The maximum recommended service temperature for pvc pressure pipe and fittings is 140 f 60 c.
Pvc dwv fittings pressure rating.
Swing joint general product cad drawings.
It is common for plumbers to use pvc 40 pipe for dwv applications.
This system is intended for pressure applications where the operating temperature will not exceed 140 degree fahrenheit.
Swing swivel joint details for standard sprinklers.
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.
Dwv parts look very similar to standard white schedule 40 pvc pipe and fittings.
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.
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.
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.
The chart below will illustrate the pressure derating of pvc as temperatures increase.
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.
Aluminum tubing allowable pressure allowable pressure for aluminum tubes.
If they are dwv pattern fittings thats another story.
Pvc schedule 40 dwv pipe fittings.
If it doesn t have nsf pw or pressure rating chances are it s dwv.
Pressure ratings of plastics.
The only real difference is that dwv pvc is not made to handle pressurized uses like schedule 40 parts are.
While they will hold some pressure think of a 10 story building head pressure they are not designed or warranted for pressure.
Pressure ratings pressure ratings of pipes and tubes and their fittings carbon steel stainless steel plastic copper and more.
Swing joint details for valve in head sprinklers.
Asme b31 9 working pressure and temperature limits the working pressure and temperature limits of asme code b31 9 building services piping.
1 1 2 2 and 3 12 inch trade sizes.
Dwv adapter dwv bends elbows dwv bushing.
Instead dwv pipe and fittings are made to handle a different class of uses drain waste and vent hence the name dwv.
Specification for poly vinyl chloride pvc plastic pipe schedule 40 80 and 120 scope.
10 foot or 20 foot overall lengths.
Fittings at high temperatures.
These de rating factors are assumed to be sustained elevated temperatures.
As the temperature of the pvc increases the pressure that the pvc can withstand will decrease.
