flanges connection: ANSI 125LB/150LB, DIN PN 10/16, BS PN10/16, type: single sphere, double sphere, CE, ISO 9000, ISO 14001 rubber: NR, EPDM, NBRsuitable temperature:NR: -15~115EPDM: -30~170NBR: -15~140flanges material: cast steel/stainless steelflanges connection standard:ANSI B16.5 125LB/150LBDIN 2576 PN10/16BS 4504 PN10/16DN40~DN600 rubber joint