416158 - Abyss 22 Navy
For extreme emotions
• CWD Kit for extreme temperature
• High performance in cold water
• Second stage with fluoropolymer resin finish
The new Abyss 22 Navy is the Mares answer for your challenge in every condition. With careful analysis and evaluation of what happens in cold water, Mares has designed an exclusive product accurately studied to guarantee top performance and reliability under the toughest conditions, including diving under the ice. The higher heat exchange capability and superior ruggedness of rubber makes it the preferred choice for hose material in this application.
First stage: Balanced diaphragm design
Lightweight yoke: Yes
First stage weight (g) INT: 850
First stage weight (g) DIN300: 666
Second stage weight (g): 269
Total weight (g) INT: 1338
Total weight (g) DIN300: 1151
Second stage dimension: Compact
Oil/Dry cold water kit: Oil
HP Ports: 2 HP 7/16' UNF ports
LP Ports: 1 LP 1/2' UNF port (primary)
Inhale pressure: 9.87 mbar
Inhale pos pressure: 3.43 mbar
Exhale pressure: 6.98 mbar
Ext work breathing: 0.96 J/l
Inhale work: 0.31 J/l
Pos inhale work: 0.03 J/l
Exhale work: 0.65 J/l
Pressure depth: diagram at 50m (165ft)
All Metal Technology: Outstanding mechanical resistance and high thermal conductivity make our metal 2nd stages extremely long lasting and ideal for cold water dives. The high thermal conductivity of metal reduces the dry mouth feeling during the dive.
Dynamic Flow Control: Minimizes intermediate pressure drop during inhalation thus maximizing gas delivery, especially under extreme conditions. The DFC system (Mares patented) minimizes the pressure drop that occurs in all regulator first stages when the diver inhales. This phenomenon is even more pronounced as depth increases and when airflow demand from the regulator rises.
The DFC system is an exclusive system, unique on the market, that operates in relation to the diver's actual air demand, independent of depth and tank pressure.
The DFC system uses the Venturi Effect, optimizing the regulator's sensitivity and minimizing inhalation resistance, especially during dives in extreme conditions.
Mesh Grid: Patented design which reduces the impact of water flow onto the second stage diaphragm, thus eliminating free flows even in strong currents.
Tri-Material Valve: Patented technology combines two grades of polyurethane on a brass core. Maximizes performance, safety and reliability.
It is composed of: a central valve body manufactured in nickel-plated brass; a highly-resistant polyurethane coating covering nearly the entire valve body that can ensure elevated resistance to wear and mechanical stresses; finally, an additional covering is applied to the surface ('head') of the valve; this covering is also polyurethane but has a softer 'modulus'(hardness) to provide a perfect seal, even under extreme conditions.
Thanks to the use of a special technology ('adhesion at the molecular level') and the characteristics of the materials used, a high level of safety (uncontrollable free flow never occurs) and reliability is guaranteed under any conditions.
Vortex Assisted Design: The air bypass tube conveys air to the mouthpiece creating a swirling vortex with a low pressure area in the center that keeps the diaphragm down during inhalation, for very sensitive and easy breathing at all depths.
The air coming from the LP-hose passes through the second stage control valve and is conveyed directly to the mouthpiece through the by-pass tube (Mares patented). In the mouthpiece connector, the airflow creates a swirling action, or “vortex”. The core of the vortex is a low-pressure area, which, during inhalation, helps to hold down the second stage diaphragm, thus markedly increasing regulator sensitivity. The decisive advantage of the VAD System lies in the precision of its control. The VAD supplies the inhalation effort with just the intensity required.
Another advantage of the VAD system is related to the bypass tube, through which most of the air is delivered. In cold water diving, this system prevents ice crystals (which can be generated by the expansion of humid air in cold temperatures) from interfering with the proper operation of second stage components.
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