The Endress+Hauser Liquiphant FTL51 is a high-performance vibronic point level switch designed for reliable level detection in liquids. Known for its high safety integrity, robust stainless steel design, and SIL2/SIL3 certification, the FTL51 is widely used in chemical, oil & gas, water treatment, food & beverage, and industrial process applications.
With its proven vibronic measurement principle, the Liquiphant FTL51 detects the presence or absence of liquid with exceptional reliability, even under extreme temperature, pressure, or process conditions. This model is ideal for overfill protection, pump dry-run protection, and safety-critical applications.
Vibronic point level detection for all types of liquids
Maintenance-free design with no mechanical moving parts
High safety capability (SIL2 and SIL3 certified)
Reliable performance unaffected by viscosity, density, or conductivity
Suitable for harsh environments with high pressure and temperature resistance
Built-in self-monitoring for enhanced operational safety
Universal power supply options for flexible installation
Easy integration with control systems and DCS platforms
| Parameter | Description |
|---|---|
| Model | Liquiphant FTL51 |
| Measurement Principle | Vibronic point level detection |
| Media | Liquids (independent of viscosity/density) |
| Process Temperature | –50°C to +150°C (depending on version) |
| Process Pressure | Up to 100 bar |
| Certifications | SIL2 / SIL3, ATEX, IECEx (varies by configuration) |
| Probe Material | Stainless steel |
| Output Options | Relay, PNP/NPN, 4–20 mA, NAMUR |
| Housing Options | Aluminum, stainless steel, coated |
| Process Connections | Threaded or flanged (DIN/ASME) |
| Applications | Overfill protection, pump dry-run protection, safety monitoring |
Chemical and Petrochemical Plants
Reliable level detection for tanks, reactors, and pipelines.
Oil & Gas Industry
Suitable for high-pressure vessels and safety-critical systems.
Food & Beverage Production
Hygienic and robust for demanding process environments.
Water & Wastewater Treatment
Ideal for pump stations, reservoirs, and clarifiers.
Pharmaceutical and Biotech
Accurate and consistent measurement required for quality control.
High level of operational safety
No calibration required
Works in all liquid media
Resistant to foam, turbulence, and gas bubbles
Long service life with minimal maintenance
Supported by Dr. Industry Group’s global export and technical team
Large inventory for fast delivery
Professional technical support from experienced engineers
International export expertise (Middle East, Southeast Asia, Central Asia)
Competitive pricing and reliable after-sales service
Contact Email: edwardzhao@gbsxj.com
Phone/WhatsApp: +86-15000725058
