SELECTING A BREATHING AIR COMPRESSOR for SCUBA and SCBA APPLICATIONS

ENGINE VS. ELECTRIC

Proposals for equipment to provide “on site” filling of SCUBA and SCBA tanks often disregard electrically powered compressors as a viable option. If the intent is to provide “unlimited” fill capability where no electrical power is available, then the engine driven SCUBA compressor may be considered - - -although a properly sized generator to power the "on site" compressor is a better option. If a stationary SCUBA compressor is in the neighborhood, the operator can approximate the required number of fills and if this number is not too large, a properly sized storage system or two will do the job. The storage trailer can be returned for refill for prolonged situations. The reasons for attempting the storage alternative are as follows:

•  A reciprocating engine has hundreds of moving parts; an electric motor has one. The maintenance comparison for a compressor in this application is “no contest”.

•  An engine produces considerable vibration; an electric motor produces none. High Pressure compressors with multiple inter-coolers, are relatively fragile. Engines and related harmonic vibration are detrimental to all compressor components.

•  Engines produce carbon monoxide (CO). Electric Motors produce none. Proper operating procedures must cope with this hazard. Other sources of contaminated air may jeopardize on site compression. Potentially poisonous smoke from the fire and exhaust from other vehicles combined with variable wind currents can create a nightmare for operating personnel.

•  Engines are much more expensive to buy and maintain.

•  Engines generate additional heat. The operator must take extra care in selecting the proper design and installation of engine driven systems; otherwise, compressor valves and the purification process will suffer. Heat is a major obstacle to producing good breathing air.

These factors certainly justify a serious pursuit of alternative solutions to engine driven High Pressure compressors for SCUBA and SCBA. If no other options exist, the operator must take steps to minimize the negative aspects of engine driven compressors.

For answers to any of your questions, Submit an inquiry or call us at:

713-592-0377

High Pressure Scuba Compressors

BUYING TIPS - BREATHING AIR COMPRESSOR and SCUBA COMPRESSOR Technology

1. Get pricing on sample parts such as rings or valve set. Some vendors will sell cheap, only to rape you on parts.

2. Seek a vendor with a liberal warranty history. One that knows good service is the best way to preserve a good reputation.

3. Ask for a list of customers that have experienced problems (everyone has them) to see if the solution was satisfactory.

4. Seek a vendor that adheres to simple, uncomplicated designs with components that are readily available off the shelf locally.

5. Shun a vendor whose purpose is to make sure you must to return to him for everything. Ask for second sources on components and supplies.

6. Seek a vendor that emphasizes training and has the experienced personnel to give complete courses followed by lifetime technical support.

7. Obtain a list of customers to ascertain the level of training they received.