High vacuum pressure diaphragm valve for diaphragm material

The diaphragm material of the high vacuum pressure diaphragm valve determines its purpose

The high vacuum pressure diaphragm valve is used to put through or cut off the medium flow in the vacuum (pressure) system pipeline. High vacuum pressure diaphragm valve is used in vacuum, dairy products, wine industry, biological engineering, food, pharmaceutical, beverage, cosmetics and chemical fields. High vacuum pressure diaphragm valves use the stem to press the rubber film directly against the seat to stop or connect the vacuum system. High vacuum pressure diaphragm valve suitable for the working medium of air and non-corrosive gas, high vacuum pressure diaphragm valve applicable scope: 105 ~ 1.3x10-4Pa high vacuum pressure diaphragm valve leakage rate: 6.7x10-4Pa.L/S high vacuum pressure diaphragm valve medium temperature: high vacuum pressure diaphragm valve diaphragm for nitrile rubber when -25℃ ~ +80℃ diaphragm for fluorine rubber when -30℃ ~ +150℃

The high vacuum pressure diaphragm valve USES the stem to compress the elastomer film against the seat to block the air path. As shown in Figure 3, turning the handwheel causes the stem to move up and down, leaving the diaphragm off the seat to open the vacuum valve or pressing the diaphragm against the seat to close the valve. High vacuum pressure diaphragm valve produced by Yongjia Kethis vacuum valve factory, if using butadiene rubber diaphragm, is suitable for the front stage and pre-pumping pipeline and the temperature of -25 ~ 80℃ non-corrosive gas. High vacuum pressure diaphragm valve with fluororubber diaphragm can be used in high vacuum system, the use temperature range is -30 ~ 150℃.

High vacuum pressure diaphragm valve main technical performance

Valve leakage rate: ValveLeakRate≤1.3× 10-4PA.L /S.

ApplicableTemperature: applicabletemperature-25 ~ +80℃(NBR); -30 ~ +150℃(fluororubber)

Scope of Applicability: Sapplicability

Flange using pressure range (Pa)

Looped flange (GB6070, JB919)0.6×106 ~ 1.3×10-4

Welding flange (GB6070, JB919)1.6×106 ~ 1.3×10-4

Quick discharge flange (GB4982)0.1×106 ~ 1.3×10-4

ThreadedConnection Thread Connection1.6×106 ~ 1.3×10-4

The high vacuum pressure diaphragm valve is used to put through or cut off the vacuum system. Connecting pipe welding diaphragm valve is the ideal accessories in lithium bromide refrigeration equipment. High vacuum pressure diaphragm valve suitable for the medium of air and non-corrosive gas. Connection flange standard according to GB6070 or GB4982 provisions, also can be the connection pipe welding type. The high vacuum pressure diaphragm valve USES the stem to press the rubber film directly onto the seat. The high vacuum pressure diaphragm valve is used to stop or connect the vacuum system. The diaphragm valve of high vacuum pressure is connected in the form of loose-sleeve flange connection, quick-release flange connection and welded connection. Welding connection is divided into welding type I connection (i.e. two ends welding) and welding type II connection (i.e. one end welding and the other end insertion). High vacuum pressure diaphragm valve suitable for the working medium of air and non-corrosive gas.