SIST EN 751-1:1997

Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 1: Anaerobic jointing compounds

This European Standard specifies requirements and test methods for anaerobic jointing compounds (hereafter referred to as "jointing compounds") suitable for sealing threaded metallic joints such as those specified in ISO 7-1. These jointing compounds are for use in contact with 1st family gases (town gas), 2nd family gases (natural gas) and 3rd family gases (liquefied petroleum gases (LPG) not including LPG in the liquid form) and hot water of heating systems.  [The scope of the complete standard includes a table.]

Dichtmittel für Gewindeverbindungen in Kontakt mit Gasen der 1., 2. und 3. Familie und Heißwasser - Teil 1: Anaerobe Dichtmittel

Diese Norm legt Anforderungen und Prüfmethoden für anaerobe Dichtmittel (im folgenden Dichtmittel genannt) fest, die geeignet sind, metallene Gewindeverbindungen, wie sie z.B. in ISO 7-1 genormt sind, abzudichten. Die Dichtmittel sind für den Einsatz in Kontakt mit Gasen der 1., 2. und 3. Gasfamilie (ausgenommen Flüssiggas in der flüssigen Phase) und Heißwasser von Heizungsanlagen nach Tabelle 1 vorgesehen.

Matériaux d'étanchéité pour raccords filetés en contact des gaz de la 1ere, 2eme et 3eme famille et de l'eau chaude - Partie 1: Composition d'étanchéité anaérobie

Cette norme spécifie les exigences et les méthodes d'essais pour les compositions d'étanchéité anaérobies (appelées ci-dessous "composition d'étanchéité") utilisables pour étancher les raccords filetés métalliques comme ceux spécifiés dans la norme ISO 7-1. Ces compositions d'étanchéité sont utilisables en contact des gaz du 1er, 2ème et 3ème groupe (non compris le GPL sous forme liquide), et de l'eau chaude de chauffage en accord avec les prescriptions du tableau 1.

Tesnilni materiali za kovinske navojne zveze v stiku s plini 1., 2. in 3. družine ter vročo vodo - 1. del: Anaerobni tesnilni materiali

General Information

• Status: Published
• Publication Date: 31-Jul-1997
• ICS: 83.140.50 - Seals
• ICS: 91.140.40 - Gas supply systems
• ICS: 91.140.60 - Water supply systems
• Technical Committee: PLN - Gas appliances for domestic use
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Aug-1997
• Due Date: 01-Aug-1997
• Completion Date: 01-Aug-1997
• Directive: 2009/142/EC - DIRECTIVE 2009/142/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 November 2009 relating to appliances burning gaseous fuels
• Directive: 2016/426 - REGULATION (EU) 2016/426 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 9 March 2016 on appliances burning gaseous fuels and repealing Directive 2009/142/EC
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Directive: 90/396/EEC - Appliances burning gaseous fuels
• Mandate: M/131 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on pipes, tanks and ancillaries, not in contact with water intended for human consumption
• Mandate: M/BC/CEN/89/6 - Standardization request to CEN concerning appliances burning gaseous fuels
• Ref Project: EN 751-1:1996 - Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 1: Anaerobic jointing compounds

Overview

EN 751-1:1996 is a CEN European Standard that specifies requirements and test methods for anaerobic jointing compounds used as sealing materials for metallic threaded joints (e.g., threads per ISO 7-1). The standard covers anaerobic sealants intended for use in contact with 1st family gases (town gas), 2nd family gases (natural gas), 3rd family gases (LPG, excluding LPG in liquid form) and hot water in heating systems. EN 751-1 is intended to ensure safe, reliable sealing performance of anaerobic compounds in gas and hot-water pipework.

Key Topics

• Scope and application: Defines the intended uses for anaerobic jointing compounds on metallic threaded joints in gas supply and heating systems.
• Performance requirements: Sets out the types of requirements the jointing compounds must meet to be considered suitable (sealing integrity, compatibility with thread dimensions such as ISO 7-1, and suitability for the specified gas families and hot water).
• Test methods: Specifies test procedures to evaluate product performance and compliance - for example, tests addressing leak-tightness and interaction with gas and hot-water environments (standard describes required test methods rather than proprietary lab techniques).
• Marking and documentation: Requirements for product identification, manufacturer information and declaration of suitability for use with specified gas families and hot water.
• Safety and conformity: Guidance for manufacturers and conformity assessment to support safe installation and regulatory compliance.

Applications

EN 751-1 is a practical reference for:

• Sealant manufacturers designing and validating anaerobic jointing compounds for gas and heating systems.
• Plumbing and gas installers selecting approved sealants for metallic threaded joints in domestic and commercial heating and gas distribution.
• System designers and specifiers who need to reference a recognized standard when specifying materials for pipelines and equipment.
• Testing laboratories and conformity assessors performing compliance tests against European requirements.
• Regulatory bodies and procurement teams requiring demonstrable compliance for safety and performance in gas supply and water heating installations.

Related Standards

• ISO 7-1 (threads for pressure-tight joints on threaded pipes) - referenced thread specification.
• Other parts of EN 751 (other sealing material types and test methods) and national adoptions (e.g., SIST EN 751-1) may provide complementary requirements for different sealing technologies.
• ICS categories: 83.140.50 (Seals), 91.140.40 (Gas supply systems), 91.140.60 (Water supply systems).

Keywords: EN 751-1, anaerobic jointing compounds, threaded metallic joints, sealing materials, gas supply systems, ISO 7-1, LPG, hot water, heating systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-avgust-1997
7HVQLOQLPDWHULDOL]DNRYLQVNHQDYRMQH]YH]HYVWLNXVSOLQLLQGUXåLQHWHU
YURþRYRGRGHO$QDHUREQLWHVQLOQLPDWHULDOL
Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family
gases and hot water - Part 1: Anaerobic jointing compounds
Dichtmittel für Gewindeverbindungen in Kontakt mit Gasen der 1., 2. und 3. Familie und
Heißwasser - Teil 1: Anaerobe Dichtmittel
Matériaux d'étanchéité pour raccords filetés en contact des gaz de la 1ere, 2eme et
3eme famille et de l'eau chaude - Partie 1: Composition d'étanchéité anaérobie
Ta slovenski standard je istoveten z: EN 751-1:1996
ICS:
83.140.50 Tesnila Seals
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
91.140.60 Sistemi za oskrbo z vodo Water supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Pag
...