Standards Development
This European Standard classifies floor gullies for use inside buildings, gives guidance for places of installation and specifies requirements for the construction, design, performance and marking of factory made gullies for buildings, irrespective of the material, for use in drainage systems requiring a trap with a depth of water seal of less than 50 mm (referred to as floor gullies). Note: Floor gullies with a depth water seal of less than 50 mm are not covered by Part 1, Part 7, Part 8.
These products are intended to be installed only where:
- space limitation will not accommodate a gully with a 50 mm water seal;
- the building does not exceed a ground-floor and three floors above;
- at least two sanitary appliances are installed in addition to the gully but with only one toilet on the same branch (connection pipe);
- or secondary or branch ventilation is installed according to clauses 4.3.2 or 4.3.4 of EN 12056- 2.
Addition to the standard series EN 1253 "Gullies for buildings" of a Part 6 on "Trapped floor gullies with a depth water seal of less than 50 mm" in accordance with the work program of CEN/TC 165.
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