The
most efficient linear air compressors & diaphragm pumps for pond aeration
and other applications where clean, constant oilless air is required We
use mainly these three models of small linear diaphragm pumps and
cheap pond pumps so please take the time to understand the limitations
and benefits of each one. If you have any questions or need help
we will be glad to assist you!
Understanding the
concept of building the perfect aeration system means having a basic
understanding of the various air pumps, blowers and compressors that
are available. The compressor or pump you choose will require some
understanding and knowledge as to what you need the pump to do. Every
pond diffuser, every length of airline, and every airstone connected
to your compressor will require a specific CFM (cubic feet per minute)
of airflow as well as a required PSI (pounds per square inch) to overcome
the head-loss and internal friction of every foot of tubing and the
specific resistance inherent in the diffuser system being used.
One important factor in choosing a silent linear air pump or diaphragm
pump is to understand that it requires 1 PSI to push air bubbles to
a depth of 28" or 2.3 feet deep. So if your pond averages 6 feet
deep then before you even consider the number of diffusers or thetype
of diffusers to be used you have to ensure your electric linear air
compressor can deliver at least 2.6 PSI. But be careful because each
diffuser, whether it is a diffuser disc, an airstone or some sort
of homemade diffuser that you want to hook up to your cheap pump,
all of them will have a certain resitance that will add pressure requirements
to your formula.
A single membrane disc diffuser for example can add an extra 12 inches
of virtual depth (this means that every disc in your aeration system
will demand an extra 0.42 PSI on your compressor) while a high-efficiency
glass-bonded diffuser only have a registered air resistance of less
than 0.25 PSI.
If you are considering
one of these compressors then you likely are not running long lengths
of tubing...most of these low pressure systems can pump air through
standrad 3/8" and 5/8" for small distances from 50 or 200
feet depending on the compressor.
It is only when you need a compressor to push air through several
hundred feet of airline you need to cinsider the line loss calulation
of airline which is the amount of pressure and friction that builds
up against the walls of the tubing and the associated loss of pressure.
This means that in a length of 200 feet of tubing you might require
an extra 2 PSI to overcome the air volume friction based on the inner
diameter of the tubing.
Linear
Diaphragm Air Pumps
Price
& More Info With
a higher PSI output and much lower watts than any pond pump or compressor
on the market these cheap air compressors have become our favorites
when the pressure requirements are beyond the WhiteH20™ models
listed above. With the smart and efficient motors in these UL-Listed
and CE-Approved pumps, pond aeration systems just keep getting easier
and any home-made do-it-yourself aeration system will be trouble-free
with with these long-lasting and powerful linear air pumps.
The linear air pumps used by ThePondReport.com average about
40% more airflow and about 20% lower 110/115 V power consumption
than similar models. 230V is also available for the same price.
Specify your power needs by email when ordering. You will see
similar looking air pumps imported from Asia like pumps from
China or Tiawan Made pumps but the SweetH20® brand is significantly
different and while we don't want to insult any manufacturer...these
pumps are the best available!. These are designed for 60-Hz
(North American) operation to produce maximum efficiency. These
linear compressors model permit continuous operation exceeding
3 years in normal continuous usage.
The
only maintenance required is minimal: Simply clean the air inlet
filter as needed with a few sharp breaths, a vacuum passage
or according to the included instrcution manual. As with all
of our oiless pond aeration air pumps there is no need for lubrication,
and the included outlet air is always clean. Besides being ultra-efficient
they are also super-quiet. These units are often found in University
classrooms, pet store or laboratory or anywhere, including the
pond, where clean efficient pumps are a must!
Each long-lasting pump uses a heavy, cast-aluminum, drip proof
housing. Standard models are 115V/60 Hz with 6' power cords.
UL-listed and CE-approved. Three-year warranty (does not include
filters or diaphragm). Available in 230 V and 50 Hz by special
order only. To maximize the life of these linear compressors
it is best to keep the unit in a shed or build a small structure
like a doghouse to hold it from the elements.
By operating your pump within the correct pressure range (we
like to stay about 25% less than the maximum PSI rating of the
model) you will greatly reduce the need for changing diaphragms,
heads or valves. Purchasing a repair kit, despite your best
installation intentions, is not a bad idea. If all parameters
of the pumps are respected you may need to change the diapghrams
once every 24 to 48 months but it's easier to have one on hand
in your tool-shed instead of buying your repair kit online after
a break-down as often fish don't take a fancy to being a week
without air! Because these pumps have an available repair kit
they are our highest reviewed pond aeration pump.
