High purity corrosion resistant butterfly valve

摘要: A high purity, corrosion resistant butterfly valve comprises a pair of body halves each having an inner surface and outer surface, face extending between the surface; liner fitted to defining fluid media passage; disk member mounted on stem pivotally movable in passage open closed positions. No sealing element is provided faces enable pass if leakage occurs provide external indication leakage. The form direct seal position are substantially only elements that wetted during service. formed materials chemically inert non-contaminating with respect de-ionized water.