1 Inch Proportional Butterfly Valve Cast Iron
Butterfly valve structure
It is mainly composed of valve body, valve stem, butterfly plate
and sealing ring. The valve body is cylindrical, with a short axial
length and a built-in butterfly plate.
Features
1. The butterfly valve has the characteristics of simple structure,
small size, light weight, low material consumption, small
installation size, fast switching, 90 ° reciprocating rotation, and
small driving torque. It is used to cut off, connect, and adjust
the medium in the pipeline. Has good fluid control characteristics
and closed sealing performance.
2. The butterfly valve can transport mud, and the least liquid
accumulates in the pipe mouth. At low pressure, a good seal can be
achieved. Good adjustment performance.
3. The streamlined design of the butterfly plate makes the fluid
resistance loss small, which can be described as an energy-saving
product.
4. The valve stem is a through-rod structure. After quenching and
tempering, it has good comprehensive mechanical properties,
corrosion resistance and scratch resistance. When the butterfly
valve is opened and closed, the valve stem only rotates and does
not move up and down. The packing of the valve stem is not easy to
damage and the seal is reliable. It is fixed with the taper pin of
the butterfly plate, and the outgoing end is designed to prevent
rushing out, so as to prevent the valve stem from collapsing when
the connection between the valve stem and the butterfly plate is
accidentally broken.
5. Connection methods include flange connection, clip connection,
butt welding connection and lug clip connection.
The driving form includes manual, worm gear transmission, electric,
pneumatic, hydraulic, electro-hydraulic linkage and other
actuators, which can realize remote control and automatic operation
