250psi rated PVC pipe available?
250psi rated PVC pipe available?
(OP)
Hello,
I am looking for 12" PVC bell/spigot pipe for a fire main project. Pressure rating needs to be 250psi.
All I can find is C-900 and C-905 pipe which is rated for 200psi. The pressure rating only jumps to 250psi in 14" or larger diameter.
Anyone know of a vendor/manufacturer that has 12" PVC pipe available at the higher pressure rating?
Thanks.
I am looking for 12" PVC bell/spigot pipe for a fire main project. Pressure rating needs to be 250psi.
All I can find is C-900 and C-905 pipe which is rated for 200psi. The pressure rating only jumps to 250psi in 14" or larger diameter.
Anyone know of a vendor/manufacturer that has 12" PVC pipe available at the higher pressure rating?
Thanks.





RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
h2oman
RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
Is HDPE available in bell/spigot with at least 250psi rating? The HDPE that I've seen had to be "welded", which requires a little more equipment, good ambient conditions, and more time. Are thrust blocks still needed at bends?
The PVC bell/spigot pipe is gasketed and is just pushed together. Thrust blocks are needed, of course. Most of the existing fire mains at our complex are PVC bell/spigot and the only time we've had a problem with it is when too much pressurized pipe was exposed.
DIP has corrosion issues. Yes you can line it but lining isn't 100%. Also, this line will be close to another large diameter steel line that is coated and cathodically protected.
I did find out that ASTM D2241 pipe is available in DR17 and DR13.5 which is rated at 25opsi and 315psi, respectively. The couple of vendors I checked said delivery times were 3-6mo, however.
I think I'll stick with C-900 200CL DR14. It has a 2.5x safety factor and a surge capacity factor built in. System pressure usually runs around 180psi so I should be ok.
Thanks for the input guys.
RE: 250psi rated PVC pipe available?
Thrust blocks are required at fittings/sharp direction changes, but gradual bends can be done by the pipe itself--minimum bend radius is a function of pipe diameter and DR #, but for pretty heavy duty pipe (DR 9) is on the order of 20x the pipe OD.
I work in mining, we use tons of this stuff for pit dewatering, process applications, and fire water systems. I gave up on IP/DIP a few years ago and never looked back. One operation I worked at used bell/spigot PVC for well casing in the coal, but for any other piping used HDPE.
Check out: http://www.cpchem.com/performancepipe/literature/Field%20Handbook/PP%20901%20Field%20Handbook%20Feb.03.pdf
RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
RE: 250psi rated PVC pipe available?
I used it for directional boring applications before the HDPE became widespread. Yellowmine is also used routinely in mine shafts so I'm told.