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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?, f& h) Q! [" b" |, [9 l% f% }" N* k0 C
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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 L# S: M* a+ d/ ^When the construction incorporates an overpressure shutoff device that is in accordance with 14.1(b) and4 M- J3 M' I) O) f% p4 W
that is activated by the regulator linkage mechanism, the sample is to be subjected to the number of0 k" O1 C8 I" P" z3 Z. [
cycles and test conditions covered in 27.6. When the construction utilizes nonmetallic materials in the
0 S; s, ~1 m: ^) n3 @linkage assembly a second sample is to be subjected to the test conditions specified in 27.5. |
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