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在UL 144中写到activated by the regulator linkage mechanism请问这是一种什么类型的调压器?
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27.2 One sample is to be subjected to 100,000 cycles of complete opening and closing of the valve.
3 E8 t- n7 V9 `( ^When the construction incorporates an overpressure shutoff device that is in accordance with 14.1(b) and! a c! U% D+ D+ l3 D+ w: N# }
that is activated by the regulator linkage mechanism, the sample is to be subjected to the number of5 E L' B8 T3 x2 u$ A3 [4 p
cycles and test conditions covered in 27.6. When the construction utilizes nonmetallic materials in the4 ]7 Z+ x7 ]3 S$ e% {9 ~& \
linkage assembly a second sample is to be subjected to the test conditions specified in 27.5. |
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