Owner`s manual

Dive Rite

Ch. 1 Pg. 2

Left Hand Valve This is the valve that would be operated by the diver

using his/her left hand based on a set twin cylinders with

a manifold. The knob is on the opposite side when

compared to a “normal” valve. This designation is NOT

universal with all valve manufacturers, consult the

appropriate product catalog when ordering valves.

Over Pressure Valve This valve is used to automatically vent excess gas from

the loop during ascent. This helps prevent excess

buoyancy changes and potentially dangerous loop over

pressure .

Oxygen Addition Valve This valve is used to MANUALLY add oxygen on a

CCR. This is used to manually raise the PO due to a

drop caused by metabolism or to raise the PO above the

selected set-point.

Mouthpiece The mouthpiece on a rebreather always incorporates

some type of valve to isolate the breathing loop from the

environment. The mouthpiece is frequently called a DSV.

And depending on who you ask it means either dive

select valve or dive surface valve. A variation of the DSV

sometimes called a BOV incorporates an integrated

demand valve as an alternate gas source while the loop

closed.

Rebreather This is a generic term referring to breathing system that

re-uses exhaled gas.

Redundant Breathing System A totally independent breathing system of sufficient

volume for the working depth. Sometimes called a “Pony

System”, carried for emergency / bailout situations.

Right Hand Valve This is the valve that would be operated by the diver

using his/her right hand based on a set twin cylinders

with a manifold. This is the traditional valve

arrangement. This designation is NOT universal with all

valve manufacturers, consult the appropriate product

catalog when ordering valves.

Scrubber (Canister) A chamber filled with a CO absorbent chemical through

which the exhaled gas is channeled to remove the expired

Carbon Dioxide. This can be in the form of either user