品牌:Tianhai
规格:DN50-DN500
发货:3天内
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TYPE型号: TH022
Name:名称 Double ball air release valve-typical type双口排气阀
Size通径大小: DN50-DN200
Class压力等级: PN10/PN16, Cl125/ CL150;
Design设计标准： EN1074-4;
END FLANGE法兰设计标准: EN1092-2; ASME B16.1/16.42, AS4087;
TESTS测试标准: EN12266;
Body阀体材质: cast iron/ ductile iron灰铸铁/球墨铸铁;
Ball material球材质: EPDM+stainless steel EPDM+不锈钢 ;
Bolts:C45E/1045/ 304 stainless steel;
Disc: EPDM+GGG50;
Holding ring: CuZn39Pb1