Sch 80 Pvc Pipe Pressure Rating

These ratings are based on a constant pressure.

Sch 80 pvc pipe pressure rating.

The speci fi ed derating factors for pvc are suitable for pipe conveying water at. All pvc schedule 80 pipe shall be manufactured from a type i grade i polyvinyl chloride pvc compound with a cell classification of 12454 per astm d1784. Schedule 80 pvc technical information schedule 80 pvc pipe dimensions pressure ratings made in the u s a. As the temperature of the pvc increases the pressure that the pvc can withstand will decrease.

Adjustments may be required for pressure variations. Astm d2467 04e1 standard specification for poly vinyl chloride pvc plastic pipe fittings schedule 80. Pressure de rating at elevated temperatures the pressure ratings above are for water at 73 degrees fahrenheit. The maximum operating pressures derates with temperature.

Unlike tensile strength burst pressure decreases as pipe size increases. To give you a thought of the size contrast 1 plan 40 pvc pipe has a 133 least divider and 450 psi while plan 80 has a 179 least divider and 630 psi. All compound components shall be listed with nsf and meet the requirements of nsf ansi standard 61 g as suitable for potable water and is considered lead free. The pressure rating is only for pipes.

Schedule 80 pvc technical information schedule 80 pvc pipe dimensions pressure ratings made in the u s a. This makes it perfect for mechanical and synthetic applications. However smaller sizes of pvc pipe especially schedule 80 can handle plenty of pressure for most home and business uses. Pvc pipe often gets a bad rap because it cannot handle as much pressure as various types of metal pipe.

The pressure ratings shown are based on astm d2241 sdr class and astm d1785 schedule 40 80 pipes. Maximum pvc service temperature 140 f pressure de rating at elevated temperatures the pressure ratings given above are for water non shock 73 f. Suitable for oil free air handling to 25 psi not for distribution of compressed air or gas page 336 due to material cost variations prices subject to change. To calculate elevated temperature rating use the following formula.

Minimum tensile strength 60 ksi 60000 psi. It is commonly recommended to limit these. Max pressure 73 x derating factor schedule 80 pipe pvc pipe operating temp f de rating factor 73 1 00 80 0 88 90 0 75 100 0 62 110 0 51 120 0 40 130 0 31 140. 1 psi lb in 2 6 894 8 pa n m 2 1 inch 25 4 mm.

Schedule 80 pipe nipple pressure rating has thicker dividers and can with stand higher psi pounds per square inch. Astm d2466 06 standard specification for poly vinyl chloride pvc plastic pipe fittings schedule 40. This table defines the maximum pressure rating for the specified industry standard pipes schedule 160 schedule 40 and schedule 80. Pvc cpvc molded fittings do not have a pressure rating.

The chart below will illustrate the pressure derating of pvc as temperatures increase.