Office Address

4040 W. Chandler Ave
Santa Ana, CA 92704
 

Telephone

Toll-Free:866.XS.SCUBA

Direct:714.424.0434

Fax:714.424.0454

4040 W Chandler Ave
Santa Ana, CA, 92704

XS Scuba is the most complete full-line supplier of scuba diving products from masks, snorkels, fins, buoyancy compensators and regulators. XS Scuba has completed intensive industry testing on its nearly 500 diverse products so that you can rest assured that your equipment is ready to go when you are.

Demo FAQ page

Regulators

Topic Class

Are XS Scuba Regulators compatible with nitrox?

XS Scuba regulators have been prepared for use with enriched air nitrox (EAN) where the oxygen percentage does not exceed 40% (EAN40).This is because the regulators are built to a high standard of cleanliness using EAN compatible parts and lubricant. If it is your intention to use your new XS Scuba regulator with EAN up to 40%O2, it is critical that you maintain the internal cleanliness of your regulator (see section on Care and Maintenance in the owner’s manual). If it is your intention to use your regulator interchangeably with breathing air, the breathing air should be “oxygen-compatible” or “hyper-filtered” whereas the condensed hydrocarbons in the air do not exceed 0.1mg/m3. Your local XS Scuba Dealer can help you determine whether the breathing air they provide meets this criterion. Standard compressed breathing air, often referred to as “Grade E” does not necessarily meet this criterion. Grade E breathing air may contain certain levels of hydrocarbons, including traces of compressor oils, that while not considered harmful to breathe, can pose a risk in the presence of elevated oxygen content. Passing hydrocarbons through a valve and regulator creates a cumulative effect where the hydrocarbons build up over time along the internal passageways of the equipment. When these hydrocarbons come in contact with high pressure oxygen enriched air, they can pose a very real hazard that can lead to combustion. Therefore, if a regulator has been used with Grade E breathing air, it should receive overhaul service, including hydrocarbon cleaning, prior to being put back into nitrox service. Although second stage components are not subjected to high pressure EAN, XS Scuba recommends that the same guidelines apply.

My regulator was breathing fine at the surface but got hard to breathe or stopped working at depth. Why?

This is caused from a restriction in the air passageway. Air at or near the surface is less dense than the air we breathe at depth. The less dense air flows past the restriction while the dense air at depth is unable to. The restriction is most likely caused by one of these two things:

  • The cylinder valve is not opened all of the way.
  • The regulator filter is partially clogged. This happens because of corrosion and particulate matter located in the cylinder. If the filter is partially clogged you must take the regulator and the cylinder in for service. If you were not using your personal cylinder it is very important that you notify the owner of the cylinder to have it internally inspected and to make sure that the valve has a dip tube in place.

Second section

Are XS Scuba Regulators compatible with nitrox?

XS Scuba regulators have been prepared for use with enriched air nitrox (EAN) where the oxygen percentage does not exceed 40% (EAN40).This is because the regulators are built to a high standard of cleanliness using EAN compatible parts and lubricant. If it is your intention to use your new XS Scuba regulator with EAN up to 40%O2, it is critical that you maintain the internal cleanliness of your regulator (see section on Care and Maintenance in the owner’s manual). If it is your intention to use your regulator interchangeably with breathing air, the breathing air should be “oxygen-compatible” or “hyper-filtered” whereas the condensed hydrocarbons in the air do not exceed 0.1mg/m3. Your local XS Scuba Dealer can help you determine whether the breathing air they provide meets this criterion. Standard compressed breathing air, often referred to as “Grade E” does not necessarily meet this criterion. Grade E breathing air may contain certain levels of hydrocarbons, including traces of compressor oils, that while not considered harmful to breathe, can pose a risk in the presence of elevated oxygen content. Passing hydrocarbons through a valve and regulator creates a cumulative effect where the hydrocarbons build up over time along the internal passageways of the equipment. When these hydrocarbons come in contact with high pressure oxygen enriched air, they can pose a very real hazard that can lead to combustion. Therefore, if a regulator has been used with Grade E breathing air, it should receive overhaul service, including hydrocarbon cleaning, prior to being put back into nitrox service. Although second stage components are not subjected to high pressure EAN, XS Scuba recommends that the same guidelines apply.

My regulator was breathing fine at the surface but got hard to breathe or stopped working at depth. Why?

This is caused from a restriction in the air passageway. Air at or near the surface is less dense than the air we breathe at depth. The less dense air flows past the restriction while the dense air at depth is unable to. The restriction is most likely caused by one of these two things:

  • The cylinder valve is not opened all of the way.
  • The regulator filter is partially clogged. This happens because of corrosion and particulate matter located in the cylinder. If the filter is partially clogged you must take the regulator and the cylinder in for service. If you were not using your personal cylinder it is very important that you notify the owner of the cylinder to have it internally inspected and to make sure that the valve has a dip tube in place.