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Quick Answer: Tokico rotary vane flowmeter units meter fuel oil, diesel, gasoline, jet fuel, and heavy petroleum products by positive displacement. Silver Automation Instruments supplies compatible heavy industrial rotary vane fuel and petroleum counters with mechanical registers, pulse outputs, or 4 to 20 mA HART signals. Send your flow range, pipe size DN, fuel type, and pressure to get a quote within 24 hours.
Tokico rotary vane units belong to the positive displacement flowmeter family. A rotor with sliding vanes sits inside a measuring chamber. Each rotation traps a fixed volume of fuel. The counter totalizes that volume. Most engineers specify these units for batch loading, custody transfer, fuel consumption checks, or generator fuel monitoring.
Common sizes cover DN25, DN40, DN50, DN80, and DN100 pipe connections. Flow rates span 6 to 600 liters per minute depending on the meter size. Accuracy for diesel and gasoline is normally plus or minus 0.2 percent. Heavy fuel oil at higher viscosity may run plus or minus 0.5 percent. Repeatability is usually within 0.05 percent.
We have seen these counters on many customer sites in Southeast Asia, the Middle East, and Australia. A fuel depot in Surabaya uses rotary vane counters on diesel loading racks. A marine fuel supplier in Singapore meters bunker fuel transfers. A mining contractor in Western Australia counts diesel consumption for gensets and haul trucks. A lubricant blender in Jebel Ali batches base oils through DN50 rotary vane units.
In practice, the installation is simple. Keep the meter full of liquid. Mount a strainer upstream. Add an air eliminator if the fuel aerates. For heavy fuel oil, insulate the lines or keep the temperature above the pour point. Use a water separator on diesel tanks where condensation is common.
Silver Automation Instruments is a flow meter manufacturer and supplier. We provide heavy industrial rotary vane fuel and petroleum counters that match common Tokico mounting dimensions and process connections. The product range includes aluminum bodies for light fuels and cast iron or steel bodies for heavy oils. Seals are available in Viton or PTFE. Bearings can be selected for gasoline, diesel, biodiesel, kerosene, or heavy residual fuel oil.
Output options include a mechanical register, a pulse transmitter, or a 4 to 20 mA HART signal. For hazardous areas, we can supply units rated for ATEX Zone 1 or Zone 2. We do not sell OEM Tokico branded meters as a distributor. We supply compatible replacements with the same flange patterns and similar performance.
Here is the practical point. If your Tokico meter is obsolete or the delivery time is too long, a compatible Silver Instruments unit can often drop into the same pipe run without changing the flanges or the batch controller.
Most engineers skip this part and later face delays. Send these details in the first inquiry. Fuel type matters because viscosity and lubrication change the meter selection. Diesel, gasoline, aviation fuel, heavy fuel oil, and crude oil all behave differently. State the viscosity in centipoise or centistokes if you know it.
A typical inquiry should include pipe size DN, flow range in liters per minute or cubic meters per hour, operating pressure in bar, operating temperature in degrees Celsius, process connection type, and required output. Also state if the meter needs a mechanical totalizer, pulse output, or 4 to 20 mA HART output.
Last year a customer in Vietnam needed twelve rotary vane fuel counters for a diesel loading skid. His data was simple: DN50, 2 inch BSP female threads, 0 to 200 liters per minute, 10 bar pressure, aluminum body, pulse output. The order shipped in three weeks.
A lot of plants lose the manual but still have the meter in the pipe. Take a clear photo of the nameplate. Measure the flange or thread size. Note the register type and output connector. Note the fuel type and operating pressure. Send these details to Silver Automation Instruments. Our engineers will cross-check the mounting dimensions and select a compatible rotary vane counter.
Do not guess the model from memory. Many Tokico units look the same but have different vane materials and seal compounds. A wrong seal in diesel can swell or leak. A wrong vane in heavy fuel oil can jam.
Install the meter in a straight pipe run. Keep at least five pipe diameters upstream and three downstream. Use a Y strainer before the meter to catch weld slag and scale. For fuels that can vaporize, use an air eliminator. Do not use the meter on two-phase flow.
Calibration for light fuels is normally done on a master meter or a prover. We can provide calibration certificates in liters, gallons, or cubic meters. For heavy oils, state the viscosity in centipoise or centistokes. We set the clearance accordingly. Mechanical registers need a calibration seal after testing. Pulse transmitters need a K-factor programmed into the flow computer or PLC.
If the meter reads low, check for air in the fuel. A partially filled pipe or a leaking suction line will undercount. If the meter reads high, inspect the calibration and the register gearing. If the counter stalls, stop the pump and check for debris in the vanes. A blocked strainer can cause cavitation and damage the chamber.
In practice, most repeat failures come from dirty fuel or water. Install a good filter or water separator. Drain the filter housing weekly. For diesel and gasoline, inspect the vanes every 12 months. For heavy fuel oil, check every 6 months. Keep a spare set of vanes and seals in the maintenance store.
We ship rotary vane fuel and petroleum counters to Thailand, Indonesia, Malaysia, Vietnam, the Philippines, Australia, New Zealand, Saudi Arabia, the UAE, Chile, Peru, Nigeria, and Kenya. We pack each meter in a plywood box with silica gel. Express freight takes 3 to 7 days by air. Sea freight takes 2 to 5 weeks depending on the destination port.
All shipments include a calibration certificate, a material certificate, and a simple installation drawing. For hazardous area units, we include the ATEX certificate or the IECEx certificate. We do not use loose filler in the box because paper dust can enter the register.
Can Silver Automation Instruments repair a Tokico rotary vane flowmeter? Yes. We can inspect and repair many rotary vane fuel counters. Send the nameplate photo and the fault description. Our service team checks the measuring chamber, vanes, bearings, and register.
What pipe sizes do you supply for fuel and petroleum counters? We supply DN25, DN40, DN50, DN80, and DN100 as standard. Larger sizes are available for special projects. Flange connections follow ANSI, JIS, or DIN standards.
Do you offer pulse output or HART on rotary vane counters? Yes. We can fit a reed switch pulse transmitter, a hall effect sensor, or a 4 to 20 mA HART converter. The output connects to a flow computer, PLC, or batch controller.
Can these meters handle heavy fuel oil? Yes. Select a cast iron or steel body with hardened vanes and high temperature seals. Keep the fuel temperature above the pour point and provide heat tracing if needed. State the viscosity in centipoise so we can check the clearance.
What is the delivery time for a compatible Tokico unit? Standard DN25 to DN50 aluminum fuel counters ship in 7 to 15 days. Cast iron heavy fuel models take 15 to 25 days. Custom flanges or HART converters add about one week.
Send your fuel type, pipe size DN, flow range in liters per minute, pressure in bar, temperature in degrees Celsius, and required output. Tel: +86-25-68650347. WhatsApp: +86-25-52155837. WeChat: +86 15365082610. Our engineers will return a quote within 24 hours.
