This type of butterfly valves use triple eccentric multi-layered metal seal structure to feature no mechanical wear, zero leakage and outstanding two-way sealing. They have been used to handle different media in the pipeline of petroleum, chemical, metallurgy, electric power, foodstuff, pharmacy, water supply and drainage and gas transportation etc. as an optimal choice to adjust the flow, cut off or put through the fluid.

Featured by reasonable design, small moment, easy operation, quick open/close, light weight and low price, this type of butterfly valves are used for ventilation and flow regulation of media in pipeline Gray cast iron (HT200 and HT250 )Spheroidal graphite cast iron (QT400 and QT450 ) Carbon steel (WCB, WCC and LCB) Chromium-molybdenum steel (WC5, WC6 and WC9) Alloy steel  Stainless steel (CF3, CF8, CF3M, CF8M, ZG1Cr18Ni9Ti and ZG1Cr18Ni12Mo2Ti)

Flanged butterfly valve, stainless steel butterfly valve, cast steel butterfly valve 1. Structure & Features (1). Wiht three-eccentric structure, the body sealing faces are elastic metal rings and multi-layer sealing face to make the disc contact the sealing face of body reliably and get no leakage for air sealing. (2). Unique structure, flexible operation, labor saving, convenient and long-time usage. (3). Three-eccentric design of temperature resistant, corrosion resistant and friction resistant