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
	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 )

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/M/M12	stainl. steel V2A		M12x1,5	10mm
GH02/DAE/M/M12a	stainl. steel V4A		M12x1,5	10mm

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 arespective individual degree of protection test)
• temperatur stability:    -40°C to +120°C (in the blocked condition)
• dust proofness after 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. 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 identically sizes, former cable glands can easily be renewed 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 Colour: (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 colour 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 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 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 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 colour for thread Connecting thread length For cables diameters in mm GH02/KVDAE/M20/Me brass 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 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 M20x1,5 10mm 06 – 13 GH02/KVDAE/M25/4e stainless steel V4A M25x1,5