EN 1253-2003 建筑物用集水沟(系列标准).pdf

BRITISH STANDARD BS EN 1253-1:2003 Gullies for buildings Part 1: Requirements The European Standard EN 1253-1:2003 has the status of a British Standard ICS 91.140.80 ? BS EN 1253-1:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 23 June 2003 BSI 23 June 2003 ISBN 0 580 42134 1 National foreword This British Standard is the official English language version of EN 1253-1:2003. It supersedes BS EN 1253-1:1999 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/505, Waste water engineering, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1253-1 May 2003 ICS 91.140.80Supersedes EN 1253-1:1999 English version Gullies for buildings - Part 1: Requirements Avaloirs et siphons pour btiments - Partie 1: Spcifications Ablufe fr Gebude - Teil 1: Anforderungen This European Standard was approved by CEN on 20 February 2003. 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 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1253-1:2003 E EN 1253-1:2003 (E) 2 Contents page Foreword3 1Scope 3 2Normative references 3 3Terms and definitions4 4Loading strength7 5Places of installation .8 5.1General8 5.2Exceptions8 6Nominal sizes.8 7Materials8 8Design and construction.9 8.1General9 8.2Appearance.9 8.3Depth of water seal9 8.4Resistance of water seal to pressure 9 8.5Apertures in gratings.9 8.6Blockage prevention: trapped gullies10 8.6.1Access for cleaning.10 8.6.2Self-cleansing capacity.10 8.6.3Anti-blockage .10 8.7Side inlets.10 8.8Thermal behaviour.10 8.8.1Temperature cycling for floor gullies 10 8.8.2Additional mounting conditions and test conditions for gullies for use with sheet floor covering10 8.8.3Roof outlets11 8.8.4Behaviour when exposed to hot bitumen or asphalt.11 8.9Tightness11 8.9.1Odourtightness: trapped gullies 11 8.9.2Watertightness for gully bodies.11 8.9.3Gullies and roof outlets for use with a membrane.11 8.9.4Gullies for use with a sheet floor covering.11 8.9.5Gullies with factory fixed skirt membrane 11 8.9.6Watertightness for extensions .12 8.10Mechanical strength 12 8.10.1Extensions for gullies for use with sheet floor covering.12 8.10.2Membrane clamping ring 12 8.10.3Gullies with factory affixed skirt membrane.12 8.11Flow rates .12 8.11.1Water through the grating.12 8.11.2Water through the grating and side inlets.13 8.11.3Water through the side inlet .13 8.12Roof outlets for siphonic drainage systems.13 8.12.1Fitness for the purpose.13 8.12.2Coefficient of hydraulic loss.13 9Marking .14 10Quality control14 Annex A (informative) A-Deviation 15 EN 1253-1:2003 (E) 3 Foreword This document (EN 1253-1:2003) has been prepared by the Technical Committee CEN/TC 165 “Wastewater 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 November 2003, and conflicting national standards shall be withdrawn at the latest by November 2003. This document supersedes EN 1253-1:1999. Annex A is informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. 1 Scope This standard classifies gullies, gives guidance for places of installation and specifies requirements for the con- struction, design, performance and marking of factory made gullies for buildings, irrespective of material, for use in drainage systems operating under gravity including siphonic systems. NOTEAlthough normally used to convey domestic wastewater, industrial wastewater and rainwater, gullies can convey other wastewater provided there is no risk of damage to components or of injury to health. This standard does not apply to gully tops and manhole tops which are specified in EN 124. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 124, Gully tops and manhole tops for vehicular and pedestrian areas - Design requirements, type testing, marking, quality control EN 476, General requirements for components used in discharge pipes, drains and sewers for gravity systems. prEN 1253-2:2002, Gullies for buildings Part 2: Test methods. EN 1253-3, Gullies for buildings Part 3: Quality control. EN 1253-1:2003 (E) 4 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 gully discharge fitting the top of which is a grating or cover capable of installation at ground, floor or roof level, intended to receive wastewater either through apertures in the grating and/or from pipes connected to the body of the gully (see figure 1) NOTEA gully can include an integral trap and a sediment bucket (see figure 2). 