Angle Type Fixed Water Level Valve

Angle Type Fixed Water Level Valve is a pilot-operated hydraulic control valve with 90-degree angular flow channel, specially designed for side-wall installation of water tanks and reservoirs. Widely used in domestic water supply tanks, fire protection water storage tanks, water treatment facilities and industrial water storage systems. Matched with float assembly, it realizes fully automatic water replenishment according to liquid level without manual intervention.

The valve body is cast from high-strength ductile iron with stable pressure resistance and impact resistance. Standard pressure grades are PN10 and PN16 with flanged connection. The valve operates entirely driven by fluid medium pressure and requires no external power supply. The main valve adopts angle structure, which can be directly installed on the tank wall, effectively saving pipeline space and simplifying construction layout.

Working principle: When the water level in the tank drops, the float descends to open the pilot channel. The pressure inside the main valve control chamber is released, and the medium pressure pushes the internal valve disc open to start water inflow. As the liquid level rises to the preset height, the float lifts and closes the pilot passage. Pressure accumulates in the control chamber, pushing the valve disc to close tightly and stop water supply automatically. The target liquid level can be adjusted conveniently by changing the installation height of the float component.

Different from straight-type remote float valves, the angle structure avoids complicated elbow transition pipelines. It is suitable for large-diameter water intake projects and features large flow capacity and stable operation. Standard specifications cover DN50 to DN600. Applicable media include tap water, fire service water and clean industrial water, operating temperature ranging from 0℃ to 80℃.

Installation and operation reminders: Install strictly following the flow arrow marked on the valve body. A Y-type strainer must be equipped upstream to prevent sediment blocking the small pilot pipeline. Ensure the float and connecting rod move freely without collision or jamming caused by water wave impact. This valve is applied for automatic on-off control of liquid level and cannot be used for continuous flow regulation.

All finished valves pass strict shell hydrostatic test, sealing test and float linkage test before delivery. Each unit is inspected to ensure sensitive pilot response and reliable shut-off performance when reaching the set water level. It is an ideal automatic water inlet device for various water storage facilities.

With compact angle layout, hydraulic self-operation, unattended liquid level control and easy installation on tank wall, Angle Type Fixed Water Level Valve gains wide recognition among global water engineering contractors. Our factory can provide different flange standards and customized anti-corrosion coatings to satisfy diversified procurement demands of water supply and fire protection projects.