The Endress+Hauser Liquiphant FTL51B is the latest generation vibronic point level switch designed for reliable and safe liquid level detection in industrial processes. As part of the Proline family, the FTL51B combines high measurement stability, digital connectivity, and diagnostic intelligence, making it ideal for safety-critical applications such as overfill protection and pump dry-run protection.
With Heartbeat Technology, the FTL51B offers continuous self-monitoring and easy verification without interrupting the process. Its robust stainless-steel construction and broad operating ranges make it suitable for chemicals, oil & gas, energy, water treatment, and hygienic industries.
Advanced Vibronic Detection: Works reliably regardless of viscosity, density, or conductivity.
Heartbeat Technology: Continuous diagnostics and easy verification for improved safety.
Digital Connectivity: HART, IO-Link, and other digital communication options available.
High Safety Integrity: SIL2/SIL3-certified for protection applications.
No Calibration Required: Simple and maintenance-free installation.
Harsh Environment Compatibility: Operates under high temperature and high pressure.
Robust Stainless Steel Sensor: Long service life even in aggressive liquids.
Predictive Maintenance: Early status warnings reduce downtime.
| Parameter | Description |
|---|---|
| Model | Liquiphant FTL51B |
| Measurement Principle | Vibronic point level detection |
| Media | All types of liquids |
| Process Temperature | –50°C to +150°C (depending on version) |
| Process Pressure | Up to 100 bar |
| Material | Stainless steel sensor and process connection |
| Communication | HART, IO-Link, relay, NAMUR |
| Certifications | SIL2 / SIL3, ATEX, IECEx (variant dependent) |
| Process Connections | Threaded and flanged options |
| Housing | Aluminum, coated aluminum, or stainless steel |
| Applications | Overfill protection, dry-run protection, safety monitoring |
Chemical and Petrochemical Plants
Ideal for storage tanks, reactors, and corrosive liquids.
Oil & Gas Industry
Trusted for high-pressure process vessels and safety loops.
Water & Wastewater Treatment
Used for pump stations, basins, and level safety control.
Energy and Power Plants
Suitable for boiler systems and hot liquid detection.
Food & Beverage
Reliable even in viscous media and hygienic environments.
SIL-certified for high process safety
Immune to foam, turbulence, and gas bubbles
Minimal maintenance with no mechanical wear
Accurate point detection under all process conditions
Digital verification without removing the device
Supported by Dr. Industry Group’s global supply and engineering team
Large inventory of Endress+Hauser level instruments
Fast international delivery to Middle East, Southeast Asia, Central Asia
Professional support from experienced automation engineers
Competitive pricing and stable supply for OEM and EPC customers
Contact Email: edwardzhao@gbsxj.com
Phone/WhatsApp: +86-15000725058
