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ϲʿ 19973-5:2015 provides test procedures for assessing the reliability of the following types of pneumatic valves:
? non-return (check) valves;
? pilot-operated non-return valves;
? shuttle valves;
? dual pressure valves (AND function);
? one-way adjustable flow control valves;
? quick-exhaust valves
by testing and the methods of reporting the results of testing. General test conditions and the calculation method are provided in ϲʿ 19973‑1. The methods specified in ϲʿ 19973‑1 apply to the first failure, as obtained with the three-points moving average (3PMA) method, without repairs, but excluding outliers.
The lifetime of these pneumatic valves is usually given as a number of cycles. Therefore, whenever the term "time" is used in this part of ϲʿ 19973-5:2015, this variable is understood as a number of cycles.
ϲʿ 19973-5:2015 also specifies test equipment and threshold levels for tests to assess the reliability of these pneumatic valves.
Cycle de vie
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Actuellement
ʳܲéϲʿ 19973-5:2015
Les normes ϲʿ sont réexaminées tous les cinq ans
Stade: 90.60 (En cours d'examen)
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