Middle Line Wafer Butterfly Valve 2"~48" ... , ANSI, DIN, BS, JIS Middle Line Wafer Type Butterfly Valvesize:50-1200mm150LBS/bar/PSIhandle/lever ... : Part name Materialsbodycast iron, ductile iron, carbon steel, stainless steel, ALB, Brass, BronzeseatEPDM, PTFE, NBR, Viton ... , Hypalon, Neoprenedisccast iron, ductile iron, carbon steel, stainless steel, ALB, monelstemstainless steel, carbon steel Bushing PTFE ...