Bi-axial center lined type rubber butterfly valve

Short Description:

1. The fit between butterfly plate and valve rod is designed as double shaft internal installation type without locating pin structure;
2. Because the butterfly plate is designed as a pinless double shaft structure, the influence of the long axis of the traditional butterfly valve passing through the butterfly plate on the space occupied by the flow channel is reduced;

Product Detail


Product Tags

DN: DN50-DN800 2’’-32’’
PN: PN1.0MPa/PN1.6MPa/150LB/10K/16K
Connection type: Wafer, Flange
Operation: Handle, worm gear, pneumatic, electric
Body: QT450-10、FCD、WCB、CF8、CF8M、CF3M
Disc: QT450-10+Zinc coating、CF8、CF8M、CF3M、CF8M
Seat: EPDM
Medium: water, gas, oil, acid and alkali
Temperature: ≤120℃
Standard: GB/T12238-2008 API609 JIS DIN
Face to face: GB/T12221 API609 JIS DIN
Flange standard: GB/T9113 ASME B16.5 JIS DIN
Testing and inspection: GB/T13927 API598 JIS DIN

Butterfly valve, also known as flap valve, is a simple structure of control valve, can be used for low-pressure pipeline medium switch control butterfly valve refers to the closing part (disc or butterfly plate) as a disc, rotating around the valve shaft to open and close a valve.

The valve can be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium. It is mainly used for cutting off and throttling on the pipeline. The opening and closing part of butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjusting.

1. Butterfly valve has the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, fast switch, 90 ° reciprocating rotation, small driving torque, etc. it is used to cut off, connect and adjust the medium in the pipeline, and has good fluid control characteristics and sealing performance.
2. The butterfly valve can transport mud and store the least liquid at the pipe mouth. Under low pressure, good sealing can be achieved. Good regulation performance.
3. The streamline design of butterfly plate makes the loss of fluid resistance small, which can be described as an energy-saving product.
4. The valve rod is a through rod structure, which has good comprehensive mechanical properties, corrosion resistance and scratch resistance after quenching and tempering treatment. When the butterfly valve is opened and closed, the valve rod only rotates and does not move up and down. The packing of the valve rod is not easy to be damaged and the sealing is reliable. It is fixed with the taper pin of the butterfly plate, and the extended end is designed to prevent the valve rod from collapsing when the connection between the valve rod and the butterfly plate breaks accidentally.
5. There are flange connection, clamp connection, butt welding connection and lug clamp connection.
The driving forms include manual, worm gear drive, electric, pneumatic, hydraulic and electro-hydraulic linkage, which can realize remote control and automatic operation

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