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We take the pressure off

Being a pioneer in the development of breathable cable glands, WISKA today is an expert for breathable components avoiding condensation.

With the launch of the VentGLAND® in 2007, the world's first cable gland with pressure equalization, WISKA set new benchmarks. VentGLAND® cable glands and VentPLUG pressure equalization units are nowadays being used around the world, especially in sectors that are moisture and temperature sensitive such as shipping, and the lighting and solar industries.

Learn more about our Venting product range.

Your benefits with Venting products by WISKA

Your benefits with Venting products by WISKA

  • Effective pressure equalization
  • Protection against condensation
  • Protection against contaminants
  • High operational safety
  • Increased profitability
  • Wide product range
  • Ideal for roughest conditions
  • Highest product quality

Solutions for every application

The diversity of our products provide venting solutions for a broad range of applications. Thread sizes include M 12 to M 63 with a wide range of materials such as polyamide, brass and stainless steel. Completed by their high protection classes of IP 68 and 69K, venting products by WISKA appear to be true multitalents. On top of that, they have application specific membranes with different air flow rates and robust properties such as resistance to UV, salt water and aggressive chemicals.

WISKA offers many years of experience and working with customers to provide solutions that meet any individual requirements. You may also use our venting calculator to compute the optimal application of our pressure equalization products.

Our VentGLAND® Cable glands

Our VentGLAND® Cable glands

The VentGLAND® combines pressure equalization and cable gland in a single unit and features high air flow rates as well as high water protection capacity.

The breathable VentGLAND® cable glands are a part of the tried and tested modular SPRINT system. The VentGLAND® can easily be used to replace standard cable glands due to its identical clamping ranges and compatibility with all cap nuts and ranges of multiple and special sealing inserts. The product portfolio is rounded off with VentGLAND® cable glands with EMC-inserts for protection against electromagnetic interference.

Our new VentPLUG Pressure equalization units

Our new VentPLUG Pressure equalization units

The VentPLUG is used when a cable gland with an additional pressure equalization unit is required to vent the enclosure.

Pressure equalization units from WISKA are now also available in thread sizes M 20 and M 40, in addition to M 12. Both feature a flat, space-saving design to enable flexible usage. Thanks to an improved membrane, the air flow rate of the new VentPLUG in the sizes M 20 and M 40 has more than doubled. The high air flow version even achieves a 2.5 times higher value.

Why Venting?

Why Venting?

Moisture and dirt are prevented from entering the enclosure. Air molecules are able to penetrate both sides of the membrane.

Hermetically sealed enclosures are insufficient to protect electrical installations from moisture and contaminants. Fluctuating temperatures and environmental factors, especially during outdoor usage, create pressure inside tightly sealed enclosures. This leads to a build-up of condensation as well as damage to the seal that can result in the penetration of moisture and dirt.

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Our products of the Venting series

Cable glands with pressure equalisation

Breathable cable glands that work against the formation of condensation

Electrical installations and moisture do not go well together. They lead to power failures in electrical casings, sensors and electrical devices. The danger of short circuits – and thus electrical breakdowns, shortages and disruption of operation – increases wherever there is water. In order to find a solution to this problem, it is necessary to understand how condensation forms.

How does condensation form?

Pressure, temperature and air moisture are constantly changing. Even electrical installations, which must be secured in sealed casings in order to be protected against moisture, are subject to the formation of condensation. The reason: Whether caused by climate or operational conditions, fast fluctuations in temperatures create a disparity in pressure between the inside and outside of the casing. This happens when there is rain, wave impact or entry to a tunnel. Because of the vacuum inside the casing, moist air from outside is sucked in, i.e. through the casing’s seal. Inside the casing, the moist air condenses and causes corrosion or a short circuit.

The ideal solution is pressure equalisation

In the past, expensive, high-maintenance electric heating and ventilation systems were installed in order to prevent condensation from forming in the casing. Drip holes in the casings are a less expensive alternative, albeit at the expense of water-tightness and, thus, a high protection rating. The ideal solution is to eradicate the internal and external pressure disparity which causes the formation of condensation. WISKA was the first to develop and produce a water-tight, yet breathable cable gland for pressure equalisation and ventilation.

How does condensation enter the casing?

How does condensation enter the casing?

1. The casing becomes warm when in use.
2. There may be a temperature difference between the inside and outside of the casing at night or after being shut off. The temperature difference creates a vacuum which causes air to flow in from the outside.
3. If the air inside of the casing cools down and pressure equalisation does not occur, condensation will form and become trapped which can cause an electrical breakdown or short circuit.

How does pressure equalisation work?

How does pressure equalisation work?

By using the breathable cable gland VentGLAND® and/or the pressure equalisation plug VentPLUG, the pressure inside of the casing can be adjusted to the surrounding pressure. The casing’s verified protection class is fully guaranteed.

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Stand: 24.04.2018 20:04:00