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?* Y" g4 }2 V' F: M& m
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27.2 One sample is to be subjected to 100,000 cycles of complete opening and closing of the valve.9 ~8 f2 u: d+ Q f. T( U z
When the construction incorporates an overpressure shutoff device that is in accordance with 14.1(b) and5 ^4 H& C3 l8 i6 J% V0 q. N
that is activated by the regulator linkage mechanism, the sample is to be subjected to the number of - R% i4 H% T% O7 ?# Jcycles and test conditions covered in 27.6. When the construction utilizes nonmetallic materials in the U) Q5 ]1 r) U$ ~
linkage assembly a second sample is to be subjected to the test conditions specified in 27.5.
发表于 2009-2-1 09:56:27
发表于 2009-2-1 12:35:07
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