60 LPM Diaphragm Air Pump
- 2.2 CFM Open Flow 6 PSI maximum
120 LPM Diaphragm Air Pump - 4.4 CFM Open Flow 7 PSI maximum
250 LPM Diaphragm Air Pump - 9.0 CFM Open Flow 7.5 PSI maximum
Price
Includes USA Shipping Each
long-lasting pump uses a heavy, cast-aluminum, drip proof housing.
Standard models are 115V/60 Hz with 6' power cords. UL-listed
and CE-approved. Three-year warranty (does not include filters
or diaphragm). More
Info
Linear
Piston Air Pumps Price
& More Info
These are
not linear "diaphragm," but true linear "piston" type pumps. Since
the only moving part—the piston—floats on a bed of air, a exceptionally
long service life can be expectedThese
are not linear "diaphragm," but true linear "piston" type pumps.
Since the only moving part—the piston—floats on a bed of air,
a exceptionally long service life can be expected (8 years of
continuous life is not uncommon). You will experience exceptionally
quiet, energy-efficient operation and clean, oil-free air. An
outdoor-rated housing, a grounded power cord, 3/4" hose barb
and 115V/60 Hz are all standard. UL-listed. One-year warranty.
• Extremely quiet.
• Outdoor-rated housing.
• True linear piston.
• Exceptionally long service life.
• Outstanding energy efficiency.
MEDO
Piston Air Pumps The
pump's unique and simple structure has no complicated transmission
mechanism such as a crankshaft, connecting rods, ball bearings, etc.,
which are widely used in between the motor and compressor in conventional
pumps.
The activated electro-magnet attracts the piston against the
return spring, while air is taken into the cylinder through
the opened inlet valve. When the electro-magnet is deactivated,
the return spring pushes the piston back, and the compressed
air is brought out of the cylinder through the now open outlet
valve. The system can function as either an air compressor or
as a vacuum pump.
Replacement of the piston is easily achieved by simply removing
the end cap connected to the pump housing by unscrewing the
four screws which hold the cap in place. Completely oil free
construction is achieved by the combination of smooth Teflon®
seals with superior resistance against abrasion on sliding piston
surfaces and the "air bearing effect" created by the unique
air path design.
Longer
Durability Oil free construction requires no periodical
oil-up. This simple mechanism has the fewest number of moving
parts possible. Long and stable performance is assured
57
LPM Linear Piston Pump - 2.0 CFM
3 PSI max 85
LPM
Linear Piston Pump
- 3.0 CFM 4 PSI max
160 LPM
Linear Piston Pump
- 5.7 CFM 4 PSI max
Price
Includes USA Shipping Each
long-lasting pump uses a heavy, cast-aluminum, drip proof housing.
Standard models are 115V/60 Hz with 6' power cords. UL-listed
and CE-approved. One-year warranty (does not include filters
or piston cups). .
More Info
Self-cooling design Cool intake air is blown onto the
electro-magnetic coils through an orifice, making sealed construction
possible and preventing the escape of operating noise.
Low noise level The machine has no complex transmission
system. This results in the lowest noise level possible due
to the absence of rotating parts or ball bearings. Operating
noise is also quelled due to the pump's sealed configuration.
Small
output air pulsation Piston reciprocation is synchronised
with input power frequency regardless of load (i.e.; 3000 rpm
for 50Hz and 3600 rpm for 60Hz). Such high RPM adversely reduces
each discharge volume and eliminates any problems caused by
pulsation.
Low Power Consumption The piston is the only component in
the system which moves. The absence of transmission usage to
pass the power to the piston means that there is a large reduction
in energy loss, and an improvement in efficiency over other
pumps.
Compact composite structure This unique system enables direct
reciprocation of a single part which consists of composite piston
and armature. The incredibly compact and lightweight design
was achieved by combining what are two different functions in
other pumps - motor and piston - into a single structure.
Anti-overpressure mechanism When the output pressure exceeds
the rated value the piston stroke will automatically diminish
and prevent over-pressurising. At the same time, the current
and power consumption will also be automatically reduced, thus
eliminating possible failure caused by tentative overload.
