
UQK Stainless Steel Flange Float Level Switch
304 stainless steel flange float level switch
High temperature and corrosion resistance
Reinforced flange plate with sealing gasket
Seamless welding with excellent sealing performance
High-sensitivity reed switch structure
Suitable for industrial liquid level control systems

Application
Industrial storage tanks and water tanks
Chemical liquid storage systems
Oil and fuel tanks
Water treatment systems
Pump control systems
Industrial automation equipment
High and low level alarm systems
Boiler and high-temperature liquid systems
Industrial wastewater systems
Description
The UQK stainless steel flange float level switch is a reed switch type liquid level controller designed for industrial liquid level monitoring and automatic control systems. Featuring a flange mounting structure, the product provides secure installation, excellent sealing performance, and stable operation in harsh industrial environments.
Made of high-quality thickened 304 stainless steel, the product offers excellent corrosion resistance, high temperature resistance, and long service life. The reinforced flange plate combined with high-quality rubber sealing gasket effectively prevents leakage and improves sealing reliability.
The switch adopts seamless welding technology to prevent impurities and moisture from entering the internal structure, ensuring stable switching performance and reliable operation. The stainless steel adjustment plate structure further improves mechanical strength and durability.
With high sensitivity and stable reed switch performance, the product is suitable for water tanks, chemical liquids, oil tanks, water treatment systems, and industrial automation equipment.
Features
- High-quality thickened 304 stainless steel construction
- Excellent corrosion resistance and high temperature resistance
- Reinforced flange plate for secure installation
- High-quality rubber gasket with reliable sealing performance
- Thickened stainless steel adjustment plate structure
- Seamless welding technology prevents impurity intrusion
- High-sensitivity reed switch with stable operation
- Suitable for harsh industrial environments
Technical Details
Product Type:
Float Level Switch
Product Model:
UQK-01 / UQK-02 / UQK-03
Material:
304 Stainless Steel
Size:
See attached drawing
Type:
UQK Stainless Steel Flange Float Level Switch
Operating Temperature:
-30°C to +120°C
Installation Method:
UQK-01: Horizontal Installation UQK-02: Horizontal Installation UQK-03: Vertical Installation
Action Boundary:
UQK-01: 10mm UQK-02: 25~550mm UQK-03: 8~1000mm
Setting Method:
UQK-01: Non-adjustable UQK-02: Step-adjustable UQK-03: Steplessly Adjustable
Working Pressure:
1.6MPa
Output Contact Capacity:
220~380VAC 1A
Flange Material:
Thickened 304 Stainless Steel
Seal Type:
High-quality Rubber Sealing Gasket
Switch Type:
High-Sensitivity Reed Switch
Protection Level:
IP65 or Higher
Accessories
What is the UQK stainless steel flange float level switch used for?
The UQK stainless steel flange float level switch is used for liquid level detection, monitoring, and automatic control in industrial tanks and vessels. It is widely used in: Water tanks and reservoirs Chemical tanks Oil tanks Sewage and wastewater systems Industrial automation equipment Pump control systems Boiler and heating systems It can provide high-level alarm, low-level alarm, overflow protection, and pump start/stop control.
What is the main feature of the UQK series?
The UQK series uses a flange-mounted stainless steel structure, offering: Strong and stable installation Suitable for large tanks and industrial equipment Reliable sealing performance High mechanical strength Long service life It is especially suitable for industrial liquid level control applications.
What materials are used in the float switch?
The float ball, rod, and flange are made of stainless steel (typically SU304). Advantages include: Corrosion resistance High temperature resistance Strong durability Suitable for industrial liquids 316 stainless steel versions may be available for corrosive media.
How does the float level switch work?
The switch uses a magnetic float and reed switch principle. When the liquid level changes: The float moves with the liquid The internal magnet approaches the reed switch The reed switch opens or closes the circuit This creates an ON/OFF control signal for liquid level automation.
Can it directly control pumps or solenoid valves?
No — not recommended for direct load switching. The internal reed switch is designed for low-current signal applications and should not directly control inductive or high-power loads such as pumps or solenoid valves. Recommended solution: Control signal → relay or PLC input Pump or valve → relay / contactor / motor starter ⚠️ In low-power applications (small DC pumps or low-current valves), direct switching may be possible only if the load is within the switch rating. Direct connection may reduce lifespan or damage the reed contacts.
Is it suitable for high-temperature or corrosive environments?
Yes. The stainless steel structure provides: Good corrosion resistance High temperature resistance Stable performance in industrial environments For stronger corrosion resistance, 316 stainless steel is recommended.
Can the rod length and float quantity be customized?
Yes. Customization options include: Rod length Float quantity Flange size Mounting dimensions Cable length OEM / ODM production This allows compatibility with different tank structures and project requirements.
What liquids is it suitable for?
Suitable for: Water Oil Industrial liquids Chemical liquids compatible with stainless steel Wastewater and sewage Not recommended for: Heavy sludge High-viscosity liquids with severe buildup
What are the advantages of flange mounting?
Flange mounting provides: Stronger mechanical support Better sealing for large tanks Easier installation in industrial equipment Suitable for high-pressure or large-volume systems Better long-term stability
What should buyers confirm before ordering?
Before purchasing, buyers should confirm: Liquid type Working temperature Working pressure Required rod length Float quantity Flange standard and size Installation direction NO / NC logic Electrical specifications Quantity and customization requirements This helps ensure proper installation and system compatibility.















