Appendix A to Part 180 - Internal Self-closing Stop Valve Emergency Closure Test for Liquefied Compressed Gases
49:3.1.1.1.3.9.1.1.9 : Appendix A
Appendix A to Part 180 - Internal Self-closing Stop Valve Emergency
Closure Test for Liquefied Compressed Gases
1. In performing this test, all internal self-closing stop
valves must be opened. Each emergency discharge control remote
actuator (on-truck and off-truck) must be operated to ensure that
each internal self-closing stop valve's lever, piston, or other
valve indicator has moved to the closed position.
2. On pump-actuated pressure differential internal valves, the
three-way toggle valve handle or its cable attachment must be
activated to verify that the toggle handle moves to the closed
position.
[64 FR 28052, May 24, 1999, as amended at 67 FR 15744, Apr. 3,
2002]