Electric Vacuum Ball Valve
The electric vacuum ball valve is used to connect or cut off the medium flow in the vacuum system pipeline. Used in vacuum, dairy ºìÌÒÊÓƵ, wine industry, bioengineering, food, pharmaceutical, beverage, cosmetics and chemical industry.
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Product Introduction
Working principle of electric vacuum ball valve: The sealing mechanism in the vacuum ball valve is composed of two annular elastic bodies pressed tightly on the surface of a metal ball. There is a large perforation on the metal ball. Turn the metal ball with the help of the handle to change the direction of the perforation, and the gas path can be connected or cut off. The seal between the metal ball shaft rod and the valve body is sealed with an O-ring.
Materials of main parts of high vacuum ball valve
Body, Bonnet, Stem |
Stainless Steel |
Seals |
PTFE, nitrile rubber, fluororubber, PPL |
Main technical performance of high vacuum ball valve Valve leakage rate: ¡Ü1.3¡Á10-4 Pa.L/S Applicable temperature: -30~+150¡ãC; -30~+150¡ãC (PPL seal) Operating pressure range (Pa) Loop flange: (GB6070, JB919): 0.6¡Á106 ~1.3¡Á10-4 Welding flange (GB6070, JB919): 1.6¡Á106 ~1.3¡Á10-4 Quick release flange (GB4982): 0.1¡Á106 ~1.3¡Á10-4 Threaded connection: 1.6¡Á106 ~1.3¡Á10-4
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