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2. List of ISO standards 1–1999 - Wikipedia

   en.wikipedia.org/wiki/List_of_ISO_standards_1–1999

   ISO 264:1976 Unplasticized polyvinyl chloride (PVC) fittings with plain sockets for pipes under pressure — Laying lengths — Metric series [Withdrawn: replaced with ISO 1452-3] ISO 265 Pipes and fittings of plastics materials — Fittings for domestic and industrial waste pipes — Basic dimensions: Metric series

3. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   [19]: 61 [20] In addition, a well-designed system will often use two 45° elbows instead of one 90° elbow (even a sweep 90° elbow) to reduce flow disruption as much as possible. [ 19 ] : 61 Central vacuum system inlet fittings are intentionally designed with a tighter curvature radius than other bends in the system.

4. List of ISO standards 2000–2999 - Wikipedia

   en.wikipedia.org/wiki/List_of_ISO_standards_2000...

   ISO 2536:1974 Unplasticized polyvinyl chloride (PVC) pressure pipes and fittings, metric series — Dimensions of flanges [Withdrawn without replacement] ISO 2537:2007 Hydrometry – Rotating-element current-meters; ISO 2538 Geometrical product specifications (GPS) – Wedges ISO 2538-1:2014 Part 1: Series of angles and slopes

5. List of ISO standards 3000–4999 - Wikipedia

   en.wikipedia.org/wiki/List_of_ISO_standards_3000...

   ISO 3663:1976 Polyethylene (PE) pressure pipes and fittings, metric series — Dimensions of flanges; ISO 3664:2009 Graphic technology and photography — Viewing conditions; ISO 3665:2011 Photography — Intra-oral dental radiographic film and film packets — Manufacturer specifications; ISO/TR 3666:1998 Viscosity of water

6. Plastic pipework - Wikipedia

   en.wikipedia.org/wiki/Plastic_pipework

   Pipes, fittings, valves, and accessories make up a plastic pressure pipe system. The range of pipe diameters for each pipe system does vary. However, the size ranges from 12 to 400 mm (0.472 to 15.748 in) and 3 ⁄ 8 to 16 in (9.53 to 406.40 mm). Pipes are extruded and are generally available in: 3 m (9.84 ft), 4 m (13.12 ft), 5 m (16.40 ft ...

7. Nominal Pipe Size - Wikipedia

   en.wikipedia.org/wiki/Nominal_Pipe_Size

   Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...