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The six product types of EN 13564

Backwater valves for through pipes are an ideal technical and, in particular, financial alternative to lifting stations. The usage conditions set out in EN 12056-4 must begiven. According to EN 13564-1, a distinctionis made between six types of backwater valves:

Type 0:

Backwater valve for use in horizontal pipes with single free hanging backwater flap.

Type 1:

Backwater valve for use in horizontal pipes with one automatic closure and one emergency closure, whereby this emergency closure may be combined with the automatic closure.

Type 2:

Backwater valve for use in horizontal pipes with two automatic closures and one emergency closure, whereby this emergency closure may be combined with one of the two automatic closures.

Type 3:

Backwater valve for use in horizontal pipes with one automatic closure operated by external energy (electric, pneumatic or other) and one emergency closure which is independent of the automatic closure.

Type 5:

Backwater valve installed in drain fittings or floor drains, with two automatic closures and one emergency closure, whereby this emergency closure may be combined with one of the automatic closures.

 

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