catalogue - Düker GmbH & Co KGaA

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Inside and outside protection
Flanged pipes and fittings can be supplied with the following coatings and linings:
1. Cement mortar lining
The cement mortar lining is acc. to DVGW-data sheet W 347 and W 270 resp. DIN EN 545
or DIN EN 598
• to avoid corrosion
• to avoid sediments and to advantage the continuous hydraulic features.
2. Enamelled (glass-lined) – lining and coating
Enamel is an effective protection against corrosion, abrasion and incrustation. A non detachable,
chemical bounding to the cast iron avoids corrosion by undercutting. The layer thickness after
application ( temperature ≈ 800 ° ) is between 200 µ and 500 µ.
3. Epoxy resin – lining and coating
The coating is acc. to RAL-GZ 662 with hot melted epoxy powder. The demands of DIN EN 14901
(pressure pipes and fittings) as well as of DIN 30677 T.2 (heavy corrosion protection for valves)
are fulfilled.
4. Special coatings (outside)
Different coatings on request.
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