In a lined valve, all wetted surfaces are a plastic material, typically a fluorocarbon. A lined valve's metallic parts are manufactured from relatively inexpensive materials such as ductile iron. In a fully lined valve, no media comes in contact with any metal parts.
Body : Carbon Steel ASTM A216, Grd, WCB
Ball : ASTM A 351, Grd CF8
Flange: ANSI B 16.5 150 Class (As per required)
Lining Specification:
FEP / ASTM D 2116
PFA / ASTM D 3307
PTFE / ASTM D 1457
Test Pressure
Body : 15 kg cm2
Seat : kg cm2
Spark Test : At 15 KVDC after lining