Ptfe Lined Ball Valves By Polycoat Flowchem Pvt. Ltd.

PTFE Lined Ball Valves

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 :265A C
* Melt point : 305A C
FEP :-
* Maximum continuous service temperature : 200A C
* Melt point : 260A 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.


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