PRODUCT EXPLORER
Will it replace mine?
FUJIMAC R2-80 · MADE IN JAPAN
An air pump supports the aerobic treatment process by supplying air to the wastewater. Here’s why we like the Japanese-made R2-80, and what to check before choosing it for your plant.
Haigh’s product preference · not an installation assessment
THE R2-80 Made in JapanWHY WE LIKE IT
Our preference reflects the details we value in a pump, with the supporting specifications and their limitations available to inspect.
The dimensions give you a useful starting point for checking space, including the outlet projection that can be easy to overlook.
Original source reviewed
50 Hz · 230–240 V supply context
Original source inspected. Scope limited to stated conditions.
Source & full detail ↗A published rating is useful when you can see exactly what it describes. The independent test gets its own place below.
Original source reviewed
150 mbar · 50 Hz · 230–240 V supply context
47/51 maps to 50/60 Hz in the Japan table; not 230/240 V. UK datasheet corroborates 47 W / 50 Hz.
Source & full detail ↗A useful maintenance plan covers routine filter care as well as the work that requires a trained service person.
Original source reviewed
Test conditions not stated
Source-supported maintenance guidance. Follow the full manual and use trained personnel where required.
Source & full detail ↗A LITTLE ROUTINE CARE
Keeping the filter clean is part of looking after the pump. The manual also explains when trained service personnel are needed.
Inspect and clean the air filter every 3 or 4 months, and replace every year. Dusty conditions may require more frequent attention.
Original source reviewed
Test conditions not stated
Source-supported maintenance guidance. Follow the full manual and use trained personnel where required.
Source & full detail ↗The UK manual calls for annual diaphragm/valve replacement. Diaphragm changes are for trained maintenance personnel; electrical work is for qualified electricians.
Original source reviewed
Test conditions not stated
Source-supported maintenance guidance. Follow the full manual and use trained personnel where required.
Source & full detail ↗QUIET IS SOMETHING YOU EXPERIENCE
What you hear in a garden depends on the installation and its surroundings. We want to show a real unit under stated operating conditions so you can judge more than a noise adjective.
Published noise value. Weighting, measurement distance and method are not stated.
Original source reviewed
50 Hz · 230–240 V supply context
Source says dB, not dB(A). Distance, acoustic weighting, measurement method and background are unspecified.
Source & full detail ↗A published sound level is one piece of evidence. Without a stated measurement method and matched operating conditions, it cannot predict the sound at your property or establish which pump will be quieter there.
Read the noise evidencePERFORMANCE UNDER PRESSURE
The useful comparison is airflow at the plant’s operating pressure: the duty point. A headline flow figure alone cannot establish suitability.
The pump must overcome the water depth above the diffuser plus resistance in the diffuser, airline and fittings, while maintaining the required airflow. In R2-80’s recorded manufacturer curve, airflow falls as pressure rises. A free-air figure describes flow without the installation’s backpressure; it is not the flow you can assume in service.
| Pressure | Airflow | Evidence |
|---|---|---|
| 50 mbar | 126 L/min | Approximate graph reading |
| 100 mbar | 100 L/min | Approximate graph reading |
| 150 mbar | 80 L/min | Published rating |
| 200 mbar | 50 L/min | Approximate graph reading |
| 250 mbar | 22 L/min | Approximate graph reading |
Only recorded points are shown; values between them are not estimated. No safe operating range is inferred.
Published rated point
50 Hz manufacturer curve. These points do not establish the duty your plant requires or approve a replacement; check the plant maker’s requirements and the pump’s operating limits.
Inspect the source ↗TWO NUMBERS. TWO CONDITIONS.
These figures answer different questions. They are not averaged, ranked or turned into a promise about your electricity bill.
150 mbar · 50 Hz · 230–240 V supply context
Original source reviewed
150 mbar · 50 Hz · 230–240 V supply context
47/51 maps to 50/60 Hz in the Japan table; not 230/240 V. UK datasheet corroborates 47 W / 50 Hz.
