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Gasoline Flow Meters: Spark-Proof Volumetric Transfer Vanes for Fuel Dispensing

Quick Answer: A spark-proof volumetric transfer vane flow meter measures gasoline or diesel volume in fuel dispensing with no ignition risk. Silver Automation Instruments is a flow meter manufacturer and supplier for fuel terminals and retail pumps. Send pipe size DN, flow range, pressure rating, and temperature for a specific quote.

Fuel terminals in Southeast Asia and the Middle East often use positive displacement vane meters for gasoline transfer because the meter gives a direct volume reading. The design does not need flow conditioning. In practice, operators choose a vane meter with Ex d IIC T6 or Ex ia certification for Zone 1 areas. Silver Automation Instruments has supplied vane meters for fuel skids in Vietnam, the Philippines, and Nigeria.

How Does a Spark-Proof Vane Flow Meter Work?

The meter body contains a rotor with sliding vanes. Each vane creates a small measuring chamber. Gasoline fills each chamber and rotates the rotor. One full rotation equals a fixed volume. A mechanical register or a pulse sensor counts the rotor turns. The signal can go to a local totalizer or to a PLC via 4-20 mA HART.

Because the chambers are fixed, the output is volumetric. Temperature changes affect gasoline volume, so you may need PT100 temperature compensation if you want net volume at 15 °C. Most engineers skip this part for small retail pumps. But custody transfer points usually add a flow computer with temperature correction.

Where Do Volumetric Transfer Vanes Fit in Fuel Dispensing?

Common installation points include truck loading racks, fuel terminal transfer lines, aviation refueling carts, and diesel generator day tanks. For retail gasoline dispensers, a vane meter with a mechanical counter is still used in many markets. For a fuel terminal with flammable vapor, the meter must be spark-proof. ATEX Zone 1 and IECEx certificates matter for procurement teams in the Middle East and Africa.

One distributor in Indonesia asked us for a gasoline meter with a 4-20 mA HART output and a local reset batch totalizer. The pipeline was DN40 and the flow range was 40 L/min to 400 L/min. We supplied a vane meter with an aluminum body and stainless steel internals. The customer also added an air eliminator upstream.

What Parameters Should You Send Before Buying?

To avoid pricing delays, send us your process data. We need the fluid, flow range in L/min or m3/h, pipe size DN, pressure in bar, temperature in °C, and required output. Also tell us if the location is Zone 1 or Zone 2. If possible, include viscosity in cP. Gasoline viscosity is low, near 0.6 cP at 20 °C. Diesel is higher, around 3 cP to 5 cP at 20 °C. If mass flow in kg/h is required, we can pair the meter with a density or temperature compensation module.

Send these details to Silver Automation Instruments. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610. You can also check technical drawings at flow-meter.com.au.

Recommended Silver Automation Instruments Models for Gasoline and Diesel

For gasoline and light diesel, we recommend the Silver Automation Instruments SVA vane meter series. The SVA-DN25 suits flow rates from 10 L/min to 120 L/min. The SVA-DN40 covers 40 L/min to 400 L/min. Both meters can be ordered with pulse output, 4-20 mA HART, or mechanical register. The flameproof version is Ex d IIC T6 and fits Zone 1. For diesel with higher viscosity, an oval gear flow meter is another option. It has similar accuracy and a strong local totalizer.

We do not overcomplicate meter selection. If your fuel line has a flow range inside one of these bands, a standard vane meter works. If you need batching with a preset valve, we can supply a complete fuel dispensing skid with a meter, valve, and flow controller.<