Current position > Product detail
『Flow Meter Avery Hardoll Parts: Bulk Fuel Transfer Positive Displacement Maintenance』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
Flow Meter Avery Hardoll Parts: Bulk Fuel Transfer and Positive Displacement Maintenance
Quick Answer: Silver Instruments supplies replacement flow meter parts for Avery Hardoll positive displacement meters used in bulk fuel transfer. The parts that wear most are seal kits, bearing plate sets, rotor assemblies, and register drive couplings. Send us the meter model, fuel type, flow range in liters per minute, and pipe size in DN to get a part number and a quote within 24 hours.
Bulk fuel terminals in Southeast Asia, the Middle East, and Africa still run many Avery Hardoll positive displacement meters. These meters handle diesel, gasoline, jet fuel, and light crude. The mechanical parts wear in a predictable order. Seals shrink and harden after long exposure to aromatic fuels. Rotor edges lose sharpness. Bearing plates develop axial play. We have seen this on customer sites many times.
Do not replace only the seal kit after a calibration failure. A fuel depot in Vietnam learned this the hard way. They replaced the seals on a DN80 meter and the register passed for two weeks. Then the reading jumped again because the rotor shaft had worn into the bearing plate. The full repair needed a new shaft, a new bearing plate set, and a rotor. Always inspect the rotor and bearing plates before you close the meter body.
Common Wear Parts for Avery Hardoll Bulk Fuel Meters
The main replacement parts in a positive displacement fuel meter are simple. There is a rotor assembly, a bearing plate set at each end of the shaft, a cover plate seal kit, and a register assembly. Some models also use a calibrator gearbox. Most repair orders from our customers include the seal kit, the bearing plates, and the rotor. Keep a spare register drive coupling if the meter drives a mechanical counter.
Flow range decides the part tolerances. A DN40 meter for diesel loading may run 30 to 300 liters per minute. A DN100 meter for ship bunkering may run 600 to 3000 liters per minute. Rotor clearance and bearing load are different across these sizes. You cannot fit a DN40 shaft into a DN80 meter. Always confirm the meter serial number and model code before ordering.
For a DN40 diesel loading meter, the small frame rotor and bearing plate set are common. For a DN80 bunker meter, use a heavy duty rotor assembly with a matched bearing set. The register drive coupling should be checked at the same time because worn teeth will cause the register to lag the actual flow.
In practice, the most common issue is a leaking cover plate. The second most common issue is a register that reads low or jumps. The third is a seized rotor after the meter sat dry for months. Most engineers skip this part: draining a positive displacement meter after a batch transfer reduces internal corrosion. Fuel residue traps moisture. That moisture pits the rotor and the bearing faces.
Maintenance Tasks That Keep Bulk Fuel Transfer Meters Accurate
Maintenance on these meters is not complicated. You need clean tools, a clean work bench, and the correct seal kit. Do not use ordinary grease. Use a light oil or a fuel-grade lubricant. Remove the meter from the line and drain it fully. Flush it with a small amount of clean diesel or kerosene. Open the cover plate carefully. Inspect the rotor edges and the bearing plate surface. Any scoring deeper than 0.1 mm on the bearing face will affect repeatability.
Replace the seals every time the cover plate comes off. A seal kit is cheap compared to a meter body. Reinstall the rotor with the correct end float. For most small bulk fuel meters, the end float is around 0.05 mm to 0.15 mm. Check the register drive coupling for wear. If the coupling teeth are rounded
Calibration after repair is not optional. Use a prover or a master meter. Run at least three flow rates: low, middle, and high. The error at low flow is often different from high flow. A meter that is within 0.5% at 300 liters per minute may be 1.5% off at 30 liters per minute. Adjust the calibrator if the meter has one. If it does not, you need a register with a calibration factor function.
Repair or Replace the Meter Body
A meter body can be repaired if the housing is not cracked and the threads are not damaged. The rotor bore wears slowly. If the bore is scored beyond the maximum diameter for that model, the meter body is scrap. Most sites do not have the bore gauge for this check. A machine shop can measure it in 20 minutes. Or send the meter body to us in Nanjing and we will inspect it before quoting parts.
For older Avery Hardoll meters, OEM parts supply is unstable. Some legacy parts have long lead times. We keep a range of compatible parts for common bulk fuel meter series. If a part is not in stock, we can machine a replacement from the original drawing or from a sample. Lead time is usually 2 to 4 weeks. That is often faster than waiting for legacy OEM stock from Europe.
Last year a customer in Malaysia asked us for a shaft and bearing plate set for a DN50 Avery Hardoll meter. They sent the serial number and two photos. We identified the part in one day. The quote was ready in 24 hours. The parts shipped by air freight and arrived in 6 days. The meter went back into service the same week.
How to Request the Right Parts from Silver Instruments
Do not send the words flow meter parts alone. That is not enough. We need five things: the meter brand and model, the meter size in DN, the fuel type, the flow range, and the serial number if possible. A photo of the nameplate or the damaged part helps a lot. With those details, we can check the drawing and give you a part number and a price.
Send your enquiry to Silver Instruments. Call us at +86-25-68650347. WhatsApp us at +86-25-52155837. WeChat as well at +86 15365082610. Give us the fuel type, meter size in DN, flow range, and the OEM part number if you have it. We will reply with a quotation and a lead time.
FAQ
Question: Can Silver Instruments supply genuine Avery Hardoll parts?
We supply compatible replacement parts for many Avery Hardoll positive displacement meters. We also help source OEM parts when the customer requires original branding. Send us the meter model and serial number first.
Question: What is the typical lead time for bulk fuel meter parts?
Stock seal kits and bearing plates ship within 3 to 5 working days. Machined rotor assemblies and shafts take 2 to 4 weeks. Air freight to Southeast Asia, the Middle East, and Africa is available.
Question: How do we know if the rotor needs replacement?
Check the rotor edge and bearing plate surface. Heavy scoring, pitting, or edge rounding means the rotor should be replaced. If the meter error at low flow is more than 1%, the rotor is often the cause.
Question: Can we recalibrate the meter on site after repair?
Yes. Use a prover or master meter. Run three flow rates. Adjust the calibrator or the register. If the error curve is not linear, check the rotor clearance and bearing end float first.
Question: Does Silver Instruments repair complete meter bodies?
Yes. You can ship the meter body to our Nanjing workshop. We will inspect, quote the repair, and return it. This is often cheaper than buying a new positive displacement meter for bulk fuel transfer.