NFPA/T2.6.1 R2-2001 (R2024)

Fluid power components - Method for verifying the fatigue and establishing the burst pressure ratings of the pressure containing envelope of a metal fluid power component

This standard provides: test and statistical methods for generating fatigue distribution data; test and statistical methods for conducting a verification of the pressure ratings on fluid power components; common requirements and an industry-wide philosophy in judging one type of pressure capability for fluid power components; uniform methods of product comparison. 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 contining 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. This standard encourages manufactureers to use this common method to enhance the credibility of their pressure ratings.