Key Plastic Float Switch Water Level Controller Water Tower Water Tank Automatic Control Switch 220V AC Contactor
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Product Details
| Customization: | Available |
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| Installation Type: | Wall-Mounted Type |
| Sensing Type: | AC Contactor Float Switch |
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Basic Info.
- Model NO.
- KEY Plastic Float Switch
- Contact
- Contactless
- Output Signal Type
- Analog Type
- Production Process
- Normal Wirewound
- Material
- Plastic
- Measuring Medium
- Humidity
- IP Rating
- IP20
- Certification
- CE
- Customized
- Customized
- Type
- Key Plastic Float Switch
- Main Material
- Plastic
- Switching Voltage
- 0–220V AC/DC (Supports 380V with Contactor)
- Current
- 5A
- Operating Temperature
- 0-50℃
- Transport Package
- Plastic and Carton
- Specification
- Plastic
- Trademark
- LUJINXUN
- Origin
- China
- HS Code
- 8516909000
- Production Capacity
- 5000PCS
Packaging & Delivery
- Package Size
- 15.00cm * 15.00cm * 10.00cm
- Package Gross Weight
- 1.000kg
Product Description

Specification
Specification Size
KEY Plastic Float Switch Water Level Controller Water Tower Water Tank Automatic Control Switch 220V AC Contactor
The length of the float switch wire 2m, 3m, 4m, 5m, 6m, 8m, 10m, 15m, 20m 25m.
220V AC contact (applicable within 2640W)+float switch wire length 2m, 3m, 4m, 5m, 6m, 8m
Type | KEY Plastic Float Switch |
Main Material | Plastic |
Switching voltage | 0–220V AC/DC (Supports 380V with contactor) |
Current | 5A |
Operating temperature | 0-50℃ |




Product Description
Product Introduction
Plastic KEY square float ball is a liquid level control device carefully designed by using the principles of gravity and buoyancy, and its structure is simple and reasonable. Its core component is a square floating body, which is made of high-quality plastic and has excellent sealing and stability, ensuring the accuracy and reliability of liquid level control. At the same time, the floating ball is connected with the cable, which is convenient to connect with external control equipment and transmit the liquid level signal.
Product Advantage
Stable and reliable performance:
unique structural design, so that it will not cause misoperation due to slight fluctuation of liquid level. In a complex liquid environment, even if the liquid level is unstable due to factors such as stirring and temperature change, the plastic KEY square float ball can accurately judge the liquid level state and continuously output stable control signals.
Excellent material, corrosion resistance:
Excellent material, corrosion resistance:
the selected plastic material has the characteristics of non-toxicity and corrosion resistance. In the sewage treatment plant, in the face of sewage containing corrosive components such as acid and alkali, the liquid level control equipment of ordinary materials may be damaged due to corrosion, which will affect the normal operation of the equipment. The plastic KEY square floating ball can work stably for a long time with its excellent corrosion resistance, which greatly reduces the maintenance cost and equipment replacement frequency.
Simple installation, low cost:
Simple installation, low cost:
the installation process does not require professional tools and complicated operation procedures, and ordinary people can quickly complete the installation. Compared with some high-end liquid level control equipment, its price is very close to the people, and its later maintenance is simple. It only needs to regularly check whether the appearance of the floating ball is damaged and whether the cable connection is stable. The overall use cost is low, which is very suitable for projects with limited budget.
Long service life:
Long service life:
high-quality materials and exquisite manufacturing technology give it a long service life. Under the normal use environment, it can work continuously for many years, reducing the time and economic cost caused by frequent equipment replacement, and providing users with reliable long-term liquid level control solutions.
Product Operate Guide
Preparation before installation
Confirm the liquid level range: according to the highest and lowest water levels of the water tank and pool, determine the installation height of the floating ball to ensure that its tail connecting rod or interface can freely expand and contract when the liquid level changes without shielding.
Check media compatibility: confirm the temperature and pH of the liquid in the use environment to prevent the plastic material from being damaged.
Installation and fixation
For the connecting rod floating ball: fix the tail connecting rod on the bracket on the inner wall of the equipment through buckles or screws, and adjust the length of the connecting rod, so that when the head of the floating ball is completely immersed in the liquid, it just triggers the control module.
For the interface type floating ball: it is connected with valves, switches and other components through the tail threaded interface, and then the whole device is installed in the installation position reserved for the equipment to ensure that the floating ball can float freely up and down with the liquid level without jamming.
Confirm the liquid level range: according to the highest and lowest water levels of the water tank and pool, determine the installation height of the floating ball to ensure that its tail connecting rod or interface can freely expand and contract when the liquid level changes without shielding.
Check media compatibility: confirm the temperature and pH of the liquid in the use environment to prevent the plastic material from being damaged.
Installation and fixation
For the connecting rod floating ball: fix the tail connecting rod on the bracket on the inner wall of the equipment through buckles or screws, and adjust the length of the connecting rod, so that when the head of the floating ball is completely immersed in the liquid, it just triggers the control module.
For the interface type floating ball: it is connected with valves, switches and other components through the tail threaded interface, and then the whole device is installed in the installation position reserved for the equipment to ensure that the floating ball can float freely up and down with the liquid level without jamming.

