Pvc Fittings Pressure Rating

Polyvinyl chloride pvc schedule 40 pressure fittings are used for potable water chilled water irrigation golf course construction and pool spa applications. Australian standards for pvc pressure pipes cover composition dimensions performance and marking requirements for pipes fittings and joints. Pvc is one of the thermoplastic materials most frequently specified for a variety of products used in the pipe and fittings industry.

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Pipes are designated by their nominal size dn and their nominal pressure rating or class at 20 c pn.

Pvc fittings pressure rating.

Astm d2467 04e1 standard specification for poly vinyl chloride pvc plastic pipe fittings schedule 80. Pvc schedule 40 pressure fittings. The pressure rating is printed on plumbing pvc pipe. Specification for poly vinyl chloride pvc plastic pipe schedule 40 80 and 120 scope.

1 psi lb in2 6 894 8 pa n m2 1 inch 25 4 mm. Pressure 73 f pressure 73 f pressure rating for pvc schedule 80 unions one of the more complex questions in the plastic pipe and fittings industry is associated with the pressure rating of fit tings used in pvc schedule 40 and pvc schedule 80 systems. This specification covers pvc pipe in schedule 40 80 and 120 for pressure applications. This system is intended for pressure applications where the operating temperature will not exceed 140 f.

Pvc pressure pipe standards. For pvc fitting schedule 40 and pvc fittings schedule 80 the optimal temperature at which pvc can operate at the highest psi would be 73 degrees fahrenheit. Wall thickness another difference that you ll find between pvc pipe and pvc conduit is in the thickness of the wall of the pipe. To determine elevated temperature rating multiply 73 f 23 c pressure rating by appropriate factor shown in the tables.

Be aware that schedule 40 pvc pipe does have a lower pressure rating therefore using schedule 40 parts on a primarily schedule 80 pipe system is not recommended. Pvc 10030 3 x 20 0397910003 500 300 370 psi 194 2 pvc 10040 4 x 20 039801140 4 500 337 320 psi 279 3 pvc 10050 5 x 20 04831760 5 563 375 290 psi 387 3 pvc 10060 6 x 20 03981520 6 625 432 280 psi 532 7 pvc 10080 8 x 20 04175300 8 625 500 250 psi 808 9. Schedule 40 and schedule 80 pvc pipe and fittings have identical od outer diameters and can be used interchangeably if needed. Pvc conduit isn t approved to use in plumbing applications because it isn t pressure tested making the chances of leaking higher.

Pvc schedule 40 pipe fittings. Australian standards generally cover more than one size range with different outside diameters. While these fittings are used in pressure systems strictly. The speciﬁ ed derating factors for pvc or for cpvc are suit able for pipe conveying water at elevated temperatures.

As the temperature of the pvc increases the pressure that the pvc can withstand will decrease. The chart below will illustrate the pressure derating of pvc as temperatures increase. The maximum operating pressures derates with temperature. The pressure ratings given are for water non shock 73 f.