... -DN150 ( 3/4"- 6" ) Working Pressure: 10kg/cm2 150 psi PVC Swing Check Valve ( in Vertical or in Horizontal ) DIN, ANSI, JIS ... , Make Sure the Arrow Mark on the Top Side 1. PVC Check Valve DIN, ANSI, JIS, BS Standard DN20 ( 3/4 ... " ) - DN150 ( 6" ) EPDM Rubber. BSPT or NPT2. PVC Check Valve with Flange DIN, ANSI, JIS, BS Standard DN20 ...