SIST EN 12050-2:2001
(Main)Wastewater lifting plants for buildings and sites - Principles of construction and testing - Part 2: Lifting plants for faecal-free wastewater
Wastewater lifting plants for buildings and sites - Principles of construction and testing - Part 2: Lifting plants for faecal-free wastewater
This part of the European Standard applies to lifting plants for faecal-free wastewater in buildings and sites. It specifies methods for drainage of locations below flood level to prevent any back-flow of wastewater into the building. This part of this European Standard contains general requirements, basic construction and testing principles, together with advice on materials and quality surveillance.
Abwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Bau- und Prüfgrundsätze - Teil 2: Abwasserhebeanlagen für fäkalienfreies Abwasser
Abwasserhebeanlagen für fäkalienfreies Abwasser nach dieser Norm werden für Entwässerungseinrichtungen nach den Richtlinien in EN (WG 21 TG 1) zur rückstausicheren Entsorgung von Ablaufstellen unterhalb der Rückstauebene. Diese Norm enthält allgemeine Anforderungen, Bau- und Prüfgrundsätze sowie Angaben zu Werkstoffen und zur Überwachung. Bau- und Prüfgrundsätze für Rückflußverhinderer für Abwasserhebeanlagen für fäkalienfreies Abwasser siehe EN-F Teil 4.
Stations de relevage d'effluents pour les bâtiments et terrains -Principes de construction et d'essai - Partie 2: Stations de relevage pour effluents exempts de matieres fécales
Les stations de relevage d'effluents exempts de matieres fécales conformes a la présente norme sont installées dans les stations de drainage conformément aux prescriptions EN ... pour le drainage sans reflux de points de drainage situés au-dessous du niveau de reflux. La présente norme comprend des prescriptions générales ainsi que des principes de construction et d'essais et des indications sur les matériaux et la surveillance des installations.
Črpališča odpadne vode za stavbe in zemljišča - Osnove gradnje in preskušanja - 2. del: Črpališča odpadne vode brez fekalij
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Wastewater lifting plants for buildings and sites - Principles of construction and testing - Part 2: Lifting plants for faecal-free wastewaterStations de relevage d'effluents pour les bâtiments et terrains -Principes de construction et d'essai - Partie 2: Stations de relevage pour effluents exempts de matieres fécalesAbwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Bau- und Prüfgrundsätze - Teil 2: Abwasserhebeanlagen für fäkalienfreies AbwasserTa slovenski standard je istoveten z:EN 12050-2:2000SIST EN 12050-2:2001en91.140.80ICS:SLOVENSKI
STANDARDSIST EN 12050-2:200101-oktober-2001
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12050-2December 2000ICS 91.140.80English versionWastewater lifting plants for buildings and sites - Principles ofconstruction and testing - Part 2: Lifting plants for faecal-freewastewaterStations de relevage d'effluents pour les bâtiments etterrains - Principes de construction et d'essai - Partie 2:Stations de relevage pour effluents exempts de matièresfécalesAbwasserhebeanlagen für die Gebäude- undGrundstücksentwässerung - Bau- und Prüfgrundsätze - Teil2: Abwasserhebeanlagen für fäkalienfreies AbwasserThis European Standard was approved by CEN on 1 December 2000.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2000 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12050-2:2000 E
Page 2EN 12050-2:2000ContentsPageForeword. 31Scope. 32Normative references. 33Terms and definitions. 43.1Lifting plant for faecal-free wastewater. 43.2Collection tank for faecal-free wastewater. 43.3Useful volume. 43.4Pumping device for faecal-free wastewater. 43.5Warning device. 43.6Initial testing (type testing). 44Requirements. 44.1Control equipment. 44.2Electrical equipment. 44.3Manufacturer's statement. 44.4Collection tank. 45Construction principles. 45.1Pumping of solids. 45.2Pipe connections. 55.3Fixing devices. 55.4Ventilation. 55.5Minimum flow velocity. 55.6Minimum allowable solids passage of the plant. 65.7Minimum size of discharge connections. 66Materials. 67Testing documentation and samples to be tested. 68Testing. 68.1General requirements. 68.2Test conditions. 68.3Temperature resistance. 78.4Lifting effectiveness. 78.5Water tightness of collection tank. 79Conformity evaluation. 79.1General requirements. 79.2Initial testing of the products (type testing). 89.3Factory production control (FPC) carried out by the manufacturer (internal conformity evaluation). 89.4Non-conforming products. 810Marking. 911Installation, operation and maintenance. 9Annex A (normative)Additional requirements
...................................................... 10Annex B (informative)Recommended Materials....................................................... 11Annex C (informative)Conformity evaluation by an independent third party (third party evaluation).................. 12Annex Z (informative)Links with the EU Construction Products Directive (89/106).............................. 13Bibliography.................................................................... 16
