Manual slide valve
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Manual flapper valve, also known as manual knife gate valve, is a type of valve widely used in the industrial field. The following is a detailed description of the manual flapper valve:
Working principle
The working principle of the manual flapper valve is to control the flow of the medium through the opening and closing of the gate. There is a diameter round mouth on the gate. Manual operation (such as turning the hand wheel or handle) makes the round mouth on the gate completely separate from or coincide with the diameter of the pipeline, so as to realize the opening or closing of the valve.
Structural features
The gate is in close contact with the valve seat: the gate of the manual flapper valve is always in close contact with the valve seat to form a reliable sealing structure.
Simple and compact structure: The structure of the manual slide valve is reasonable in design, the overall structure is compact, and it is easy to install and maintain.
A variety of connection forms: the inlet and outlet of the manual slide valve are square and round, and the appropriate connection form can be selected according to actual needs.Performance advantages
Reliable sealing: Due to the close contact between the gate and the valve seat, the manual flapper valve has excellent sealing performance and can effectively prevent medium leakage.
The operation is light and flexible: the operating mechanism of the manual flapper valve is designed reasonably, which makes the operation light and flexible and easy to control.
Smooth channel: the diameter of the valve body of the manual flapper valve has no groove, the medium will not be blocked, and it has the characteristics of full channel flow.
Anti-wear and automatic compensation function: The sealing seat of the manual slide valve is designed for the movable structure, with anti-wear and automatic compensation functions, which can extend the service life.Scope of application
Manual slide valve is widely used in metallurgy, mining, building materials, food, chemical and other industries, mainly used to control powder, grain material, granular material and small pieces of material flow or transport. In the dust removal system, manual flapper valve is also commonly used to control the dust removal and discharge process of the dust collector.
use and maintenance
Precautions for use:
When using the manual flapper valve, ensure that the operating mechanism is flexible and reliable to avoid damage caused by excessive force or improper operation.
Regularly check the sealing performance of the manual flapper valve, and deal with any leakage in time.
According to the medium characteristics and working environment, select the appropriate material and connection mode of manual flashboard valve.Maintenance:
Regularly clean and lubricate the manual flapper valve to keep it in good working condition.
If it is found that the manual valve is damaged or severely worn, it should be replaced or repaired in time.
Long-term use of manual slide valve should be stored in a dry, ventilated environment, to avoid moisture and corrosion.
In summary, the manual slide valve has been widely used in the industrial field for its simple structure, flexible operation and reliable sealing. During use, attention should be paid to operating specifications and maintenance to ensure its long-term stable operation.
Manual slide valve
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