EN 12050-4:2015
(Main)Wastewater lifting plants for buildings and sites - Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter
Wastewater lifting plants for buildings and sites - Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter
This European Standard applies to non-return valves used for faecal-free wastewater and wastewater containing faecal matter lifting plants. This Standard specifies general requirements, basic construction and testing principles together with information on materials and the relevant assessment and verification of constancy of performance.
Abwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Teil 4: Rückflussverhinderer für fäkalienfreies und fäkalienhaltiges Abwasser
Diese Europäische Norm gilt für Rückflussverhinderer für Abwasserhebeanlagen für fäkalienfreies und fäkalienhaltiges Abwasser. Diese Norm enthält allgemeine Anforderungen, Bau- und Prüfgrundsätze sowie Angaben zu Werkstoffen und zur entsprechenden Bewertung und Überprüfung der Leistungsbeständigkeit.
Stations de relevage d'effluents pour les bâtiments et terrains - Partie 4 : Dispositifs anti-retour pour effluents contenant ou non des matières fécales
La présente Norme européenne s'applique aux dispositifs anti-retour utilisés dans les stations de relevage pour effluents contenant ou non des matières fécales. La présente norme spécifie des exigences générales, des principes fondamentaux de construction et d'essai, ainsi que des informations sur les matériaux et l'évaluation et la vérification de la constance des performances.
Črpališča odpadne vode za stavbe in zemljišča - 4. del: Nepovratni ventili za odpadno vodo s fekalijami in brez njih
Ta del tega evropskega standarda se uporablja za nepovratne ventile, uporabljene v povezavi s črpališči odpadne vode s fekalijami ali brez fekalij. Ta del standarda vsebuje splošne zahteve, osnovna načela zasnove in preskušanja, skupaj z informacijami o materialih ter vrednotenju skladnosti.
General Information
- Status
- Published
- Publication Date
- 17-Mar-2015
- Technical Committee
- CEN/TC 165 - Waste water engineering
- Drafting Committee
- CEN/TC 165/WG 21 - Drainage systems inside buildings
- Current Stage
- 9020 - Submission to 2 Year Review Enquiry - Review Enquiry
- Start Date
- 15-Jan-2026
- Completion Date
- 15-Jan-2026
- Directive
- 89/106/EEC - Construction products
Relations
- Effective Date
- 25-Mar-2015
Overview
EN 12050-4:2015 - published by CEN - is the European standard that specifies requirements for non‑return valves used in wastewater lifting plants for buildings and sites. It covers non‑return valves for both faecal‑free wastewater and wastewater containing faecal matter, describing general requirements, construction principles, testing methods and conformity assessment (AVCP) including information on materials, durability and performance verification.
Key topics and technical requirements
- Scope and definitions: Applies to non‑return valves as either integrated or separate components of lifting plants; includes backwash devices and maximum pump operating pressure concepts.
- Materials: Corrosion‑resistant materials or protective coatings required; materials must not release dangerous substances.
- Mechanical resistance: Connections must resist longitudinal forces and the plant’s maximum pump pressure; no visible leakage under pressure testing (see Clause 5.2.4).
- Effectiveness: Valves must automatically prevent backflow and open reliably during pumping; effectiveness verified by specified tests (Clauses 5.2.1–5.2.5).
- Solids passage: Ball‑passage (Ds) requirement to avoid retention of solids and fibrous material: Ds ≥ 0.8·di − 4 mm (di = internal pipe diameter).
- Cleanability: Valves must be cleanable (except DN < 80 where cleaning provision is not required).
- Internal leakage: Maximum leakage limits during a 10‑minute test are defined by valve size (e.g., DN < 32 → 0.5 L; 32 ≤ DN ≤ 100 → 1 L; DN > 100 → 3 L).
- Nominal pressure: Minimum nominal pressure class is PN 4.
- Reaction to fire: Reaction‑to‑fire classification requirements included (references to EN 13501‑1 and EN 13823).
- Durability, noise and dangerous substances: Clauses address watertightness lifetime, mechanical durability, noise testing (EN ISO 20361) and hazardous substance restrictions.
- Assessment and verification of constancy of performance (AVCP): Type testing, factory production control (FPC), Declaration of Performance (DoP) and CE marking provisions are covered (Annex ZA reflects CPR / EU No. 305/2011).
Applications
- Specifying and testing non‑return valves for sewage and drainage pumping installations in residential, commercial and industrial buildings.
- Ensuring component performance for lifting plants handling both faecal‑free and faecal‑containing wastewater.
- Use in product development, conformity assessment and procurement of valve components or complete lifting units.
