The mud discharge valve is widely used in water treatment plants for the removal of sludge and wastewater from the discharge tank. It features an angled design and an internal nylon-reinforced rubber diaphragm, ensuring long-term durability and reliable performance. The main components of the mud valve include cast iron, stainless steel, and nylon-reinforced rubber, which contribute to its robust construction.
The standard dimensions of the mud valve (with flange connections following GB4216) include various sizes such as H: 125, 145, 155, 175, 200, 225, 275, 325, 375, and DN: 50, 65, 80, 100, 125, 150, 200, 250, 300. Known as a cover valve, it is commonly used in urban water treatment plants and sewage facilities to remove sludge from the bottom of sedimentation tanks.
This type of valve is suitable for handling primary sewage, with operating temperatures typically below 50°C and working depths under 10 meters. Its structural features include a self-tightening screw on the valve cover, a tapered and arched valve plate with built-in guidance, and a low opening force. The screw and sealing surfaces are made of tin bronze, offering excellent resistance to corrosion and wear. It can also be operated using a dual-purpose hoist with microcomputer control.
When ordering, users should specify the depth of the sedimentation tank (H value) to determine the length of the connecting shaft. The operation mode is usually manual, but electric versions can be requested upon order. Standard flange dimensions are provided, but special sizes must be specified during ordering.
There are two main types of mud discharge valves: hydraulic and pneumatic angle valves. Their key feature is the use of a dual-chamber diaphragm mechanism instead of a piston, resulting in no mechanical wear and a longer service life. The valve consists of a hydraulic cylinder and a corner stop valve, where the hydraulic power moves the flap to open or close the passage, enabling fluid flow. The L-shaped bowl seal in the hydraulic cylinder ensures strong sealing and long-lasting performance.
The valve disc and seat are soft-sealed, providing excellent leakage-free operation. It uses either an electric or manual two-position four-way reversing valve for centralized control, making it easy to operate. These valves are typically installed in water treatment facilities to remove sediment continuously. They consist of a valve body, hydraulic cylinder, piston, stem, and disc, with the hydraulic cylinder acting as the power unit. The piston and stem function as switches, allowing quick operation—only one minute is needed to open the valve.
To remotely control the mud valve, it must be equipped with a manual or solenoid valve. The mud discharge valve offers strong sealing, smooth operation, easy maintenance, and a long lifespan, often exceeding five years. For more details, visit: http://?432.html
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