Butterfly Valve Features: Designed and Manufactured of Butterfly Valve to BSEN593 and MSS SP-67 and API 609 Butterfly Valve is Suitable to ANSI 125/150, BS4504, DIN flanges Size Ranges of Butterfly Valve: NPS 2"~52" Pressure Rating: PN10/16, ANSI125/150/300/600/900 Materials of Butterfly Valve available in Iron, Steel, Stainless Steel, Duplex and Bronze, Seat Material in Both Resilient and Metal Type, Different trim materials of Butterfly Valve are available to suit different service conditions Butterfly Valve Fire-safe design : API 608/API 6FD upon request, MSS SP 01-75 On request. Operations of Vango Butterfly Valve: Lever, Worm-gear, Electric, Pneumatic and Hydra-pneumatic. Depend on the detailed information you will requested.