Water-Supply Type Buoy Switch, FK Buoy Level Switch, Pump Buoy
Submersible pump float switch
Level sensor
Buoyancy sensor
1Taiwan Pump2JustFK1Buoy ball2Taiwan Pump3Only float ball switch, if squareFK2Level gauge, then one pump required1JustFK2Level gauge2Single pump in use, one in reserve2OnlyFK2Level Gauge Note that:2Taiwan pump forFK1Can be set up for alternating start of pump wheels And usingFK2Level gauge installation, not feasible2Tai pump starts simultaneously
Jiangsu Du'an Environmental Protection, Nanjing Lan Shen, or other domestic pump float level switches are meticulously designed by referencing similar products from both domestic and international markets, actively absorbing and blending the advantages of numerous similar products. This is achieved through bold improvements to the original product structure by our technical staff. The switches are made with magnets and imported electronic components, offering benefits such as simple structure, ease of use, stable performance, long service life, and easy installation and maintenance.
Almost applicable to level measurement and control in various industrial automation processes, it can be widely used in level measurement, control, and monitoring in sectors such as oil processing, food processing, chemical industry, water treatment, electricity, papermaking, metallurgy, shipping, and boilers.
The float switch typically has three wires, one main wire and two wires that are normally closed and normally open (which can be distinguished with a multimeter). They can be connected according to your needs.2Root or3Root wire.
Installation Precautions for Water Pump Float Switch:
1The installation location should be far from the water inlet; otherwise, the switch may operate erroneously due to fluctuations at the water inlet.2If the switch device is installed on the container pool wall, it can be fitted with additional features.LAngle steel bracket.3If the switch device is in the mixing area, a shock tube or shock baffle can be installed.4Select a flanged pipe with an inner diameter larger than the diameter of the float ball.5Recommend using multi-core cables for wiring.6The load of the controlled circuit must match the capacity of the float switch contacts.7The specific gravity of the liquid being tested must be greater than the specific gravity of the float.8The action point of the float ball has been adjusted according to the customer's order requirements at the time of manufacture. Please do not adjust the position of the float ball arbitrarily. When the float ball switch is used in circuits with electrical inductive loads such as motors, relays, solenoid coils, etc., it is recommended to parallel a protection circuit at both ends of the load, such as:RCBuffers, variable resistors, diodes, etc. Caution: Do not directly connect the float switch to the solenoid valve, motor, or solenoid switch. When using a float switch in capacitive loads such as with capacitors, incandescent bulbs, or long cables, a surge current will be generated between the switch contacts; it is recommended to parallel a protective circuit at both ends of the float switch, such as a current-limiting resistor or a surge absorber.

Bubbling level gauge, also known as a floating switch, submersible pump float, float switch, water pump float switch, and float micro-switch
Model:FK2
FK2A cable float level switch is a high-seal floating switch..CategorizedFK2 WithFK3 ,FK2Is a secondary continuous output,FK3It's a three-line normally open and normally closed switching output..The cable float level switch is suitable for controlling the operation of liquid pumps.,Level Adjustment,Can also be used to control and protect the motor for a submersible pump..High-seal performance is ensured through the use of polypropylene injection..
Buoy Switch Technical Parameters
Rated Current/Voltage:10A/220VAC SPDT.Operating Temperature:-10Celsius~80Plastic, Celsius Degree.Control Accuracy:±0.05m.Applicable Medium:Clear water, wastewater, oils, and acidic or alkaline liquids with concentrations below medium.. Length:5m、10m、15mAvailable for customization.Electrical lifespan:100000Next.
FK-2Type Floating Ball Open Closed
Built-in switch mechanism, no clogging or jamming issues.
On-site fixed installation, with freely adjustable liquid levels.
Excellent corrosion resistance and long service life.

Application and Features:
FK2The float switch's housing is made of engineering plastic, containing a fully enclosed mercury switch within its sealed sphere. It operates by utilizing the buoyant force of the liquid, flipping the sphere as the liquid level rises or falls, thereby engaging or disengaging the internal switch. The action is reliable and has a long service life, effectively controlling the pump's start, stop, and alarm functions. This product is widely used in automatic control systems for water supply and drainage.
Technical Data and Specifications:
Model:FK-2Drainage type Built-in Normally Open Switch
Please provide the Chinese content you would like translated into American English.Large Working Voltage:AC220V DC110V
PricedHigh working current:1A(COSФ≥0.4)
Cable Length:10Rice
Ball diameter:74mm
Sphere Length:132mm
Sphere Weight:150g
III. Terms of Use:
Medium Specific Gravity: 0.5~2.0g/CM3
MediumPHValue:6-8.5
Please provide the Chinese content to be translated into American English.Large working temperature:-10℃-+60℃
Please provide the Chinese content to be translated.High Working Pressure:0.15Mpa
Section 4: Basic Working Principle
FK2Float switch utilizes the buoyant force of the liquid to automatically flip the float during its ascent or descent, emitting a control signal, position2Location1The flip point when rising; at this moment, the internal mercury switch of the float ball changes from open circuit to closed circuit. Position2Location3It is the turning point of the decline, at which the internal mercury switch of the float ball changes from closed to open circuit.
V. Installation Instructions and Usage Notes:
1.The ball float movement length should be less than the distance between the fixed support and the wall.
2The submersible ball height must be higher than the pump's submersion level.
3The float switch installation should be at an appropriate distance from the pump suction inlet to prevent the float switch from being drawn into the water inlet.
4The float switch installation should be at an appropriate distance from the water flow entrance to prevent incorrect sensing due to water wave impact. If necessary, please add a wave-deflecting board.
5The float cable is directly connected to the control box. Avoid intermediate joints. Never immerse the cable joint in water.