Source & full detail ↗100 mbar · frequency not stated · 240 V · hot steady state
Original source reviewed
100 mbar · frequency not stated · 240 V · hot steady state
Only the sample and test conditions in report 56932a. Frequency not stated; UKAS/ILAC marks are recorded, not a broader accreditation conclusion.
Source & full detail ↗The report displays UKAS Testing 0225 and ILAC MRA marks. That observation is not a broader accreditation-scope claim.
THE 80-CLASS PICTURE
We prefer FujiMAC. Other pumps deserve a fair account of their specifications, conditions and limitations.
These ratings describe different operating conditions, so this table is not an efficiency ranking or a replacement guide. Even the same stated airflow can be rated at a different pressure. Competitor figures remain workbook evidence pending primary-source review.
| Air pump | Rated airflow | Published power | Published noise |
|---|---|---|---|
| FujiMACR2-80Our preference | 80 L/min ↗150 mbar · 50 Hz · 230–240 V supply contextManufacturer specification | 47 W ↗150 mbar · 50 Hz · 230–240 V supply contextManufacturer specification | 36 dB ↗50 Hz · 230–240 V supply contextManufacturer specification |
| SECOHJDK-S-80 | 75 L/min ↗200 mbarManufacturer specification | 50 W ↗200 mbar · frequency not statedManufacturer specification | 38 dB(A) ↗50 Hz · 230 VManufacturer specification |
| HIBLOWHP-80 | 80 L/min ↗147 mbar · 50 Hz · 220–240 V supply contextManufacturer specification | 71 W ↗pressure not stated · 50 Hz · 220–240 V supply contextManufacturer specification | 36 dB(A) ↗50 Hz · 220–240 V supply contextManufacturer specification |
| Nitto Kohki / MEDOLA-80B | 80 L/min ↗150 mbar · 50 HzManufacturer specification | 86 W ↗pressure not stated · 50 HzManufacturer specification | Not capturedNo numeric manufacturer noise value in the current evidence map. |
| Charles AustenET80Current evidence as captured | 80 L/min ↗120 mbarManufacturer specification | 85 W ↗pressure not stated · frequency not statedManufacturer specification | 40 dB(A) ↗Test conditions not statedManufacturer specification |
| Charles AustenET80Historical evidence | 80 L/min ↗100 mbarManufacturer specification | 75 W ↗pressure not stated · frequency not statedManufacturer specification | 40 dB(A) ↗Test conditions not statedManufacturer specification |
46.6 W · FujiMAC R2-80
Domestic power meter; 80-class units; 2022
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
pressure not stated · frequency not stated
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗38.6 dB(A) · FujiMAC R2-80
Decibel X v9.2.2 on OnePlus 10 Pro; outdoor uncontrolled; minimum over multiple runs
Useful comparative observation, not an accredited acoustic measurement. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
Test conditions not stated
Useful comparative observation, not an accredited acoustic measurement. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗JDK range can use up to 30% less energy than preceding SLL/EL series depending on application
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Relative-to-predecessor claim; not a direct FujiMAC comparison. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗JDK range about 30% smaller overall than preceding SLL/EL series
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Relative-to-predecessor claim. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Long life expectancy from compact/simple motor-pump construction
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Qualitative claim. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗High efficiency from electromagnetic oscillation with practically no mechanical friction
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Mechanism description supports qualitative efficiency claim. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Low noise via soundproof casing and integrated muffler
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Qualitative claim; numeric BIBUS product data gives 38 dB(A). Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Low vibration via vibration-isolating rubber between motor and pump parts
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Qualitative claim. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Completely oil-free and practically pulsation-free airflow
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Published SECOH/BIBUS positioning. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Rainproof/weatherproof housing, but should not be exposed to direct sun, rain or snow
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Do not translate to an IP rating without a direct rated source. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗57.6 W · SECOH JDK80
Domestic power meter; 80-class units; 2022
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Source calls sample JDK80, not verified JDK-S-80; contextual record only. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
pressure not stated · frequency not stated
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Source calls sample JDK80, not verified JDK-S-80; contextual record only. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗43.3 dB(A) · SECOH JDK80
Decibel X v9.2.2 on OnePlus 10 Pro; outdoor uncontrolled; minimum over multiple runs
Useful comparative observation, not an accredited acoustic measurement. Source calls sample JDK80, not verified JDK-S-80; contextual record only. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
Test conditions not stated
Useful comparative observation, not an accredited acoustic measurement. Source calls sample JDK80, not verified JDK-S-80; contextual record only. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗Low noise; low power; dual insulation; dust trap filter
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
UK HIBLOW distributor product positioning. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Typical customers see more than 8-10 years service life when precautions and servicing are followed
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Distributor experience claim; not a guaranteed life. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Customers typically see more than 8-10 years with precautions and service instructions followed.
