Truflo TK3M Series Paddle Wheel Flow Meter Sensor

Truflo TK3M

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The TK3M Paddle Wheel Flow Meter by Icon Process Controls is a high-precision industrial flow sensor for liquid measurement. Featuring a 316SS body, 4-20mA output, and a 360° rotatable LED display, it delivers ±0.5% accuracy for applications like wastewater monitoring.

Icon Process Controls TK3M Paddle Wheel Flow Meter with LED display for industrial liquid flow measurement

Manufacturer: Icon Process Controls

Product Type: In-Line Paddle Wheel Flow Meter Sensor

Applications: Liquid flow measurement, filtration systems, water and wastewater monitoring, industrial liquid distribution, process skids, liquid consumption tracking, discharge verification

Key Features:

  • High-precision TK3M Paddle Wheel Flow Meter for industrial liquid monitoring

  • Exceptional accuracy of ±0.5%, leading the industry standard

  • 316 stainless steel body for durability in harsh environments

  • Tefzel® paddle wheel with zirconium ceramic rotor and bushings

  • Bright LED display with 360° rotation, showing flow rate and total

  • 4-20mA output for seamless integration with control systems

  • Life-time warranty on the paddle assembly for reliability

Technical Specifications
Operating Range0.3 to 3 ft/s (0.1 to 10 m/s)
Pipe Size Range3/8″ to 12″ (DN10 to DN300)
Linearity±0.5% of FS @ 25°C (77°F)
Repeatability±0.05% of FS @ 25°C (77°F)
Sensor Body MaterialsPVC (Dark), PP (Pigmented), PVDF (Natural), 316SS
RotorPVDF, ECTFE, 316SS
Rotor Pin, BushingsZirconium Ceramic (ZrO2)
Sensor SealETFE Tefzel®
Frequency Range40 Hz per ft/s nominal | 15 Hz per ft/s nominal
Supply Voltage5 to 24 VDC unregulated | 20 mA @ 6 to 26 VDC
Supply Current≤15 mA @ 3.15 to 6 VDC
Max Temp / Pressure PVC: 180 PSI @ 68°F | 40 PSI @ 140°F
PP: 150 PSI @ 68°F | 100 PSI @ 140°F
PVDF: 200 PSI @ 68°F | 80 PSI @ 300°F
316SS: 290 PSI @ 68°F | 180 PSI @ 300°F
Operating Temperature PVC: 32°F to 140°F (0°C to 60°C)
PP: -4°F to 176°F (-20°C to 80°C)
PVDF: -40°F to 300°F (-40°C to 150°C)
316SS: -40°F to 300°F (-40°C to 150°C)
OutputsNPN Pulse | RS485
DisplayLED Flow Rate + Flow Totalizer
Standards and ApprovalsUL Rec., CE, RoHS Compliant
PVC – Model Selection
Size End Connections Part Number
¾″Sch 80 SocTKM-15-P
1″Sch 80 SocTKM-20-P
1¼″Sch 80 SocTKM-25-P
1½″Sch 80 SocTKM-40-P
2″Sch 80 SocTKM-50-P
3″FlangedTKM-80-P
4″FlangedTKM-100-P
PP – Model Selection
Size End Connections Part Number
½″NPTTKM-15-PP
¾″NPTTKM-20-PP
1″NPTTKM-25-PP
1¼″NPTTKM-40-PP
2″NPTTKM-50-PP
3″FlangedTKM-80-PP
4″FlangedTKM-100-PP
PVDF – Model Selection
Size End Connections Part Number
½″NPTTKM-15-PF
¾″NPTTKM-20-PF
1″NPTTKM-25-PF
1½″NPTTKM-40-PF
2″NPTTKM-50-PF
316 SS – Model Selection
Size End Connections Part Number
½″NPTTKM-08-SS
¾″NPTTKM-10-SS
1″NPTTKM-15-SS
1¼″NPTTKM-25-SS
1½″NPTTKM-40-SS
2″NPTTKM-50-SS
3″NPTTKM-80-SS
4″NPTTKM-100-SS