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pressure compensation elements

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The pressure compensation elements serve for the aeration and deaeration of components, especially of enclosures.
For drainage plugs, please click here.

This is especially important to avoid damage to built-in components caused by condensation that occurs because of variations in temperature/pressure peaks.

Stainless steel pressure compensation elements

Plastic pressure compensation elements

pressure compensation element, click for more pictures

pressure compensation element, click for more pictures
more pictures ==>
An important performance feature of the pressure compensation elements is the high air flow rate combined with high water retention capacity. Thus the internal pressure of closed enclosures is adapted to  the ambient pressure, and at the same time, water penetration is prevented. This pressure compensation is also possible in conjunction with screwed cable glands ( "breathing cable gland").

In addition, we provide elements which dissipate the water from the housing interior and optionally at the same time equalize the pressure.

We are thus 3 possibilities:

  1. pressure compensation M12 elements from the series GH02/DAE
  2. cable connectors with integrated pressure equalization from the series GH02/KVDAE
  3. drainage and venting nozzle from the series EWS and EWLS

Degrees of impermeability attainable with these pressure compensation elements: IP66, IP68 and IPX9-k.

This is technically realized by means of a membrane foil integrated into the element, which is permeable to air on both sides and permeable to water on one side.

Different versions are available which differ in

  • material (polyamide, stainless steel V2A (1.4305) or stainless steel V4A (1.4404))
  • color (black or RAL 7035 light grey)
  • thread length (6.6 or 10mm )
  • counter nuts are available

Order number

Material

Color

For threads

Connecting thread length

GH02/DAE/K/M12a

POLYAMIDE

black

M12x1.5

6.6mm

GH02/DAE/K/M12b

POLYAMIDE

grey

M12x1.5

6.6mm

GH02/DAE/K/M12c

POLYAMIDE

black

M12x1.0

6.6mm

GH02/DAE/K/M12d

POLYAMIDE

grey

M12x1.0

6.6mm

GH02/DAE/K/M12e

POLYAMIDE

black

M12x1.5

10mm

GH02/DAE/K/M12f

POLYAMIDE

grey

M12x1.5

10mm

GH02/DAE/K/MGMg

POLYAMIDE

grey

M12x1,5

 

GH02/DAE/K/MGMs

POLYAMIDE

black

M12x1,5

 

GH02/DAE/K/M40g

POLYAMIDE

grey

M40x1,5

18mm

GH02/DAE/K/M40s

POLYAMIDE

black

M40x1,5

18mm

GH02/DAE/K/M/GMgc

POLYAMIDE

grey

 

 

GH02/DAE/K/M/GMbc

POLYAMIDE

black

 

 

GH02/DAE/M/M12

stainl. steel V2A

 

M12x1.5

10mm

GH02/DAE/M/M/GM

stainl.steel V2A

 

M12x1,5

 

GH02/DAE/M/M12a

stainl. steel V4A

 

M12x1.5

10mm

GH02/DAE/M/M/GMa

stainl.steel V4A

 

M12x1,5

 

Special equipments are available on request.

Additional information:

  • Usually, 1 pressure compensation element per enclosure is sufficient, but this depends on environmental factors as well as on the sensitivity of the electronic devices present; we would therefore recommend that you carry out your own tests in any case.

Properties of the membrane foil:

  • air flow rate: 0.4 l/min at 0.1 bar Delta P to 5.0 l/min at 1 bar Delta P
  • water entry pressure:   up to 1.0 bar
    (this can be increased up to 1.5 bar. For this purpose, you are required to order an IP68-enclosure and the respective individual degree of protection test)
  • temperature stability:    -40°C to +120°C (as integrated part of an installation)
  • dust proofness acc. to EN 60529:2000
  • water jet protection and protection against permanent immersion EN 60529:2000
  • protection against high pressure/steam jet cleaning acc. to DIN 40050

Additional information:

Chemical and solvent resistance of the membrane foil according to DIN EN ISO 2812-1
(determination of the resistance against liquids, test method 1 (dipping method))

Test liquid

Duration of the impact (at 23°C)

Change

Premium fuel

15 min

none

Diesel fuel

30 min

none

Engine oil

1 h

none

Water (dest.)

