Features
1.Nominal diameter:NPS2″–16″
2.Nominal pressure: PN16–PN40;
3.Body material:cast steel, stainless steel,alloy
4.Stem:13Cr, stainless steel
5.Wedge:carbon steel and stainless steel
6.Bellows: stainless steel
7.Stem with bellow seal, Secondary sealing; None-rising handwheel
8.Medium: Petroleum, atural gas, steam, hot water, thermal oil, process water, etc.

Features
1.Design and manufacture:EN 13709
2.Face to face: EN 558-1
3.Flange standard:EN 1092-1
4.Inspection and test:EN12266