Pvc Dwv Fittings Pressure Rating

1 1 2 2 and 3 12 inch trade sizes.

Pvc dwv fittings pressure rating.

Swing joint details for valve in head sprinklers. Iron pipe size ips pvc cpvc pressure pipe and drainage waste vent dwv pipe forms one of the most widely used sizing classifications including schedule 40 80 120 pipe and class pipe in various standard dimension ratios sdr. Swing swivel joint details for standard sprinklers. The pipe may also have dwv written on it as long as the pipe has a pressure rating e g 300psi 73f you re okay.

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. Fittings at high temperatures. Dwv parts look very similar to standard white schedule 40 pvc pipe and fittings. The only real difference is that dwv pvc is not made to handle pressurized uses like schedule 40 parts are.

This specification covers pvc pipe in schedule 40 80 and 120 for pressure applications. If they are dwv pattern fittings thats another story. De rating f c factor 73 23 1 00 80 27 0 88 90 32 0 75 100 37 0 62 110 43 0 50 120 49 0 40. Swing joint general product cad drawings.

It is common for plumbers to use pvc 40 pipe for dwv applications. You can also identify pressure rated or dwv fittings and pipe by their as number written on them but it s not essential to learn. These de rating factors are assumed to be sustained elevated temperatures. Aluminum tubing allowable pressure allowable pressure for aluminum tubes.

10 foot or 20 foot overall lengths. Pressure ratings pressure ratings of pipes and tubes and their fittings carbon steel stainless steel plastic copper and more. Instead dwv pipe and fittings are made to handle a different class of uses drain waste and vent hence the name dwv. Pvc schedule 40 pressure dwv pipe drain waste and vent.

Pressure ratings of plastics. Dwv adapter dwv bends elbows dwv bushing. Pvc schedule 40 dwv pipe fittings. The chart below will illustrate the pressure derating of pvc as temperatures increase.

This system is intended for pressure applications where the operating temperature will not exceed 140 degree fahrenheit. If it doesn t have nsf pw or pressure rating chances are it s dwv. Specification for poly vinyl chloride pvc plastic pipe schedule 40 80 and 120 scope. Asme b31 9 working pressure and temperature limits the working pressure and temperature limits of asme code b31 9 building services piping.

The maximum recommended service temperature for pvc pressure pipe and fittings is 140 f 60 c.