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High vacuum Diaphragm valves |
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Features
High vacuum Diaphragm valves are used to connect with or to cut off the vacuum
system. Mode of connects have looping Flange, quick disconnect Flange, jointing
connect pipes I &?. The applicable mediums are air and non-corrosive gases.
The high vacuum Diaphragm valves of jointing connect pipes I &? are best attachment for
bromide-lithium refrigeration equipment.
Standard of connecting Flange: GB6070?JB919?GB498
Main technical performance
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Model
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DN(mm)
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Application (Pa)
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Gaseous flow rate
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Medium temperature (?)
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Pa
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mbar
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Torr
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Pa.1/s
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mbar.1/s
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Torr.1/s
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Looping Flange
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GM
-10C
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10
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10 5~1.3*10 -4
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10 3~1.3*10 -2
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0.75*10 3~1*10 -2
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6.7*10 -4
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6.7*10 3
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5*10 -3
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-25~+80(sealed materials are
butadiene - acrylonitrile rubber) -30~+150(sealed materials are fluorine
rubber)
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GM
-25C
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25
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GM-40
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40
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GM-50
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50
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Quick disconnect Flange
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GM
-10C-KF
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10
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GM
-25C-KF
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25
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GM-40-KF
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40
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Jointing connect pipes I
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GM-10D-H(1)
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10
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GM-25D-H(1)
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25
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GM-40-H
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40
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GM-50-H
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50
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Jointing connect pipes ?
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GM-10D-H(?)
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10
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GM-25D-H(?)
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25
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Vacuum Valve 
