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DükerModel Type 4004 -Gate Valve

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If plastic pipes are used for water supply, then the valves at least should be made of ductile cast iron – and well coated (for gas) or enamelled (for drinking water). This is precisely the purpose of our gate valves with welding ends made of PE 100. The material transition couplings are tested and monitored in accordance with the relevant DVGW (German Association for Gas and Water Applications) guidelines. The PE welding ends meet the highest mechanical and hygienic material requirements and are suitable for all common welding methods.

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Type 4004 with welding ends made of PE 100.For all instances where cast iron meets plastic.

The PE welding ends are extruded and mechanically processed. They are locked and protected against tension by means of an external axial restraint ring. During welding, the advantage of this design is that the valve can be rotated without affecting the tension protection and impermeability.