Flange butterfly valve with gearbox generally adopts three eccentric multi-level metal hard sealing structure, which is widely used in metallurgical, electric power, petrochemical, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃ for flow regulation and fluid carrying and breaking. The valve adopts a three eccentric structure. The sealing surfaces of the valve seat and disc plate are made of stainless steel with different hardness. It has good corrosion resistance and long service life. The common connection methods of Diesa turbine flange butterfly valve are divided into flange type turbine stainless steel butterfly valve and wafer type stainless steel butterfly valve.
Product advantages
- Small size, light weight, easy disassembly, assembly and maintenance, and can be installed at any position.
- Simple structure, compact structure, small working torque and fast 90 ° rotation.
- The flow characteristics tend to be straight and the regulation performance is good.
- The connection between the butterfly plate and the valve rod is pin free.
- The outer circle of the butterfly plate adopts a spherical shape, which improves the sealing performance and prolongs the service life of the valve, and maintains zero leakage of more than 50000 times under pressure.
- The seal can be replaced, and the seal is reliable for two-way seal.
- The butterfly plate can be sprayed according to user requirements, such as nylon or PTFE.
- The valve can be designed for flange connection and clamping connection.
