GN 7403

Breather strainers

with Stainless Steel mesh

GN 7403-AL

Breather strainers

GN 7403-NI

Breather strainers
Stainless Steel

GN 7403-AL

Breather strainers


  • Aluminium AL
  • Stainless Steel AISI 303 NI


Stainless Steel mesh

AISI 304

Strainer bezel

Plastic Polyamide (PA)

  • glass fibre reinforced
  • temperature resistant up to 100 °C

Sealing / O-Ring

Rubber NBR (Perbunan ®)

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  GH..

  • Mounting nut GH.

  • Body in brass
  • Other mesh size
  • Other material for the strainer


Feeling overwhelmed with what product to choose?

Don’t delay, give OIC a call and talk to us about your industrial application. Our aim is to help your business choose the right Elesa+Ganter element for the function you need. Whether you need to clamp, close, connect, control, level, manoeuvre, measure or set. OIC has an Elesa+Ganter machine element to fit your need.

We want to find out about your industrial application need and where we can help. Our contact details are below.