Is there a threaded joint in PVC pipe?
Pipe dope alone, while it can also make things slippery, at least conforms to the threads better with less pressure. Unfortunately the female threads are in the filter body itself.
Can a CPVC threaded pipe cause a leak?
Don’t use a CPVC female threaded adapter – ever. Cranking in a metal nipple puts a lot of stress on the plastic and your leak could be from a microscopic crack which may/will eventually split the adapter right off the nipple. There is a combination CPVC/brass adapter.
What’s the working pressure of a CPVC pipe?
Spears® CPVC CTS Pipe and Fittings conform to ASTM D 2846 Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Hot and Cold Water Distribution Systems. Working Pressure Spears® CPVC CTS Pipe and Fittings have a continuous working pressure rating of 100 psi at 180°F (400 psi at 73°F). Product Certification
What’s the proper way to install CPVC threads?
In a proper application of CPVC threads (which this was not), the manufacturer installation recommendations for CPVC threads is to hand tighten for no more than 1-2 turns beyond finger tight using a strap wrench.
Pipe dope alone, while it can also make things slippery, at least conforms to the threads better with less pressure. Unfortunately the female threads are in the filter body itself.
Don’t use a CPVC female threaded adapter – ever. Cranking in a metal nipple puts a lot of stress on the plastic and your leak could be from a microscopic crack which may/will eventually split the adapter right off the nipple. There is a combination CPVC/brass adapter.
How to seal a threaded brass to CPVC connection?
I have CPVC pipes. The shower valve is threaded brass (male). I tried using a fitting similar to this (glue on CPVC on one end, threaded brass on the other): I gave the shower fitting several wraps with teflon tape, wrapping the threads against the direction of rotation.
In a proper application of CPVC threads (which this was not), the manufacturer installation recommendations for CPVC threads is to hand tighten for no more than 1-2 turns beyond finger tight using a strap wrench.
