This is a question we receive frequently at pexhouse.com and the short answer is that Wirsbo IS PEX! PEX is slang for “Crosslinked Polyethylene”, a popular type of plastic material used for plumbing and heating pipes all over the world. Wirsbo is simply one of many brand names of PEX in the marketplace.

Can expandable PEX be crimped?

You can install PEX water systems in two ways, namely: PEX Crimp Fittings (ASTM F1807 or F2159 – Crimp) Expansion PEX Fittings (ASTM F1960 – Expansion)

Did uponor buy wirsbo?

Uponor enters the plastic hot water pipe business by acquiring the German company Hewing and the Swedish company Wirsbo.