Construction of Material :-

Casting Material 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 Specifications :-

• 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 materials.
• 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.