3.2 side inlet gully gully with one or more integral inlets for underfloor or underground connections (see figure 2) 3.3 roof outlet non-trapped gully, used in a roof (see figure 3) NOTEA roof outlet can include an anti-vortex device. Key 2Membrane clamping ring 4Grating/cover and frame 5Spigot 6Body 8Membrane 10Extension 12Sheet floor covering Figure 1 Gully, non-trapped (typical example) EN 1253-1:2003 (E) 5 Key 1Finished floor 3Sediment bucket 4Grating/cover and frame 5Spigot 6Body 7Side inlet 8Membrane 9Access for cleaning 11Connecting flange 14Depth of water seal Figure 2 Side inlet gully, trapped (typical example) Key 4Grating/cover and frame 6Body 8Membrane 11Connecting flange 13Roof layer Figure 3 Roof outlet (typical example) EN 1253-1:2003 (E) 6 3.4 grating removable component with apertures which permit the discharge of wastewater 3.5 frame support for a grating or cover which is connected to a body either directly or by means of a membrane clamping collar or an extension 3.6 cover removable part of an access cover which covers the opening 3.7 body part of a gully below or in the floor, ground or roof on which the grating/frame/extension is mounted, and to which pipework is connected 3.8 extension component used to adjust the height of a grating or cover above a body 3.9 membrane clamping ring component used to clamp a membrane or a sheet floor covering to a body or extension 3.10 joint connection between the adjacent ends of two components including the means of sealing 3.11 connecting flange separate or an integral part of a body or of an extension which receives a membrane or sheet floor covering 3.12 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 3.13 external diameter mean external diameter of the pipe barrel at any cross section 3.14 internal diameter mean internal diameter of the pipe barrel at any cross section 3.15 gravity drainage system system where flow is caused by gravity and where the pipe normally operates partially full 3.16 trap removable or integral part of the body which prevents, by means of water seal the passage of foul air from the outlet to the inlet 3.17 depth of water seal effective height of water in the trap (h) which prevents the passage of foul air (see figure 2) 3.18 domestic wastewater non-faecal wastewater discharged from appliances in kitchens, laundry rooms, lavatories, bathrooms and similar facilities EN 1253-1:2003 (E) 7 3.19 industrial wastewater wastewater resulting wholly or partially from any industrial or commercial activity 3.20 sheet floor covering flexible watertight finished layer for floors affixed to the flange by bonding and/or by means of a clamping ring 3.21 membrane watertight and/or damp proof layer attached to the gully either in the floor or on the floor or roof 3.22 head of water distance a of a water line over the spill edge of the gully as shown in figure 4 Figure 4 Head of water 3.23 siphonic drainage system system for drainage of rainwater in which the outlets and pipework enable the system to flow completely full under design conditions and make use of the total height available between the outlets and the point of change to partially filled flow 4 Loading strength Gullies are classified by loading strength, when tested in accordance with prEN 1253-2:2002, clause 4 into following classes: H 1,5, K 3, L 15, M 125. Gullies not accessible to either vehicular or foot traffic or not required to withstand external loads are not classified. EN 1253-1:2003 (E) 8 5 Places of installation 5.1 General A guide for selecting the class of gully appropriate to the place of installation is given below. The selection of the appropriate class is the responsibility of the specifier. Class H 1,5 Unused flat roofs such as felt-and-gravel roofs, gravel fill roofs and similar. Class K 3 Areas without vehicular traffic, such as bathrooms in dwellings, old peoples homes, hotels, schools, swimming baths, public wash and shower facilities, balconies, loggias, terraces and roofs with greenery. Non-load bearing gullies in bathrooms shall fulfill the requirements of class H 1,5. Class L 15 Areas with light vehicular traffic, excluding fork-lift trucks, in commercially used premises. Class M 125 Areas with vehicular traffic, such as car parks, factories and workshops. Class C 250 to F 900 gullies and tops conforming to EN 124 shall be used for all areas subject to special stresses, such as exhibition halls, market halls, factory sheds and aircraft hangars. 5.2 Exceptions Non-load bearing gratings for places of installation, which are not accessible to vehicles and pedestrians (protected by suitable masonry surroundings) and which are not covered by the places of installation listed above nor by EN 124, shall at least conform to the test requirements given in prEN 1253-2:2002, clause 4, Class H 1,5. 6 Nominal sizes Recommended nominal sizes are defined by internal diameter of outlet (DN/ID) and by external diameter of outlet (DN/OD) as follows. Nominal sizes DN/ID: 30; 40; 50; 70; 75; 100; 125; 150; 200 Nominal sizes DN/OD: 32; 40; 50; 63; 75; 90; 100; 110; 125; 160; 200 NOTEOther nominal sizes which are at present in use are permissable, but they may be reconsidered in the future. 