Products Description
Eccentric hemisphere valve is a relatively new category of ball valves, featuring unique structural advantages such as frictionless switching, wear-resistant sealing, and small opening/closing torque. This allows for the reduction in the size of the matched actuator. When paired with a multi-turn electric actuator, it enables both precise medium regulation and tight shutoff. It is widely used in industries such as petroleum, chemical, and municipal water supply and drainage, where strict shutoff is required.
Working principle:
It operates by rotating the valve chain to open or close the valve. Ball valves are easy to operate, compact in size, and can be manufactured in large diameters. They feature reliable sealing, simple structure, and easy maintenance. The sealing surface and ball surface remain in a closed state most of the time, making them resistant to medium erosion. As a result, they are widely used across various industries.
Products specification
Size Range: DN50~2600mm NPS2"~104"
Pressure: PN0.6~4.0MPa Class150/Class300
Body Material: Ductile Iron, WCB, LCB, CF8, CF8M, CF3, CF3M, A890 4A, Alloy Steel
Operation: Manual, Worm Gear, Pneumatic, Electric
Features:
Top-mounted design - Allows direct online inspection and maintenance of valves installed in pipelines, effectively reducing plant shutdowns and cutting costs.
Single-seat configuration - Eliminates safety risks caused by abnormal pressure buildup in the valve chamber.
Low-torque operation - Features a specially designed stem that enables easy manual operation with a small handwheel.
Frictionless movement - Completely resolves sealing issues caused by friction between sealing surfaces in traditional valves.
Wedge seal mechanism - Utilizes mechanical force from the stem to wedge the ball against the seat, ensuring consistent sealing performance regardless of pipeline pressure differentials.
Self-cleaning seal surfaces - When the ball tilts away from the seat, fluid flows 360° uniformly across the sealing surface, preventing localized erosion by high-speed fluids while removing accumulated deposits for automatic cleaning.
Our Eccentric Half Ball Valve
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