EN 13997:2003

Irrigation techniques - Connection and control accessories for use in irrigation systems - Technical characteristics and testing

This standard describes the technical characteristics and requirements of hydraulic connection and control accessories to ensure a sufficient mechanical resistance for practical use, and specifies the relevant testing methods. It applies to accessories made of steel, brass, aluminium, Polypropylene, Polyethylene or PVC for use in irrigation systems up to a diameter of 250 mm.

Bewässerungsverfahren - Verbindungs- und Steuerzubehör für den Einsatz in Bewässerungssystemen - Technische Eigenschaften und Prüfung

Diese Norm führt auf und legt fest die Eigenschaften von Verbindungs- und Steuerzubehör, um eine zufriedenstellende mechanische Widerstandsfähigkeit im praktischen Einsatz sicherzustellen, und spezifiziert ihre Prüfung. Sie ist anwendbar für Zubehör z. B. aus  Stahl, Buntmetall, Aluminium, Polypropylen, Polyethylen oder PVC-hart für die Benutzung in Bewässerungs-Systemen bis zu einem Durchmesser von 250 mm.

Techniques d'irrigation - Accessoires de raccord et de commande pour usage dans les systèmes d'irrigation - Caractéristiques techniques et essais

La présente Norme européenne spécifie une méthode permettant de déterminer la résistance à l'usure due au roulement d'une roue lourdement chargée, sur des éprouvettes de mortier moulées, confectionnées avec des matériaux pour chapes à base ciment ou de résine synthétique utilisés en couche d'usure. Cette méthode peut s'appliquer, le cas échéant, à d'autres matériaux de chape utilisés en couche d'usure.

Namakalna tehnika – Priključitev in nadzor uporabe pripomočkov v namakalnem sistemu – Tehnične značilnosti in preskušanje

General Information

• Status: Published
• Publication Date: 04-Nov-2003
• Withdrawal Date: 30-May-2004
• ICS: 65.060.35 - Irrigation and drainage equipment
• Technical Committee: CEN/TC 334 - Irrigation techniques
• Drafting Committee: CEN/TC 334/WG 6 - Water supply. Buried and surface pipes
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 09-Oct-2024
• Completion Date: 14-Apr-2025
• Directive: 98/37/EC - Machinery
• Ref Project: SIST EN 13997:2004 - Irrigation techniques - Connection and control accessories for use in irrigation systems - Technical characteristics and testing

Overview

EN 13997:2003 (CEN) - "Irrigation techniques - Connection and control accessories for use in irrigation systems - Technical characteristics and testing" defines technical requirements and test methods for hydraulic connection and control accessories used in irrigation systems. It applies to parts made of steel, brass, aluminium, polypropylene (PP), polyethylene (PE) or PVC for pipelines up to 250 mm diameter. The standard ensures mechanical resistance, corrosion protection, dimensional accuracy and safe operation under declared nominal pressure.

Key Topics

• Scope and materials: Acceptable materials and manufacturing methods (welded/moulded for metals, extruded for plastics).
• Corrosion resistance: Requirements for steel (hot‑dip galvanizing to EN 10240 or protective coatings), aluminium (per ISO 209‑1/209‑2/3522/11678) and brass; PP/PE/PVC chemical resistance considerations.
• Dimensions and tolerances: Definitions of nominal length (lN) and overall length (lO), diameters (inner/outside/nominal), width and height measurement principles.
• Surface quality: Inner-wall smoothness limits and allowable welding residue; coating adhesion requirements.
• Couplings and quick couplings: Types (spherical with O‑ring, lip‑type seals), watertight/airtight requirements, declared maximum bending angle, and endurance (couplings must withstand opening/closing up to 2000 cycles).
• Pressure performance: Manufacturer-declared nominal pressure, instructions to account for water hammer and pressure shocks, and requirement to declare pressure loss (head loss) at nominal conditions.
• Marking: Producer identification plus length, diameter and nominal pressure information.
• Testing: Construction and operating tests, sampling and test forms (Annex A and B), and specific tests such as bending, bulging, pressure-loss and behaviour under nominal pressure.

Applications and Users

EN 13997:2003 is intended for:

• Manufacturers of irrigation fittings, couplings, valves and control accessories - to design and certify products.
• Test laboratories and quality assurance teams - to perform standardized construction and operating tests.
• Irrigation system designers, specifiers and contractors - to select compatible, durable components up to 250 mm diameter.
• Procurement and certification bodies - to verify compliance with European technical requirements.

