Small-Bore Turbine Flow Meter
OEM Skid and Laboratory Build
Accuracy +/- 0.5% of rate
Line sizes 1/8″ to 1/2″ (DN4 to DN15)
Integrated 3.6 V Li battery (V code)
- 304 stainless body standard
- Compact integrated transmitter
- 3.6 V lithium battery option
Small-bore turbine flow meters play a key role in OEM modular skid integration, analytical and laboratory liquid flow measurement, pilot-plant batch-reactor feed, and fuel-cell or electrolyser test-bench coolant loops. The LWGY covers Line sizes 1/8″ to 1/2″ (DN4 to DN15) with a compact integrated transmitter for direct skid-frame mounting. The 304 stainless body is standard; 316L upgrade for analytical chemistry; ceramic bearing for high-purity service.
Benefits
- Line sizes 1/8″ to 1/2″ (DN4 to DN15)
- Compact integrated transmitter for skid-frame mounting
- 3.6 V lithium battery V-code option
- Accuracy +/- 0.5% of rate
- 304 stainless standard, 316L analytical upgrade
- Ceramic bearing option for high-purity service
Typical applications
Four small-bore applications for compact OEM and lab measurement.
OEM modular skid integration
Water-treatment dosing, fuel-blending, lube-additive, sample-conditioning skids at DN4–DN10. Transmitter mounts on skid frame; V-code battery for commissioning.
Analytical and laboratory liquid flow measurement
Labs and USP utility loops on chromatography eluate, USP DI water, dilution feeds. 316L + ceramic bearing for high-purity service; compact transmitter mounts on bench.
Pilot-plant batch-reactor feed measurement
Pilot/R&D reactors on solvent feed, reagent dosing, recovered-solvent return. DN6–DN15 covers 0.06–8 m³/h; ±0.5% of rate across the range.
Fuel-cell and electrolyser test-bench coolant
Fuel-cell stack and PEM electrolyser test benches on coolant water/glycol for stack-cooling under transient cycling. Compact integrated mount; high-frequency pulse captures throttle steps.
Specifications
| Measurement principle | Velocity-type turbine with magnetic-pickup pulse output |
|---|---|
| Standard | JB/T9246-2016 turbine flow sensor |
| Line sizes | 1/8″ to 1/2″ (DN4 to DN15); small-bore OEM and lab range |
| Accuracy | +/- 0.5% of rate standard (custody class) |
| Repeatability | +/- 0.1% of rate |
| Flow rates | DN4: 0.04 to 0.4 m³/h · DN6: 0.06 to 0.6 m³/h · DN10: 0.15 to 1.5 m³/h · DN15: 0.4 to 8 m³/h |
| Pressure | Pressure up to 25 MPa (3,625 psi); ANSI 150 / 300 / 600 / 900 / 1500 / 2500 LB |
| Compatible media | Water (1.0 cSt) · deionized water · methanol (0.55 cSt) · ethanol (1.2 cSt) · acetone (0.3 cSt) · hydrocarbon solvents (0.5-1.5 cSt) · glycol-water heat-transfer blends (1.2-2.5 cSt) · lubricant additive blends (5-9 cSt warm); all clean liquids ≤ 10 cSt |
| Temperature Application | −20 to +120 °C (room-temperature type, standard) · −40 to +180 °C (high-temperature type) |
| Ambient temperature | −20 to +65 °C |
| Body material | 304 stainless standard for clean OEM skid and lab service · 316L upgrade for analytical chemistry and pharma utility · PP polypropylene custom for dilute corrosive aqueous chemistry on application review |
| Impeller | 2Cr13 martensitic stainless standard · 430F ferritic alternative |
| Bearing | Tungsten carbide standard · ceramic bearing option for high-purity lab and high-RPM service (recommended on USP-grade water and semiconductor UPW lab loops) |
| Output signals | Pulse 3-wire, 4-20 mA 2-wire / 4-wire, RS-485 Modbus RTU, HART |
| Power supply | 24 V DC standard, 3.6 V lithium battery V-code option (~0.3 mA standby, 5-year typical for off-grid OEM skid and lab installations) |
| Form factor | Compact integrated transmitter for direct skid-frame mounting; threaded G1/2 or G3/4 connection per bore |
| Transmission distance | Pulse 3-wire ≤ 300 m, 4-20 mA ≤ 1500 m (load ≤ 500 Ω), RS-485 / HART ≤ 1200 m |
| Ingress protection | IP65 / IP66 / IP67 |
| Approvals | JB/T9246-2016, EMC 2014/30/EU (Annex II), ISO 9001 calibration certificate with each meter |
Installation
Key install requirements. Full datasheet on request.
- Run skid line full; pump-discharge or pressurised-feed leg only
- Install fine-mesh strainer (100 µm on DN4 to DN10) upstream
- Maintain ≥ 10 D upstream and ≥ 5 D downstream straight pipe
- Mount horizontal or vertical with upward flow
- Inspect impeller every 6 months; every 3 months on lab solvent service
Frequently asked questions
Need help sizing a small-bore OEM skid or lab build?
Send bore, application, fluid/viscosity, pressure/temperature, power, target flow. Engineering returns model code + ship window in one business day.