Standard Specification for Special Engineered Fittings, Appurtenances or Valves for use in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Systems
STANDARD published on 1.11.2024
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Designation standards: ASTM F1970-24
Publication date standards: 1.11.2024
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
This specification covers special engineered fittings, appurtenances or valves for use in poly(vinyl chloride) or chlorinated poly(vinyl chloride) pipe and tubing systems. Fittings or appurtenances covered by this specification are generally either molded, fabricated, or assembled from molded or machined components. The materials used in components include rigid thermoplastics, thermoplastic elastomers, elastomerics, and metals. Seal dimensions shall be in accordance with the standard design dimensions and tolerances and shall be designed in such a manner as to provide adequate compressive force against mating parts after assembly. Solvent-weld, threaded, flange, and spigot connections shall also meet the requirements for bolt patterns, average outside diameter, out-of-plane roundness, and minimum wall thickness of the corresponding pipe. Hydrostatic internal pressure tests shall be performed on valves, check valves, and blind flanges to verify compliance with hydrostatic pressure resistance, leakage resistance, joint tightness, and activation pressure requirements.
Keywords:
activation pressure, appurtenances, check valves, CPVC, elastomeric joints, elastomers, fittings, flanges, maximum flow, pressure drop, pump, PVC, SE, special-engineered, unions, valves,, ICS Number Code 23.040.45 (Plastics fittings)