A remote control float valve uses a rotating valve core to open or close the valve. Ball valves are easy to operate, compact, can be made in large diameters, offer reliable sealing, have a simple structure, are easy to maintain, and the sealing surface and the ball are constantly in a closed state, making them less susceptible to erosion by the medium. They are widely used in various industries.
Core Performance Characteristics
Automatic Level Control
The valve opens and closes through changes in the buoyancy of the float, maintaining the liquid level within a set range.
Remote Control Capability
Remote operation can be achieved via electric, pneumatic, or hydraulic actuators, eliminating the need for manual intervention on-site.
High Sealing Performance
Soft seals (such as rubber) or hard metal seals are used to ensure no leakage when closed.
Pressure and Corrosion Resistance
Valve body materials (such as cast iron and stainless steel) and sealing materials are suitable for various media (water, oil, corrosive liquids).
Energy Saving and Environmental Protection
Reducing overflow or dry pumping, lowering energy consumption and water waste.
Working Principle
Float-based Liquid Level Sensing
The float is connected to the valve core via a lever or connecting rod, and floats up and down with the liquid level.
Water Level Drop: The float sinks, pulling the lever to open the valve, allowing water to enter.
Water Level Rise: The float rises, pushing the lever to close the valve, stopping water intake.
Remote Control Mechanism
Electric Type: Receives electrical signals from the PLC or control system to drive the motor to operate the valve core.
Pneumatic/Hydraulic Type: Uses compressed air or hydraulic oil to push a piston to change the valve position.
In remote mode, automatic float control can be manually overridden.
Valve Structure and Action
Commonly angle or straight-through structures. Valve core design (e.g., gate valve, stop valve) affects flow characteristics.
Fast opening/closing or slow closing designs can prevent water hammer.
Typical Application Scenarios
Water Tank/Tower Supply: Maintains a constant water level, preventing overflow or drying up.
Sewage Treatment: Regulates the liquid level in sedimentation tanks and equalization tanks.
Industrial circulation systems: cooling towers, boiler feedwater, etc.
Agricultural irrigation: automatic control of large-scale water storage tanks.