1、BSI Standards PublicationBS EN 1253-2:2015Gullies for buildingsPart 2: Roof drains and floor gullies withouttrapBS EN 1253-2:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1253-2:2015.This document, together with BS EN 1253-1:2015, supersedes BS EN1253-1:2
2、003 and BS EN 1253-2:2003, which are withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/505, Wastewater engineering.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all t
3、he necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 78398 2ICS 91.140.80Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standa
4、rd was published under the authority of theStandards Policy and Strategy Committee on 31 January 2015.Amendments issued since publicationDate Text affectedBS EN 1253-2:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1253-2 January 2015 ICS 91.140.80 Supersedes EN 1253-1:2003, EN 1253-2:2003
5、English Version Gullies for buildings - Part 2: Roof drains and floor gullies without trap Avaloirs et siphons pour btiments - Partie 2 : Avaloirs de toiture et avaloirs/siphons de sol sans garde deau Ablufe fr Gebude - Teil 2: Dachablufe und Bodenablufe ohne Geruchverschluss This European Standard
6、was approved by CEN on 22 November 2014. 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 suc
7、h 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
8、 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, Former Yugoslav Republic of Macedonia, France, Germany, G
9、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMU
10、NG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1253-2:2015 EBS EN 1253-2:2015EN 1253-2:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4
11、 3 Terms and definitions .4 4 Requirements .9 4.1 Design and construction .9 4.2 Places of installation 10 4.3 Materials 11 4.4 Watertightness 11 4.5 Mechanical strength . 11 4.6 Flow rates 11 4.7 Additional requirements in relation to the installation . 13 5 Test methods . 15 5.1 Dimensions of aper
12、tures in gratings 15 5.2 Water tightness for roof drain and floor gully bodies and extensions . 15 5.3 Loading test . 15 5.4 Mechanical strength . 19 5.5 Flow rates 20 5.6 Tightness of roof drains and floor gullies for use with sheet floor coverings, membranes or liquid applied membranes . 30 5.7 Be
13、haviour when exposed to hot bitumen or asphalt 31 5.8 Determination of resistance in climatic influences . 31 5.9 Temperature cycling test . 32 6 Allocation and sequence of tests 32 7 Marking 32 8 Evaluation of conformity 33 Annex A (normative) Sequence of the tests 34 Annex B (informative) A-deviat
14、ion 35 Bibliography . 36 BS EN 1253-2:2015EN 1253-2:2015 (E) 3 Foreword This document (EN 1253-2:2015) 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, eith
15、er by publication of an identical text or by endorsement, at the latest by July 2015 and conflicting national standards shall be withdrawn at the latest by July 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENE
16、LEC shall not be held responsible for identifying any or all such patent rights. This document, together with EN 1253-1:2015, supersedes EN 1253-1:2003 and EN 1253-2:2003. This is the second part in EN 1253, a series of standards relating to floor gullies, roof drains and access covers for drainage
17、systems inside buildings. 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 of water seal of at least 50 mm; Part 2: Roof drains and floor gullies without trap; Part 3: Evaluation of conformity; Part
18、 4: Access covers; Part 5: Gullies with light liquids closure. Since the latest versions of EN 1253-1 and EN 1253-2 the most significant technical changes are the following: a) reduction of scope on roof outlets and floor gullies without trap including parapet and emergency drains for use in gravity
19、 and siphonic drainage systems; b) more definitive description of products; c) modification of terms and definitions; d) precision in definition of places of installation; e) consideration of liquid applied membranes as connecting components; f) precision of test conditions for flow rate testing for
20、 different types of products; g) revision of loading test concerning test loads, loading speed as well as shape, size and point of impact of test blocks in dependence on different configuration of gratings; h) introduction of classification of products concerning their temperature cycling behavior a
21、ccording to number of hot/cold water cycles. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Forme
22、r Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1253-2:2015EN 1253-2:2015 (E) 4 1 Sc
23、ope This European Standard classifies roof drains and floor gullies without trap for use inside buildings, gives guidance for places of installation and specifies requirements for the construction, design, performance and marking as well as test methods of factory made roof drains and floor gullies
24、without trap (further: floor gullies) for buildings, irrespective of the material for use in drainage systems. Although normally used to convey rainwater and wastewater, these roof drains and floor gullies without trap may convey other wastewater provided there is no risk of damage to components or
25、of injury to health. This European Standard does not apply to trapped floor gullies with a depth of water seal of at least 50 mm as specified in EN 1253-1. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its a
26、pplication. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 124, Gully tops and manhole tops for vehicular and pedestrian areas Design requirements, type testing, marking, quality contr
27、ol EN 476, General requirements for components used in drains and sewers EN 1253-3, Gullies for buildings Part 3: Evaluation of conformity 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 roof drain non-trapped discharge fitting for the draina
28、ge of surface water from roof, balcony and terrace surfaces via a rainwater connecting pipe Note 1 to entry: See Figure 1. Note 2 to entry: A roof drain can include an anti-vortex device. 3.2 parapet drain roof drain for the drainage of flat roofs and roof terraces with a fascia which penetrates the
29、 fascia Note 1 to entry: See Figure 2. 3.3 emergency drain roof drain for emergency drainage in the form of a roof, parapet or gutter outlet with or without a rainwater connection pipe BS EN 1253-2:2015EN 1253-2:2015 (E) 5 Key 1 grating/frame, leaf/gravel trap 2 liquid applied roof waterproofing kit
