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Unique Vacuum Systems, Bangalore India, Supplier of Vacuum Pumps, Measuring instruments, Helium leak testing services
 
 

Electro-magnetic air admittance gas valve – direct pump mounting
Unique Vacuum    Unique Vacuum
This electro-magnetic vacuum gas valve is a special valve installed in rotary vane vacuum pump.
The valve and pump should be connected in the same power. The pump start / stop directly controls the valve open / close. When the pump stops working or there is a sudden interruption of the power supply, the valve will automatically close the vacuum system and fills gas into pump through the pump gas inlet. In this way, it prevents the pump oil return to the vacuum system.
The applicable active medium of this valve are air, non-corrosive gas.
Technical specifications:

Scope (m.Bar)

1031x10-4

Valve Leakage Rate(m.Bar.L/S)

6.7x10-6

Applicable temperature (°C )

-25+50

Winding temperature (°C )

≤65

Time for opening and closing the valve (S)

≤3

Rated voltage (V/Hz)

220±10%/50

Flange Standard

JB919

Connections and dimentions::

Model

Nominal Diameter(DN)

ΦW

ΦB

H

h

bxb

n-d

JQ16A

16

68

42

176

28

48x48

4-M5

JQ25A

25

82

55

199

35

58x58

4-M6

JQ32

32

92

64

226

40

68x68

4-M6

JQ40

40

110

70

245

44

80x80

4-M6

JQ50A

50

125

90

290

56

95x95

4-M8

JQ65

65

135

105

320

65

115x115

4-M8

JQ80

80

165

125

367

75

140x140

4-M8

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