Isolation Valves Manual Viton Seal Gate Valves
Specifications
General
Nominal IDs: 1.5 to 12 inch
Helium leak rate: <2x10 -9 std. cc./sec.
Materials
Body: 304 SS vacuum furnace brazed body
Bellows: Welded AM-350
O-ring: Viton (standard), Chemraz, Kalrez, Silicone
Finish: Electropolished inside and out
Maximum pressure differential
At opening
4 inch ID or smaller:
760 Torr on gate side,
20 torr on carriage side
Greater than 4 inch ID: 20 Torr either direction
Closed: 760 Torr in either direction
Vacuum range
Viton seal bonnet: >10 -9 Torr
Temperature range
Viton Seal Bonnet: <150°C
Manually actuated Acme threads for fewer turns
Options: O-rings, heater jackets
D
F
E
Handles
extend on all
10" and 12"
manual gate
valves
B
A
G
C
Manually Operated Viton Seal Gate Valves
Model Number
GV-1502-NW
GV-1502-CF
GV-2002-NW
GV-2002-CF
GV-2502-CF
GV-2502-ASA
GV-2502-ISO
GV-2502-ISO-OF
GV-3002-CF
GV-3002-ASA
GV-3002-ISO
GV-3002-ISO-OF
GV-4002-CF
GV-4002-ASA
GV-4002-ISO
GV-4002-ISO-OF
GV-6002-CF
GV-6002-ASA
GV-6002-ISO
GV-6002-ISO-OF
GV-8002-CF
GV-8002-ASA
GV-8002-ISO
GV-8002-ISO-OF
GV-10002-CF
GV-10002-ASA
GV-10002-ISO
GV-10002-ISO-OF
GV-12002-CF
GV-12002-ASA
GV-12002-ISO
GV-12002-ISO-OF
Nom.
ID
11/2
11/2
2
2
21/2
21/2
21/2
21/2
3
3
3
3
4
4
4
4
6
6
6
6
8
8
8
8
10
10
10
10
12
12
12
12
Flange
Type
NW-40
2.75 CF
NW-50
3.38 CF
4.50 CF
ASA-6*
ISO-63
ISO-63-OF
4.62 CF
ASA-7.5*
ISO-80
ISO-80-OF
6.00 CF
ASA-9*
ISO-100
ISO-100-OF
8.00 CF
ASA-11*
ISO-160
ISO-160-OF
10.00 CF
ASA-11*
ISO-200
ISO-200-OF
12.00 CF
ASA-16*
ISO-250
ISO-250-OF
14.00 CF
ASA-16*
ISO-320
ISO-320-OF
Conductance
(moleculer-l/sec.)
98
130
220
300
520
610
610
320
840
1,070
1,070
550
1,700
2,100
2,100
1,400
5,400
7,100
7,100
4,000
12,200
14,500
15,200
9,500
24,900
24,800
26,900
15,400
34,600
42,800
42,800
24,500
A
4.69
4.69
5.60
5.60
6.50
6.50
6.50
6.50
7.70
7.70
7.70
7.70
10.76
10.76
10.76
10.76
14.07
14.07
14.07
14.07
18.42
18.42
18.42
18.42
24.04
24.04
24.04
24.04
28.89
28.89
28.89
28.89
B
3.40
3.40
4.12
4.12
4.81
4.81
4.81
4.81
5.77
5.77
5.77
5.77
8.13
8.13
8.13
8.13
10.64
10.64
10.64
10.64
13.93
13.93
13.93
13.93
18.30
18.30
18.30
18.30
22.03
22.03
22.03
22.03
C
D
1.99
2.03
1.99
2.28
2.40
2.03
2.03
3.46
2.53
2.03
1.97
3.84
2.97
2.41
2.41
4.25
3.17
2.41
2.36
4.25
3.35
2.76
2.66
4.25
3.65
3.15
3.15
5.51
3.89
3.15
3.15
4.67
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
3.11
3.11
3.11
3.11
3.11
3.11
3.11
3.11
3.11
3.11
3.11
3.11
8.98
8.98
8.98
8.98
8.98
8.98
8.98
8.98
E
3.61
3.61
3.61
3.61
3.61
3.61
3.61
3.61
3.61
3.61
3.61
3.61
7.90
7.90
7.90
7.90
7.90
7.90
7.90
7.90
7.90
7.90
7.90
7.90
12.00
12.00
12.00
12.00
12.00
12.00
12.00
12.00
F
3.31
3.31
3.81
3.81
4.37
4.37
4.37
4.37
4.94
4.94
4.94
4.94
7.00
7.00
7.00
7.00
8.75
8.75
8.75
8.75
11.25
11.25
11.25
11.25
13.44
13.44
13.44
13.44
15.90
15.90
15.90
15.90
*Note: All ASA flanged valves are provided without O-ring grooves. Grooves can be provided on request.
Call toll free 800-824-4166 or 530-842-4457 • FAX 530-842-9130
Visit our Web Site www.n-c.com
G
2.45
2.45
2.96
2.96
3.52
3.52
3.52
3.52
4.28
4.28
4.28
4.28
5.65
5.65
5.65
5.65
7.55
7.55
7.55
7.55
10.02
10.02
10.02
10.02
11.99
11.99
11.99
11.99
14.28
14.28
14.28
14.28

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