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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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" C- y- D7 x7 B& Y27.2 One sample is to be subjected to 100,000 cycles of complete opening and closing of the valve., @0 ~, W! J }1 m5 B
When the construction incorporates an overpressure shutoff device that is in accordance with 14.1(b) and" A$ y- r# C. [" n& \" P% b
that is activated by the regulator linkage mechanism, the sample is to be subjected to the number of
9 b l( i: T# w! S; fcycles and test conditions covered in 27.6. When the construction utilizes nonmetallic materials in the6 J5 T) j$ t1 O
linkage assembly a second sample is to be subjected to the test conditions specified in 27.5. |
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发表于 2009-2-1 09:56:27
发表于 2009-2-1 12:35:07
楼主