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GN 881 Breather Valves Brass


GN 881 Breather Valves

Product description


Once the opening pressure given in the table is exceeded, breather valves GN 881 with gasket will vent into a container and so protect against excessive inside container pressure. A green colour ring marks the opening pressure of 200 mbar.

In its normal state, the gasket closes the container and so prevents dirt or dust getting inside the container.

The above diagram shows the air outlet as a factor of the opening pressure.

The valves are checked for leak tightness and opening pressure.

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


Valve body

Breather cap
Stainless steelM AISI 304

with silicone-rubber coating (VMQ)

Pressure spring
Stainless steel AISI 301

Seal DIN 7603 A
Soft iron 1.0338

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


On request

Other material
With other opening pressure 50 mbar (yellow ring)
With oil dipstick

Technical drawing

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GN 881 Breather Valves sketch

Article options / Table

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d1d1Opening pressure
in mbar ±20%
d2d3e ≈l1l2l3A/F
M 12 x 1,5-200182023,58,511,524,522
M 14 x 1,5G 1/4200202023,58,511,524,522
M 16 x 1,5-200222023,58,511,524,522
-G 3/8200232023,58,511,524,522
M 18 x 1,5-200242023,58,511,524,522
M 20 x 1,5-2002620298,511,524,527
M 22 x 1,5-2002720298,511,524,527
-G 1/22002620298,511,524,527
M 24 x 1,5-200292032,58122530
M 26 x 1,5G 3/42003220348122532
M 30 x 1,5-2003620398122536
-G 12003920448122541

Build & Price

Open 3D configurator
Fine thread d1
Inch thread d1
Opening pressure
Material of the valve body

Material of the breather

Selected Part (How to order)

Total (net)
plus VAT 2,27 €
gross 14,23 €
In stock
Weight: 0,039 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone +49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances).
Please note our order discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 49,99 €
All prices in accordance with our price list No. 55, valid from 1 September 2022, plus VAT only valid for Germany.

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