1 h

none

Brake fluid

1 h

none

Interior cleaner

1 h

none

Air passage test:

The pressure compensation element was screwed in into a thread adapter and subjected to a defined quantity of air by means of a mass flow controller 5 LN/MIN and/or 20 LN/MIN made by Bronkhorst. In doing so, the air pressure was measured with a pressure sensor PMP 4070 from the same company shortly in front of the pressure compensation element.

The following amounts of air, as a function of the air pressure, were determined:

Air pressure inside the enclosure

Air passage

0.1 bar

0.8 l/min.

0.2 bar

1.5 l/min.

0.3 bar

2.2 l/min.

0.4 bar

2.9 l/min.

0.5 bar

3.7 l/min.

0.6 bar

4.4 l/min.

0.7 bar

5.2 l/min.

0.8 bar

6.0 l/min.

0.9 bar

6.8 l/min.

1.0 bar

7.6 l/min.

The above statements do not absolve our customers from testing the suitability for the intended area of application in each case.

Our products are at any time subject to technical alterations without prior notice. Every liability is disclaimed with respect to application technology advice. Additionally, we refer to our general terms and conditions, which  you can find here in their latest version.

Cable glands series GH02/KVDAE  (with integrated pressure compensation)

With the series GH02/KVDAE cable glands and pressure compensation elements are combined. Pressure distinctions in- and outside of an enclosure can be compensated with a micro-porous, liquid-tight membrane. Hence, condensation is reduced to a minimum. Thus, the series GH02/KVDAE is excellently suitable for using in areas of machine and motor construction, in luminaire production or in industrial equipment construction.

Kabelverschraubung-GH02_KVDAE2-sm

Kabelverschraubung-GH02_KVDAE1-sm

With the breathing cable glands all requirements on a cable gland are continuously satisfied, whereas economical aspects are taken into account. Neither further components nor extra mounting or drilling are necessary. Due to the identical sizes, former cable glands can easily be replaced by the new series GH02/KVDAE.

  • Material:
    cable gland: Polyamide, brass, stainless steel V2A (1.4305) or stainless steel V4A (1.4404)
    gasket: EPDM
    membrane: ePTFE
  • Color: (RAL 9005 black or RAL 7035 light grey)
  • Temperatur range: -40°C to +100°C (intermittent up to approximate 120°C)
  • Protection class: IP69K
  • Equipment:
  • condensation reduction due to a micro-porous, liquid-tight and breathable ePTFE-membrane as integrated element of the cable gland
  • maximum traction relief through lamella
  • seal-tight to enclosure rack through additional EADR (at polyamide version), EPDM O-Ring (at brass or stainless steel version)
  • same sealing range on all cable glands
  • also available with reduction insert, multiple sealing insert, special sealing insert and dust-protection gasket 
  • Also available as EMI-gland (electromagnetic interference) with inserts according to DIN 89345

