All Navy SEALs are required to undergo specific and required training in various types of scuba equipment. They will use this scuba equipment based on the specific Navy SEALs missions. The three most commonly used types of scuba equipment among Navy SEALs are: the open circuit system, the closed circuit oxygen system, and the closed circuit mixed gas system.
The open circuit system is the most used variety of scuba equipment used by Navy SEALs. This is a standard breathing apparatus where a SEAL will take in air from a tank that they are wearing. This type of scuba equipment is generally seen being used by amateur scuba divers.
A closed circuit oxygen system is very different than an open circuit system. This type of system causes the user to breath in 100% oxygen. When it is exhaled inside the breathing apparatus the oxygen is filtered and turned into air that is breathable. This type of scuba equipment will generally be used by the Navy SEALs when they are operating in shallow water or in very cold water. But when diving using this type of scuba equipment a Navy SEAL will also have to wear a dry suit.
The closed circuit mixed gas system works just like the closed circuit oxygen system, only the oxygen in this type of scuba equipment is mixed with air to create a specific partial pressure of oxygen level. This type of scuba equipment is used when a Navy SEAL will be in great depths of water. Using this type of oxygen tank also allows the Navy SEAL to stay underwater for longer periods of time.
September 14th, 2009 - 8:14 pm
This is cool!
I am the editor of a mag based in Singapore.
Would love to do a story on this…do you have more images in hi res for publication? Or are you interested in writing an article on this for our magazine?
Let me know please!
Best,
Diego
September 15th, 2009 - 11:53 pm
When it is exhaled inside the breathing apparatus the oxygen is filtered and turned into air that is breathable. This type of scuba equipment will generally be used by the Navy SEALs when they are operating in shallow water or in very cold water. But when diving using this type of scuba equipment a Navy SEAL will also have to wear a dry suit.
Please STFU You clearly know nothing about diving draeger.
December 8th, 2009 - 11:29 pm
[...] are taught two types of scuba, open circuit using compressed air bottles and closed circuit, using specialized oxygen [...]
August 18th, 2011 - 12:36 am
To whom it may concern:
We, as a import company in Korea, are looking for a supplier or manufactur who can supply for the following item export to ROK Marine:
If you can supply, please send us a quote, if you are not in a position to supply then would you kind direct us who should we contact for further?
We are looking for your respond as as soon as possible.
Thanks
Commodity Description
1. Features
That when searches or handles mine and explosive EOD agent use Semi – Closed Circuit UBA mixing gas breath equipment
2. Specification
2.1. Components
2.1.1. Semi Closed Circuit UBA Main body(1ea)
2.1.2. CO2 Scrubber(1ea)
2.1.3. Mixed Gas Cylinder(Include a Reserve)(3ea)
2.1.4. Pressure regulator (1ea)
2.1.5. Breathing bag(1ea)
2.1.6. Buoyancy Compensator(Include a Cylinder)(1ea)
2.1.7. Emergency Breathing Regulator(Include a Cylinder)(1ea)
2.1.8. Full face mask with adaptor
2.2. Magnetic signature of UBA : NATO STANAG 2897 “A”
2.3. UBA Housing Dimension (H x W x D): 720 x 400 x 500 mm or Less
2.4. UBA Weight : 35kg or Less(40kg or Less at 55m or More dive)
* In Air, With cylinder and sodalime filled CO2 scrubber)
2.5. Breathing Gas : NATO Standard gas mix B / C / D or More
2.6. Cylinder capacity :
2.6.1. Non magnetic
2.6.2. 4 Liter or more
2.6.3. 200 bar or More
2.7. Breathing bag : 4.5 Liter or More11 – 4
2.8. Back worn type. (Chest worn type is not allowed)
2.9. Operation method : Demand and Constant mass flow
* Electronic control systems is not allowed
2.10. In case of malfunction of system or urgency, the diver could bailout as SCUBA using emergency breathing regulator
2.11. Operational depth : More than 55m in sea water
2.12. Operational temperature : In air, -2℃ ~ 40℃ / Underwater, 0℃ or more
3. Scope of Supply
3.1. Main Equipment 21 SET
3.2. Carrying & Storage case 21 SET
* The carrying case should be non magnetic hard case type for protecting the equipment, and the storage case should be non magnetic and well ventilated
3.3. Flow Meter(Potable) 6 SET
3.4. Portable Gas(O2 or others) Analyzer, Sensor(spare) 6 SET
3.5. O2 compatible grease(MCG 111, 2oz tube) 21 EA
3.6. Latex gloves(100ea 1pack) 6 PACK
3.7. CO2 absorbent 420 kg
* Absorbent should be packed in small airtight container and weight of each container should be less than 20 kg.(eg.11kg container x 39 EA / 18kg container x 24 EA)
3.8. Breathing bag, inhale/discharge part disinfectant 21 SET
3.9. Supersonic washing, electronic type 6 SET
3.10. Portable Computer for Semi-closed circuit UBA 21 SET
3.11. Non magnetic weight(Lead/2kg×6ea, 1kg×2ea) 21 SET
3.12. CSP(for Organizational and Intermediate Maintenance) EACH 21 SET
3.13. Organizational/Intermediate Maintenance tool kit
and test gage, General/Special Tool EACH 6 SET
3.14. Operation & Maintenance, Part manual(Book and CD in English&Korean)
EACH 6 SET
* Operation, Maintenance, Part manual should be translated into Korean language by supplier and should be shipped with main equipment.
* Including Troubleshooting guide & Circuit diagram, Drawing for
Organizational, Intermediate and Depot level Maintenance