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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?* L+ i4 p9 x. t A5 z- @- V
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" _ h* ~* E; M. r0 [27.2 One sample is to be subjected to 100,000 cycles of complete opening and closing of the valve.7 [% r6 j) h& e, w" C/ ?
When the construction incorporates an overpressure shutoff device that is in accordance with 14.1(b) and
3 \$ U" G2 `* @' bthat is activated by the regulator linkage mechanism, the sample is to be subjected to the number of
1 m: R$ ~; ^( k$ |' acycles and test conditions covered in 27.6. When the construction utilizes nonmetallic materials in the0 O$ r! D! Z- n! Y# V
linkage assembly a second sample is to be subjected to the test conditions specified in 27.5. |
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