Manual gate valve is a gate and seat always close contact sealing valve, the principle is that there is a diameter size of the round opening on the gate, through the gate opening and closing to make the round opening on the gate and diameter to do the action of disengagement and matching.
Manual gate valve is the main control equipment, widely used in metallurgy, mining, building materials, food.
Manual gate valve usually manual gate valve is a kind of powder, grain material, granular material and small pieces of material flow or throughput in the discharge device matching use, manual spiral gate valve diameter and discharge device feeding port matching, there are square and round two.
Manual gate valve is often used with unloading device or bin matching, manual spiral gate valve flange connection is easy to install, in and out of the material mouth has square and circular two kinds, according to the size of the caliber of dozens of specifications, widely used in metallurgy, carbon, chemical, building materials and other industries. Manual gate valve has the advantages of simple and compact structure, reasonable design, reliable sealing, light and flexible operation, small volume, smooth passage, small resistance, easy installation, easy disassembly and so on. Manual spiral gate valve can be installed horizontally or vertically, with anti-wear and automatic compensation function and long life. Manual gate valve in the normal use of the transmission parts should be regularly checked, add lubricating oil to do a good job of maintenance.
Manual gate valve installation and instructions
1. Check the valve cavity and sealing surface before installing the gate valve, and do not allow dirt or sand particles attached;
2. Bolts at all connection parts should be tightened evenly;
3. Check the packing parts to ensure the sealing of the packing and flexible opening of the gate;
4. Before installing the valve, users need to check the valve model, connection size and pay attention to the medium flow to ensure consistency with the valve requirements;
5. When installing the valve, the user needs to reserve the space for driving the valve;
6. Wiring of the driving device shall be carried out according to the circuit diagram;
7. The gate valve shall be maintained regularly. Collision and extrusion shall not be allowed, so as not to affect the seal.