PPR Union
In PPR (Polypropylene Random Copolymer) pipe systems, a PPR union is a particular kind of plumbing fitting. It is made to join two PPR pipes together and make the piping system disassemble and reassembly simple.
Two union nuts plus a center piece make up the three components of the PPR union. Each union nut has a threaded end that attaches to the central piece and a socket end that may be used to insert a PPR pipe. By removing the union nuts, the center piece, which has a smooth bore that permits fluid to flow freely, can be taken out.
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