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Valves
5
Part
Number
P
NPT
in.
P1
ISO
Thread Size
L
mm
E
mm
H
Hex
mm
GNH- 2NR
1/8 1/8-28 (7-1)
24.6
4.8
11.1
GNH- 4NR
1/4 1/4-19 (7-1)
35.6
7.1
14.2
GNH- 6NR
3/8 3/8-19 (7-1)
36.3
9.6
17.4
GNH- 8NR
1/2 1/2-14 (7-1)
46.7 11.9 22.2
GNH-12NR
3/4 3/4-14 (7-1)
46.7 15.7 26.9
GNH-16NR
1 1-11 (7-1)
58.9 22.4 34.9
Part
Number
P
L
E
H
NPT
in.
mm
mm
Hex
mm
GNL- 2N
1/8
★
4.8
11.1
GNL- 4N
1/4
★
7.1
14.2
GNL- 6N
3/8
★
9.7
17.4
GNL- 8N
1/2
★
11.9
22.2
GNL-12N
3/4
★
15.7
26.9
GNL-16N
1
★
22.4
34.9
Part
Number
P P1
L B C E H
NPT
in.
ISO
Thread Size mm mm mm mm Hex
mm
GNH- 2NG
1/8 1/8-28
(228-1)
27.4 7.1 13.7 4.1 14.2
GNH- 4NG
1/4 1/4-19
(228-1)
36.8 11.2 17.8 5.8 19.05
GNH- 6NG
3/8 3/8-19
(228-1)
37.6 11.2 21.8 7.9 22.2
GNH- 8NG
1/2 1/2-14
(228-1)
45.0 14.2 26.1 11.9 26.9
GNH-12NG
3/4 3/4-14
(228-1)
49.0 15.7 31.5 15.7 33.3
GNH-16NG
1 1-11
(228-1)
56.9 18.3 38.9 19.8 41
Part
Number
P
NPT
in.
P1
Reduced
NPT in.
L
mm
E
mm
H
Hex
mm
GNR 4-2N
1/4
1/8
30.7
4.8
14.2
GNR 6-2N
3/8
1/8
32.0
4.8
17.4
GNR 6-4N
3/8
1/4
36.1
7.1
17.4
GNR 8-2N
1/2
1/8
37.2
4.8
22.2
GNR 8-4N
1/2
1/4
41.7
7.1
22.2
GNR 8-6N
1/2
3/8
41.7
9.6
22.2
GNR 12-4N
3/4
1/4
41.7
7.1
26.9
GNR 12-8N
3/4
1/2
46.7 11.9 26.9
GNR 16-4N
1
1/4
49.3
7.1
34.9
GNR 16-8N
1
1/2
54.1 11.9 34.9
HEX REDUCING NIPPLE
GNR
Male NPT to reduced male NPT
HEX NIPPLE
GNH
Male NPT to male ISO parallel
HEX NIPPLE
GNH
Male NPT to ISO tapered
HEX LONG NIPPLE
GNL
Male NPT both ends
All dimensions are in millimeters unless otherwise specified and only for reference subject to change.