Materials:

O    Body: Ductile iron, cast iron, stainless steel and WCB

O    Disc: Stainless steel, Al-bronze and ductile iron

O    Shaft: Stainless steel (spline shaft without pins)

O    Seat: EPDM, NBR, Viton and PTFE

         General Design: API 609

         Face-to-face: API 609 and EN 558 1 to 20 series

         Flange Drilling: ANSI class 125/150, class 300 and DIN PN10/16/25/40 JIS10K/16K

         Actuating Form: hand lever, worm gear, electric actuator and pneumatic actuator

         Size: DN25 to DN1200

         Double Hale-stem butterfly valve is single and compact in structure and lightweight, and easy to assemble and disassemble

         Operating Torque of it is small, then turning 90 (it can open or close with light and Fast action)

         It is small in flowing resistance and good in energy-saving effect, with discharge characteristic Approximating inclined straight line

         It is Featured by reliable sealing, zero leakage with ten thousands of opening and Closing time

         Valve can be Made of various materials, adapted to all kinds of media

         It is used in the pipeline and vessels for conveying various corrosive and non-corrosive Fluid media in the engineering systems of water supply, generating, petroleum, Gas, environmental protection and also for regulating and cutting off the off the flowing of media