GN 883 Breather Valves,

Type

A	Low design
B	High design, with stainless steel cap

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d₁		Opening pressure in mbar min.	max.	d₂	d₃	e₁	e₂	l₁	l₂	l₃	l₄	l₅	A/F Type A	Type B	ca. air pas- sage Type A	l/min. Type B

M 10 x 1	-	20	80	14,5	12,5	16	18,5	6	6	8	7	16	14	17	1,2	1,8
M 10 x 1	-	160	240	14,5	12,5	16	18,5	6	6	8	7	16	14	17	1,2	1,8
M 12 x 1,5	-	20	80	18	12,5	19,5	18,5	6,5	6	7,5	7	16,5	17	17	1,2	1,8
M 12 x 1,5	-	160	240	18	12,5	19,5	18,5	6,5	6	7,5	7	16,5	17	17	1,2	1,8
M 14 x 1,5	G 1/4	20	80	20	12,5	19,5	18,5	6,5	6	7,5	7,5	16,5	17	17	1,2	1,8
M 14 x 1,5	G 1/4	160	240	20	12,5	19,5	18,5	6,5	6	7,5	7,5	16,5	17	17	1,2	1,8
M 16 x 1,5	-	20	80	22	12,5	25	24	9	11	7,5	7,5	16,5	22	22	1,2	1,8
M 16 x 1,5	-	160	240	22	12,5	25	24	9	11	7,5	7,5	16,5	22	22	1,2	1,8
-	G 3/8	20	80	23	12,5	25	24	9	11	7,5	7,5	16,5	22	22	1,2	1,8
-	G 3/8	160	240	23	12,5	25	24	9	11	7,5	7,5	16,5	22	22	1,2	1,8
-	G 1/2	20	80	26	12,5	31	29	8,5	11	8	8	17	27	27	1,2	1,8
-	G 1/2	160	240	26	12,5	31	29	8,5	11	8	8	17	27	27	1,2	1,8
-	G 3/4	20	80	32	12,5	37	35	8,5	11	8	8	17	32	32	1,2	1,8
-	G 3/4	160	240	32	12,5	37	35	8,5	11	8	8	17	32	32	1,2	1,8

Filter combination produces no result.

Specification

Valve body
BrassMS

Ball
Steel AISI 5210

Pressure spring
Stainless steel AISI 301

Seal DIN 7603 A
Soft iron 1.0338
(for d₁ = M10 x 1: PA6)

Breather (type B)
Stainless steel AISI 304

Temperature resistant from -30 °C to +200 °C

Stainless Steel Characteristics

RoHS

Accessory

Mounting Nuts GN 7430

Information

Once the opening pressure given in the table is exceeded, breather valves GN 883 will vent into a container and so protect against excessive inside container pressure. They also feature highly compact dimensions.

A coding (Type A) or a colour ring (Type B) in yellow (20 - 80 mbar) or green (160 - 240 mbar) indicates the different opening pressure ratings.

The simple function principle (pressure spring / ball) ensures long and trouble-free use of the valve. The installation position is vertical to the top.

Assembly instruction:
For mounting on walls of less than 4 mm thickness please use a mounting nuts GN 7430.

How to order