Pressure class:class150~class600 6bar~50barDiameter range:3"~160"Material:WCB,LCB,LCC,CF8,CF8M,CF3M,CF3,CN7M,CF8C,WC9,C5,C12Actuating mode:manual, electric, pneumatic, pneumatic-hydraulic,etc.Characters:1. Sealing ring is made of stainless steel, with the double advantages metal hard seal and elastic seal , No matter in the low and high temperature, excellent sealing performance, and has corrosion resistance,long life and other characteristics2. Butterfly plate seal face use the butt weld cobalt-based hard alloy, seal face wear resistance and long service life3. Butterfly plate strength high ,flow the area is large, small flow resistance4. This valve with two-way sealing function, installation shall not be subject to the restrictions of the flow   direction of medium, and is not subject to the influence of the space position, can be installed in any direction