ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
2. Install the new product relief valve as follows:
a. Position the new relief valve with the spring pointing upstream toward the fixed pipe and
the disk pointing downstream toward the removable elbow pipe.
b. Secure the fixed pipe, the new relief valve, the gasket, and the elbow pipe together using
the sanitary clamp.
Product Vacuum Breaker VB-501 Replacement:
Parts (TM 10-4610-309-24P):
Product Vacuum Breaker VB-501
1-1/2 in. Sanitary Clamp Gasket
Equipment Condition:
TWPS in Standby Shutdown Without Draining Down
Army: TWPS main breaker off
Marine Corps: TWPS disconnected from power source
Replace Product Vacuum Breaker VB-501 as follows:
WARNING
The TWPS must be in Shutdown and the TQG and TWPS main breaker must be off
(Army) or the TWPS disconnected from its power source (Marine Corps) prior to
removing or installing Vacuum Breaker VB-501. Failure to observe this warning
can result in injury or damage to equipment.
1. Remove Product Vacuum Breaker VB-501as follows (see Figure 10):
a. Open Product Utility Valve V-511 to drain the product line, then close the valve.
b. Remove the sanitary clamp that secures Product Vacuum Breaker VB-501 between the
fixed pipe and the removable pipe.
c. Remove the removable pipe.
d. Discard the vacuum breaker.
e. Inspect the sanitary clamp gasket for damage or deterioration and replace if needed.
SANITARY CLAMP
FIXED PIPE
PRODUCT UTILITY VALVE V-511
VACUUM BREAKER
GASKET
REMOVABLE PIPE
Figure 10. Product Vacuum Breaker VB-501 Replacement.
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