The main control valve product names of China Control Valve Network include:Electric fluorine lined adjustable butterfly valve,Electric louver valve,Electric-pneumatic valve locator, Electric slide valve,Electric small signle seat, sleeve control valve,Electric straight signle and double seat control valve.

What is a Magnetic Coupling Dual-Float Level Valve?

A Magnetic Coupling Dual-Float Level Valve is an advanced fluid control solution designed for reservoirs and tanks. Unlike traditional mechanical float valves, it utilizes a permanent magnet coupling mechanism to drive a pressure-relief plug, ensuring a completely sealed valve body without moving seals.

1. How It Works: The Dual-Float Logic

The valve operates on a unique "staged buoyancy" principle to achieve precise level management:The Closing Phase: As the liquid rises, the first float becomes submerged. However, its buoyancy alone cannot overcome the magnetic force. Only when the second float is submerged does the combined buoyancy trigger the permanent magnet to close the valve.The Opening Phase: As the level drops, the valve remains closed even after the second float loses buoyancy. It only reopens once the liquid falls below the first float, allowing for a significant "level drop" (differential) between filling cycles.

2. Key Technical Advantages

Elimination of Water Hammer: By enabling large-level-drop supply and a smooth pressure-closing mechanism, it protects the pipeline and tank from structural damage caused by sudden pressure surges.Anti-Algae & Water Quality Maintenance: Users can adjust the distance between the two floats to control the water refresh rate, preventing stagnation and the growth of harmful bacteria.Extreme Durability (10+ Years): With a mechanical life exceeding 200,000 cycles, the valve features a seal-free design that operates reliably between 1°C and 150°C and pressures up to 16kg.Anti-Siphon & Easy Installation: The outlet includes a built-in check valve to prevent backflow, while the inlet's union joint supports various pipe diameters.

3. Industrial Applications

This valve is the preferred choice for unmanned automated systems in:Municipal & Construction: Firefighting tanks and domestic water cisterns.Heavy Industry: Petroleum, Chemical, Metallurgy, and Power Generation.Precision Control: Liquid level management for pharmaceutical and thermal engineering.

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2026-03-19

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