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BS EN 751-3:1997- Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 3. Unsintered PTFE tapes

Other Titles Withdrawn Description Printed version of this is available at library. To request, please e-mail to referencepk@usm.my and include a copy of this record in your e-mail. Abstract This European Standard specifies requirements and test methods for unsintered polytetrafluorethylene (PTFE) tapes (hereafter referred to as PTFE tapes) which are suitable for sealing threaded metallic joints as specified in ISO 7‑1. The PTFE tapes 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 and up to 7 bar for hot water of heating systems (Class A) as well as up to 0,2 bar in gas appliances and their auxiliary equipment (Class B). The maximum working pressure covered in this European Standard is 20 bar which is relevant to LPG storage (Class C). The temperature range is limited to -20 ÊC to 125 ÊC. NOTE. For applications outside the scope of this standard (e.g. compressed gases) the purchaser should consult the manufacturer. Anaerobic jointing compounds are covered by EN 751‑1, non-hardening sealing materials in the form of, e.g. jointing compound paste, are covered by EN 751‑2.

Contributor(s): MFAR - Data Entry Person Primary Item Type: British Standard Identifiers: ICS 23.040.80 Seals for pipe and hose assemblies ICS  91.140.40 Gas supply systems ISBN 0580276651 ICS 91.140.60 Water supply systems Language: English Subject Keywords: Thermal testing; Weight tolerances; Tape; Hot-water supply systems; 3rd family gases; Width; Pipe fittings; Dimensional tolerances; Thermal-cycling tests; Polytetrafluoroethylene; Temperature; Marking; Test specimens; Test equipment; Performance testing; Dimensions; Water; Dimensional measurement; Classification systems; Sealing materials; Gas pipes; Metals; Environment (working); Gas-powered devices; Pipe couplings; Lubricants; Vibration testing; 1st family gases; Pressure testing; Instructions for use; Leak tests; Determination of content; Pressure; 2nd family gases; Wrapping tests; Testing conditions; Screwed fittings First presented to the public: 6/2/2023 Original Publication Date: 7/15/1997 Previously Published By: British Standards Institution Place Of Publication: London, United Kingdom Citation: Extents: Number of Pages - 7 License Grantor / Date Granted:   / ( View License ) Date Deposited 2023-06-14 01:02:05.795 Submitter: Mohd Fadli Abd. Rahman

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