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波紋管閥門

產品簡介

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

福建彩票36选7走势图