Over deze norm
||Hydrauliek en pneumatiek
NEN-ISO 19973-5 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, this variable is understood as a number of cycles. This part of ISO 19973 also specifies test equipment and threshold levels for tests to assess the reliability of these pneumatic valves.
||Pneumatiek - Beoordeling van de betrouwbaarheid van componenten door beproeven - Deel 5: Terugslagkleppen, wisselkleppen, dubbele drukkleppen, eenrichtings instelbare stroomregelkleppen, snelle ontlastkleppen.
||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