Contamination-Safe Protection for Drinking Water Pipes
Application Design
Cleanliness Compliance
Process Reliability
In drinking water infrastructure applications, even minor contamination can compromise water quality, safety, and compliance with strict supplier standards.
This case study illustrates how an inner protection solution equipped with breathable membrane was developed to protect PEHD drinking water pipes against dust, microorganisms, and external contaminants, while still allowing pressure equalization caused by temperature changes. The solution ensures secure handling, storage, and transport - safeguarding water hygiene from pipe production through to final installation.
About Our Partner
A leading supplier supporting water and infrastructure applications where hygiene, quality, and product integrity are critical. The company operates under strict standards designed to ensure safe and reliable performance throughout the supply chain.
Challenges
Strict Water Safety Requirements
Drinking water pipes must remain fully protected against contamination from dust, soil, microorganisms, and other external particles during storage and transport.
Ventilation Without Contamination
Pipes require pressure equalization due to temperature changes. Traditional vent holes, however, posed a risk of allowing contaminants to reach the inner surface.
Premium Product Expectations
The customer required a high-quality, tested solution that met elevated safety expectations and could be implemented across multiple production sites.
Our Solutions
NA-Range Inner Protection with Breathable Membrane
DBI developed a dedicated NA-range end-cap solution suitable for pipe diameters from 50 mm to 400 mm, integrating a breathable membrane that:
- Prevents contaminants from entering the pipe
- Allows controlled pressure equalization
- Protects the inner surface throughout logistics and storage
Application-Specific Engineering
Value-Added Services
Beyond part design and manufacturing, DBI provided:
Testing and validation support
Testing and evaluation performed to verify membrane functionality, contamination prevention, and resistance to relevant environmental influences.
Extended product range customization
Expansion of the standard NA‑range to cover pipe diameters from 50 to 400 mm, enabling consistent protection across multiple product variants.
Implementation guidance for industrial pipe production
Support during rollout to ensure reliable integration into existing manufacturing and logistics processes.
Results & Impact
Validated Performance and Production Readiness
Structured testing and evaluation confirmed that the solution reliably protected the inner surface of drinking water pipes while maintaining controlled ventilation. Key findings from the validation phase included:
Long‑term testing
No contamination detected on inner pipe surfaces
Breathable membrane performance unaffected by UV exposure
No material degradation or functional failure observed during testing
Based on validated results, the solution was approved for series production and implemented across multiple production locations, ensuring consistent quality standards and compliance requirements.
The project strengthened DBI's premium portfolio for demanding industrial applications, reinforced confidence in safety-critical environments, and provided reliable protection during transport and storage while maintaining effective pressure equalization.
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