TM 55-1520-240-23-6
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TEST PRESSURE REDUCING VALVE (AVIM)
(Continued)
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22.
When pressure at gage (15) starts to rise, check
pressure at gage (12). Pressure shall be less
than 1630 psi. If reading is more than 1630 psi,
adjust end cap (13) for a reading below 1630 psi.
23.
If end cap (13) is adjusted, repeat steps 9 thru
22. All pressure readings must be obtained at
one setting of end cap.
24.
Close shutoff valve (8) to reduce pressure at
outlet port (3) to 0 psi.
MAXIMUM REGULATED PRESSURE TEST
25.
Open shutoff valve (10) and apply 3000 psi
pressure to INLET port (1).
26.
Adjust shutoff valve (11) for flow of 10 cc per
minute.
27.
Check pressure gage (12). Pressure gage shall
read less than 1500 psi. If reading is more than
1500 psi, adjust end cap (13) to obtain reading.
28.
If end cap (13) is adjusted, repeat steps 9 thru
28. All pressure readings must be obtained at
one setting of end cap.
29.
Reduce pressure at RETURN port (4) to 0 psi.
30.
Close shutoff valve (10) to reduce pressure at
INLET port (1) to 0 psi.
31.
Disconnect hoses (5, 6, and 7) from ports (1,
3 and 4).
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