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Plastics piping systems for industrial applications. Poly(vinylidene fluoride) (PVDF). Specifications for components and the system
This International Standard specifies the characteristics and requirements for components such as pipes, fittings and valves made from poly (vinylidene fluoride) (PVDF), intended to be used for thermoplastics piping systems in the field of industrial applications above-ground.
It is applicable to PVDF pipes, fittings, valves and ancillary equipment, their joints and to joints with components of other plastics and non-plastics materials, depending on their suitability, intended to be used for the conveyance of liquid and gaseous fluids as well as of solid matters in fluids for industrial applications including:
chemical plants,
industrial sewerage engineering,
power engineering (cooling and general purpose water),
electroplating and pickling plants,
semiconductor industry,
agricultural production plants, and
water treatment.
This International Standard is applicable to PVDF piping systems for use at temperatures up to 150 °C. However, for applications above 120 °C, which depend upon the crystalline melting point of the PVDF material, it is advisable to seek the advice of the manufacturer of the component (the components have to withstand the mechanical, thermal and chemical demands to be expected and to be resistant to the fluids to be conveyed).
Characteristics and requirements which are applicable for PVDF in general are covered by the relevant clauses of this International Standard. Those characteristics and requirements which depend on the material used are given in Annex A.
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