Part number

Material

Color

For thread

Connecting
thread length

For cables
diameters in mm

GH02/KVDAE/M20/Kg

polyamide

black

M20x1.5

10mm

06 – 13

GH02/KVDAE/M20/Ks

polyamide

light grey

M20x1.5

10mm

06 – 13

GH02/KVDAE/M20/M

brass

Kabelverschraubung-GH02_KVDAE3-sm

M20x1.5

10mm

06 – 13

GH02/KVDAE/M25/M

brass

M25x1.5

10mm

09 – 17

GH02/KVDAE/M32/M

brass

M32x1.5

10mm

13 – 21

GH02/KVDAE/M40/M

brass

M40x1.5

10mm

16 – 28

GH02/KVDAE/M50/M

brass

M50x1.5

10mm

21 – 35

GH02/KVDAE/M63/M

brass

M63x1.5

10mm

34 – 48

GH02/KVDAE/M20/2

stainless steel V2A

Kabelverschraubung-GH02_KVDAE3-sm

M20x1.5

10mm

06 – 13

GH02/KVDAE/M25/2

stainless steel V2A

M25x1.5

10mm

09 – 17

GH02/KVDAE/M32/2

stainless steel V2A

M32x1.5

10mm

13 – 21

GH02/KVDAE/M40/2

stainless steel V2A

M40x1.5

10mm

16 – 28

GH02/KVDAE/M50/2

stainless steel V2A

M50x1.5

10mm

21 – 35

GH02/KVDAE/M63/2

stainless steel V2A

M63x1.5

10mm

34 – 48

GH02/KVDAE/M20/4

stainless steel V4A

Kabelverschraubung-GH02_KVDAE3-sm

M20x1.5

10mm

06 – 13

GH02/KVDAE/M25/4

stainless steel V4A

M25x1.5

10mm

09 – 17

GH02/KVDAE/M32/4

stainless steel V4A

M32x1.5

10mm

13 – 21

GH02/KVDAE/M40/4

stainless steel V4A

M40x1.5

10mm

16 – 28

GH02/KVDAE/M50/4

stainless steel V4A

M50x1.5

10mm

21 – 35

GH02/KVDAE/M63/4

stainless steel V4A

M63x1.5

10mm

34 – 48


EMI-versions    (EMI = electromagnetic interference)

Part number

Material

Color

For thread

Connecting
thread length

For cables
diameters in mm

GH02/KVDAE/M20/Me

brass

Kabelverschraubung-GH02_KVDAE3-sm

M20x1.5

10mm

06 – 13

GH02/KVDAE/M25/Me

brass

M25x1.5

10mm

09 – 17

GH02/KVDAE/M32/Me

brass

M32x1.5

10mm

13 – 21

GH02/KVDAE/M40/Me

brass

M40x1.5

10mm

16 – 28

GH02/KVDAE/M50/Me

brass

M50x1.5

10mm

21 – 35

GH02/KVDAE/M63/Me

brass

M63x1.5

10mm

34 – 48

GH02/KVDAE/M20/2e

stainless steel V2A

Kabelverschraubung-GH02_KVDAE3-sm

M20x1.5

10mm

06 – 13

GH02/KVDAE/M25/2e

stainless steel V2A

M25x1.5

10mm

09 – 17

GH02/KVDAE/M32/2e

stainless steel V2A

M32x1.5

10mm

13 – 21

GH02/KVDAE/M40/2e

stainless steel V2A

M40x1.5

10mm

16 – 28

GH02/KVDAE/M50/2e

stainless steel V2A

M50x1.5

10mm

21 – 35

GH02/KVDAE/M63/2e

stainless steel V2A

M63x1.5

10mm

34 – 48

GH02/KVDAE/M20/4e

stainless steel V4A

Kabelverschraubung-GH02_KVDAE3-sm

M20x1.5

10mm

06 – 13

GH02/KVDAE/M25/4e

stainless steel V4A

M25x1.5

10mm

09 – 17

GH02/KVDAE/M32/4e

stainless steel V4A

M32x1.5

10mm

13 – 21

GH02/KVDAE/M40/4e

stainless steel V4A

M40x1.5

10mm

16 – 28

GH02/KVDAE/M50/4e

stainless steel V4A

M50x1.5

10mm

21 – 35

GH02/KVDAE/M63/4e

stainless steel V4A

M63x1.5

10mm

34 – 48

© 1999-2012 Richard Wöhr GmbH    Gräfenau 58-60   D-75339 Höfen/Enz  Update: 11/04/12

Tel: +49(0)7081/9540-0

Fax: +49(0)7081/9540-90

Email: Info-IG@WoehrGmbH.de