Product PCTFE Components for Valves Features PCTFE components like Thrust bearing, Extension bearing, etc are used in Cryogenic application valves. Size Range 3" (DN80) to 24" (DN600) Material Grade ASTM D1430 Type 1 grade 3 or ASTM 3645 [PCTFE] Drawing As per Customer's drawing requirements Dimensional Accuracy ±0.05mm