Worm Gear Grooved Butterfly Valve

The Worm Gear Grooved Butterfly Valve is a high-performance, easy-install manual control valve optimized for medium and large-diameter water pipeline systems. Different from hand lever butterfly valves, it adopts a worm gear transmission mechanism, which effectively reduces operating torque, enabling smooth and labor-saving opening and closing even for larger sizes and higher pressure conditions. Equipped with standard grooved ends, the valve can be quickly connected to fire pipes and grooved pipe fittings without welding or flanges, greatly improving construction efficiency and reducing overall project costs.

This butterfly valve features a compact and integrated structure with a ductile iron valve body covered with anti-corrosion epoxy coating, providing excellent rust and corrosion resistance for long-term indoor and outdoor use. The valve disc is made of high-quality stainless steel with precise polishing treatment, ensuring smooth fluid passage and preventing scale accumulation. The high-elastic EPDM rubber liner realizes bidirectional zero-leakage sealing, adapting to long-term circulating water, fire water, and general industrial water medium environments. The sealing surface offers outstanding aging resistance and pressure resistance, maintaining stable performance after repeated operations.

The worm gear actuator is the core highlight of this valve. The gear deceleration structure converts small rotational force into powerful driving torque, allowing operators to open or close the valve effortlessly. It is equipped with a precise scale dial and self-locking function, which can accurately fix the valve opening degree to avoid position deviation caused by water hammer, medium impact or pipeline vibration. This design effectively enhances pipeline stability and safety, making it more reliable than lever-type valves for large bore and high-pressure working conditions.

Benefiting from the grooved connection design, the valve features fast installation, simple disassembly and convenient later maintenance. It does not require complex flange alignment or professional welding work, which shortens construction time and lowers installation difficulty. The overall volume is small and the weight is light, making it suitable for ceiling hidden installation, narrow pipe wells, intensive pipeline arrangement and other limited-space scenarios. It also supports quick replacement and system debugging during pipeline renovation.

Mainly rated at PN10 and PN16, this worm gear grooved butterfly valve covers conventional diameters from DN50 to DN300. It is widely applied in fire protection water supply systems, municipal water supply and drainage, HVAC central air-conditioning water circulation, industrial factory water systems, building water supply and secondary water supply projects. With labor-saving operation, accurate flow adjustment, reliable zero-leakage performance and high installation efficiency, it has become an essential control valve for modern civil construction and industrial pipeline systems.

In conclusion, the Worm Gear Grooved Butterfly Valve perfectly integrates labor-saving worm gear transmission, durable sealing technology and efficient grooved connection structure. It is a stable, cost-effective and low-maintenance pipeline control solution, widely recognized for fire protection, municipal engineering and industrial water system applications.