30、 or flexible sheet for waterproofing 3 extension 4 seal 5 connecting flange 6 body 7 outlet Figure 1 Roof drain (example) BS EN 1253-2:2015EN 1253-2:2015 (E) 6 Key 1 grating 2 body 3 connecting flange 4 liquid applied roof waterproofing kit or flexible sheet for waterproofing 5 outlet (round or rect
31、angular) Figure 2 Parapet drain (example) 3.4 gravity drainage system system where flow is caused by gravity and where the pipe normally operates partially full 3.5 siphonic drainage system system for drainage of rainwater in which the outlets and pipework enable the system to flow completely full u
32、nder design conditions and make use of the total height available between the outlets and the point of change to partially filled flow 3.6 head of water depth h of a water line over the spill edge of the roof drain or floor gully as shown in Figure 3 Key h head of water Figure 3 Head of water 3.7 gr
33、ating removable component with apertures which permit the discharge of water BS EN 1253-2:2015EN 1253-2:2015 (E) 7 3.8 frame support for a grating or cover which is connected to a body either directly or by means of a flexible sheet for waterproofing clamping ring or an extension 3.9 cover removable
34、 part of an access cover which covers the opening 3.10 body part of a roof drain or floor gully below or in the floor, ground or roof on which the grating/frame/extension is mounted, and to which the pipework is connected 3.11 extension component used to adjust the height of a grating or cover above
35、 a body 3.12 joint connection between the adjacent ends of two components including the means of sealing 3.13 flexible sheet for waterproofing clamping ring component used to clamp a flexible sheet for waterproofing to a body or extension 3.14 connecting flange separate or an integral part of a body
36、 or of an extension which receives a flexible sheet for waterproofing or the liquid applied roof waterproofing kit 3.15 external diameter OD mean external diameter of the pipe barrel at any cross section 3.16 internal diameter ID mean internal diameter of the pipe barrel at any cross section 3.17 li
37、quid applied roof waterproofing kit LARWK particular combination of a defined set of components to be installed in liquid form for roof waterproofing by application and/or incorporation and/or joining of the components in accordance with particular design methods Note 1 to entry: The liquid applied
38、watertight covering is usually a paste-like composite material or a combination of separate materials that can be poured, spread or sprayed on the subsurface by brush, roller or similar suitable applicator. 3.18 flexible sheet for waterproofing factory made sheet for prevention of passage of water f
39、rom the plane to another which can be rolled up or folded for easy transport to the site BS EN 1253-2:2015EN 1253-2:2015 (E) 8 3.19 untrafficked roof roof consisting of the structural deck and all the layers on it, including waterproofing, insulation and a surface protective layer not designed for f
40、oot traffic above that required for maintenance 3.20 pedestrian access roof roof consisting of the structural deck and all the layers on it, including waterproofing, insulation and a surface protective layer designed for foot traffic and gathering of people greater than that required for maintenance
41、 3.21 green roof roof consisting of the structural deck and all the layers on it, including waterproofing, insulation and a thin layer of growing medium planted with vegetation 3.22 roof garden roof consisting of the structural deck and all the layers on it, including waterproofing, insulation and a
42、 substantial layer of growing medium planted with intensive vegetation and possibly paving 3.23 parking deck roof consisting of the structural deck and all the layers on it, including waterproofing, insulation and a surface protective layer designed to withstand and distribute loads produced by the
43、traffic associated with the parking of vehicles 3.24 nominal size DN numerical indication of size which is a convenient integer approximately equal to the internal diameter (DN/ID) or the external diameter (DN/OD) in millimetres 3.25 floor gully without trap discharge fitting the top of which is a g
44、rating or cover capable of installation at ground or floor level intended to receive wastewater through apertures in the grating Note 1 to entry: See Figure 4. Key 1 grating 2 outlet 3 body Figure 4 Floor gully without trap (typical example) BS EN 1253-2:2015EN 1253-2:2015 (E) 9 3.26 wastewater wate
45、r composed of any combination of water discharged from domestic, industrial or commercial premises, surface run-off and accidentally any sewer infiltration water SOURCE: EN 16323:2014, 2.3.10.65 3.27 surface water water from precipitation, which has not seeped into the ground and is discharged to th
46、e drain or sewer system directly from the ground or from exterior building surfaces SOURCE: EN 16323:2014, 2.1.1.3 3.28 clear opening CO diameter of the largest circle that can be inscribed within the unsupported area of the grating 3.29 test load specified load which a component is required to with
47、stand 3.30 outlet male or female connection to the drainage pipe 4 Requirements 4.1 Design and construction 4.1.1 General Roof drains and floor gullies shall be capable of being connected to the pipework system covered by relevant European Standards, and, when installed in accordance with the manufa
48、cturers instructions, shall form an integral part of the building. There shall be no movement possible between the roof drain or floor gully and the floor or roof construction, which would impair the functioning of the installed roof drain or floor gully. The upper surfaces of frame and grating shal
49、l be flush, except in untrafficked roof. When in position, it shall not be possible for gratings and covers to be dislodged from the frame, but they shall be easy to remove for maintenance and cleaning. Roof drains and floor gullies shall be delivered with installation instructions. All pipe joints to and from the roof drain or floor gully shall be designed to be watertight in accordance with EN 476. 4.1.2 Appearance Internal and external surfaces shall be free from sharp edges and imperfections which could impair functioning of the gully or give ri
