Threaded Turbine Flowmeter

High-accuracy liquid flow measurement in small pipelines, compact threaded design.

Approved by：CE, SIL-3, ATEX Explosion-proof certification

The threaded turbine flowmeter is a small, lightweight flow sensor for clean, low-viscosity liquids in closed pipes. It uses the turbine principle — the liquid drives the rotor, and the meter converts the rotor speed into a pulse or current signal that is proportional to the flow. Thanks to its stainless-steel body, high-precision bearings, and good repeatability, it is well suited for batching, dosing, energy-saving monitoring, and trade measurement.
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  • Nominal Sizes: DN4~DN40

  • Thread Type: Standard G thread (other thread types customizable)

  • Accuracy Grades: ±1%R standard; ±0.5%R and ±0.2%R optional

  • Repeatability: 0.05%–0.2%

  • Range Ratio: 1:10 / 1:15 / 1:20 (depending on model)

  • Medium Temperature: −20 °C to +120 °C (depending on model)

  • Ambient Temperature: −10 °C to +55 °C (display) / up to +60 °C (transmitter)

  • Pressure Rating: Up to 6.3 MPa (higher ratings available by request)

  • Digital Communication: RS-485 (Modbus RTU), HART (optional)

  • Explosion-Proof Grade: Exd IIB T6 or Exia II CT4 (depending on configuration)

  • Ingress Protection: IP65 standard; higher available on request

  • Standard Compliance: JB/T 9246-1999 (Turbine Flow Sensor Standard)

  • High measuring accuracy: Provides standard accuracy of ±1% (up to ±0.5% or ±0.2% optional), ensuring consistent measurement in demanding industrial processes.

  • Excellent repeatability: Stable readings (0.05–0.2% repeatability), so small changes in flow can be seen clearly.

  • Wide rangeability: Range ratio up to 1:10 or higher (model-dependent), so one meter can cover normal and low flows.

  • Compact Threaded Design: Lightweight, small body with threaded connection enables easy installation in confined or modular systems.

  • Fast Response and High Signal Resolution: High-frequency output (3–4 kHz typical) ensures responsive measurement and excellent signal definition.

  • Wide Compatibility with Liquids: Suitable for clean, particle-free liquids with low viscosity, including water, alcohol, fuel, and solvents.

  • Multi-Signal Output Options: Choose from pulse, 4–20 mA, or digital RS-485/HART communication for flexible system integration.

  • Power Flexibility: Operates with internal lithium battery for standalone display or 24 VDC external power for continuous signal transmission.

  • Reliable Data Retention – Intelligent LCD models store totalized data for years even after power loss.

  • High-pressure capable: Threaded bodies are available for higher pressures, so you don’t have to tap the flow body.

  • Explosion-proof versions: For hazardous areas, explosion-proof models can be selected to meet plant safety needs.

  • Low maintenance: Simple internal structure makes cleaning and periodic inspection straightforward.

  • Intelligent integrated version with local LCD and battery

  • 24 VDC transmitter version with 4–20 mA + pulse

  • RS-485 / Modbus communication module

  • Explosion-proof housing

  • Upstream strainer and flow straightener

  • Mating threaded unions / adapters

  • Measurement of clean water, demineralized water, or cooling water in small pipelines

  • Light oil, diesel, aviation kerosene, and other low-viscosity petroleum products

  • Alcohols and low-viscosity organic liquids in chemical plants

  • Dosing / batching systems on skid equipment

  • Boiler make-up lines and HVAC water branches

  • Industrial equipment with built-in threaded process connections

  • Flow monitoring in small OEM machines and test benches

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