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Cox Instruments Turbine Flow Meter: High Accuracy Aviation Fuel Probes
Quick Answer: Cox Instruments turbine flow meter probes measure Jet A-1, JP-8, JP-5, and AVGAS in refueling trucks, fuel depots, and test stands. Silver Automation Instruments supplies these probes with pulse, 4-20 mA, or 4-20 mA HART output, PT100 temperature compensation, and calibration certificates. Send your fuel type, pipe size in DN, pressure in bar, temperature in deg C, and flow range for a specific quote.
In practice, aviation fuel metering is less forgiving than most water or diesel applications. A small shift in flow reading directly changes batch totals. Engineers and buyers in Southeast Asia, the Middle East, and Latin America specify turbine flow meters for aviation fuel because the pulse output is easy to totalize and the pressure drop is low. Cox Instruments turbine flow meter probes are a common choice for this service.
Why High Accuracy Aviation Fuel Probes Matter
Fuel loading arms and refueling trucks operate under commercial pressure. Every liter moves through a meter before it reaches the aircraft. Jet A-1 and JP-8 have low viscosity, often between 1 and 20 cP. This suits a turbine flow meter. The rotor speed tracks the fluid velocity across a known pipe area. The K factor in pulses per liter converts rotor speed to volume. A high accuracy aviation fuel probe needs a stable K factor across the working flow range.
Most engineers skip this part. The probe itself is only one part of the measurement loop. Temperature changes the fuel density and volume. That is why a PT100 sensor and a flow computer or totalizer with temperature compensation are often added. Silver Instruments supplies the turbine meter, PT100, and paperless recorders in one package. The goal is not just a meter. The goal is a complete measurement point that gives the batch volume without manual correction.
Typical Cox Instruments Turbine Flow Meter Parameters
Common probe sizes for aviation fuel range from DN10 to DN50. Flow ranges vary by size. A DN25 probe often covers 10 to 200 L/min for Jet A-1. A DN40 probe covers 20 to 400 L/min. A DN10 probe works for test benches and small dosing skids with flow from 1 to 30 L/min. Standard accuracy is 0.5 percent of reading. Calibrated units can reach 0.15 percent of reading over a defined range.
Output options include pulse, 4-20 mA, and 4-20 mA HART. RS485 Modbus is available on request. Pressure ratings are typically 40 bar for standard units and 100 bar for high pressure refueling skids. Wetted materials are stainless steel and aluminum in some models. Seals and bearings are selected for Jet A-1, JP-8, and AVGAS. We avoid marketing language here. The material selection depends on the fuel, the pressure, and the temperature.
Installation Notes for Aviation Fuel Probes
Install the probe with straight pipe upstream and downstream. Use at least 10D upstream and 5D downstream. Install a strainer before the meter. Aviation fuel systems often contain small particles from hoses and fittings. A 100 micron strainer protects the rotor and bearings. Mount the meter after the air eliminator on refueling trucks. Bubbles in the fuel cause the rotor to overspeed. That produces a high reading and an inaccurate batch total.
Do not install the meter near a partially open valve or a pump d
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Recommended Configurations for Fuel Operations
For a refueling truck, a DN25 turbine flow meter with pulse output, 0.5 percent accuracy, and a local register works well. For a depot loading arm, a DN40 or DN50 probe with 4-20 mA HART and ATEX Zone 1 approval fits the site classification. For a calibration bench, a DN10 probe with 0.15 percent reading accuracy and a totalizer gives the best repeatability.
A fuel depot in Malaysia runs DN40 probes on Jet A-1 loading arms. The flow range is 20 to 400 L/min. The K factor is around 220 pulses per liter. The probes are paired with paperless recorders from Silver Instruments. The site team checks batch totals every day. They compare the turbine total against the tank level. The error stays under 0.2 percent.
Why Source Through Silver Automation Instruments
Silver Automation Instruments is based in Nanjing, China. We supply industrial flow meters and process instruments to customers in Southeast Asia, Oceania, Latin America, Africa, and the Middle East. We configure Cox Instruments turbine flow meters for aviation fuel service. We also supply compatible totalizers, PT100 sensors, and paperless recorders. We provide calibration certificates, test reports, and export packing.
You can reach our Nanjing office by phone, WhatsApp, or WeChat. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610. Send us your fuel type, pressure in bar, temperature in deg C, pipe size in DN, and flow range in L/min or kg/h. We will reply with model, price, and delivery time.
FAQ: Cox Instruments Turbine Flow Meter for Aviation Fuel
What fuel types can a Cox Instruments turbine flow meter measure?
Jet A-1, JP-8, JP-5, and AVGAS are the main fuels. Clean kerosene and similar fuels with viscosity from 1 to 20 cP also work. For fuels above 20 cP, contact Silver Instruments for a different meter type.
What output signals are available for aviation fuel probes?
Pulse, 4-20 mA, and 4-20 mA HART are standard options. RS485 Modbus is available on request. The output depends on the totalizer, PLC, or batch controller on site.
What accuracy can I expect from a high accuracy aviation fuel probe?
Standard accuracy is 0.5 percent of reading. Multi-point calibration can bring the meter to 0.15 percent of reading over a defined flow range. Calibration conditions include the actual fuel viscosity and line temperature.
Do these probes have ATEX or IECEx approval?
Configurations with ATEX Zone 1 or Zone 2 are available for fuel depots and loading arms. We need the hazardous area classification from your site. We will match the approval to the installation.
What information do you need for a quote?
Send your fuel type, flow range, pipe size in DN, operating pressure in bar, operating temperature in deg C, output signal, and approval requirement. We will reply with the recommended model and price.