Super Provides Lined Ball Check Valves from 25 NB to 200 NBLined Ball Check Valves can be lined with PFA /FEP / Antistatic PFA / PP / HDPE / PVDF.MOC of the Body and END Piece is CS/SS + MIN THK 3MM. PFA / FEP / PVDF Lining.This Valves are Tested Visually / Dimensionally / Hydro Test (Body Test, Sheet Test) / Spark Test at 15 KVA.