The mud discharge valve is widely used in water treatment plants for the removal of sludge and wastewater from the discharge tank. This valve features an angled design and a reinforced nylon rubber diaphragm, ensuring long-term durability and reliable performance. It is commonly referred to as a cover valve and is primarily installed at the bottom of sedimentation tanks in municipal water and sewage treatment facilities.
The main components of the mud valve include cast iron, stainless steel, and nylon-reinforced rubber, which contribute to its strength and resistance to corrosion. The standard flange dimensions follow GB4216 specifications, with sizes ranging from H: 125 to 375 and DN: 50 to 300. These valves are designed for efficient operation in environments where the medium is primary sewage, with a temperature limit of under 50°C and a working depth of less than 10 meters.
Structurally, the mud valve has several notable features. The valve cover includes a built-in screw, allowing direct operation via a handle when the water depth is shallow. The valve plate is tapered and arched, with self-guiding capabilities that reduce the force required to open or close it. The screw and sealing surfaces are made from tin bronze, offering excellent resistance to corrosion and wear. Additionally, the valve can be operated using a flashlight dual-purpose hoist, enabling microcomputer control for enhanced efficiency.
When ordering, users should specify the depth (H value) of the sedimentation tank to determine the length of the connecting shaft. The operation mode is typically manual, but electric versions can be requested upon order. Flange dimensions shown in the table are standard, though special sizes can be customized based on specific requirements.
There are two main types of mud valves: hydraulic and pneumatic angle valves. The key feature of these valves is the use of a dual-chamber diaphragm mechanism instead of a piston, eliminating motion-related wear and extending the service life. The product consists of a hydraulic cylinder and a corner stop valve, where the hydraulic power drives the flap to open or close the passage, allowing fluid flow. The piston seal is an L-shaped bowl, providing excellent sealing performance and durability. The valve disc and seat are soft-sealed, ensuring no leakage and reliable operation.
The mud discharge valve is often installed in water supply stations or other pools to remove sediment efficiently. It comprises a valve body, hydraulic cylinder, piston, stem, and disc, with the hydraulic cylinder acting as the power source. The piston and stem function as switches, allowing the valve to open in just one minute. A manual or solenoid valve must be connected for remote control of the mud valve's operation. With strong sealing, flexible switching, easy maintenance, and a service life of over five years, this valve is a dependable solution for wastewater management.
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