The FL-8850 PTFE series paddlewheel flow sensors are perfectly suited for harsh chemical environments, providing accurate and reliable measurement results. The shaft and bearings are wear-resistant and do not react with the medium, resulting in no metal precipitation, making them suitable for high-cleanliness/corrosive conditions such as pure water and chemical processing.
This series of sensors features high accuracy, long service life, ease of operation, low power consumption, and resistance to chemical corrosion.
Main Technical Specification
| Flow Range | 0.15--8m/S |
| Caliber Range | DN15--DN600 |
| Output Signal | Square Wave and NPNNPN;40-50Hz/m/S; |
| Supply Voltage | DC 5—24V Recommend DC 24V |
| Linearity | 1% |
| Accuracy of Repeatability | 0.5% |
| Working Pressure/Temperature | PP: 12.5bar@25℃-1.7bar@80℃; CPVC: 12.5bar@25℃-1.7bar@80℃; PVDF: 12.5bar@25℃-2.5bar@100℃; PTFE: 12.5bar@25℃-2.5bar@100℃; SS316L: 30bar@100℃ |
| Material of Filtration Parts | Body of Sensor: PP/CPVC/PTFE/PVDF; Axis/Bearing: Al2O3/ZrO2/SS316L/HC/Ti ; O-Ring: FPM/EPDM ; Rotor:PP/ABS/PVDF/PTFE |
| Defense Applies | IP68/IP65 |
Structure
1 Body of Sensor; 2 Sensor Nut ; 3 Paddle-wheeler ; 4 Bearing ; 5 Axis ; 6 O ring
PTFE impeller flow sensor Main Functions
Pulse signal compatibility: It can be directly connected to the pulse output of the paddlewheel flow sensor you mentioned, converting it into a 4-20mA current signal or digital signal for connection to a PLC/control system.
Corrosion-resistant material compatibility: Compatible with PVDF/PP paddlewheel probes, suitable for corrosive media, and perfectly matched to the sensor material in your picture.
Split style long-distance installation and integral installation applies to any complicated field installation conditions.
It has stable square wave output and open-collector NPN with strong driving force.
IP68 defense applies to any serious field working environment.
It has excellent suitability which can combine other various brands with the same type directly.
Multi-functional integration: Some models can simultaneously monitor flow rate, conductivity/resistivity, and temperature, enabling multi-parameter monitoring.
Flow transmitter FL-8850 Application
Water Treatment Industry: Monitoring product water flow rate and conductivity/resistivity in pure water preparation to determine membrane condition and water quality compliance.
Circulating Cooling Water Systems: Monitoring flow rate and water quality in cooling towers, air conditioning/industrial circulating water to control wastewater discharge and prevent scaling and corrosion.
Wastewater Treatment/Electroplating Industry: Monitoring flow rate and conductivity of acidic/alkaline wastewater and chemical cleaning solutions; PTFE impeller sensors offer strong corrosion resistance.
Pure Water/Ultrapure Water Transportation: Monitoring clean water pipeline flow rate in the semiconductor and pharmaceutical industries; no metal leaching, low pollution risk.
Installation display
Optional accessories of installation
| Graphic | Name | Specification |
| PVC Three Way Type |
DN15、DN20、DN25 DN32、DN40、DN50 DN65、DN80、DN100 |
|
| SS Three Way Type |
DN15、DN20 DN25、DN32 DN40 |
|
| SS-Welding Installation Parts |
DN40、DN50、DN65 DN80、DN100、DN125 DN150、DN200、DN250 DN300、DN350、DN400 DN450、DN500、DN600 |
|
| PVC-Welding Installation Parts |
DN40、DN50、DN65 DN80、DN100、DN125 DN150、DN200、DN250 DN300、DN350 |
|
| Flange Installation Parts |
DN50、DN65、DN80 DN100、DN125、DN150 DN200、DN250、DN300 DN400 |
|
| Gap Fame Installation Parts |
DN100、DN125、DN150 DN200、DN250、DN300 DN400、DN450 |