MODULATING FLOAT VALVE
Model-AD-100 MFV
Overview
A Modulating Float Valve is a hydraulically operated, self-actuated control valve designed to maintain a constant liquid level in tanks, reservoirs, and sumps by modulating the valve opening in response to level changes.
Unlike simple on-off float valves, the modulating float valve opens and closes gradually, preventing water hammer and ensuring smooth, accurate level control.
Key Features
- ✓Proportional (modulating) operation
- ✓Smooth and silent operation
- ✓Prevents water hammer
- ✓Fully automatic operation
- ✓Accurate level control
Working Principle
The valve operates automatically using line pressure, without external power.
- ✓The float mechanism senses the liquid level in the tank or reservoir.
- ✓As the water level drops, the float signals the valve to open proportionally, allowing inflow.
- ✓As the water level rises toward the set level, the valve modulates toward closing.
- ✓When the desired level is reached, the valve remains nearly closed, maintaining a stable level without frequent cycling.
This continuous modulation ensures precise level control and quiet operation.
Key Functions
- ✓Maintains constant water level
- ✓Proportional (modulating) valve operation
- ✓Prevents overflow and dry running
- ✓Reduces water hammer and noise
- ✓Ensures stable and reliable tank operation
Main Components
- ✓Main Control Valve Body (Diaphragm Type)
- ✓Modulating Float Assembly
- ✓Pilot Control System
- ✓Control Tubing and Fittings
- ✓Pilot Line Strainer
Applications
Water Tanks
Ground and elevated water tanks
Service Reservoirs
Service reservoirs
Sumps and Basins
Sumps and storage basins
Municipal Systems
Municipal water supply systems
Irrigation Storage
Irrigation storage tanks
Industrial Facilities
Industrial water storage facilities
Advantages
- ✓Smooth and silent operation
- ✓Accurate level control
- ✓Fully automatic operation
- ✓No external power required
- ✓Reduces mechanical wear and maintenance
- ✓Long service life
Typical Specifications
Customizable to meet specific requirements
- ✓Size Range: DN 50 to DN 300 (and above on request)
- ✓Pressure Rating: PN 10 / PN 16 / PN 25
- ✓Body Material: Ductile Iron / Cast Steel
- ✓Float Material: Stainless Steel / Plastic
- ✓Coating: Fusion Bonded Epoxy (FBE)
- ✓End Connections: Flanged EN / ISO / ANSI
- ✓Operating Medium: Water
Why Choose Our Modulating Float Valve?
Our Modulating Float Valves are engineered to deliver accurate level control, smooth modulation, and long-term reliability. Manufactured and tested to international standards, they provide an efficient and maintenance-friendly solution for modern water storage systems.