99国产一区二区精品久久呦_欧美精品91欧美日韩操_欧美成人三级在线观看播放_黄色电影免费在线观看视频_亚洲熟女激情一区二区_波多久久亚洲精品无码_天天综合精品资源站_无套大战乌克兰白嫩美女_人妻丰满被色诱中文字幕免费_夜色超清无码Av在线播放

 

♦ No dead zone ♦ Strictly close ♦ Stem seal prevents leakage to the atmosphere ♦ Crystallization considerations and the design of the shell spool ♦ Cross contamination ♦ Fireproof ♦ Temperature measurement ♦ Sampling

Introduction to bottom valve
1. Scope of application
Tank bottom valves are now widely used in chemical, petroleum, metallurgical, pharmaceutical, pesticide, dye, and food processing industries.

2. Model specifications
Nominal diameter: DN20—80

3. Connection method
(1)Clamp
(2)Welding
(3)Flange

4. Performance characteristics
(1)The valve body has a Y-shaped structure and is installed at the bottom of the reactor for emptying the reactor.
(2)Divided into two types: up-extension and down-extension.
(3)The valve body has good pressure bearing capacity and adapts to high flow pressure difference.
(4)It is not easy to be damaged under the environment of high pressure difference.
(5)The valve core, valve stem, and valve seat are all made of special materials, and the internal parts have enhanced corrosion resistance.
(6)The leakage level can reach the zero leakage defined by API.