WKGY Liquid Turbine Flow Meter DN4–DN200
- Liquid turbine flowmeter, DN4~DN200; flow from 0.04-0.25m³/h (DN4) up to 80-800m³/h (DN200)
- Accuracy ±0.5%R / ±1.0%R; short-term repeatability 0.05%-0.2%
- Variants: WKGY-N pulse output, WKGY-A 4-20mA 2-wire, WKGY-B battery-powered local display; RS485 / HART options
- 304 / 316(L) stainless body; medium temperature -20~+120℃
- Threaded ≤DN40 up to 6.3Mpa; flanged DN50-DN200 up to 2.5Mpa
- Explosion-proof option ExdIIBT6; signal transmission up to 1000m
Tell us your medium, range and process connection — we reply within 24 hours.
Factory-direct from WELK Meters
- Small MOQ Welcome
- OEM / ODM Support
- Reply Within 24 Hours
Overview
The WKGY liquid turbine flow meter measures the flow of clean, low-viscosity liquids in pipe sizes DN4~DN200, covering flow ranges from 0.04-0.25m³/h (DN4) up to 80-800m³/h (DN200). Standard accuracy is ±0.5%R or ±1.0%R with short-term repeatability of 0.05%-0.2%, and output options span raw pulse, 4-20mA 2-wire and battery-powered local display.
The flow body is machined from 304 or 316(L) stainless steel. Meters up to DN40 use threaded process connections rated to a maximum of 6.3Mpa (as printed), while DN50-DN200 meters are flanged and rated to a maximum of 2.5Mpa (as printed). The meter handles medium temperatures of -20~+120℃ and ambient temperatures of -20~+55℃. Pulse-output versions run from +5-24VDC at ≤10mA and can transmit signals up to 1000m to the receiving instrument. An explosion-proof option ExdIIBT6 is available for hazardous areas, and RS485 and HART communication can be added.
Features
- Accuracy ±0.5%R / ±1.0%R with 0.05%-0.2% short-term repeatability
- Three electronics variants for direct PLC input, 2-wire loops or stand-alone display
- Compact 304 / 316(L) stainless construction; dimension table covers WKGY-4 through WKGY-100
- Low power: +5-24VDC supply, current ≤10mA
- Long signal transmission distance — up to 1000m
- Explosion-proof option ExdIIBT6; optional RS485 and HART
Specifications
| Item | Value |
|---|---|
| Model / series | WKGY |
| Nominal diameter | DN4~DN200 |
| Flow range | 0.04-0.25m³/h (DN4) … 80-800m³/h (DN200), per sizing table |
| Accuracy | ±0.5%R / ±1.0%R |
| Short-term repeatability | 0.05%-0.2% |
| Process connection | Threaded ≤DN40 (max 6.3Mpa); flanged DN50-DN200 (max 2.5Mpa) |
| Body material | 304 / 316(L) stainless steel |
| Medium temperature | -20~+120℃ |
| Ambient temperature | -20~+55℃ |
| Power supply | +5-24VDC, current ≤10mA |
| Signal transmission | Up to 1000m |
| Explosion-proof option | ExdIIBT6 |
Variant selection
| Variant | Output / function |
|---|---|
| WKGY-N | Basic sensor with pulse output |
| WKGY-A | 4-20mA two-wire transmitter output |
| WKGY-B | Battery-powered with local display |
| Options | RS485, HART communication |
Applications
- Clean, low-viscosity liquid metering in process lines
- Batching and blending where high repeatability (0.05%-0.2%) matters
- Small-bore dosing from DN4 up to main lines at DN200
- Hazardous-area installations with the ExdIIBT6 option
FAQ
Which WKGY variant should I choose?
Choose WKGY-N for a raw pulse signal into a PLC or totalizer, WKGY-A for a 4-20mA two-wire loop, and WKGY-B for stand-alone battery-powered operation with local display. RS485 and HART are available as options.
What accuracy does the WKGY turbine flow meter achieve?
Standard accuracy classes are ±0.5%R and ±1.0%R of reading, with short-term repeatability between 0.05% and 0.2% — well suited to batching and custody-style applications on clean liquids.
How do I get a quote?
Contact us with your medium, pipe size, flow range and required output; we respond within 24 hours with a model selection and quotation.
