Breather strainers

Breather strainers
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Breather strainers GN 7403 are used in enclosure and device construction. Inserted into the wall of the enclosure, they ensure pressure equilibrium between the inside of the enclosure and the outside.
Any dirt and dust particles carried by the medium (usually gas) are prevented from exiting depending on the mesh size. This protects the insides of sensitive devices and machinery parts from dirt and pollution and also protects the environment from any exiting dust.
The outside diameter of the enclosure with the recessed hexagon matches the bolt mounting holes for DIN 3852 threaded pipe connectors.
The sealing ring is embedded in a radial and plane-sided recess which makes the seal captive and prevents it from being squeezed out during tightening.
Assembly instruction:
For mounting on walls of less than 4 mm thickness, please use mounting nut GN 543.1.

Part Number

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the corresponding part number is displayed here.

Part Number
7403-AL-G1/2-100
7403-AL-G1/2-500
7403-AL-G1-100
7403-AL-G1-500
7403-AL-G3/4-100
7403-AL-G3/4-500
7403-AL-M20X1,​5-100
7403-AL-M20X1,​5-500
7403-AL-M26X1,​5-100
7403-AL-M26X1,​5-500
7403-AL-M33X1,​5-100
7403-AL-M33X1,​5-500
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
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Thread d1 Mesh size

7.60 €

1 Available 5 Days G 1/2100

7.60 €

1 Available 5 Days G 1/2500

12.00 €

1 Available 5 Days G 1100

12.00 €

1 Available 5 Days G 1500

10.04 €

1 Available 5 Days G 3/4100

10.04 €

1 Available 5 Days G 3/4500

7.60 €

1 Available 5 Days -100

7.60 €

1 Available 5 Days -500

10.04 €

1 Available 5 Days -100

10.04 €

1 Available 5 Days -500

12.00 €

1 Available 5 Days -100

12.00 €

1 Available 5 Days -500

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Basic information

Material AL-Aluminum

Tech Support