Handle clamped butterfly valve

The handle clamp butterfly valve has a compact structure, easy 90 ° rotary switch, excellent sealing, and long service life. It is widely used in water plants, power plants, steel mills, papermaking, chemical, catering and other systems for water supply and discharge, as well as for regulating and shut-off purposes

1. Basic Structure and Working Principle of Handle Clamp Butterfly Valve

Handle clamp butterfly valve is composed of valve body, valve plate, sealing ring, handle, and connecting equipment.

. Among them, the valve plate is a key component of the butterfly valve, which adopts a double eccentric structure, which can immediately break the seal when the valve plate leaves the valve seat, thus achieving the purpose of cutting off the fluid at a suitable speed. The valve plate can also adjust the size and shape of the fluid channel by changing the angle of the handle, thereby achieving flow regulation and fluid controlThe working principle of the handle clamped butterfly valve is that when the handle rotates, the valve plate follows suit. The sealing ring on the valve seat will come into contact with the valve plate and compress, forming a complete sealing ring. When the handle is rotated to the closed position, the valve plate leaves the valve seat, and the sealing ring immediately disconnects, thereby cutting off the fluid passage

2. Advantages of Handle Clamp Butterfly Valve

(1) Simple structure and easy installation: Handle clamp butterfly valve has a simple structure, fewer components, can be disassembled and installed at a suitable speed, and can be maintained and replaced without affecting the normal operation of the pipeline.

(2) Low flow resistance and high flow rate: The valve plate of this butterfly valve adopts a double eccentric structure. When the valve is fully opened, the flow resistance is very small and the flow rate is high. Therefore, this butterfly valve is suitable for situations that require high flow rate and low resistance(3) Good sealing: The sealing ring of the handle clamp butterfly valve is made of elastic material, which has good sealing performance and excellent effect, avoiding leakage problems(4) Long service life: This butterfly valve is mainly composed of metal and rubber materials, with a long service life and low maintenance costs

III. Selection and Precautions for Use

When selecting a butterfly valve with a handle clamp, the following factors should be considered: medium characteristics, working pressure and temperature, pipeline size, flow requirements, and usage environment.

. Precautions for use include: checking the integrity and correctness of valve seals before installation; Attention should be paid to the opening of the valve during operation to prevent damage to the valve due to excessive opening or closing; Regularly check the sealing and operability of the valve during use, and promptly address any issues