Center lined type rubber lining butterfly valve

Short Description:

Features of rubber lined butterfly valve:
1. The design is novel, reasonable, unique in structure, light in weight and quick in opening and closing.
2. Small operating torque, convenient operation, labor saving and dexterous.
3. It can be installed in any position and easy to maintain.
4. The sealing element can be replaced, the sealing performance is reliable, and the two-way sealing is zero leakage.
5. The sealing material has the characteristics of aging resistance, corrosion resistance and long service life. Standards adopted
6. The rubber lined butterfly valve is designed and manufactured by adopting a new structural form of welding the central line type disc plate and short structure steel plate. It is compact in structure, light in weight, easy to install, small in flow resistance, large in flow capacity, easy to operate / 7, without connecting rod, bolt, etc., which is reliable and has long service life. It can be installed in multi station, not affected by the flow direction of medium.
Working principle: the ventilation butterfly valve is driven by the motor to drive the actuator, so that the disc plate can rotate freely within 90 ° to achieve the purpose of opening and closing or regulating the medium flow.

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 material: QT450-10、FCD、WCB、CF8、CF8M、CF3M
Disc material: QT450-10+Galvanized、CF8、CF8M、CF3M、CF8M
Seat material: EPDM
Medium: water, gas, oil, acid-base etc.
Temperature: -29℃≤T≤120℃
Standard: GB/T12238-2008 API609 JIS DIN
Face to face: GB/T12221 API609 JIS DIN
Flange End: GB/T9113 ASME B16.5 JIS DIN
Testing and inspection: GB/T13927 API598

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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