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Air Blowers and Compressors

From our low head fans to high pressure compressors...all our equipment is selected for it's suitability to the aquaculture industry.

Blower, Air Pump or Compressor

Which Should I Use?

Oil-less Air Compressors
The primary difference between the names blowers, air pumps and compressors, is the pressure to which they can compress air. All air compressors used for aquaculture purposes should be 'oil-less'.

Air Pressure
First determine the pressure required. To form bubbles, you must have enough pressure to overcome the depth of water above the diffuser + the supply of pipework friction loss and the diffuser's operating pressure. An example of this would be:

Tank Water Depth Above Diffuser	=	1 meter (100 mbar)
Supply Piping	=	50 mbar
Pressure Required for Diffuser	=	200 mbar
Total Pressure Required	=	350 mbar

Air Volume
Your next consideration is the volume of air needed. Every situation requires different airflows, if help is required in this, please do contact Aqua Systems

Air Flow
When using low pressure air, it is important that the air piping system and diffuser offer very little resistance to air flow. It is a good idea to use large diameter drainage pipe, this is because of the low pressures involved, this pipe works well and is economical.

Special Situations
If you must go deep under the water or use a high-resistance diffuser, you'll need to look at higher pressure compressors.

Pressure Relief Valves
These are very important when used with higher pressure blowers, such as the side channel and compressors, since throttling back blowers increases the pressure and causes over loads on the drive motors. The pressure relief valves should be rated to lift at the maximum blower pressure and should be large enough to pass most of the air produced by the blower. The biggest cause of motor burnouts are caused by incorrect pressure relief.

Fan Blowers up to 125 Mbar
	These Radial very low pressure blowers (fans) give an oil free air supply and are very energy efficient.
	Available either single or three phase, they are of a solid, lightweight construction, in modular design. Vibration free and quiet running.
	Bearings are greased for life, need no servicing and are the ideal solution for aeration systems, packed column aeration and degassing.

Capacity	up to 3420 m³/hr
Pressure	up to 125 mabr

Side Channel Blowers up to 720 Mbar
	Single or double-flow side channel compressors.
	Vertical shaft design, integral silencer and suction mesh

Capacity	up to 1500 m³/hr
Pressure	up to +720

Rotary Vane Blowers up to 2.2 bar
	Rotary vane compressors feature oil free operation and are very reliable.
	They are ideal for producing large quantities of air at pressures up to 1500 mbar (21.8 psi) for fine pore diffusers and applications at depth.
	Rotary vane compressors are ideal for deeper water aeration applications, or use in aeration systems, where diffusers require higher pressures to produce smaller bubbles.
	Dry running rotary vane compressors, with integral suction and blast air filters, pressure regulating valve. The sound cover produces low noise level and intensive cooling, also protects from touching hot surfaces. Flexible connections are possible, vibration free and easy to operate, maintain and build in.

Capacity	up to 510 m³/hr
Pressure	up to 2.2 bar

Blower - WPA
	Dry running and friction less operation
	Low noise level and pulsation
	High efficiency, easy to service

Range	No. of Models in Range	Pressure Range	Supply Range
WPA	4	Overpressure up to 1 bar	Capacity 1000 - 4000 m³/hr

10 bar Piston Compressors - LF
	Totally oil free operation
	Sealed for life main bearings,
	Complete unit including receiver tank and trolley mount option

10 bar - Oil-Free LF
Compressor Type	FAD (1) at Normal Working Pressure and 1800 rpm		Maximum Working Pressure		Installed Recommended Power		Noise Level dB(A) (3)
Compressor Type	l/s	cfm	bar	psi	kW	hp	Standard Version	With Silencing Hood	Pack Version
LF 15-10	3.60	7.63	10	145	1.5	2.0	82	69	67
LF 22-10	4.60	9.75	10	145	2.2	3.0	83	70	68
LF 40-10	8.80	18.65	10	145	4.0	5.5	83	70	68
LF 55-10	10.70	22.67	10	145	5.5	7.5	84	74	72
LF 75-10	17.10	36.23	10	145	7.5	10.0	86	77	74

8 - 10 bar Scroll Compressors - SF
	Totally oil free operation.
	Complete packaged unit with or without air dryer
	10,000 running hours practically without maintenance

Pack Version With Sound Insulated Canopy
Compressor Type	Maximum Working Pressure		Capacity FAD(*)		Motor Power		Noise Level	Dimensions						Weight		Air Tank
	Maximum Working Pressure		Capacity FAD(*)		Motor Power		Noise Level	Length		Width		Height		Weight		Air Tank
	bar(e)	psig	l/s	m3/min	kW	hp	dB(A)	mm	inch	mm	inch	mm	inch	kg	lb	l
SF 1 P	8	116	2.7	0.16	1.5	2	54	590	23.23	600	23.62	850	33.46	97	214	2X16(3)
SF 2 P	8	116	4.0	0.24	2.2	3	58	590	23.23	600	23.62	850	33.46	97	214	2X16(3)
	10	145	2.8	0.17	2.2	3	54	590	23.23	600	23.62	850	33.46	97	214	2X16(3)
SF 4 P	8	116	6.7	0.40	3.7	5	59	590	23.23	600	23.62	850	33.46	102	229	2X16(3)
	10	145	4.2	0.25	3.7	5	54	590	23.23	600	23.62	850	33.46	102	229	2X16(3)


Full Feature Version (Pack Version With Integrated Refrigeration Dryer)
Compressor Type	Maximum Working Pressure		Capacity FAD(*)		Motor Power		Noise Level	Dimensions						Weight		Air Tank
	Maximum Working Pressure		Capacity FAD(*)		Motor Power		Noise Level	Length		Width		Height		Weight		Air Tank
	bar(e)	psig	l/s	m3/min	kW	hp	dB(A)	mm	inch	mm	inch	mm	inch	kg	lb	l
SF 1 FF	7.75	112	2.7	0.16	1.5	2	54	590	23.23	600	23.62	850	33.46	120	265	2X16(3)
SF 2 FF	7.75	112	4.0	0.24	2.2	3	58	590	23.23	600	23.62	850	33.46	120	265	2X16(3)
	9.75	142	2.8	0.17	2.2	3	54	590	23.23	600	23.62	850	33.46	120	265	2X16(3)
SF 4 FF	7.75	112	6.7	0.40	3.7	5	59	590	23.23	600	23.62	850	33.46	125	276	2X16(3)
	9.75	142	4.2	0.25	3.7	5	54	590	23.23	600	23.62	850	33.46	125	276	2X16(3)

12 Volt Compressors
	Ideal for fish transport
	Long life replaceable diaphragm and brushes
	Oil free air supply

12 VOLT COMPRESSORS
Model	Pressure Range psi	m3 / hour
DC20	2 - 10	0.4 - 0.8
DC40	1.5 - 18	1.1 - 1.9

Aquarium Air Pumps
	Ideal for research systems to supply multiple tanks
	Range from 23 - 110 lpm output
	Include multiple outlet manifolds

Order No.	Air Output	No. Airstones Able To Supply	Watts	Noise dB
A-812	23	20	21	31
A-813	44	40	40	34
A-814	75	70	59	38
A-815	110	100	140	42

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Air Blowers and Compressors

From our low head fans to high pressure compressors...all our equipment is selected for it's suitability to the aquaculture industry.