GN 7403-NIBreather Strainers

Stainless Steel

Stainless Steel Mesh

Catalogue
d1
Mesh size
d2
d3
l1
l2
s
GN 7403-NI-G1/2-100
G1/2
100
26
10
8.5
7.5
23
23
GN 7403-NI-G1/2-500
G1/2
500
26
10
8.5
7.5
23
20
GN 7403-NI-G3/4-100
G3/4
100
32
14
9
8
30
38
GN 7403-NI-G3/4-500
G3/4
500
32
14
9
8
30
38
GN 7403-NI-G1-100
G1
100
40
20
11
8.5
36
59
GN 7403-NI-G1-500
G1
500
40
20
11
8.5
36
66
GN 7403-NI-M20x1,5-100
M20x1.5
100
26
10
8.5
7.5
23
20
GN 7403-NI-M20x1,5-500
M20x1.5
500
26
10
8.5
7.5
23
20
GN 7403-NI-M26x1,5-100
M26x1.5
100
32
14
9
8
30
38
GN 7403-NI-M26x1,5-500
M26x1.5
500
32
14
9
8
30
37
GN 7403-NI-M33x1,5-100
M33x1.5
100
40
20
11
8.5
36
59
GN 7403-NI-M33x1,5-500
M33x1.5
500
40
20
11
8.5
36
59

Body

  • Aluminium AL
  • Stainless Steel AISI 303 NI

Strainer

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
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