High Pressure Air Pump? <7psi

[jrpark22000]

Does anyone know of a air pump able to produce anything substantially greater pressure than a luft pump? A luft will do 7psi but my ozone setup could use more.

If found whitewater and sweetwater pumps, but they only produce 9psi max and run $290 and $972 each. I've also found industrial DC powered units which start at $350.

Is there a common pump or solution I have missed?

[Dustin1300]

I don't know a lot on this subject but ABOUT bought a Volcano Skimmer and had to do a little investigations on air pumps. (Because that skimmer is not as efficient as some of the new ones, decided to not go that route)

Anyways, the Alita Air Pumps were popular with it but not sure on the PSI.

http://www.amazon.com/Alita-Air-Pump.../dp/B006H61TU6

[Dustin1300]

Another one that was popular was the EcoPlus Air Pumps....

Check out this link with some options

http://www.hydroponics.net/c/413

[jrpark22000]

Originally Posted by Dustin1300

I don't know a lot on this subject but ABOUT bought a Volcano Skimmer and had to do a little investigations on air pumps. (Because that skimmer is not as efficient as some of the new ones, decided to not go that route)

Anyways, the Alita Air Pumps were popular with it but not sure on the PSI.

http://www.amazon.com/Alita-Air-Pump.../dp/B006H61TU6

Thank you for both replies. A quick search found the ratings for both makes. Alita max about 8psi for their AL-120 @ $420 and 10 psi for the AL-200 @ $649

Originally Posted by Dustin1300

Another one that was popular was the EcoPlus Air Pumps....

Check out this link with some options

http://www.hydroponics.net/c/413

EcoPlus max 5.1psi

[tkeracer619]

Why on earth would you need more pressure? What type of ozone is this?

[jrpark22000]

Originally Posted by tkeracer619

Why on earth would you need more pressure? What type of ozone is this?

As pressure increases so does the efficiency of the ozone reactor. The less ozone that is used the fewer possible negative impacts. My reactor should be able to handle 10psi so I’d like a pump that could generate 12psi or more. I’d be nice to find a cheaper unit >$200. I can build an air compressor and tank combo for about $200 and can generate 40-50psi.

[tkeracer619]

IMO you are over thinking this.

[jrpark22000]

Originally Posted by tkeracer619

IMO you are over thinking this.

People tell me that in everything I do. Nothing is perfect, spending time engineering solutions drives learning and keeps my mind active. For me, it is much better than watching the idiot box.

[tkeracer619]

I understand the want to push everything to the limits however I don't think chasing pressure like you are is worth it. I would instead focus on setting up a proper reactor with 100% of its output filtered by carbon. If you want extra protection why not plumb a uv into the output before the carbon?

Heck most people don't run it through anything and are absolutely fine.

[jrpark22000]

Thank you for your opinion. If you are interested in my setup I have posted on its configuration, which 100% of the output is filtered by ROX GAC.

I’m still looking for a high pressure air pump with the specs I stated in post #6. I’d like this thread to be used to finds such a pump vs discussing the reason why I use it. I can discuss my setup in any of the threads where I have discussed its config.

[moondoggy4]

Hakko Linear diaphragm air pumps model HK80 does 7.8 psi

[Playa-1]

Ingersol Rand makes some pretty good air pumps

[tkeracer619]

Double post.

[tkeracer619]

Yea I've got a IR 20hp screwdrive that will do the job . Seriously though an air compressor will put too much oil into the water no matter how many filters you run on it. Maybe can find something in the medical field but I'm sure the cost will reflect it.

[jrpark22000]

Originally Posted by Playa-1

Ingersol Rand makes some pretty good air pumps

I’ve got a big upright dual stage compressor. Even if I could get all the oil and water out of the output, It might be a little overkill.

Originally Posted by tkeracer619

Seriously though an air compressor will put too much oil into the water no matter how many filters you run on it. Maybe can find something in the medical field but I'm sure the cost will reflect it.

Agreed on the oil, it’s why I’m looking at diaphragm compressors. I’ve found hobby grade for airbrushes, but they’re not rated for continual duty. I’ve also found some for medical use for nebulizers and air pumps. Neither medical pump style is pressure rated.

[jrpark22000]

Originally Posted by moondoggy4

Hakko Linear diaphragm air pumps model HK80 does 7.8 psi

Cool find, this is the best option to date. $220 on ebay and replacement diaphram kits are $40. Still holding out for a 10-12psi for now, but this is good option.

[Fishbulb2]

Originally Posted by jrpark22000

The less ozone that is used the fewer possible negative impacts.

I've thought about this for awhile now and I think you should post it in the chemistry forum and try to get Randy's input on it. I'm not a chemist by trade, but this doesn't seem right to me. A high pressure reactor will allow you to use less ozone output from your ozone generator, but it will still take the same amount of ozone in the water to change ORP or effect clarity. So if by negative impacts, you are referring to the generation of harmful oxidative species, such as Bromate, then it doesn't matter at all how the ozone got into the water, it only matters that bromide and ozone came in contact. I'm not sure that there is any way around this really. The generation of harmful byproducts is also largely dependent on exact chemistry of tanks water. If there are molecules around that have a higher reactivity with ozone, then those will get oxidized, like possibly organics. Otherwise, whatever is left over will get oxidized, like possibly bromides. Increasing the reactors pressure will allow you technically run things less often, but all compounds should be effected equally just as if you were running the reactor at lower pressure for longer. I think these high pressure systems are really more practical for commercial aquaculture and not really necessary for the few hundreds of gallons that hobbyist systems typically run at. To me the logic would be to use this strategy only if my current ozone generator couldn't keep up with my demand while running 24/7, which can occur often is large commercial set ups.

FB


For what it's worth too, I always think running things at high pressures is more dangerous (think flood, leaks, and hose barbs).

[jrpark22000]

Originally Posted by Fishbulb2

I've thought about this for awhile now and I think you should post it in the chemistry forum and try to get Randy's input on it...

I have. Thread "Ozone Use" starting last fall about post # 300. Boomer goes into details in the benefits of increased pressure. This same request for a air pump was posted there first.

Originally Posted by Fishbulb2

For what it's worth too, I always think running things at high pressures is more dangerous (think flood, leaks, and hose barbs).

I am still operating under the burst strength of the reactor which is the weakest point. 10psi is well below the burst strength of PVC and couplers.

[Playa-1]

You need one of those fancy ones that fills up Scuba Tanks

[jrpark22000]

Originally Posted by Playa-1

You need one of those fancy ones that fills up Scuba Tanks

Awesome solution. I can also use it to swim with the fishies myself. Think they want the company? My wife will think a $3k pump might be a little overboard and 4500 psi may be a little too much for standard pvc.

[jrpark22000]

It looks like there isn't an aquarium pump to meet the needs. After enough digging into industrial pumps, I'll try a Thomas. It's loud at 55db and sucks 1.3a, but by running it at 10psi I hope it'll be quieter and draw less.


Thomas 010CA26

Compressor/Vacuum Pump, Piston Type, 1/25 HP, Voltage 115 VAC, 60 Hz, 1.3Amps, Inlet 1/4 In, Outlet 1/4 In, Max Continuous PSI 10, 0.30 CFM @10 PSI, 0.20 CFM @20 PSI, Length 5 1/4 In, Width 3 In, Height 4 3/8 In, 3000 RPM, Sound Rating 55 dba