EN 1253-8:2022

SLOVENSKI STANDARD
01-januar-2023
Odtoki v stavbah - 8. del: Talni odtoki s kombinirano mehansko smradno zaporo in
zaporo vode
Gullies for buildings - Part 8: Trapped floor gullies with combined mechanical closure and
water seal
Abläufe für Gebäude - Teil 8: Bodenabläufe mit Geruchverschluss mit mechanischem
Geruchverschluss und Wassergeruchverschluss
Avaloirs et siphons pour bâtiments - Partie 8 : Siphons de sol combinant un système
d'obturation mécanique et une garde d'eau
Ta slovenski standard je istoveten z: EN 1253-8:2022
ICS:
91.140.80 Drenažni sistemi Drainage systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1253-8
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2022
EUROPÄISCHE NORM
ICS 91.140.80
English Version
Gullies for buildings - Part 8: Trapped floor gullies with
combined mechanical closure and water seal
Avaloirs et siphons pour bâtiments - Partie 8 : Siphons Abläufe für Gebäude - Teil 8: Bodenabläufe mit
de sol combinant un obturateur mécanique et une Geruchverschluss mit mechanischem Geruchverschluss
garde d'eau und Wassergeruchverschluss
This European Standard was approved by CEN on 26 September 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1253-8:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Design and construction . 8
4.1 General. 8
4.2 Appearance . 8
4.3 Apertures in gratings . 8
4.4 Resistance of trap with mechanical closure and water seal to pressure . 9
4.4.1 Requirements . 9
4.4.2 Test method . 9
4.5 Blockage prevention . 10
4.5.1 Access for cleaning . 10
4.5.2 Clogging test . 11
4.6 Places of installation . 13
4.7 Materials . 13
4.8 Thermal behaviour of floor gullies . 13
4.8.1 General. 13
4.8.2 Requirements . 13
4.8.3 Test method . 13
4.8.4 Additional test for floor gullies for use with sheet floor coverings and liquid applied
membranes . 14
4.9 Tightness . 15
4.9.1 Odour-tightness . 15
4.9.2 Watertightness of bodies . 16
4.9.3 Watertightness of extensions . 16
4.10 Mechanical strength . 17
4.10.1 Loading strength . 17
4.10.2 Clamping ring strength . 19
4.10.3 Additional mechanical strength according to the installation . 20
4.10.4 Floor gullies for use with liquid applied membranes . 23
4.11 Flow rates . 23
4.11.1 Requirements . 23
4.11.2 Test method . 24
4.11.3 Test arrangement . 24
5 Allocation and sequence of tests . 25
6 Marking . 27
7 Evaluation of conformity . 27
Annex A (normative) Examples of top view of the positioning of shape of test blocks applied
on the gratings . 28
Annex B (normative) Test solutions . 30
Bibliography . 32

European foreword
This document (EN 1253-8:2022) has been prepared by Technical Committee CEN/TC 165 “Waste water
engineering”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2023, and conflicting national standards shall be
withdrawn at the latest by April 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Within its program of work, Technical Committee CEN/TC 165 requested CEN/TC 165/WG 11 “Gratings,
covers and other ancillary components for use inside buildings” to prepare the following standard:
EN 1253-8, Trapped floor gullies with combined mechanical closure and water seal.
The EN 1253 series under the main title Gullies for buildings will actually consist of the following parts:
— Part 1: Trapped floor gullies with a depth water seal of at least 50 mm;
— Part 2: Roof drains and floor gullies without trap;
— Part 3: Evaluation of conformity;
— Part 4: Access covers;
— Part 5: Gullies with light liquids closure;
— Part 6: Trapped floor gullies with a depth of water seal less than 50 mm;
— Part 7: Trapped floor gullies with mechanical closure;
— Part 8: Trapped floor gullies with combined mechanical closure and water seal.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
1 Scope
This document classifies floor gullies for domestic wastewater for use inside buildings, gives guidance,
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 combined mechanical closure and water seal (referred to as floor
gullies).
NOTE Floor gullies with combined mechanical closure and water seal are not covered by EN 1253-1,
EN 1253-6, EN 1253-7.
These products are intended to be installed where both condition below are fulfilled:
— the building does not exceed a ground-floor and three floors above;
— infrequent use could result in a water seal evaporating.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 476, General requirements for components used in drains and sewers
EN 1253-3, Gullies for buildings — Part 3: Evaluation of conformity
EN 16323, Glossary of wastewater engineering terms
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 16323 and the following apply.
3.1
trapped floor gully
discharge fitting the top of which is a grating or cover capable of installation at ground or floor level,
intended to receive wastewater either through apertures in the grating and/or channels joined to the
body of the gully and to drain that wastewater through the outlet
Note 1 to entry: Four generic types of floor gullies are shown in Figure 1.
Note 2 to entry: In this document, the term “trapped floor gully” includes linear products, such as channel drains.
a) Floor gully with flange for bonding b) Floor gully with flange for clamping
waterproofing membranes (example) membranes (fixed and loose flange)
(example)
c) Floor gully with flange for clamping d) Channel drain with flange for bonding
flexible flooring (e.g. PVC flooring) (example) liquid applied membranes (example)
Key
1 finished floor 10 weep hole
2 grating/cover 11 flange for bonding membranes
3 extension 12 sediment bucket
4 mechanical closure 13 connecting flange with counter flange
5 trap with water seal a fixed flange
6 depth of water seal (H) b loose flange
7 outlet 14 flange for clamping flexible flooring with a clamping ring
8 body 15 seal
9 access for cleaning 16 flange for bonding liquid applied membrane
Figure 1 — Examples of four generic types of floor gullies according to this standard
3.2
grating
removable component with apertures which permits the discharge of water
3.3
frame
support for a grating or cover which is connected to a body either directly or by means of a membrane
clamping ring or an extension
3.4
cover
removable part of an access cover which covers the opening
3.5
body
part of a floor gully below or in the floor on which the grating/frame/extension
...