Low vibration The aluminium die-cast piston produces very
little vibration or kick-backs. Little or no damage from vibration
stress is therefore sustained during operation. Even secondary
vibrations are absorbed by special soft rubber feet.
Quick Response Due to the lower starting current, the unit
can immediately respond to frequent on-off input signals, even
under back pressure conditions.
Diaphragm
Air Pumps These
tough air compressors can feed 1 to 5 pond diffusers or airstones
(according to CFM requirements) in a pond up to 8 feet deep. Best
longevity is delivered when operating pressure is between 2.2 and
3.5 PSI ...see the operating curve chart below to design your homemade
aeration system using these pumps or send us an email with questions.
Run one or more diffusers or airstones with these pumps!
I have so many clients ask where to get a long lasting air pump
to run a few diffusers and have found a good line of imported,
outdoor rated air pumps and I finally found a line that I think
outperforms many models that I have reviewed.
These
are sturdy, very reliable, and quiet air pumps that will provide a
long service life and they have a two-year warranty which isn't bade
because I've tried many diaphragm pumps that seem to need a diaphragm
repair kit every 6 months! Built for outdoor use, keep it protected
to prolong the average life-expectancy. You don't need anything fancy;
just build a small box, preferably with ventilation (small fan) to
keep your pump out of the snow, rain and away from the gnawing teeth
of muskrats, beavers or other pond creatures. They are designed for
outdoor use but why not protect your investment?
Most pumps deliver a more-than-modest output from 1.8 to 7.9
cfm (50 to 223 lpm) of oil-free air with a maximum pressure
of 4 psi. Remember that each 2.3 feet of water is 1 PSI so with
a max dishcharge of 4PSI you can pump air to a maximum of 9
feet with the larger model...but this doesn't include resistance
from the diffusers you are using or the friction loss from the
tubing etc. Each pump has a 3/4" barb outlet and grounded power
cord (5 ft). UL-listed. Two-year warranty.
Use the specification curves of each model pump to determine
how many diffusers can be used with each pump as each type of
diffuser (silica bonded stone, membrane, pourous granite) will
have varying resistance. 80
LPM Diaphragm Air Pump 100 LPM Diaphragm Air Pump 120 LPM Diaphragm Air Pump
Price Includes
USA Shipping These
sturdy, reliable, very quiet pumps will provide a long service
life. Built for outdoor use, The diaphragm air pumps deliver
oil-free air with a maximum pressure of 4 psi. Each pump has
a 3/4" barb outlet and grounded power cord (6 ft). More
Info
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SECOH
Air Pumps
Popular Models Include: EL-60, EL-80, EL-120W, EL-150, EL-220 Our
Top Pump Brands Discounted On Amazon: Hi-Blow
| Medo
| SECOH
| Blue
Diamond | HAKKO
| Matala
The SECOH line of pumps is very popular in Europe but is now
available in USA and Canada as well. The best price for a EL-60
is $275, the 80-17 is $325. Known to wear out wuickly if the
max pressure reatings are surpassed the warranty is only one
year.
Conversion
guide/calculator : 1 l/min = 0.06 m³/hr, 1 m³/hr = 16.7 l/min
100mbar = 1m water depth Air Delivery : Please note that 'Open
Flow' relates to the maximum air delivery with nothing connected
(!) .. to calculate the actual air delivery at any given depth
download the appropriate datasheet from our 'Free Downloads'
section. All SLL & EL range pumps come with a European Schuko
plug which can be cut off for direct wiring or an adapter can
be supplied with a fused European to UK plug adapter. Euro price
shown is fixed at x1.30. Actual price will be at the correct
conversion on checkout. VAT is not a component of the price
shown as Parts and Pumps is not currently VAT registered so
does not claim or charge VAT. EL-120 W Secoh Pump EL120 W Twin
Linear Compressor Optimal Pressure - 0.25bar Open Flow - 225
l/min Sound Level - 39 db(A) Max Power - 131w @ 200mbar Dims
(LxWxH) - 268.5x357x228(mm) Connection - 27mm Ø Net Weight -
16kg see download section for more information Key Features
: Same spares kit for both heads Optional outlet ports (New!)
