... Range:DN50~DN600 Structure:butterfly valve CE,API,ISO,ABS pneumatic butterfly valveSize Range: DN50~DN600Class Range: 150LB-900LB/PN1 ... Offeredpneumatic butterfly valveProducts: We can produce gate, globe, check, ball and butterfly valves with the materials of ductile iron, carbon ... , we are confident to delivery the high quality valve products available to our customers. pneumatic butterfly valve