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Pneumatic Operated Ball Valve

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Specifications:

  • Cast Iron : IS 210, G.R. F. G. 200
  • Ductile Iron : ASTM A395
  • Cast Steel : ASTM A216, G.R. WCB
  • S. S. 304 : ASTM A351 CF8
  • S. S. 304L : ASTM A351 CF3
  • S. S. 316 : ASTM A351 CF8M
  • S. S. 316L : ASTM A351 CF3M
  • Alloy 20 : ASTM A351 CN7M


Design Standard:

  • Ball Valve, 2 Pieces : BS 5351, Short / Long Pattern.
  • Ball Valve, 3 Pieces : BS 5351, Long Pattern.


Standard Resin:

  • PFA : ASTM D 3418
  • FEP : ASTM D 2116


Service Temperature:


PFA:

  • Maximum continuous service temperature :265° C
  • Melt point : 305° C


FEP:

  • Maximum continuous service temperature : 200° C
  • Melt point : 260° C


Lining Thickness:

  • Minimum Lining thickness would be 3.0 mm over all wetted portion


Chemical Inertness:

  • PFA / FEP is chemically inert to most of the all chemicals and solvents with the exception of molten alkali metals
  • PFA / FEP lined valves are used to convey, and are inert to, these chemicals : All acids including hydrofluoric, sulphuric and aqua regia, all caustic, all chlorides organic and inorganic, all solvents, all bleach solutions, all peroxides, all phenols and any combinations of above material
  • Combined with the chemical inertness of PFA / FEP is its unique non-stick property. Thus a PFA / FEP lined products eliminate or minimize the built up of deposits of the products which otherwise reduce flow and affect processing operations

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