Page 3EN 12050-2:2000ForewordThis European Standard has been prepared by Technical Committee CEN/TC 165 "Waste water engineering" , thesecretariat of which is held by DIN.This part of this European Standard for wastewater lifting plants for buildings and sites was prepared by TaskGroup 4 "Wastewater lifting plants" of Working Group WG 21 "Drainage systems within buildings" of CEN TechnicalCommittee TC 165 "Wastewater engineering". Lifting plants for faecal-free wastewater described in this part of thisEuropean Standard may be used for drainage of buildings and external areas.This is the second of a total of four parts of the standard series EN 12050 with the following titles:Part 1: Lifting plants for wastewater containing faecal matterPart 2: Lifting plants for faecal-free wastewaterPart 3: Lifting plants for wastewater containing faecal matter for limited applicationsPart 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matterThis European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by June 2001, and conflicting national standards shall be withdrawn at the latest bySeptember 2002.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative Annex Z, which is an integral part of this standard.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.Annex A is normative. The annexes B, C and Z are informative.1ScopeThis part of this European Standard applies to lifting plants for faecal-free wastewater in buildings and sites. Itspecifies methods for drainage of locations below flood level to prevent any backflow of wastewater into the building.This part of this European Standard contains general requirements, basic construction and testing principles,together with information on materials and conformity evaluation. Construction and testing requirements for non-return valves used in effluent lifting plants are given in EN 12050-4.NOTE For pumping installations for drain and sewer systems see also EN 752-6.2Normative referencesThis European Standard incorporates by dated or undated reference provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 124Gully tops and manhole tops for vehicular and pedestrian areas - Design requirements, type testing, marking,quality controlEN 752-6Drain and sewer systems outside buildings – Part 6: Pumping installationsEN 1085 : 1997Waste water treatment – VocabularyprEN 12050-1: 2000Wastewater lifting plants for buildings and sites – Principles of construction and testing – Part 1: Lifting plants forwastewater containing faecal matterEN 12050-4Wastewater lifting plants for buildings and sites – Principles of construction and testing – Part 4: Non-returnvalves for faecal-free wastewater and wastewater containing faecal matterEN 12056-1Gravity drainage systems inside buildings – Part 1: General and performance requirementsEN 12056-4Gravity drainage systems inside buildings – Part 4: Wastewater lifting plants, layout and calculationEN 12566-1Small wastewater treatment systems for up to 50 PT - Part 1: Prefabricated septic tanksEN 12639 : 2000Liquid pumps and pump units - Noise test code - Grade 2 and grade 3 of accuracy
Page 4EN 12050-2:2000EN 60529Degrees of protection provided by enclosures (IP code) (IEC 60529: 1989)ISO 9906 Rotodynamic pumps - Hydraulic performance acceptance tests - Grades 1 and 23Terms and definitionsFor the purposes of this standard, the definitions given in EN 1085:1997 and the following apply:3.1lifting plant for faecal-free wastewaterdevice for the collection and automatic lifting of faecal-free wastewater to a height above flood levelNOTE A non-return valve according to EN 12050-4 is a component of the plant.3.2collection tank for faecal-free wastewaterunpressurized part of a faecal-free lifting plant in which the incoming wastewater is stored prior to lifting3.3useful volumevolume in the collection tank between switch-on level and switch-off level [prEN 12050-1: 2000]3.4pumping device for faecal-free wastewatercomponent of a faecal-free lifting plant which pumps the wastewater out of the collection tank to a height above floodlevel3.5warning devicedevice which gives a signal if a malfunction occurs [prEN 12050-1: 2000]3.6initial testing (type testing)testing to demonstrate that a plant conforms to all requirements of this standard4Requirements4.1Control equipmentFaecal-free lifting plants shall be fitted with control equipment for automatic operation of the plant. Manual operationshall also be possible, if necessary by activating the switching device for automatic control.4.2Electrical equipmentElectrical equipment shall comply with the appropriate valid IEC-Standard. If the electrical equipment is located ina well ventilated space and not subject to possible flooding, it shall comply at least with Protection Type IP 44according to EN 60529. In spaces designed other than this, the required Protection Type according to EN 60529depends on the means of installation.4.3Manufacturer's statementThe manufacturer shall state the hydraulic performance characteristics (head and flow) together with the maximumpower consumption and maximum current consumption according to ISO 9906 Grade 2.4.4Collection tankCollection tanks shall be covered (see EN 124) and watertight. The structural design of collection tanks outside thebuilding shall be in accordance with EN 752-6. 5Construction principles5.1Pumping of solidsThe plant shall be capable of pumping faecal-free domestic wastewater or rainwater as defined in EN 12056-1 whichmay contain sand particles and other solids up to 8 mm size.
