BSI BS 21 Pipe Threads for Tubes and Fittings Where Pressure-Tight Joints Are Made on the Threads (Metric Dimensions)
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BSI BS 21 Document Information:
Title
Pipe Threads for Tubes and Fittings Where Pressure-Tight Joints Are Made on the Threads (Metric Dimensions)
Metrische Rohrgewinde fuer Rohre und Formstuecke fuer im Gewinde dichtende Verbindungen
Filetages de tuyauterie pour raccordement dans le filet (dimensions metriques) specifications
British Standards Institution
Publication Date:
Sep 30, 1985
Scope:
Range of threads from 1/16 to 6, together with thread forms, dimensions and tolerances, designations; includes appendices for recommended gauging systems and methods of use of gauges. Requirements for jointing threads for taper external threads, for assembly with either tapes or parallel internal threads and for longscrew threads for longscrews specified in BS 1387.
Keywords:
- Threads
- Pipes
- Parallel threads
- Taper threads
- External threads
- Internal threads
- Screwed fittings
- Pipe fittings
- Dimensions
- Dimensional tolerances
- Designations
- Pressure pipes
- Thread gauges
- Longscrews
- Gas-powered devices
- Pipe couplings
- Thread forms
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