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

Blectro-magnetic air admittance gas valve- flange 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

KF and ISO-F

 

 

Connections and dimentions::

Model

Nominal Diameter(DN)

ΦW

ΦD

ΦB

H

A

n-d

Flange standard

JQ16B

16

68

30

17.2

191

40

/

GB4982

JQ25B

25

82

40

26.2

202

50

JQ32B

32

92

55

41.2

244

50

JQ40B

40

110

55

41.2

275

65

JQ50B

50

125

110

90

314

80

4-Φ9

GB/T6070

JQ65B

65

135

130

110

343

88

4-Φ9

JQ80B

80

135

145

125

387

95

4-Φ9

JQ100B

100

165

165

145

399

108

8-Φ9

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