Pvc Dwv Fittings Pressure Rating

1 1 2 2 and 3 12 inch trade sizes.

Pvc dwv fittings pressure rating.

10 foot or 20 foot overall lengths. This system is intended for pressure applications where the operating temperature will not exceed 140 degree fahrenheit. Pressure ratings of plastics. Dwv parts look very similar to standard white schedule 40 pvc pipe and fittings.

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. Asme b31 9 working pressure and temperature limits the working pressure and temperature limits of asme code b31 9 building services piping. Specification for poly vinyl chloride pvc plastic pipe schedule 40 80 and 120 scope.

Pvc schedule 40 dwv pipe fittings. As the temperature of the pvc increases the pressure that the pvc can withstand will decrease. This specification covers pvc pipe in schedule 40 80 and 120 for pressure applications. Pressure ratings pressure ratings of pipes and tubes and their fittings carbon steel stainless steel plastic copper and more.

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. While they will hold some pressure think of a 10 story building head pressure they are not designed or warranted for pressure. If they are dwv pattern fittings thats another story. Many manufacturer s make dual mark pipe for both pressure and dwv applications.

Fittings at high temperatures. Instead dwv pipe and fittings are made to handle a different class of uses drain waste and vent hence the name dwv. Swing joint general product cad drawings. Dwv adapter dwv bends elbows dwv bushing.

If it doesn t have nsf pw or pressure rating chances are it s dwv. Aluminum tubing allowable pressure allowable pressure for aluminum tubes. The chart below will illustrate the pressure derating of pvc as temperatures increase. The maximum recommended service temperature for pvc pressure pipe and fittings is 140 f 60 c.

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. It is common for plumbers to use pvc 40 pipe for dwv applications. 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 only real difference is that dwv pvc is not made to handle pressurized uses like schedule 40 parts are.