Pressure Compensation Seals – Special Products for Special Requirements (Part 4)

Pressure Compensation Seals are needed wherever requirements are especially high, for instance with regard to size and mechanical protection. Today I would like to talk about our special PCS products.

Small but impressive – Mini Pressure Compensation Seals:
There is a clear trend towards “small and lightweight” in the technical industries, including the automotive sector. However, even the smallest components have housings that need ventilation. Reliable protection of these housings is again ensured by tiny membranes.

Pressure Compensation Seals are available with outer diameters of 4 mm (4 mm/1.5 mm inner diameter) and 3 mm (3 mm/1.2 mm inner diameter).

These self-adhesive Pressure Compensation Seals are ready for easy and quick application to the component. However, standard equipment is not suitable for processing these smallest PCSs. Schreiner Group met this challenge and offers an optional dispenser for the reliable application of 3 mm PCSs.

Maximum protection – full function: PCS HighProtect
The PCS HighProtect is especially resistant to environmental influences. It is even resistant to steam-jet cleaning and still functions reliably at temperatures around -70°C. Contrary to standard membranes, which are integrated into injection-molded parts (referred to as caps), Schreiner ProTech’s PCS HighProtect has a very low installation height of only a few tenths of a mm. There is no need to mechanically affix the PCS by means of a thread or opening, thus making tedious housing adaptations unnecessary. The PCS HighProtect has several functional layers. At the heart of the PCS is the integrated membrane, which is oil and water repellent. A special channel system ensures the ventilation of the component. The thickest layer on top of the composite material consists of our special HighProtect film, which reliably shields the membrane against mechanical abrasion while additionally supporting ventilation with roof-shaped embossing.

Benefits of the PCS HighProtect at a glance:

  • The PCS HighProtect is lightweight. Integration into a component is easy thanks to its compact design. At the same time, it provides full protection (IP protection classes IP67, IP68, IPX9K).
  • In addition, housings can easily be prepared to receive the PCSs – they simply need a small cavity. Wall thickness and size of the ventilation hole remain unchanged.
  • Automated application of the PCSs from reels onto the components using a dispensing system results in short cycle times. Last but not least: the product offers price benefits compared to standard solutions.

Make one out of two – PCS embedded into nameplate:
Many products require pressure compensation as well as labeling. Why not combine both features in one product?

Processing nameplate and PCS in one process step helps to lower the customer’s process times and process costs by up to 40%. Therefore, the PCS embedded in the nameplate offers a cost-effective alternative to standard solutions.

Pressure Compensation Seals can be integrated into a nameplate (which is either imprinted or can be subsequently imprinted by TTR printing) or laser printed.

The advantages of combining nameplate and Pressure Compensation Seals include:

  • optimum utilization of the available surface since nameplate and pressure compensation are combined in one part
  • significant reduction of costs and process times
  • reduced material consumption
  • less investment for equipment
  • minimal installation height: flexible and space-saving application
  • automated assembly process embedded into the production chain

The PCS embedded in the nameplate is ideal for electronics housings that need to be labeled with a nameplate. There are many typical fields of application in the automotive and electronics industries as well as in medical technology.

In part 5 of this blog series I will show you further examples of applications, such as PCSs in avalanche beacons.

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This post is also available in: German