... typeEn CapDOE, P2,P3, P7,P8 & 215, 225 Single & Double O RingsOperatingConditionsMaximum differential pressure37.5psi/ 2.5 bar at 120°CMaximum ... (225 + Close ) 1S5C (215+ Close ) CSS ( Install Stainless Steel ) D.O Ring S ( Silicon ) E (EPDM) V ( Viton ) N (NBR ) PV ...