This standard helps ensure reliable hydraulic connections, reduced leakage, predictable pressure losses and safer operation of agricultural, landscape and commercial irrigation systems.

Related standards

• EN 10240 (hot dip galvanizing for steel)
• ISO 209‑1, ISO 209‑2, ISO 3522, ISO 11678 (aluminium materials and irrigation tubes)

Keywords: EN 13997:2003, irrigation techniques, connection and control accessories, testing, nominal pressure, couplings, corrosion resistance, irrigation standards.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QDPDNDOQHPBewässerungsverfahren - Verbindungs- und Steuerzubehör für den Einsatz in Bewässerungssystemen - Technische Eigenschaften und PrüfungTechniques d'irrigation - Accessoires de raccord et de commande pour usage dans les systemes d'irrigation - Caractéristiques techniques et essaisIrrigation techniques - Connection and control accessories for use in irrigation systems - Technical characteristics and testing65.060.35Namakalna in drenažna opremaIrrigation and drainage equipmentICS:Ta slovenski standard je istoveten z:EN 13997:2003SIST EN 13997:2004en01-junij-2004SIST EN 13997:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13997November 2003ICS 65.060.35English versionIrrigation techniques - Connection and control accessories foruse in irrigation systems - Technical characteristics and testingTechniques d'irrigation - Accessoires de raccord et decommande pour usage dans les systèmes d'irrigation -Caractéristiques techniques et essaisBewässerungsverfahren - Verbindungs- und Steuerzubehörfür den Einsatz in Bewässerungssystemen - TechnischeEigenschaften und PrüfungThis European Standard was approved by CEN on 19 September 2003.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,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13997:2003 ESIST EN 13997:2004

Polyvinylchloride (PVC).64.3Dimensions.64.3.1General.64.3.2Length.64.3.3Width.74.3.4Height.74.3.5Diameter.74.4Smoothness of surface.74.5Coupling.74.6Replacement of parts with spherical couplings in a plant.84.7Allowable operating pressure (nominal pressure).84.8Pressure loss.85Marking.86Testing.96.1Construction and operating tests.96.1.1Sampling and test forms.96.1.2Test procedure.96.1.3Test equipment.106.1.4Test conditions.106.2Carrying out of test.106.2.1General.106.2.2Dimensions.116.2.3Wall thickness (without corrosion protection).116.2.4Total length of part.116.2.5Nominal length of part.116.2.6Bending angle.116.2.7Replacement.116.2.8Pressure loss.116.2.9Behaviour under nominal pressure.116.2.10Installation of line to be tested.136.2.11Supporting of empty part.136.2.12Bending test.146.2.13Bulging test.146.2.14Effects of bulging test.14Annex A (informative)
Application for test of connection and control accessories according to EN13997 – Form 1.15Annex B (informative)
Results of test of connection and control accessories carried out according toEN 13997 – Form 2.17Bibliography.20SIST EN 13997:2004

c) diameter reduction
d) riserFigure 1 — Examples for connection accessories (symbols)3.4control accessoryparts which influence the water pressure and the direction of flow or give data for influence in an irrigation plantsuch as flowmeters, pressure gauges, filters, valves (i. e. inline gate valves), online hydrants, pressure reductionvalves, shot valves, control units, non return valves, air escape valves, emptying valves. See Figure 2.a) Control unit b) filter c) flow meter d) pressure gauge e) pressure reduction valve f) non return valve g) shot valveFigure 2 — Examples for control accessories (symbols)4 Technical characteristics and requirements4.1 Material and method of production of the partsThe methods of production depending on the materials are listed in Table 1.Table 1 — Materials and methods of productionMaterialMethod of productionSteelWelded or mouldedBrassWelded or mouldedAluminium alloyWelded or mouldedPolypropylene (PP)ExtrudedPolyethylene (PE)ExtrudedPolyvinylchloride (PVC)Extruded4.2 Corrosion resistance and protection against corrosion4.2.1 GeneralConnection and control accessories shall be corrosion resistant against the application.SIST EN 13997:2004

Closed mechanically;¾ Coupling with lip type seal.Closed mechanically;¾ Coupling with lip type seal.Closed by water pressure. For special application lip type couplings may be required to be loose at pressures below 50 kPa by agreement.SIST EN 13997:2004
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