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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?4 g/ T8 @8 _, a6 x0 T
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/ l+ t$ c" v u; S27.2 One sample is to be subjected to 100,000 cycles of complete opening and closing of the valve.
+ K, ?! ^2 H, D- d6 |+ ~/ q P1 uWhen the construction incorporates an overpressure shutoff device that is in accordance with 14.1(b) and) R6 j( P$ c' v4 x3 I* g2 D
that is activated by the regulator linkage mechanism, the sample is to be subjected to the number of' y/ ~8 T/ |* z2 z
cycles and test conditions covered in 27.6. When the construction utilizes nonmetallic materials in the( T, R' L( P6 T; W5 k
linkage assembly a second sample is to be subjected to the test conditions specified in 27.5. |
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