Scuba Air Compressors & Scuba Tank Compressors

Learn About Scuba Compressors

Nothing is more important to a diver than having a filled scuba tank before a dive, but most divers do not put much thought into how it gets filled with air. While this is fine for casual divers, professionals and dive shops need to understand the workings of scuba compressors for safety and ease of breathing. Dive shops are the usual place to fill up scuba tanks, but some serious dive professionals have started purchasing their own compact or portable scuba air compressors.

While scuba air compressors are convenient for frequent divers, there are some downsides to consider. In addition to being expensive, these compressors can also have heavy maintenance fees to keep them in working order. That is a great reason to buy a reliable compressor from Nardi America! For anyone in the market for a scuba tank compressor, they should first know what it is and how it works.

The Difference Between a Scuba Air Compressor and an Air Compressor

Scuba compressors are normally high pressure compressors that have been designed to fill scuba tanks with breathable oxygen. Similar designs are used to fill air supply lines for firefighters and hospitals.

The key differences between these compressors and those used to fill up a tire are that these have much higher pressure and give much higher air quality, as these are uniquely designed to supply breathable oxygen.

Scuba tanks, for example, must be filled at about 3,000 psi. Clearly, a regular air compressor could not get anywhere near that pressure. Scuba air compressors also feature a filter system to purify the air. These filters remove any moisture and oil in the air. From there, Carbon Monoxide is removed through the activated Carbon filters. Unfiltered or contaminated air could easily lead to suffocation of the diver, so regular air compressors are not viable for filling up scuba tanks.

How Does It Work?

If it sounds complicated, that would be because it is. When broken down into smaller steps, however, it becomes much easier to understand how a scuba air compressor works.

The first step is when the compressor takes in air through an intake filter, then pushes it out at around 100-150 psi. The compressor has been known to heat up during this process, so an internal cooling system keeps it from overheating by dissipating the excess air.  Nardi has one of the best cooling mechanisms on the market.

From this first point, the air goes to the second stage where it becomes even more compressed and reaches 800-1000 psi. Following the second stage, the air is further cooled by the internal cooling system before it goes into a moisture separator to remove any moisture from the air.

At the third stage, the air is compressed to a maximum of 5,000 psi. Once this is complete, the air goes through another cooling system and moisture separator to ensure that the air is as breathable as possible. Additional filters may be mounted to further purify the air.

The final stage involves the user setting the pressure pump to roughly 3,000 psi. From there the air is able to be sent into the scuba tank and the diver is ready to begin.

Check out our line scuba air compressors and feel free to contact us with any questions.