Who should use this standard
- Manufacturers of non‑return valves and wastewater lifting plants
- Building services designers and consulting engineers
- Test laboratories and conformity assessment bodies
- Installers, facility managers and specifiers responsible for drainage/lift installations
- Regulators and product certification bodies implementing the Construction Products Regulation (CPR)
Related standards
- EN 12050‑1, EN 12050‑2, EN 12050‑3 (other parts of the lifting plants series)
- EN 13501‑1, EN 13823 (reaction to fire)
- EN ISO 20361 (noise testing)
Keywords: EN 12050-4:2015, non‑return valves, wastewater lifting plants, faecal‑free wastewater, wastewater containing faecal matter, CEN, AVCP, solids passage, PN 4, internal leakage, CE marking.
Frequently Asked Questions
EN 12050-4:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Wastewater lifting plants for buildings and sites - Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter". This standard covers: This European Standard applies to non-return valves used for faecal-free wastewater and wastewater containing faecal matter lifting plants. This Standard specifies general requirements, basic construction and testing principles together with information on materials and the relevant assessment and verification of constancy of performance.
This European Standard applies to non-return valves used for faecal-free wastewater and wastewater containing faecal matter lifting plants. This Standard specifies general requirements, basic construction and testing principles together with information on materials and the relevant assessment and verification of constancy of performance.
EN 12050-4:2015 is classified under the following ICS (International Classification for Standards) categories: 91.140.80 - Drainage systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12050-4:2015 has the following relationships with other standards: It is inter standard links to EN 12050-4:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 12050-4:2015 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 88/379/EEC, 89/106/EEC; Standardization Mandates: M/118, M/118 REV1. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 12050-4:2015 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Abwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Teil 4: Rückflussverhinderer für fäkalienfreies und fäkalienhaltiges AbwasserStations de relevage d'effluents pour les bâtiments et terrains - Partie 4 : Dispositifs anti-retour pour effluents contenant ou non des matières fécalesWastewater lifting plants for buildings and sites - Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter91.140.80Drenažni sistemiDrainage systemsICS:Ta slovenski standard je istoveten z:EN 12050-4:2015SIST EN 12050-4:2015en,fr,de01-maj-2015SIST EN 12050-4:2015SLOVENSKI
STANDARDSIST EN 12050-4:20011DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12050-4
March 2015 ICS 91.140.80 Supersedes EN 12050-4:2000English Version
Wastewater lifting plants for buildings and sites - Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter
Stations de relevage d'effluents pour les bâtiments et terrains - Partie 4 : Dispositifs anti-retour pour effluents contenant ou non des matières fécales
Abwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Teil 4: Rückflussverhinderer für fäkalienfreies und fäkalienhaltiges Abwasser This European Standard was approved by CEN on 17 January 2015.
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, Former 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 United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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 12050-4:2015 ESIST EN 12050-4:2015
Recommended materials . 17 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation . 18 ZA.1 Scope and relevant characteristics . 18 ZA.2 Procedure for AVCP of non-return valves for faecal-free wastewater and wastewater containing faecal matter . 19 ZA.2.1 System(s) of AVCP . 19 ZA.2.2 Declaration of performance (DoP) . 23 ZA.2.2.1 General . 23 ZA.2.2.2 Content. 23 ZA.2.2.3 Example of DoP . 24 ZA.3 CE marking and labelling. 26 Bibliography . 30
is the ball passage, in millimetres; di
is the internal diameter of the discharge pipe, in millimetres. 4.3.4 Cleanability It shall be possible to clean the non-return valves, though the cleaning possibility is not necessary in case of non-return valves of DN < 80. 4.3.5 Nominal pressure of non-return valves Non-return valves shall at least comply with a nominal pressure of PN 4. 4.4 Internal leakage When tested in accordance with 5.2.3 no more water than specified in Table 1 shall pass through the valve. Table 1 — Relationship between valve size and maximum internal leakage Size Maximum internal leakage (in litres) during the test time of 10 min DN < 32 0,5 32 ≤ DN ≤ 100 1 DN > 100 3 4.5 Reaction to fire 4.5.1 General Where use of a non-return valve for faecal free wastewater and wastewater containing faecal matter is subject to national regulatory requirements on reaction to fire, its reaction to fire performance shall be considered as that of its components (i.e. material approach) and shall be declared as one of the following classes, according to EN 13501-1: a) Class A1, without the need for testing (CWT), when meeting the requirements, specified in 4.5.2, or otherwise; b) Class A1 to E, defined according to the results of testing the non-return valve's constituent material(s), according to the standard(s) referred to in EN 13501-1, as specified in 4.5.3. SIST EN 12050-4:2015
1) See Decision of the Commission 96/603/EC of 1996-10-04 (see OJEU L 267 of 1996-10-19), as twice amended by 2000/605/EC of 2000-09-26 (see OJEU L 258 of 2000-10-12) and by 2003/424/EC of 2003-06-06 (see OJEU L 144 of 2003-06-12). SIST EN 12050-4:2015
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