GN 749Threaded plugs

Threaded plugs

Steel, zinc plated

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Threaded plugs
Threaded plugs

GN 749

Reset
Catalogue
d1
d2 h14
d3
l1
l2
s
Max. permissible
operating pressure
in PB
Recommended
tourque in Nm
GN 749-M8x1-A
M 8 x 1
12
9.9
8
4
4
400
8
5
GN 749-M8x1-B
M 8 x 1
12
9.9
8
4
4
400
8
5
GN 749-M10x1-A
M 10 x 1
14
11.9
8
4
5
400
12
8
GN 749-M10x1-B
M 10 x 1
14
11.9
8
4
5
400
12
7
GN 749-M12x1,5-B
M 12 x 1.5
17
14.4
12
5
6
400
25
15
GN 749-M12x1,5-A
M 12 x 1.5
17
14.4
12
5
6
400
25
14
GN 749-M14x1,5-A
M 14 x 1.5
19
16.5
12
5
6
400
30
19
GN 749-M14x1,5-B
M 14 x 1.5
19
16.5
12
5
6
400
30
10
GN 749-M16x1,5-B
M 16 x 1.5
22
18.9
12
5
8
400
50
25
GN 749-M16x1,5-A
M 16 x 1.5
22
18.9
12
5
8
400
50
24
GN 749-M18x1,5-A
M 18 x 1.5
24
20.9
12
5
8
400
60
31
GN 749-M18x1,5-B
M 18 x 1.5
24
20.9
12
5
8
400
60
31
GN 749-M20x1,5-A
M 20 x 1.5
26
22.9
14
5
10
400
70
40
GN 749-M20x1,5-B
M 20 x 1.5
26
22.9
14
5
10
400
70
41
GN 749-M22x1,5-A
M 22 x 1.5
27
24.3
14
5
10
400
80
49
GN 749-M22x1,5-B
M 22 x 1.5
27
24.3
14
5
10
400
80
48
GN 749-M24x1,5-A
M 24 x 1.5
30
26.9
14
5
12
400
95
57
GN 749-M24x1,5-B
M 24 x 1.5
30
26.9
14
5
12
400
95
57
GN 749-M26x1,5-B
M 26 x 1.5
32
29.2
16
5
12
400
120
80
GN 749-M26x1,5-A
M 26 x 1.5
32
29.2
16
5
12
400
120
75
GN 749-M27x2-A
M 27 x 2
32
29.2
16
5
12
400
120
80
GN 749-M27x2-B
M 27 x 2
32
29.2
16
5
12
400
120
80
GN 749-M30x1,5-A
M 30 x 1.5
37
32.7
16
6.5
17
400
190
103
GN 749-M30x1,5-B
M 30 x 1.5
37
32.7
16
6.5
17
400
190
104
GN 749-M33x2-A
M 33 x 2
40
35.7
16
6.5
17
400
225
126
GN 749-M33x2-B
M 33 x 2
40
35.7
16
6.5
17
400
225
127
GN 749-M42x2-B
M 42 x 2
50
45.8
16
6.5
22
315
360
196
GN 749-M42x2-A
M 42 x 2
50
45.8
16
6.5
22
315
360
202
GN 749-M48x2-B
M 48 x 2
55
50.7
16
6.5
24
315
400
250
GN 749-M48x2-A
M 48 x 2
55
50.7
16
6.5
24
315
400
254
GN 749-G1/8-B
G 1/8
14
11.9
8
6.5
5
400
12
7
GN 749-G1/8-A
G 1/8
14
11.9
8
4
5
400
12
7
GN 749-G1/4-A
G 1/4
19
16.5
12
5
6
400
30
18
GN 749-G1/4-B
G 1/4
19
16.5
12
5
6
400
30
18
GN 749-G3/8-B
G 3/8
22
18.9
12
5
8
400
50
26
GN 749-G3/8-A
G 3/8
22
18.9
12
5
8
400
50
26
GN 749-G1/2-B
G 1/2
27
23.9
14
5
10
400
80
45
GN 749-G1/2-A
G 1/2
27
23.9
14
5
10
400
80
44
GN 749-G3/4-A
G 3/4
32
29.2
16
5
12
400
120
70
GN 749-G3/4-B
G 3/4
32
29.2
16
5
12
400
120
75
GN 749-G1-B
G 1
40
35.7
16
6.5
17
400
225
124
GN 749-G1-A
G 1
40
35.7
16
6.5
17
400
225
115
GN 749-G11/4-A
G 1 1/4
50
45.8
16
6.5
22
315
360
195
GN 749-G11/4-B
G 1 1/4
50
45.8
16
6.5
22
315
360
195
GN 749-G11/2-B
G 1 1/2
55
50.7
16
6.5
24
315
400
240
GN 749-G11/2-A
G 1 1/2
55
50.7
16
6.5
24
315
400
240

Types

  • Type A: Sealing ring rubber NBR (Perbunan)
  • Type B: Sealing ring rubber FPM (Viton®)

Steel

  • Tensile strength class 5.8
  • ultrasonically and tensile tested
  • zinc plated, nano-passivated (silver / yellowish)

Type A

temperature resistant up to 100 °C

Sealing ring rubber NBR (Perbunan)

Type B

temperature resistant up tp 180 °C

Sealing ring rubber FPM (Viton®)

Identification by not black finish of the seal

The dimensions of the threaded plugs GN 749 comply with DIN 908 -, but deviating from the latter is the elastic sealing ring (rubber). This sealling ring is retained in a radial undercut in the mating face which prevents it from dropping out and in particular it does not extrude when the plug is tightened.

The details relating to the permissible operating pressure are non-binding recommended values and rule out any liability. They constitute no general warranty of quality and condition. The user must determine from case to case whether a product is suitable for the intended use.

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