Upvc Pressure Fittings Are Suitable For Irrigation; Portable Water Supply; Chemical Installation; Water Treatment; Swimming Pools And Foodstuff Industries. Fittings Can Be Used With Any Make Of Pipe Made To The Same International Standards Iso727; Din8063; Uni7442/75; Kiwa54; Nft54/028; Bs4361/1; And Bs21 For The Threaded Range Bsp. Working Pressure 16 Kg/Centimetre Square (227; 6 Psi) Pn16.