Chemical Liquid Turbine Flow Meter
Non-Conductive Solvent and Batch Build
Accuracy +/- 0.5% of rate
Line sizes 1/2″ to 6″ (DN15 to DN150)
For chemicals EMF cannot measure
- 316L body, duplex stainless impeller
- PP polypropylene custom for corrosive aqueous
- CNEX Ex d zone-1 standard
Chemical liquid turbines meter non-conductive solvents, batch dosing, pharma-intermediate blending, and specialty chemistry transfer. LWGY covers DN15–DN150 for acetone, methanol, ethanol, toluene, xylene, light esters/ethers; chemicals EMF cannot read. 316L body + duplex impeller handle chloride/sulfide carry-over; PP custom for dilute corrosive aqueous. CNEX Ex d IIC T6 Gb ships standard for Class IB/IC service.
Benefits
- Measures non-conductive solvents below EMF 5 µS/cm floor
- Accuracy +/- 0.5% of rate
- Pulse output for batch-dosing controllers
- CNEX Ex d IIC T6 Gb standard for Class IB / IC service
- 316L body, duplex impeller, PP polypropylene custom
- Line sizes 1/2″ to 6″ (DN15 to DN150)
Typical applications
Four chemical-service applications where LWGY turbine handles the non-conductive chemicals EMF cannot measure.
Pharmaceutical intermediates blending
API precursors and recovered methanol/ethanol sit below the EMF floor. 316L body, ±0.5% rate for batch tolerance, Ex d for Class IB reactor zones.
Solvent recovery and distillation column feed
Tracks recovered acetone, methanol, ethanol, and light ester returns. Pulse output feeds column-controller reflux setpoint; duplex impeller takes chloride/sulfide carry-over.
Specialty chemistry batch reactors
Paint, coating, adhesive, sealant resin recipes with xylene/toluene/hydrocarbon solvent. 316L handles aromatics without leaching; ±0.5% of rate across the range.
Hydrocarbon batch transfer terminal-to-skid
DN65–DN150 terminal-to-skid hydrocarbon transfer for truck/rail-car offload. Pulse output drives loading-rack controller batch-end shutoff; ±0.5% rate for invoice-grade billing.
Specifications
| Measurement principle | Velocity-type turbine with magnetic-pickup pulse output |
|---|---|
| Standard | JB/T9246-2016 turbine flow sensor |
| Line sizes | 1/2″ to 6″ (DN15 to DN150) |
| Accuracy | +/- 0.5% of rate standard (custody class) |
| Repeatability | +/- 0.1% of rate |
| Pressure | Pressure up to 25 MPa (3,625 psi); ANSI 150 / 300 / 600 / 900 / 1500 / 2500 LB |
| Conductivity floor | None; designed for non-conductive solvents that EMF cannot measure |
| Compatible media | Acetone (0.3 cSt) · methanol (0.55 cSt) · ethanol (1.2 cSt) · toluene (0.55 cSt) · xylene (0.65 cSt) · light esters · light ethers · glycol-water mix warm (5–8 cSt) · light hydrocarbons ≤ 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 | 316L stainless standard · PP polypropylene custom for dilute corrosive aqueous chemistry (HCl < 30 %, H₂SO₄ < 60 %, NaOH, NaOCl, FeCl₃) at T ≤ 80 °C and P ≤ 0.6 MPa · duplex / Hastelloy C / Tantalum on application review |
| Impeller | Duplex stainless standard for chloride / sulfide carry-over · 2Cr13 alternative for hydrocarbon-only service · PP polypropylene matched to PP body for dilute-acid / hypochlorite service · ceramic high-RPM option |
| Bearing | Tungsten carbide standard, ceramic high-RPM option |
| Output signals | Pulse 3-wire, 4-20 mA 2-wire / 4-wire, RS-485 Modbus RTU, HART, GPRS / IoT |
| Power supply | 24 V DC standard, 3.6 V lithium battery option for off-grid skid telemetry |
| 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 |
| Hazardous area | CNEX Ex d IIC T6 Gb (flameproof, Zone 1); mandatory for Class IB / IC flammable solvent, ships standard |
| 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 pipe full at the meter; pressurised reactor feed leg only
- Install upstream strainer; slow-fill at first commissioning
- Maintain ≥ 10 D upstream and ≥ 5 D downstream straight pipe
- Class IB / IC service requires Ex d cable glands and flameproof junction box
- Inspect impeller every 6 months; check K-factor against calibration certificate
Frequently asked questions
Need help sizing a chemical batch-dosing build?
Send line size, chemical, viscosity, conductivity, pressure, and target flow. Engineering returns model code + ship window within one business day.