Performance under Pressure

Hakko Air Pump Line Hakko HK40L




Hakko HK40L Linear Air Pump

Hakko HK40L Linear Air Pump

The Hakko HK-40L Linear air pump represents a top of the line Linear Air Compressor with 3 year warranty.

The Hakko Air Pump 40 will deliver a maximum of 70 Liters Per Minute.

40 watts used!!

Suitable for koi ponds up to 4,000 gallons.

This is a cast iron body style. It is a small unit with surprisingly high output. Ideal for water depths between 2 feet to 10 feet deep. Shut off depth is 14 feet deep. The Hakko air pumps are built to last with a very durable body and mechanics meaning years and years of everlasting quality airflow.

Very low noise 32/38 dB at 1 meter, low power consumption, Silent operation, Completely oil free, Overload protection with Auto off/on switch for overheat situations. Low power consumption. UL and CE listed for outdoor use.

110 Volt is standard. 220 volt is by special order.

The outlet fitting is approx 5/8" O.D. 6 foot power cord supplied.

No oil needed for lubrication making the Hakko easy to maintain.

Model / ItemHK-40Application:Features & Benefits:
Rated Voltage (V) AC 115 (AC 110/115/120 or
AC 220/230/240)
  • Aeration
  • Liquid agitation
  • Mamut pump for air lift
  • Aerobic treatment
  • High Efficiency
  • Simple Maintenance
  • Completely Oil-Free
  • Overload Protection
  • Silent Operation
  • Long Life Expectancy
Power Supply Frequency (Hz) 56 / 60
Normal Pressure Bar (psi) 0.13 (1.85psi)
Rated Performance lpm (cfm) 51
Power (W) 40
Noise Level (dB) 35 Maximum dimensions: Certificate:
Closed Pressure / Bar 0.38
Closed Pressure / psi 5.5 204 x 174 x 215 mm
  • CUL
  • CE
  • JET

Weight (kg) 5.4 / 11.9

The graph below shows water depth in feet.

Hakko HK40L Performance Curve

The graph above shows water depth in feet.

Shipping is free.

Item # Description Price Add to Cart
28018Hakko HK40L Linear Air Pump$198.00 Add to Cart
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Koi & Pond Tip of the Day
November 19th, 2017
If you live in area with lots of tree coverage, or if you have a tree that loses its leaves during the fall - then you should consider covering your pond with a pond net. A pond net is easy to install, and can be an effective way to keep your pond from filling up with leaves that just have to be cleaned out in the Spring.
Tips by » Koi Clubs USA

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