ISO 19973-5:2015

Pneumatic fluid power — Assessment of component reliability by testing — Part 5: Non-return valves, shuttle valves, dual pressure valves (AND function), one-way adjustable flow control valves, quick-exhaust valves

ISO 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 ISO 19973-1. The methods specified in ISO 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 ISO 19973-5:2015, this variable is understood as a number of cycles.

ISO 19973-5:2015 also specifies test equipment and threshold levels for tests to assess the reliability of these pneumatic valves.

Edition	2015
Standard Part No	5
Published Date	2015
Published By	International Standardization Organisation
Page Count	18