Manual plug-in valve; Also known as manual knife gate valve, knife gate valve is a type of valve in which the gate and valve seat are always in close contact and sealed. Its principle is that the gate has a circular opening of the same diameter, and the opening and closing of the gate allows the circular opening on the gate to move away from and match the diameter. Manual plug-in valve is the main control equipment, widely used in metallurgy, mining, building materials, and grain. Manual plug valve is usually used in conjunction with the discharge device for the flow rate or conveying capacity of powders, crystalline granules, granular materials, and small pieces of materials. The diameter of the manual spiral gate valve is matched with the feeding port of the discharge device, and there are two types: square and circular.

Manual plug-in valves are often used in conjunction with unloading devices or silos. Manual spiral gate valves are easy to install with flange connections, and there are two types of inlet and outlet ports: square and circular. There are dozens of specifications according to the diameter, and they are widely used in industries such as metallurgy, carbon, chemical, and building materials. The manual plug-in valve has the advantages of simple and compact structure, sealing, easy and flexible operation, small volume, smooth channel, low resistance, easy installation, and easy disassembly. The manual spiral gate valve can be installed horizontally or vertically, and has the characteristics of anti wear and automatic compensation, long service life, etc. During normal use, the transmission parts of manual plug-in valves should be regularly inspected and lubricated for maintenance.

Installation and instructions for manual plug-in valve:

1. Before installing the plug-in valve, it is necessary to check the valve chamber and sealing surface, and no dirt or sand particles are allowed to adhere to them;

2. The bolts at each connection point should be tightened evenly;

3. Check the filling position for tightness, ensuring both the sealing of the filling and the flexibility of the gate opening;

4. Before installing the valve, users should check the valve model, connection size, and pay attention to the flow direction of the medium to ensure consistency with the valve requirements;

5. When installing valves, users should reserve space for valve actuation;

6. The wiring of the driving device must be carried out according to the circuit diagram;

7. The plug-in valve should be regularly maintained and should not be bumped or squeezed at will to avoid affecting the sealing.