- TPE Products
TPE Drinking Water Profiles (KTW-BWGL)
- Product Details
Product Description
KTW-BWGL-compliant TPE profiles are suitable for cold, warm or hot water depending on the tested compound. Hot water under KTW-BWGL refers to testing at 85°C ± 2°C. Higher service temperatures require separate technical approval. Plasticizer-free grades are available; the specific compound and test report are decisive.
- Properties
Properties & Advantages
- ✅ KTW-BWGL evidence for selected compounds
- ✅ Plasticizer-free grades available
- ✅ Cold-, warm- or hot-water category as stated in the test report
- Technical Data
Technical Specifications
| Parameter | Value |
|---|---|
| Evidence | KTW-BWGL for the selected compound and defined temperature category; other evidence only where documented |
| Hot-water category | Tested at 85°C ± 2°C; approve service temperature separately |
| Hardness | Grade-dependent; see data sheet |
Chemical Resistance TPE
| Medium | Resistance |
|---|---|
| Water (cold/warm) | ✅ Good to very good |
| Diluted acids & alkalis | ✅ Good |
| UV radiation | ✅ Good (with stabilizers) |
| Mineral oils / greases | ⚠️ Varies (TPE-V good) |
| Ketone / Ester | ❌ Not resistant |
| Food contact | ✅ FDA/EU-compliant compounds |
- Applications
Typical Application Areas
- ✅ Drinking Water & Sanitary
- ✅ Drinking water — Armaturen, Ventile, Wasserfilter
- ✅ Home appliances — Warmwasserbereiter
- FAQ
Frequently Asked Questions
Why choose TPE rather than EPDM for drinking water?
Both material families can be used with suitable tested grades. Selection depends on temperature, compression set, joining method and the supporting test report.
How do KTW-BWGL and DVGW W 270 differ?
KTW-BWGL covers hygienic requirements including migration, while DVGW W 270 addresses microbial growth. Required evidence depends on the product and application.
Which TPE grade is suitable for hot water?
The KTW-BWGL category stated in the report and the technical data sheet are decisive. The hot-water category is tested at 85°C ± 2°C; higher service temperatures require separate approval.
See Also
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