21/30407321 DC - BS EN 751-3. Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water. Part 3. Unsintered PTFE tapes and PTFE strings

21/30407321 DC

BS EN 751-3. Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water. Part 3. Unsintered PTFE tapes and PTFE strings

Status : Current, Draft for public comment   Published : January 2021

Format
PDF

Format
HARDCOPY



This document specifies requirements and test methods for unsintered polytetrafluorethylene (PTFE) tapes and polytetrafluorethylene (PTFE) strings (PTFE tapes or PTFE strings, for short) which are suitable for sealing threaded metallic joints as specified in EN 10226-1. This document covers two classes of PTFE tapes and PTFE strings suitable for fine (F) and coarse (G) threads. The PTFE tapes and PTFE strings are typically for use in installations for 1st family gases (town gas), 2nd family gases (natural gas) and 3rd family gases (liquefied petroleum gases (LPG)) up to 5 bar, up to 7 bar for hot water of heating systems, and up to 0,2 bar in gas appliances and their auxiliary equipment. The maximum working pressure covered in this document is 20 bar which is relevant to LPG storage. The temperature range is limited to -20 °C to 125 °C. NOTE For applications outside the scope of this document (e. g. compressed gases), the purchaser should consult the manufacturer. Anaerobic jointing compounds are covered by EN 751 1, non-hardening sealing materials (e. g. in the form of jointing compound paste) are covered by EN 751-.




Standard Number21/30407321 DC
TitleBS EN 751-3. Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water. Part 3. Unsintered PTFE tapes and PTFE strings
StatusCurrent, Draft for public comment
Publication Date28 January 2021
Normative References(Required to achieve compliance to this standard)EN 10242:1994/A1:1999, EN ISO 11357-3:2018, ISO 11358-1:2014, EN 10226-3:2005, EN 10226-1:2004, EN 10255:2004+A1:2007, EN ISO 11358-1:2014, EN 10242:1994/A2:2003, EN 12164:2016, ISO 11357-3:2018
Informative References(Provided for Information)EN 437:2018
International RelationshipsprEN 751-3:2021
Draft Expiry Date22 March 2021
DescriptorsGas pipes, Test equipment, Leak tests, Width, Water, Dimensional tolerances, Sealing materials, Testing conditions, Performance testing, Dimensional measurement, Instructions for use, Polytetrafluoroethylene, Hot-water supply systems, Screwed fittings, Vibration testing, Tape, Gas-powered devices, Thermal-cycling tests, Lubricants, Pressure testing, Classification systems, 2nd family gases, Test specimens, 3rd family gases, Determination of content, Temperature, Thermal testing, Pipe couplings, Pipe fittings, Metals, Dimensions, Wrapping tests, Pressure, Weight tolerances, Environment (working), Marking, 1st family gases
ICS23.040.80
91.140.40
91.140.60
Title in FrenchMatériaux d'étanchéité pour raccords filetés en contact des gaz de la 1ère, 2ème et 3ème famille et de l'eau chaude - Partie 3:Bandes et cordons en PTFE non fritté
Title in GermanDichtmittel für metallene Gewindeverbindungen in Kontakt mit Gasen der 1., 2. und 3. Familie und Heißwasser - Teil 3: Ungesinterte PTFE-Bänder und -Fäden
CommitteePRI/70
PublisherBSI
FormatA4
DeliveryYes
Pages23
File Size431 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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