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Relief valve

Keeps the pressure stable during transport

The customer’s requirement

Punch Powertrain approached us with a complex problem: an airtight and liquid-tight electronics housing to hold the entire control of the automatic transmission. The original part was made fully of metal, and the aim was to transform it into a plastic version. Another supplier was unable to make the product 100% water-tight and failed on this point.

Our challenge

  • Reliability & quality controls
  • Reduced production costs
  • Passes leak test and various pressure tests
  • Resistant to high temperatures and pressure

Relief valve

Our solution

Foods are imported under pressure to extend their shelf life. The valve ensures that the pressure drops if it becomes too high.

We developed a valve that is now used only once, has a silicon seal and a spring. We produce and assemble the product. All this is done in our cleanroom for a clean environment. We also code the valves by date and carry out various functional tests on reliability and quality.

Our product development and quality assurance have ensured that the valve has CE (Conformité Européenne) approval. That means our product meets the set requirements and regulations. We are proud of that!

About Döhler

Döhler is a global producer, marketer and supplier for the food and beverage industry. They make technology-driven natural ingredients, ingredient systems and integrated solutions. Nature and innovative technologies as basic principle along with quality have high priority. This puts them always a step ahead in creating real added value.


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