DZ40Y低温闸阀

DZ40Y低温闸阀 №：145

DZ40Y low temperature gate valve

1、为防止中腔异常升压，在闸板的进口侧设置了泄压孔；

2、根据阀门的工作温度确定润盖的顶部长度，确保阀填料的可靠密封；

3、根据工作温度合理选用填料，垫片等零件的材料；

4、严格控制材料的化学成份及低温冲击韧性等力学性能指标；

5、采用多种配管法兰标准及密封面型式，适用于各种工程需要。

1.Inorderte prevent abnormal pressure rise in the middle chamber,a pressure relief hole is set at the inlet side oftherams

2.Determine the top length of the bonnet according to the working temperature of the valve to ensure the reliable sealing of the valvepacking;

3.Reasonably select the materials of packing,gasket and other parts according to the working temperature;

4.Striclly control the mechanical praperty indexes such as chemical composition and fow lemperature impaot toughness of the material;

5.Itadeptsa vartety of piping flange standards and sealing surlacetypes,which are suitable for various engineering needs.

技术参数

Technical parameter

公称通径：DN20~500mm

Nominal caliber:DN20-500mm

公称压力：1.0MPa-2.5MPa

Nominal pressure:1.0MPa-2.5MPa

适用温度：-46℃~-196℃

Applicable temperature:-46℃--196℃

适用介质：水、蒸气、油品

Applicable medium:Water,steam,ail

主体材质：碳钢、不锈钢

Main material:carbon steel,stainless steel