... :ISO,CE,API,ABS,WATERMAR History:17 years (Since1994) 3-way butterfly valve/directional valveSize Range: DN15~DN3500Class Range: 150LB- ... Steel AndOther Materials Available To OrderEnd Connection: Flanged, Screwed, Socket Weld Or Butt Weld Offered Products: We can produce gate ... , globe, check, ball and butterfly valves with the materials of ductile iron, carbon steel, alloy steel, ...