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B-701964-00 Rev. C
Performance Verification
3-3
Companion 1000/T Liquid Oxygen System Technical Manual
Figure 3-2: Placing Companion 1000/T Portable in Test Fixture
Unit Containing Liquid Oxygen at 22 psig (152 kPa):
Connect the test pressure gauge to
the oxygen outlet barbed fitting and set the flow control valve to the highest setting.
Place the Companion 1000/T in the portable test fixture (Figure 3-2).
3. Wet a finger with leak detector and lightly place it against the open end of the vent
tube located near the bottom of the unit. If bubbling occurs, refer to Section 5.9.2,
Service and Repair.
4. Use SNOOP liquid leak detector to test all fittings and connections. Verify that the
unit maintains 22 psig (152 kPa) pressure during the leak test.
5. With pressure remaining in the unit, place a small amount of SNOOP on the tip of
the Companion 1000/T fill connector. A small amount of leakage around the
poppet of the fill connector is acceptable, provided that the total leakage rate of the
unit is not greater than the NER.
6. Blow dry with compressed gas the fill connector poppet and the vent valve.
3.2.2
Pressure Hold Test
PROCEDURE
1. Set the flow control valve to 0 L/min (off).
2.
Warm, Empty Unit:
Use the pressurizing setup (Figure 3-1) to pressurize the
Companion 1000/T until the primary relief valve vents (approximately
22 psig/152 kPa). Close the vent valve and remove the pressurizing setup. Connect
the test pressure gauge to the oxygen outlet barbed fitting and set the flow control
valve to the highest setting. Record the pressure gauge reading and the time.
3. Set the flow control valve to 0 and remove the test pressure gauge from the oxygen
outlet.
Perform the Pressure Hold Test only on warm, empty Portable units.
Performing this test on Portable units containing liquid oxygen will yield
inaccurate results.
Summary of Contents for COMPANION 1000
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