1.1 This standard provides:
- test procedures for conducting a verification of the fatigue and establishment of burst pressure ratings on pressure switch envelopes;
- test and statistical methods for generating fatigue distribution data;
- common requirements and an industry wide philosophy in judging one type of pressure capability for fluid power pressure switches;
- Uniform methods of product comparison.
1.2 This standard limits conditions as follows:
- constant amplitude, pressure induced loading of the elements that constitute or maintain the pressure containing envelope;
- product life of at least 100,000 cycles;
- defined conditions for pressure levels and pulse durations;
- temperatures from the charpy impact transition temperature to the threshold of creep sensitivity;
- environments which are chemically compatible with the materials of the pressure containing envelope;
- materials that are aluminum, magnesium, steel, iron, copper based alloys, cobalt, titanium, stainless steels, nickel steels and Monel. Specifically excluded are creep sensitive materials such as: zinc, plastic, rubber, and sealing devices.
1.3 This standard does not include functional performance of a pressure switch, nor the ability to maintain a set point, when either the rated fatigue pressure or the rated burst pressure has been applied to the pressure containing envelope.
| Edition : | 3rd |
| File Size : | 1
file
, 180 KB |
| Number of Pages : | 8 |
| Published : | 03/15/2000 |
