Steel

GN 749 Threaded plugs

Form

A	Sealing with synthetic rubber NBR (Perbunan)
B	Sealing with synthetic rubber FPM(Viton)

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d₁	d₁		d₂h14	l₁	l₂	s	max .permissible opreating pressure in PB	recommended torque in Nm

-	M 8 x 1	-	12	8	4	4	400	8
G 1/8	M 10 x 1	-	14	8	4	5	400	12
-	M 12 x 1,5	-	17	12	5	6	400	25
G 1/4	M 14 x 1,5	-	19	12	5	6	400	30
G 3/8	M 16 x 1,5	-	22	12	5	8	400	50
-	M 18 x 1,5	-	24	12	5	8	400	60
-	M 20 x 1,5	-	26	14	5	10	400	70
G 1/2	M 22 x 1,5	-	27	14	5	10	400	80
-	M 24 x 1,5	-	30	14	5	12	400	95
G 3/4	M 26 x 1,5	M 27 x 2	32	16	5	12	400	120
-	M 30 x 1,5	-	37	16	6,5	17	400	190
G 1	M 33 x 2	-	40	16	6,5	17	400	225
G 11/4	M 42 x 2	-	50	16	6,5	22	315	360
G 11/2	M 48 x 2	-	55	16	6,5	24	315	400

Filter combination produces no result.

Specification

Steel

Tensile strength class 5.8 (500 N/mm²)
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 to 180 °C
Sealing ring rubber
FPM (Viton®)
Identification by not black finish of the seal.

Elastomer characteristics

RoHS compliant

Information

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 opreating 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.

How to order