国标波纹管截止阀产品结构特点 PRODUCT STRUCTURAL FEATURES
GB standard bellow sealed globe valve is apply to various kinds of working conditions pipeline such as petroleum, chemical industry, pharmacy,fertilizer, and power industry etc. Under nominal pressure in the PN1.6-4_0MPa and operating temperature at -20。〇350。0, that is used to cut off orconnected the pipeline medium.
国标波纹管截止阀其主要结构特点 MAIN STRUCTURAL FEATURES
1.This product has logical structure,reliable seal,excellent performance and nice design.
2.Sealing face is overlayed by STL，which is friction-resistanced, corrosion—resistaned to ensure a long time use life.
3.Stem Heat-treatment and surface nitriding treatment to sure fuction of corrosion-resistanced and friction- resistanced.
4.It has double seal,thus the capability is more reliable.
5.The stem may show the position of lift,thus it is more clearer.
6.The parts material.flange and butt welding dimension may selected according to current operating condition or users' requirement to meeting the requirements of various engineering.