CPVC Fitting female coupling is mainly used to connect the pipes with accessories, because screw is easy to connection and disconnection, when the accessories or equipment fail it will be easy to screw out and replace an new one. the� CPVC Pipe Fitting thread end is BSPT, and socket end is DIN, CPVC Pipe Fitting PN16 size from 20mm to 63mm. pressure rate PN16 bar. offer CPVC female coupling with following specifications: Size: D20mm to D63mm Standard: DIN Working pressure: 1.6Mpa(PN16 bar) Working temperature: 0C to 95C