Sealing materials for metallic threaded joints. Part 3: Unsintered PTFE
These approval requirements apply to unsintered PTFE sealing tapes and twines for metallic threaded joints according to EN 10226-1. The sealing materials are suitable for use in gas installations for 2nd family gases (natural gas) and 3rd family gases (liquefied petroleum gas- LPG) according to NEN-EN 437 and for hot water heating systems.
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