump Drain Valve V-211
1. Make sure the TWPS is in Standby Shutdown with Drain-Down. Refer to WP 0017.
2. Remove the threaded ball valve from the pipe line as follows (see Figure 6):
a. Make sure that the valve is in the open position with the valve handle in-line with the
pipeline. This prevents the ball from protruding out of the body and scoring the body
connectors if the body is removed first.
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