Water Tank Float Level Switch Vertical Plastic Ball Valve ST-70AB
Water Tank Float Level Switch Vertical Plastic Ball Valve ST-70AB
Water Tank Float Level Switch – Vertical Plastic Ball Valve (Model ST-70AB)
Keep your water pump running efficiently with this reliable Plastic Water Tank Float Level Switch. Designed for both household and industrial applications, this vertical float switch automatically monitors and controls liquid levels in water tanks, cisterns, and reservoirs — no manual monitoring required. Made in Mainland China.
Key Features
- Automatic Liquid Level Control: The buoyancy-driven float mechanism triggers the switch when the water level rises or falls, automatically starting or stopping your water pump.
- Stable & Reliable Performance: Built with high-quality plastic for durability; provides more switching power than a standard control switch.
- Safe by Design: Engineered to eliminate short-circuit and burn-out risks, giving you peace of mind during continuous operation.
- Dual-Use Versatility: Suitable for household water tanks, industrial sumps, sump pumps, and liquid storage systems.
- Easy Installation & Low Power Consumption: Simple vertical mounting with minimal energy draw keeps operating costs low.
- Wide Operating Temperature Range: Functions reliably from 0°C to 70°C, making it adaptable to a variety of environments.
Technical Specifications
| Model Number | ST-70AB |
| Material | Plastic |
| Media Type | Liquid |
| Rated Voltage | AC 110 / 220V |
| Frequency | 50 / 60 Hz |
| Max Current | AC15(3)A |
| Operating Temperature | 0°C – 70°C |
| Max Temperature | 60°C |
| Country of Origin | Made in Mainland China |
How It Works
The float switch operates on a simple yet highly effective buoyancy principle. A plastic float ball is attached to the switch mechanism and rises or falls with the water level. When the liquid reaches a pre-set high or low point, the float triggers the internal switch to open or close the circuit — automatically controlling connected pumps or alarms without any user intervention.
Ideal Applications
- Residential water storage tanks
- Industrial liquid reservoirs and sumps
- Water pump automatic ON/OFF control
- Irrigation and water management systems
- Aquariums and liquid processing equipment
Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: What voltage is this water tank float level switch compatible with?
A: The float level switch (Model ST-70AB) is compatible with both AC 110V and AC 220V, making it suitable for use in different regions and a wide range of household or industrial electrical systems.
Q: Can this float switch be used in both home and industrial water systems?
A: Yes. The plastic water tank float level switch is designed for dual use — it works effectively in residential water tanks as well as in larger industrial liquid reservoirs and sump systems, thanks to its robust construction and wide operating temperature range of 0°C to 70°C.
Q: How is the vertical float switch installed?
A: Installation is straightforward. The switch is mounted vertically inside your water tank or liquid container. The float ball hangs freely and moves up or down with the liquid level, triggering the switch automatically. No specialized tools or expertise are required for a standard installation.
Q: Is this float switch safe to use continuously?
A: Yes. The ST-70AB is engineered to prevent short circuits and burn-out issues. Its stable and reliable design means it can be used for continuous automated liquid level control without compromising safety.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.