Which of the following statement(s)is (are)true about cylinder valves?
1)Diaphragm valves can withstand pressure greater than 1500 psig.
2)Direct-acting valves are used for pressure less than 1500 psig.
3)Diaphragm valves should be used with flammable gases.
4)Leakage cannot occur with direct-acting valves.

Question

Quizplus · Accepted Answer

Diaphragm valves can withstand pressures less than 1500 psig and should be used with flammable gases because they do not allow leaks.A direct-acting valve contains two washers and a Teflon packing to prevent gas leakage around the threads.

Which of the Following Statement(s)is (Are)true About Cylinder Valves