Publish Time: 2023-08-14 Origin: Site
The blowdown gate valve is an evolution of the gate, which uses the gear rotation of 90 degrees to drive the valve stem to lift to achieve the purpose of opening and closing. The Blowdown gate valve (blowdown gate valve) not only has a simple structure and good sealing, but is also small in size, lightweight, less material consumption, small installation in size, especially small driving torque, easy operant, and easy to achieve rapid opening and closing. Next, a brief introduction to the structure and working principle of the lower blowdown gate valve.
Here is the content list
l Features of blowdown gate valves
l The working principle of the blowdown gate valve
l The structural principle of the blowdown gate valve
The sewage valve has a simple structure, good sealing, and small size, lightweight, less material consumption, small installation size, especially small driving torque, easy operation, easy to achieve fast opening and closing.
1. The blowdown gate valve body and the valve cover are connected by clamp type, which has a compact structure, easy disassembly, and easy installation, and the branch pipe is welded connection.
2. It adopts a pressure self-tightening sealing structure, and the sealing ring is made of molded asbestos packing, the higher the medium pressure, the better the sealing.
3. The medium flows into the downward sewage from the branch pipe.
4. The blowdown gate valve disc is a piston structure and is treated with the organization. Corrosion resistance, erosion resistance. Long service life.
1. The multi-way sewage valve must be installed vertically on the horizontal pipeline.
2. Turn the handwheel valve stem counterclockwise to drive the valve core to gradually move up, the sealing surface is disengaged, the guide seat on the valve core is gradually removed from the inner hole of the valve seat, forming a narrow gap, and the medium enters the inside of the valve seat through the symmetrical throttle hole on the valve seat, and a small amount of medium can flow out through the narrow slit, gradually reducing the system pressure.
3. Continue to rotate the handwheel counterclockwise, the valve core moves upward, the throttle hole on the guide seat is removed from the inner cavity of the valve seat, and more medium is smoothly discharged after throttling through the guide seat and valve sleeve.
4. Continue to turn the handwheel counterclockwise, and the valve core is moved up to the fully open position, at this time, the medium pressure is greatly reduced, a large number of impurities can be directly discharged from the valve sleeve throttle hole, and a vortex is formed at the inverted sealing seat, and the sealing surface is constantly cleaned to prevent impurities from adhering to the sealing surface.
Above, we have introduced some characteristics of the blowdown gate valve. The working principle and structural characteristics of the blowdown gate valve are also introduced. We are a company specializing in the production of sewage valves if you have the need you can contact us.