Phone: 800-325-8999 Fax: 570-739-4424
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Phone: 800-325-8999 Fax: 570-739-4424
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Schedule 80 CPVC Solvent-Welded Pressure Rating vs. Service Temperature
P = 2St/D-t = 2S/DR-1 = P73ºFf P = Pressure rating of pipe at service temperature (psi) S = Hydrostatic design of stress (psi) D = Outside diameter of pipe (inches) t = Pipe wall thickness (inches) f = Derating factor for service temperature DR = Dimension ration (D/t) P73ºF = Pressure rating at 73ºF 1) Figures for pressure rating at 73ºF are rounded off from actual calculated values. Pressure ratings for other temperatures are calculated from 73ºF values. 2) Pressure rating values are for CPVC (23447-B) pipe and for most sizes are calculated from the experimentally determined long-term strength of CPVC extrusion compounds. Because molding compounds may differ in long-term strength and elevated temperature properties from pipe compounds, piping systems consisting of extruded pipe and molded fittings may have lower pressure ratings than those shown here, particularly at higher temperatures. Caution should be exercised when designing CPVC systems operating above 180ºF. 3) The pressure ratings given are for solvent-cemented systems. When adding valves, flanges or other components, the system must be derated to the rating of the lowest component. (Pressure ratings: molded or cut threads are rated at 50% of solvent-cemented systems; flanges and unions are 150 psi; for valves, see manufacturer's recommendations.) George Fisher Schedule 80 CPVC Price List. Prices subject to change without notice. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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