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Experience claim, not warranty or controlled lifetime test. Source uninspected; not a verified current commercial offer.
Source & full detail ↗UK distributor advertises 2-year warranty on HP-80.
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Check exact terms before customer-facing comparison. Source uninspected; not a verified current commercial offer.
Source & full detail ↗86.6 W · HIBLOW HP-80
Domestic power meter; 80-class units; 2022
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
pressure not stated · frequency not stated
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗43.8 dB(A) · HIBLOW HP-80
Decibel X v9.2.2 on OnePlus 10 Pro; outdoor uncontrolled; minimum over multiple runs
Useful comparative observation, not an accredited acoustic measurement. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
Test conditions not stated
Useful comparative observation, not an accredited acoustic measurement. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗Low sound level; easy maintenance; unrivalled performance and life time
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Record as manufacturer wording, not independently established fact. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗98.3 W · MEDO LA-80B
Domestic power meter; 80-class units; 2022
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
pressure not stated · frequency not stated
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗42.5 dB(A) · MEDO LA-80B
Decibel X v9.2.2 on OnePlus 10 Pro; outdoor uncontrolled; minimum over multiple runs
Useful comparative observation, not an accredited acoustic measurement. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
Test conditions not stated
Useful comparative observation, not an accredited acoustic measurement. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗Robust and compact construction; weatherproof / indoor and outdoor use
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Manufacturer wording. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗Green drive technology offers energy efficient motors / low power consumption
Manufacturer wording as captured in the workbook; not verified performance.Research compilation evidence · primary review pending
Test conditions not stated
Qualitative claim; benchmark separately. Research compilation transcription; source and edition not independently reviewed.
Source & full detail ↗56.3 W · Charles Austen ET80
Domestic power meter; 80-class units; 2022
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Sample ET80 revision unspecified; housed with historical research context, not asserted to match a manufacturing revision. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
pressure not stated · frequency not stated
Not controlled to a common stated back-pressure in article; use as comparative field observation, not accredited test. Sample ET80 revision unspecified; housed with historical research context, not asserted to match a manufacturing revision. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗47.7 dB(A) · Charles Austen ET80
Decibel X v9.2.2 on OnePlus 10 Pro; outdoor uncontrolled; minimum over multiple runs
Useful comparative observation, not an accredited acoustic measurement. Sample ET80 revision unspecified; housed with historical research context, not asserted to match a manufacturing revision. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.Research compilation evidence · primary review pending
Test conditions not stated
Useful comparative observation, not an accredited acoustic measurement. Sample ET80 revision unspecified; housed with historical research context, not asserted to match a manufacturing revision. Separate Airblow/MPC channel; not a Haigh or accredited-laboratory test.
Source & full detail ↗FOR THE CURIOUS
Manufacturer data, independent tests, comparative observations and our interpretation each have their own place.
Open the evidence notebook ↗We can help you gather the pump and plant details needed for a considered choice. The shop holds current commercial information; suitability depends on your installation.
View R2-80 in the shop ↗Ask FujiMAC support ↗BACK TO YOUR INSTALLATION
Use the model plate to identify the existing pump, then check the required airflow at operating pressure and the plant maker’s replacement requirements.