Product Uses
Civil life:
Household water tank and solar water heater: the floating ball is linked with the valve. When the water level reaches the set height, the floating ball drives the valve to close and stop the water inflow; When the water level drops, the valve is reopened to replenish water to avoid water overflow or dry burning.
Toilet water tank: the float ball controls the water inlet valve. When the water level in the water tank is low, the water inlet valve will be closed after the water level reaches the preset position, so as to ensure that the water tank can be automatically filled with appropriate water after flushing.
Industrial production:
All kinds of liquid storage tanks: the floating ball level gauge can monitor the liquid level in the tank in real time and transmit it to the control system through mechanical or electronic signals, and give an alarm when the liquid level is too high or too low to ensure production safety.
Sewage treatment: In the sedimentation tank, regulating tank and other facilities, the floating ball is used to monitor the liquid level and control the start and stop of the drainage pump to ensure the stable operation of the sewage treatment process.
Household water tank and solar water heater: the floating ball is linked with the valve. When the water level reaches the set height, the floating ball drives the valve to close and stop the water inflow; When the water level drops, the valve is reopened to replenish water to avoid water overflow or dry burning.
Toilet water tank: the float ball controls the water inlet valve. When the water level in the water tank is low, the water inlet valve will be closed after the water level reaches the preset position, so as to ensure that the water tank can be automatically filled with appropriate water after flushing.
Industrial production:
All kinds of liquid storage tanks: the floating ball level gauge can monitor the liquid level in the tank in real time and transmit it to the control system through mechanical or electronic signals, and give an alarm when the liquid level is too high or too low to ensure production safety.
Sewage treatment: In the sedimentation tank, regulating tank and other facilities, the floating ball is used to monitor the liquid level and control the start and stop of the drainage pump to ensure the stable operation of the sewage treatment process.
Packaging & Shipping
Fast shipping
Please provide full name,correct post code and valid phone number to avoid any delay of delivery.
We guarantee to ship out within 3-5 working days after payment confirmed.
If there is any unexpected situation,we will contact you as soon as possible.
We guarantee to ship out within 3-5 working days after payment confirmed.
If there is any unexpected situation,we will contact you as soon as possible.
Company Profile

Machine shop
Dongguan Lujinxun Electric Heating Appliance Co., Ltd.
Located at Shipai-Dongguan, it`s established in 2019. Through the years we have taken the trust from customers from all over the world. Our main products have thermocouple, cartridge heater, immersion heaters, silicone heaters, band heater and heating elements. We have excellent craftsmanship, reliable security, good value and good after-sale service.
Enterprise philosophy: Customer and quality first, product quality is the vitality of an enterprise.
Located at Shipai-Dongguan, it`s established in 2019. Through the years we have taken the trust from customers from all over the world. Our main products have thermocouple, cartridge heater, immersion heaters, silicone heaters, band heater and heating elements. We have excellent craftsmanship, reliable security, good value and good after-sale service.
Enterprise philosophy: Customer and quality first, product quality is the vitality of an enterprise.
After Sales Service
About Feedback
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If you are unhappy with service or any other problem,Please contact us before leaving feedback,and we will resolve the issue immediately.
Customer's satisfaction is our goal!
If you are unhappy with service or any other problem,Please contact us before leaving feedback,and we will resolve the issue immediately.
Customer's satisfaction is our goal!
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