ANSI/(NFPA)T3.20.8 R2-2000 (R2005)

Quick-action coupling - Pressure rating supplement to NFPA/T2.6.1 R1-1991, Fluid power systems and products -Method for verifying the fatigue and establishing the burst pressure ratings of the pressure containing envelope of a metal fluid power quick action coupling

This standard provides: test & statistical methods for generating fatigue-distribution data; test & statistical methods for verifying the pressure ratings of quick-action couplings; common requirements & an industry-wide philosophy for judging one type of pressure capability for quick-action couplings; uniform methods of product comparison. This standard limits conditions as follows: pressure-induced loadings of constant amplitude; pressure levels & pulse durations as defined in NFPA/T2.6.1 R1, clause 8; temperatures that range from the Charpy impact transition temperature to the threshold of creep sensitivity; environments which are chemically compatible with the materials in the pressure-containing envelope.