7 Materials Materials shall withstand domestic wastewater up to a temperature of 95 C and industrial wastewater as specified by the specifier. Materials for roof outlets shall be resistant to rainwater, UV radiation, local climatic conditions and, when needed, to hot bitumen. Materials shall withstand the stresses likely to occur during installation and operation. Gullies made of materials which are not inherently corrosion-resistant shall be protected by corrosion prevention treatment. EN 1253-1:2003 (E) 9 8 Design and construction 8.1 General Gullies shall be capable of being connected to pipework systems covered by relevant European Standards and, when installed in accordance with the manufacturers instructions, shall form an integral part of the building. There shall be no movement possible between the gully and the floor or roof construction, which would impair the functioning of the installed gully. In areas where pressure testing of the pipe system is necessary gullies for use in the ground floor shall enable such test to be performed. The upper surfaces of frame and grating shall be flush, except in unused flat roofs. When in position, it shall not be possible for gratings and covers to be dislodged from the frame, but they shall be easy to release. Bell traps shall be prevented from floating or becoming displaced by a design feature such as fixing or weight. Gullies and their components shall be resistant to normal actions of mechanical, chemical and thermal character. Gullies shall be delivered with installation instructions. All joints to and from the gully shall be designed to be watertight in accordance with EN 476. 8.2 Appearance Internal and external surfaces shall be free from sharp edges and imperfections which could impair functioning of the gully or give risk of injury to persons. 8.3 Depth of water seal Trapped gullies for wastewater shall provide a minimum depth of water seal of 50 mm and shall be tested in accordance with prEN 1253-2:2002, 5.1. 8.4 Resistance of water seal to pressure When tested in accordance with prEN 1253-2:2002, 5.2 the applied pressure which just causes passage of air shall be 400 Pa. Gullies with sediment buckets with water seals of a depth of 60 mm are deemed to satisfy this requirement. 8.5 Apertures in gratings Apertures can be holes or slots of any shape. Permissible aperture dimensions for gratings are given in table 1. Table 1 Apertures in gratings Dimensions of apertures in gratings ClassMinimum mm Maximum mm H 1,5a K 3 L 15b M 125b 6 6 6 6 15 10 (max. 8 mm in barefoot areas) 15 (max. 8 mm in barefoot areas) 25 a) Where a gravel guard is incorporated the maximum can be up to 25 mm. b) In commercially used premises, gratings may also be used with apertures up to 31 mm x 31mm. In commercially used premises, gratings may also be used with apertures up to 31 mm 31 mm. EN 1253-1:2003 (E) 10 Gratings for installation in unused flat roofs shall project not less than 30 mm above the roof covering. If the height of any subsequent surfacing cannot be specified, the grating shall project not less than 70 mm above the connecting surfaces. Dimensions shall be tested in accordance with prEN 1253-2:2002, clause 6. NOTEWhere situation dictates appropriate means can be provided to prevent the ingress of fine particles such as gravel into a roof outlet. 8.6 Blockage prevention: trapped gullies 8.6.1 Access for cleaning Trapped gullies should have provision for mechanical cleaning of the outlet pipe systems leading to and from the gully. When an opening with an airtight and watertight cover or plug is provided, the clear diameter of such opening shall not be less than 32 mm in a gully having a nominal outlet size of DN 110 or below, and not less than 50 mm in a gully of nominal outlet size DN 125 to DN 200. Any opening provided for mechanical cleaning shall be tested in accordance with prEN 1253-2:2002, 7.1. 8.6.2 Self-cleansing capacity The self-cleansing capacity of gullies which cannot be cleaned when installed by removing the trap, or by an access for cleaning according to 8.6.1 shall be tested in accordance with prEN 1253-2:2002, 7.2. When tested in accordance with prEN 1253-2:2002, 7.2, the expelled volume of glass beads for each of the flow rates in the interval between 0,3 l/s and 0,6 l/s shall be greater than that indicated by the straight line between the two end points 0 % at 0,3 l/s and 50 % at 0,6 l/s. Expulsion of glass beads shall commence at a flow rate less than 0,3 l/s, and at least 50 % of the glass beads shall have been expelled at a flow rate of 0,6 l/s. 8.6.3 Anti-blockage Gullies and their components shall not be liable to clogging. Gullies with gratings or covers removed shall