Overview and Characteristics of Marine Butterfly Valves
The marine butterfly valve is a valve widely used in marine systems. It has the advantages of simple structure, small size, light weight, and convenient operation, so it is widely used in the liquid pipeline system of ships.
1. The butterfly valve has the characteristics of simple structure, small size, light weight, low material consumption, small installation size, rapid switching, 90° reciprocating rotation and small driving torque. It is used to cut off, connect and adjust the medium in the pipeline, and has good fluid control characteristics and closing and sealing performance.
2. The butterfly valve can transport mud, and the liquid accumulated at the nozzle is the least. At low pressure, a good seal can be achieved. Good conditioning properties.
3. The streamlined design of the butterfly plate makes the loss of fluid resistance small, which can be called an energy-saving product.
4. The valve stem is a through-rod structure, which has good comprehensive mechanical properties, corrosion resistance and scratch resistance after quenching and tempering. When the butterfly valve is opened and closed, the valve stem only rotates and does not rise and fall. The packing of the valve stem is not easy to be damaged and the seal is reliable. It is fixed with the tapered pin of the butterfly plate, and the extension end is designed to prevent the valve stem from collapsing when the connection between the valve stem and the butterfly plate breaks accidentally.
5. The connection methods include flange connection, clamp connection, butt welding connection and lifting ear clamp connection.
The driving forms include manual, worm gear, electric, pneumatic, hydraulic etc. It can realize remote control and automatic operation.