Lesser load and longer predicted lifetime using 2 heads and
should one head stop you still get 50% airflow We recommend
the purchase of a pressure relief valve SE11 with this pump
to avoid over pressurisation. click to see larger image Price:
£358.00 [€465.40]
Protect your pump with our new and improved housing and platform!
SECOH SLL SERIES PUMPS Secoh Linear Air Pump Model SLL-40 1-year
warranty 115V, 60HZ, 45W 1.62 CFM at 1.7 PSI Airflow = 46 liters
of air per minute FREE SHIPPING! Secoh SLL-40 $225.00 Quantity:
9.70" L x 6.97" W x 6.93" H SLL Series Operating Instructions
SLL Series Repair Instructions SLL-20-50 Pump
Secoh Linear Air Pump Model EL-60 1-year warranty 115V, 60HZ
2.6A, 56W 2.30 CFM at 2.1 PSI Airflow = 65 liters of air per
minute SALE! FREE SHIPPING! Secoh EL-60 $275.00 Secoh EL-60
Secoh Linear Air Pump Model EL-80-15 1-year warranty 115V, 60HZ
2.6A, 61W 2.82 CFM at 2.1 PSI Airflow = 80 lliters of air per
minute SALE! FREE SHIPPING! Secoh EL-80-15 $285.00
Secoh Linear Air Pump Model EL-80-17 1-year warranty 115V, 60HZ
2.6A, 71W 3.00 CFM at 2.4 PSI Airflow = 85 liters of air per
minute FREE SHIPPING! Secoh EL-80-17 $325.00 Available at:
www.septictankparts.com
AL-15A -- $119.75 Power: 17W Output: 20 lpm (liters per minute)
@ 1.4 psi - Typically good for at least 20-25 aquarium air outlets,
variable depending on tank depth and the amount of air desired
at each outlet. AL-40 -- $169.75 Power: 46W Output: 48 lpm @
2.18 psi - Typically good for at least 50-60 aquarium air outlets,
variable depending on tank depth and the amount of air desired
at each outlet. AL-60 --$145.75 Power: 60W Output: 68 lpm @
2.18 psi - Typically good for at least 65-75 aquarium air outlets,
variable depending on tank depth and the amount of air desired
at each outlet. AL-80 -- Buy it for $337.75 Power: 85W Output:
85 lpm @ 2.18 psi - Typically good for at least 80-95 aquarium
air outlets, variable depending on tank depth and the amount
of air desired at each outlet. The new style AL-80 takes the
Al-80/120 repair kit. The new style pumps are apple green in
color. The old style AL-80 takes the AL-60/80 repair kit. AL-120
Power: 124W Output: 130 lpm @ 2.9 psi - Typically good for at
least 125-145 aquarium air outlets, variable depending on tank
depth and the amount of air desired at each outlet.
ALITA Linear Air Pump Download Literature Designed to deliver
high volume of steady airflow at low-pressure ranges, ALITA
Linear Air Pumps are of high efficiency, low energy consumption
and perform with low operation noise. With no sliding parts
and oil-less components, ALITA air pump requires no lubrication
and transfer air without any contamination. In addition to a
wide range of standard pump models that can be utilized off
shelf, we also offer OEM and customized linear air pumps to
industry for original equipment application. OEM business demands
reliability, performance, efficiency and customer satisfaction.
Let ALITA linear air pumps be a part of your product solution.
Product Features Steady airflow Oil free, no contamination or
pollution Reliable intermittent or continuous duty operation
Long service life Quiet and low vibration Low energy consumption
Compact design and solid construction Indoor or outdoor operation
Thermal protection Simple maintenance Applications Aeration
Air purification Air sampling Bubble bath Gas analyzer Liquid
agitation Medical and scientific equipments Pneumatic beds;
air mattresses Wastewater treatment; aerobic treatment Various
industry
RoHS Compliant RoHS Compliant = Pb-Free = Green Alita Linear
Air Pump introduced from 2006 onward will meet the Restriction
of Hazardous Substances (RoHS) compliance directive of the European
Union. The full description of this legislation, commonly called
RoHS, is "Directive 2002/95/EC of the European Parliament and
of the Council of 27 January 2003 on the restriction of the
use of certain hazardous substances in electrical and electronic
equipment. The directive requires manufacturers to significantly
reduce lead, mercury, hexavalent chromium, cadmium, polybrominated
biphenyls (PBB), and polybrominated diphenyl ether (PBDE) content
in electronics and electrical products sold in the EU beginning
in July 2006. Alita developed an internal compliance team to
direct these efforts and implement RoHS compliance under the
EU directive. Alita implemented aggressive timelines to meet
requirements in advance of the July 2006 compliance date and
will continue to work closely with key customers on their specific
requests. Available at: ww.alita.com
LINEAR
air pumps from Malibu Water Our
Top Pump Brands Discounted On Amazon: Hi-Blow
| Medo
| SECOH
| Blue
Diamond |
High output continuous-duty oil-free rocking piston air compressors by Aquatic Systems are an industry standard in clean air for pond and lake aeration. These compressors are replacements for the Vertex Aeration Systems or can be used as stand-alone air pumps if your application is appropriate. I..
