Portable compressors-too ;
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Portable-compressors-too:
We started talking about portable compressors here. Now we carry on with our discussion below.
Yet, almost all non-oil less compressors will have oil carryover. That being the case you'll want to add a coalescing filter downstream of your compressor, to remove oil from the air stream.
If you do that, ensure that you install a 5 Micron general purpose filter upstream from the coalescent unit.
If your duty cycle is high - as in you're using the compressor all day - you might also add a 40 Micron general purpose filter upstream from the 5 Micron unit. This will extend the life of both the 5 Micron and coalescent units.
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Sometimes the capacity of your application demands a little larger compressor, and there are a variety that are still portable, but now on wheels.
Portable compressors usually are configured with an electrical cord and plug to connect the unit to a 120 VAC outlet.
Some are dual voltage, and can be wired to run on a 220 Volt circuit.
If you're not an electrician, make sure you have a professional deal with the rewiring. Be safe! Leave electrical work to persons that are qualified!
When powered by 220 volts, compressors are more efficient and have greater capacity than when supplied by 120 VAC.
Portability of compressors knows no bounds! Compressors are routinely flown into to remote sites all over the world.
And, there aren't many times that you drive down a highway, and don't see a work crew using a portable compressor on road construction. Since construction usually slows traffic (almost always when you're in a hurry and trying to get somewhere quickly it seems) you'll have the opportunity to check out the portable compressor as you drive by.
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When it comes to portable compressors, the same rules for selection apply as they do to in-plant compressors.
You need to know:
- capacity required in flow and pressure
- how the unit is to be powered (what voltage or type of fuel)
- how to address the water generation issue
- deal with oil carryover if it's not an oil less compressor
- how you will regulate pressure downstream of the reservoir to eliminate pulsation as the compressor kicks on and off
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