BAOYI twi-offset-seat butterfly valve has the dual-eccentric structures, namely valve rod and butterfly plate, wherein the sealing structure includes elastic sealing structure and multilevel sealing structure, and the seal can be separated at the opening/closing moment. The product design can meet such relevant standards as API 609 and EN 593. Generally, the product can be widely applied as the control equipment for cutting off or connecting the medium and adjusting the flow in the pipelines for petroleum, chemical product, metallurgy, electric power, food, medicine, water supply and drainage, gas delivery, etc.

·Multi-eccentric sealing structure, small opening/closing torque, flexible and convenient operation;
·Multilevel metal seal for resisting to wash, corrosion and wear;
·The soft seal can be designed as a fire resisting structure according to relevant requirements;
·The sealing ring can be conveniently adjusted and maintained on the butterfly plate;
·The opening degree of the butterfly plate can be adjusted according to the working conditions;