Float Control Valve

Float Control Valve


Basic Information
Basic Information
This valve controls the level of the water in the water tower or sink.
Features
Features
1. Stable and reliable work, large flow;
2. Disc fast open and slowly closed, no water hammer impact;
3. Good sealing effect and long service life;
4. Install at any location along with the height of the water tank and the working space.
Principle
Principle
When the pipe supplies water from the inlet end, because the needle valve, ball valve and float ball valve are normally open, water enters the water tank through the micro-filter, needle valve, control room, ball valve and float ball valve. At this time, there is no pressure in the control room; When the water level of the water tower rises to the set height, the ball float closes the ball float valve, controls the indoor water pressure rise, pushes the main valve to close and the water supply to stop. When the water level drops, the float valve reopens, the water pressure in the control room drops, and the main valve opens again to continue the water supply, keeping the setting height of the liquid level.
Installation and Commissioning
Installation and Commissioning
Horizontal installation is preferred for remote-controlled ball float valve. The main valve and ball float pilot valve can be remotely installed as a whole. This valve is installed in the water system and debugged. The globe valve is opened. The main valve needle valve is opened for 2 to 4 rounds. The ball valve is fully opened. For specific use, please consult ZhengFeng Valve Group.

Part

Material

Standard

Body

Ductile Iron

EN 1563/DIN 1693

Bonnet

Ductile Iron

EN 1563/DIN 1693

Trim

Stainless Steel 431

EN10088-1/ASTM A959

Seat

Stainless Steel 431

EN10088-1/ASTM A959

Diaphragm

EPDM / NBR

ISO 4633

Pilot Valve

Stainless Steel 431

EN10088-1/ASTM A959

For the materials options not listed, consult factory.

ZhengFeng manufactures valves in more than 50 different alloys.

Product scope, Standards & Materials
Size Range: 2"~24"
Pressure Rating: 10bar ~ 25bar
Face to Face Dimensions: AMSE B16.10, EN558-1
Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2
Coating: Fusion Bonded Epoxy Coating
Inspection and Test: ISO 5208 / EN 12226-2

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