Pipes & Fittings

Pipe & Fittings

Searching for just the right fittings can be a real hassle -- driving from store to store, order minimums, etc. -- but we here at PlumbingSupply.com® have thousands of fittings to choose from, and even offer some very hard to find styles, making those frustrations a thing of the past. Just take a look at all that we have to offer, and if you can't find what you need, please email us, and our Customer Service Specialists will happily assist you.

FAQs
Why shouldn't I use PTFE thread sealing tape or pipe joint compound on my flare threads?
聚四氟乙烯胶带和管接头复合(也被称为“pipe dope") should only be used on "IPS" ("iron pipe size") threads, which are normal pipe threads. IPS threads make their seal along the threads themselves; when a piece of IPS-threaded pipe is screwed into a fitting, PTFE tape and/or pipe dope is used to assist that seal on the threads. Flare fittings, on the other hand, seal on the beveled ends of the fittings, and so using pipe dope or tape on flare threads could actually prevent the fittings from making an adequate seal.
I'm hearing a lot about lead-free these days. What does that have to do with plumbing products and how does the new lead-free legislation affect me?
Basically, the laws implemented Jan. 1st, 2014 require plumbing products that come in contact with drinking water to be "essentially lead free" (less than 0.25% weighted average). For further information about how the law determines what is "lead free", rules regarding which plumbing products must be "lead free", and who these laws will affect, please click here.
Will IPS-sized fittings work with NPT pipe thread?
Yes. Many companies and individuals use the abbreviation IPS which normally refers to iron pipe size. When we use the term 'IPS-sized', or either Mips (male) or Fips (female), we are referring to pipes with NPT threads. NPT is the abbreviation for National Pipe Thread Tapered which is the thread standard used in the United States for galvanized, black, brass, stainless steel, PVC, ABS or other materials to connect pipes and fittings in plumbing. We offer more detailed information about NPT pipe threads here.
Is there lead in copper pipe?
Copper pipe is 100% copper and does not contain lead.
Will these CPVC fittings glue onto regular PVC piping?
The CPVC fittings we offer will not glue on PVC schedule 40 pipe. The CPVC fittings we offer are Copper Tube Sized (CTS) and normal Schedule 40 PVC pipes are sized according to IPS (iron pipe size) standards which are slightly larger in diameter. CTS sized piping has the same outside diameter as copper piping. 1/2" CPVC fittings fit CPVC piping that is 5/8" O.D.. 1/2" Schedule 40 PVC fittings fit PVC piping that is 27/32" O.D.
Do I have to do anything special when I'm gluing a PVC valve?
Before installation, make sure the valve is in the "open" position and all cemented surfaces are clean and dry. Install the valve following the established solvent procedure. A suitable support should be placed under the valve body to hold the weight of the valve. Be sure to adhere to proper curing times, and wipe off any excess cement that might have accumulated at the joint bead.