... Sell to Europe,Africa,South America. 4.EPDM seat ISO9001 Cast Iron Gate Valve Specification:1. Size: 1-1/2”-24” (DN40-DN600 ... BS EN 1092(PN10, PN16), DIN 2501(PN10, PN16), BS 10 Table E4. Disc: Grey iron, Ductile iron, with or without EPDM5. Seat ... BushingPTFE"O" ringNBR, PTFELevelMalleable iron, Carbon steelContact: Ms. Annie Tel: +86-311-85520268/9, Fax: +86-311-85520266 ISO9001 Cast Iron Gate Valve