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Reliability Meets Compact Design: Endress+Hauser Liquiphant FTL31 (FTL31-AA4M2AAWBJ) Now in Stock!

Endress+Hauser Liquiphant FTL31 Vibronic Point Level Switch
(Order Code: FTL31-AA4M2AAWBJ / FTL31-1102/0)

The Endress+Hauser Liquiphant FTL31-AA4M2AAWBJ is a compact, reliable point level switch for liquids, utilizing vibronic (tuning fork) technology. Designed for universal industrial applications, it is ideal for overfill protection, pump dry-run protection, and level detection in tanks, vessels, and pipes .


Technical Specifications

Parameter Specification
Manufacturer Endress+Hauser
Product Series Liquiphant FTL31
Measuring Principle Vibronic (Tuning Fork) 
Application Point level detection for liquids 
Process Connection G1/2" Thread (ISO228) 
Wetted Materials 316L Stainless Steel 
Output Type 3-Wire / PNP 
Supply Voltage 10 to 30 VDC 
Electrical Connection M12 Plug 
Process Temperature -40°C to +100°C (Sensor) / up to 150°C (max) 
Ambient Temperature -40°C to +70°C 
Process Pressure Vacuum to 40 bar (580 psi) 
Min. Medium Density >0.7 g/cm³ (>0.5 optional) 
Housing Material 316L Stainless Steel 
Protection Rating IP65 / IP67, NEMA Type 4X 
Certifications CSA C/US, EAC, WHG Overfill Protection 


Applications

  • Overfill Protection: Prevents tank overflow in storage vessels .

  • Pump Dry-Run Protection: Safeguards pumps in cleaning systems, cooling circuits, and lubrication vessels .

  • Chemical & Industrial: Reliable point level detection in liquids, unaffected by changing media properties .

  • General Purpose: Suitable for tanks, pipes, and vessels in the machinery industry .

    Endress+Hauser Liquiphant FTL31-AA4M2AAWBJ | Vibronic Point Level Switch | PNP

    • Safe & Reliable: Continuous self-monitoring ensures safe switching, even during power supply loss .

    • Maintenance-Free: No moving parts eliminate wear and reduce maintenance costs .

    • Independent of Media: Accurate switching unaffected by conductivity, foam, or turbulence .

    • Plug & Play: No calibration required, significantly reducing installation and commissioning time .

    • Global Approvals: WHG, marine approvals, and inspection certificates available 

    Endress+Hauser Liquiphant FTL31-AA4M2AAWBJ tuning fork level switch. 10-30VDC, PNP output, G1/2 thread, 316L, M12 plug, -40 to 70°C ambient.

    Optimized for Diverse Applications

    The FTL31-AA4M2AAWBJ is the professional choice for overfill prevention and pump dry-run protection in cleaning systems, storage tanks, and industrial machinery. Its robust, compact design is ideally suited for various liquid-handling industries.


    Secure Your Supply Today

    We currently have original, factory-sealed units of the Endress+Hauser FTL31-AA4M2AAWBJ / FTL31-1102/0 ready for immediate worldwide shipping.

    Don’t compromise on process safety. For bulk pricing or technical consultations, please visit our product page at  https://www.hkxytech.com/ or contact our sales team at sales1@hkxytech.com &86-(WhatsApp)  


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