high performance butterfly valves
High Performance Butterfly Valves For throttling control applications, the butterfly valve is the current industry standard: the high performance butterfly valve or double eccentric valve. It benefits from a straight-through flow path, ultra-high capacity and the ability to allow solids and viscous media to pass through. High performance butterfly valves are suitable for general applications that do not require precise throttling control.
Because they cost less than other control valves, high performance butterfly valves are often used in applications requiring large sizes and high temperatures. Such valves must be carefully selected and used to avoid control problems associated with process load variations for constant process load applications. The design uses special waveforms and the control range can be extended to that of a segmented ball valve.
High performance butterfly valves are widely used in metallurgical, power, petrochemical and water supply and drainage industrial pipelines where the temperature of the medium is less than or equal to 250°C to regulate the flow and cut off the fluid. High performance butterfly valve adopts spherical seal, floating seal structure and eccentric structure, with long service life, the valve has two-way sealing function. The product conforms to GB / T13927-92 valve pressure test standard.
Installation and maintenance of high performance butterfly valve
1. During installation, the high performance butterfly valve disc should be stopped in the closed position.
2. The opening position should be determined according to the rotation angle of the butterfly plate of the high performance butterfly valve.
3.For butterfly valve with bypass valve, the bypass valve should be opened first and then opened.
4. Installation should be carried out in accordance with the manufacturer’s installation instructions, and the heavy-duty butterfly valve should have a solid foundation for installation.
5.The butterfly plate of the high performance butterfly valve is installed in the diameter direction of the pipeline, and the disc-shaped butterfly plate rotates around the axis in the cylindrical channel of the butterfly body, and the rotation angle is between 0° and 90°, and the valve opens completely when the rotation reaches 90°.
6. If high performance butterfly valve is required to be used as flow control, the main thing is to choose the correct size and type of valve, and the construction principle of butterfly valve is especially suitable for manufacturing large diameter valves.
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