PondLyfe™ aerators from Vertex address the growing need for a professional quality aeration system at an affordable price for water gardens and smaller ponds up to 1.5 acres in size. PondLyfe aerators benefit small pond owners who want the best available technology to restore their ponds to a cle..
Aerates ponds from 1/4 acre up to 1 acre in size with a maximum diffuser placement of 10' deep! This unit also comes with a lot of accessories for the price. The compressor should be kept in some sort of housing to keep it out of the rain and snow, build a simple doghouse style struct..
Medo® USA Linear Piston Air Compressors
These are not linear "diaphragm," but true linear "piston" type pumps. Since the only moving part—the piston—floats on a bed of air, a exceptionally long service life can be expected (8 years of continuous life is not uncommon). You will experience exce..
Stratus™ line of rocking piston air compressors, each one designed specifically for the demanding job of 24 hour operation. They are ideal for pond aeration systems. The oil-less design safely aerates ponds with no electricity in the water. The shore mounted compressor sends air through tubing to..
Our recommended continuous-duty oil-free rocking piston air compressors are the highest performing piston compressors available. They are the perfect choice for aerating small ponds, sending air to mixing diffusers or dock bubblers or deep lake applications. Each pump comes equipped with noise re..
These cabinet-mounted 1/4 HP and 1/2 HP rocking piston air-compressors are ideal for aeration and dock bubblers. Each ystem comes with cabinet,two outlet manifold valves, air filter and ventilation fan. Airline and diffusers are optional or use whatever suits your application.
Stratus™ line ..
Stratus KLC® Linear Diaphragm Air Compressors
These linear diaphragm compressors are very durable and the continuous duty motors are designed for years of service. Ideal for aerating ponds,
water features, bait and holding tanks and large aquariums.
115 volt motors are super q..
Whitewater® blowers are a very good value for aquariums, hydroponic and compost applications, pet stores, bait systems and seafood holding systems.
They are smaller, lighter and quieter than most blowers and very energy-efficient. They feature a "cupped" impeller for reduced noise. The speci..
Linear II Diaphragm Air Pumps BACKORDERED UNTIL DEC 15, 2022
Comparable models available here>>> https://www.thepondreport.com/store/linear-piston-air-pumps
With higher output and lower watts—our best linear air pumps.
SweetWater® Linear II air pumps average about 40% more air an..
Aerates ponds up to 8’ in depth and 1⁄2 acre in size. Unit produces 1.5 CFM at 8’ of depth. Great for when you need an energy efficient way to aerate your pond 24 hours a day. UL approved for outdoor use.
0.5 amp draw makes this aerator very affordable. 2 year warranty.
Aeration Package..
These repair/rebuild kits include all you need to restore or repair your Brookwood piston air compressor that is installed in the Vertex aeration systems. Please ensure you choose the correct kit for your model number. If you are unsure please contact us.
COM401-MK
Rebuild Kit Including..
Regerative blowers are well-known as an energy-efficient and quiet way to provide oil-free air at high volumes. The Sweetwater® regenerative blowers can reach higher pressures and surpass the efficiency and functionality of most commercial air blowers even in the most corrosive of atm..
These repair/rebuild kits include all you need to restore or repair your Quantum piston air compressors. Please ensure you choose the correct kit for your model number. If you are unsure please contact us.
..
These repair/rebuild kits include all you need to restore or repair your Stratus piston air compressors. Please ensure you choose the correct kit for your model number. If you are unsure please contact us.
..
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