Page 5EN 12050-2:20005.2Pipe connectionsThe dimensions of inlet, discharge and ventilating connections shall permit the use of standard pipe sizes.Connections shall be flexible and shall withstand the maximum operating pump pressure without leaking.5.3Fixing devicesLifting plants for faecal-free wastewater with collection tank shall incorporate fixing devices to prevent rotation orfloatation.5.4VentilationThe collection tank shall be adequately ventilated.5.5Minimum flow velocityThe flow velocity in the discharge pipework shall be at least 0,7 m/s at the duty point. The duty point shall becalculated according to EN 12056-4. The minimum flow rate shall be calculated in accordance with equation (1)Where:(1)Qmin v×
p4×10 3×di2vis the minimum flow velocity in the discharge pipework = 0,7 m/sdiis the internal diameter of the pipe in mmQmin is the minimum flow rate in l/s
Page 6EN 12050-2:2000
Keya) Flow rate Q in l/s b) Pipe internal diameter di in mm c) Flow rate Q in m3/hFigure 1 - Relationship between flow and pipe internal diameter of the discharge line5.6Minimum allowable solids passage of the plantThere shall be a minimum 10 mm free passage through the entire plant.5.7Minimum size of discharge connectionsDischarge connections and non-return valves shall be at least DN 32.6MaterialsMaterials used shall be adequate to meet the demands of installation, operation, shall comply with the requirementsof this standard and shall not release dangerous substances. Examples of suitable materials for the construction ofwastewater lifting plants are given in Annex B (informative). For materials where corrosion protection is necessary,such materials shall conform to the relevant corrosion protection requirements in force in the place of use of theplant.7Testing documentation and samples to be testedFor the initial testing the following documentation shall be provided:– drawings, including information on materials used;– operating and maintenance instructions (acceptable in manuscript form).The initial testing shall be carried out on the wastewater lifting plant with the lowest rated performance from eachseries.8Testing8.1General requirementsTesting shall be carried out on a plant that complies with the shape, dimensions and materials given in the testingdocumentation. The test shall demonstrate compliance with the requirements of this standard. The watertemperature during the test shall not exceed 35 °C.8.2Test conditionsThe hydraulic and electrical characteristics supplied by the manufacturer shall be confirmed, the hydraulic
Page 7EN 12050-2:2000characteristics in accordance with grade 2 of ISO 9906, and shall conform with this Standard. Before commencingtesting, the pumping device shall be run continuously for at least 10 minutes. Testing of hydraulic and electricalcharacteristics shall be carried out over a period of 10 to 15 minutes. Based on the hydraulic characteristicsdetermined by testing, compliance with the minimum flow velocity given in 5.5 shall be checked.8.3Temperature resistanceThe temperature resistance of the plant including the non-return valve shall be checked in accordance with 8.4.Key1 Wastewater2 Non-return valve3 Pumping devicea) Static head as given by the manufacturerb) Switching-off level + 150 mmFigure 2 - Testing arrangement8.4Lifting effectivenessThe lifting effectiveness of the unit, including the non-return valve, shall be tested by means of the test arrangementshown in Figure 2. 100 g of quartz sand of size 0 mm to 8 mm in a uniform mixture (without any oversized particles)shall be added to each litre of water in circulation. The plant shall operate continuously for one hour withoutmalfunction. After completion of the test there shall be no damage which could affect the operation of the plant. Thetest arrangements shall ensure that the solid material is continually circulated. The temperature of the water shallbe between 30 °C and 35 °C.8.5Water tightness of collection tankThere shall be no visible leakage from the all-site free collection
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