PEEK Flange-Type Liquid Level Sensor for Corrosive Chemicals

1. Why You Need It

Strong acids, alkalis, slurries and electrolytes rapidly corrode metal level sensors, causing premature failure and false readings. This PEEK flange-type level sensor uses a PEEK probe — a polymer with exceptional chemical resistance — to detect these aggressive liquids reliably. With IP68 protection, a switch signal output and a G1/4 thread mounting, it provides dependable level detection for chemical storage, electroplating and slurry applications.

2. Working Principle

The sensor detects liquid contact through capacitive sensing with a PEEK probe that resists attack from acids, alkalis and solvents. When the liquid reaches the probe, the sensor switches its output signal. The PEEK material provides chemical inertness, while IP68 protection and overload/reverse protection ensure durability. Factory-set with water as the base medium, the sensor is ready for commissioning via a handheld device.

3. Key Advantages

• PEEK probe — acid/alkali resistant
• Built for chemical slurry and electrolyte
• IP68 protection
• Switch signal output
• G1/4 tube thread mounting
• -40 to 80 °C operating range
• -0.1 to 0.6 MPa pressure resistance
• Reverse / overload protection
• Handheld device setting
• Corrosion-resistant detection

Common Pain Points & Solutions

Application Cases

Technical Specifications

FAQ

Q: What is a PEEK flange-type level sensor?

It is a liquid level sensor with a PEEK probe and flange mounting, designed to detect aggressive liquids such as strong acids, alkalis, slurries and electrolytes. PEEK is a high-performance polymer with exceptional chemical resistance.

Q: Why use PEEK for corrosive chemicals?

PEEK is chemically inert and resists attack from strong acids, alkalis and solvents that would corrode metal sensors. This gives the sensor a long service life in chemical, electroplating and slurry applications.

Q: What is the protection grade?

It is IP68 rated, meaning it is protected against dust and continuous immersion. This is important for sensors installed in tanks where the probe or body may be submerged in the liquid.

Q: What output does it provide?

It provides a switch signal output, which triggers a relay or PLC input when the liquid reaches the probe. The sensor is factory-set with water as the base medium and adjustable via a handheld device.

Q: How is it mounted?

It is mounted via a G1/4 tube thread, a common industrial connection. The flange design allows secure installation into the tank wall or top.

Q: What temperature and pressure can it handle?

It operates from -40 to 80 °C and withstands process pressure from -0.1 to 0.6 MPa, covering most chemical storage and process conditions.

Q: What media can it detect?

It detects strong acids, alkalis, chemical slurries, electrolytes and other corrosive liquids. For unusual chemical mixtures, compatibility should be confirmed with the specific process.

Q: What protection features does it have?

It includes reverse polarity and overload protection, which prevent damage from electrical faults and extend the sensor's service life.

Q: How is it commissioned?

The sensor is factory-set with water as the base medium and can be adjusted using a handheld device. This allows the switch point to be tuned for the specific liquid and tank.

Q: Where is it used?

It is used in acid storage tanks, electroplating electrolyte baths, mining slurry tanks and alkali dosing tanks. It provides corrosion-resistant level detection for aggressive chemical applications.