... 150LB-600LB, PN6~PN100. Material: C.S,S.S, Cast Iron, ductile iron, Bronze etc Wafer Butterfly Valve Specification:1) Size: 2" - ... 128"2) Rating: 150lbs-600lbs, PN6~PN1003) Material: cast steel, stainless steel,cast iron, ductile iron4) Operation: hand wheel, worm gear, electric ... butterfly valve and Lug butterfly valve .The material for cast steel, stainless steel and the standard for AISI,DIN, ...