Endress Hauser Liquiphant FTL50 Vibronic Level Switch 316L Stainless Steel
Price:
USD 500
MOQ:
1 pc
Delivery Time:
7-14 days
Brand:
E+H
Product Description
Endress Hauser Liquiphant Float Level Switch FTL50 FTL51 FTL50H FTL51H E+H Vibronic Point Level Switch
Product Specifications
| Attribute | Value |
|---|---|
| Turndown Ratio | 100:1 |
| Measurement Range | 0-100 feet |
| Wetted Materials | 316L stainless steel |
| Protocol | HART/RS485 |
| Protection | IP67 |
| Process Connection | 1/2" NPT |
| Communication Protocol | HART |
| Material | Stainless steel |
| Pressure Sensing Element | Piezoresistive |
| Warranty | 2 years |
| Flange Material | 316SST |
| Thread | M18 |
| Weight | 0.5 kg |
| Housing Material | Aluminum |
Product Overview
Working Principle (Vibronic / Tuning Fork)
- Features a metal tuning fork vibrating at natural resonance (~85 Hz)
- In air/gas: Fork vibrates freely at higher frequency
- When liquid covers fork: Vibration dampens, frequency decreases, triggering state change
- Operates independently of conductivity, dielectric constant, density (≥0.5 g/cm³), and viscosity (≤10,000 mm²/s)
Key Features
- Compact design for tight spaces, pipes, and small tanks
- No calibration required - plug-and-play operation
- Selectable failsafe modes (high for overfill, low for dry-run protection)
- Self-monitoring electronics with NAMUR NE 107 status signal
- Wide media compatibility (water, oils, aggressive chemicals)
- Maintenance-free with no moving parts
- SIL2/3 certified per IEC 61508 for safety-critical applications
Technical Specifications
- Measuring task: Point level detection in liquids
- Process temperature: -40°C to +150°C (standard), up to 280°C (special versions)
- Process pressure: Up to 40 bar (580 psi)
- Density limit: ≥0.5 g/cm³ (suitable for light hydrocarbons/solvents)
- Viscosity range: Up to 10,000 mm²/s
- Pipe diameter: ≥25 mm
- Output options: Relay (SPDT), PNP/NPN transistor, 2-wire AC/DC, NAMUR signal, Fieldbus (PROFIBUS PA, FOUNDATION Fieldbus)
- Protection ratings: IP66/67, NEMA 4X
- Explosion protection: ATEX, IECEx, FM, CSA, NEPSI
Applications
- Tank overfill protection and safe shutdown systems
- Pump dry-run protection
- Pipeline leak detection
- SIL-rated safety-critical loops
- Water & Wastewater treatment
- Chemical and Petrochemical processes
- Oil & Gas operations
- Food & Beverage production (hygienic versions available)
- Power plant applications
Model Variants Comparison
| Model | Design | Application | Temp/Pressure | Notes |
|---|---|---|---|---|
| FTL50 | Short fork, compact body | Tight spaces, small vessels, pipes | -40...150°C, up to 40 bar | Standard model for general use |
| FTL51 | Longer fork (extended insertion) | Large tanks, storage vessels | Up to 280°C, 100 bar | Higher temp/pressure capability |
| FTL51C | Hygienic design (polished) | Food & Beverage, Pharma | CIP/SIP cleaning, sterile | EHEDG/3A compliant, FDA materials |
| FTL62/FTL64 | Premium series | High-temp/high-pressure, safety-critical | Wider range | SIL 3 certified, advanced diagnostics |
Certifications & Standards
- Functional Safety: SIL2/3 (IEC 61508)
- Explosion Protection: ATEX, IECEx, FM, CSA, NEPSI
- Marine approvals: ABS, BV, DNV GL, LR
- Hygienic standards: EHEDG, 3A, FDA-compliant materials (FTL51C)
- Process safety compliance: WHG (German Water Resources Act)
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xi'an Xiyi Central Control Technology Co., Ltd.
Location
Room 2204, Unit 1, No. 91, Taoyuan South Road, Xi'an, Shaanxi, China
Contact Person
Lee