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3-29.2
Maximum Test Pressures - Cont'd.
b.
Fabric Collapsible Tanks. No pressure is allowed other than static liquid head. Make sure tank vent is open and
clear. The tanks may be filled to approximately 85 percent design capacity, with fuel. All inlet and outlet valves must be
closed and blanked off. Hold for 8 hours. If any leaks develop, the tank must be emptied and repaired, tank refilled and
held for another 8 hours test.
c.
Pump Suction Hose. If a section connecting a suction hose is being tested to higher pressure, this hose must be
blanked off and tested separately.
Test pressure:
With water
100 psig
With fuel
100 psig
With air
50 psig
d.
Four (4) inch and smaller discharge hose, valves and fittings.
Test pressure:
With water
150 psig
With fuel
150 psig
With air
50 psig
e.
Six (6) inch pump discharge and transfer hose, valves and fittings.
Test pressure:
With water
150 psig
With fuel
150 psig
With air
50 psig
3-29.3
Test Pressure Source. Test pressure can be supplied from any source capable of holding the specified test
pressures. The 600 gpm hoseline pump is suitable for testing with water or fuel if a special test pump is not available.
Although compressed air is an adequate test medium, the TPT, NSN 3835-01 182-1976, does not supply an air
compressor.
3-29.4
Preparations for Testing. Before the test is begun, actions should be taken to insure that the test runs
smoothly.
a.
Test all communications equipment. Good communications are required during testing operation.
b.
Check the accuracy of all pressure gages.
c.
Be certain that there are sufficient gaskets, repair clamps, etc. available.
d.
Locate fire suppression equipment near the testing area, and be sure that it is in operating condition (when
testing with fuel).
e.
Make sure to have a tank vehicle and drums available, in case a section has to be drained (when testing with
fuel).
f.
See that shovels and materials to dig and line a pit are at the test site in case there is a break and spill (when
testing with fuel).
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