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苏州纽威阀门股份有限公司 -凯发k8国际|首页

产品简介

bellow seal valves are normally installed in working conditions that have strict emission requirements. possible leakage arising from stem movement is eliminated by mounting a metal bellow between the bonnet and the stem.  the bellow can follow the lineair movement of the stem easily, creating a stable and state of the art zero emission seal.

size: nps 1/2"~2"(dn15~dn50)
pressure rating: asme class 150~1500(pn16~pn260)
body material:carbon steel, stainless steel, alloy steel, duplex stainless steel
end connection:rf, bw, rtj,sw,npt
operation:manual, pneumatic, electric, hydraulic