Phone: +021 911 5835; C: 0823903989; T: 0861428716

Diaphragm blowers for small tanks and bins and medium depths

Between the low wattage fish tank sized blowers and side channel blowers for larger aeration requirements are diaphragm type blowers that deliver a suitable pressure and air volume for most small tank operations. We supply the Hailea ACO range and the Waterfall LP ranges, allowing for a variety of air delivery rates.

LP100 blower

The 100 watt LP100 is an efficient blower for water depths up to 3m and air flow rates between 80 and 120 liters per minute depending on the water depth.

Waterfall & Resun air pumps like the LP100 quietly deliver a maximum high volume  air output of 8400 L/hr (140 litre per minute), which is suitable for  large fish and koi ponds and industrial applications like aerobic sewage treatment. It should be housed in a low dust environment, but can withstand light rain and water sprinkling. Dust will prematurely wear the rubber valves & diaphragms and affect airstones, blocking them from the inside.

Installation hint: To increase the life of the rubber diaphragms, the unit must have back pressure.

Also used for: Waste water treatment aeration, deep water septic tank  aeration, natural swimming pond aeration, aquaculture pond aeration,  commercial and industrial water aeration, bubble baths. It can also be used for air lift water pumping & aeration, aquaponics, hydroponics and aquaculture.

Get more information on this Waterfall/Resun diaphragm blower range.


    Electromagmetic linear diaphragm technology
    Low noise. Decibel levels measured in a quiet room using A-frequency weighting with medium back pressure loading on the pump:
    44dB(A)+/- at 3m from air pump, 55dB(A)+/- at 500mm from air pump. A quite room ambient noise level is 30dB(A)+/-
    Cast aluminium body
    Voltage/Wattage: 240V / 100W
    Automatic thermal cut-out overload protection
    Cable length: 1.5m
    Max pressure: 0.042 mPa / 0.42 bar / 420 mbar / 6.1 psi
    Max air output: 8400L/hr (140 Litres/minute)
    Air pump outlet diameter: 20mm
    Must be set-up above the water level
    Important: Rated IPX4 (meaning - Should be placed in a low dust environment but will tolerate rain and light sprinkling)
    Maximum water depth for placed airstones or air diffuser: 4.0m
    Supplied with a plastic 33 outlet x 46mm barbed manifold to suit 4mm - 8mm silicon air line
    Air Pump dimensions: 270mm(L)x200mm(W)x230mm(H)
    Weight: Air Pump, 6.6kg. Cartoned pump: 7.31kg

LP100 diaphragm blower

Hailea ACO diaphragm blower range

The blower case is made of aluminium (ZL-102), so does not corrode easily). It has ribs or vanes designed for efficient heat dissipation during use.

The blower is driven by an electrical magnetic motor that runs in a straight line reciprocal motion to work the diaphragm and produce air aith a significant pressure capacity, ideal for water tank aertion.

The design is oil-free, as no lubrication is needed for 24/7 air delivery.

Get more informtion on the Hailea blower range.

ACO500 diaphragm blower

Diaphragm blower curves

These air blowers are efficient for air deliver to tanks with water depths up to 4m and for air flow rates to about 200 liters per minute.

Waterfall LP100 range blower curves
There are 4 models in this range, PL20, LP40, LP60 and LP100.
Waterfall LP blower curves
Hailea brand blower curves and models
The Hailea brand is very versatile with over 10 models, with a capacity of up to 4m water depth and air deliver potential of up to 250m3/h.
Hailea ACO blower curve

Industrial uses - small tank aeration

These air blowers are efficient for industrial air delivery to tanks for sewage treatment and other applications. In the below image a manifold is adapted to allow 3 air lines, each delivering 40 lpm via micropore aeration hose.

Contact us
Telephone: 021-911 5835
Cellular: 0823903989
T: 0861428716
We deliver throughout South Africa and neighboring countries.
Ecotao address
Ecotao Enterprises cc
39 Olienhout Avenue
Plattekloof 3
Cape Town 7500