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GI series high-vacuum butterfly valve

GI series pneumatic high-vacuum butterfly valve is applicable for cutting off or connecting the air stream in the high-vacuum system.
 

Scope(Pa)

10 5  ~1.3×10 -6

Valve leakage rate(Pa.L/S)

≤1.3×10 -7

Medium temperature(℃)

-25~+80(Sealing material NBR)

-30~+150(Seal material FKM)

Air pressure(MPa)

0.4~0.8

Flange Standard

JB919

Installation location

Random



Model

Nominal diameter (DN))

ΦD

ΦB

H

A

L

n-ΦC

GI-25

25

70

55

64

22

104

4-Φ7

GI-32

32

78

64

68

GI-40

40

85

70

72

116

GI-50

50

110

90

85

4-Φ9

GI-63

63

130

110

96

26

132

GI-80

80

145

125

108

30

154

GI-100

100

170

145

120

4-Φ12

GI-125

125

195

170

136

35

197

GI-150

150

220

195

150

8-Φ12

GI-200

200

275

250

185

40

242

GI-250

250

330

300

219

45

330

GI-300

300

380

350

245

55

8-Φ14

GI-400

400

500

465

312

60

435

8-Φ18

Note: GI-63 standard flange connection to GB/T6070.
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