Climax 96229, Руководство по эксплуатации

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P/N 98061, Rev. 2 Page 25
9. Turn the vessel diverter valve to upward.
10. Turn the gas supply pressure regulator clockwise while monitoring the test
pressure gauge, until it reaches the desired test pressure. Increase pressure
gradually.
4.5 R
ELEASING THE CLAMP
WARNING
Do not release the clamp pressure while the valves under test is
pressurized. Releasing valves under pressure could result in property
damage or personnel injury.
When all tests have been conducted or the valve needs to be adjusted, do the fol-
lowing to remove the test piece, referring to Figure 2-1 on page 10:
1. Rotate the gas supply pressure regulator and water supply pressure control
valves to zero.
2. Open the seal plate drain valve slowly to release all pressure from the sys-
tem and test piece.
3. Check that the test pressure and vessel pressure gauges show 0 psi/bar.
NOTICE
The TAT-SRV turn around tester for safety relief valves is equipped with
a safety interlock system to reduce the likelihood of releasing clamp
pressure from the valve under test while the test pressure circuit is
pressurized.
The interlock system is equipped with air cylinders under the clamp
drain valve that sense test pressure and pop up to prevent the clamp
drain valve from opening and releasing clamp pressure while the valve
under test is pressurized.
WARNING
The safety interlock is only a secondary measure to the correct
operating procedure. Some residual pressure (up to 20 psi [1.38 bar])
may remain in the valve under test when the safety interlock cylinders
disengage, which may cause a pressure release and personnel injury if
the clamp drain valve is opened.
Always remove test pressure, drain both test circuits, and check that
both the top and bottom pressure gauges read 0 psi/bar before opening
the clamp drain valve.