Recreational Equipment
All students of I Dive Tec Rec Centers Plc get a 20% discount on all equipment
EQUIPMENT CONFIGURATION
The Mares 42 Metal regulator is Mares' lightest and most compact metal regulator. The high performance Mares MR42T first stage, is combined with an all metal second stage, for minimum weight and size.
- Super-Compact First Stage
- All Metal 2nd Stage
- Minimum Breathing Effort
New tri-material valve withsuperior durability
- Equipped with the revolutionary new tri-material valve
- HP and LP ports arranged for optimum hose placement
- Light and compact Proton Metal second stage
- VAD system provides natural breathing
- Easy to use oversized purge button
Features
- Tri-Material Valve
- VAD (Vortex Assisted Design) Technology
- All Metal Technology
- DFC (Dynamic Flow Control)
- CDW (Cold Water Diving) Dry Kit
- Mesh-Grid Second Stage Diaphragm Cover
Tri-Material Valve
The "Tri-material" valve is a Mares patented innovation, conceived and created to optimize performance, safety, and reliability over time for Mares MRT first stages. During operation, the high-pressure valve is subjected to various stresses. In traditional valves, these stresses, combined with extreme usage conditions, can cause premature wear of the valve with a consequent drop in reliability, performance, and safety.
After careful study of the forces involved, the pressures that act on the surfaces of the valve, and the usage conditions to which it is subjected, Mares has created the new "Tri-material" valve (brass, soft polyurethane, and "heavy duty" polyurethane), found today on all Mares MRT first stages. This innovative technical solution guarantees maximum performance, safety, and durability for Mares first stages.
VAD
All Mares second stages offer the unique, patented, VAD system (Vortex Assisted Design). This unrivaled system eases breathing at all depths. The working principal is very simple. As air comes from the hose, it passes into the second stage and is conveyed directly to the mouthpiece through the by-pass tube.
A "vortex" is created in the airflow as it enters the mouthpiece. In the center of this swirling air is an area of a low-pressure. This low pressure helps keep the second stage diaphragm down during inhalation, thus increasing the regulator's sensitivity and minimizing respiratory effort.
Regulators with the VAD system, offer improved performance and allow for very natural and comfortable breathing. One of the main causes of ice forming in regulators is the expansion of air inside the second stage case, which causes an abrupt drop in temperature. With the VAD system, air expands inside the by-pass tube and mouthpiece, reducing the likelihood of icing.
All Metal Technology
Mares is the only manufacturer in the world to offer a complete range of regulators with the second stage cases produced entirely in metal; anti-corrosion nickel and chrome-plated brass. In cold water, metal second stages have superior performance and are safer than second stages manufactured in plastic materials, thanks to the high thermal conductivity that limits the freezing effect.
When inhaling, compressed air from the first stage expands inside the second stage and creates an abrupt drop in the temperature of the air, which in cold water can drop to a few degrees above freezing. This situation, along with the natural humidity inside the second stage, can cause ice crystals to form, and when on the demand lever, can result in small air leaks and then trigger free-flow.
Metal is a good conductor of heat, and makes the water surrounding the second stage act as a heating element for the air inside and prevents this opportunity for free-flow. Strange as it may seem, even at temperatures very close to the freezing point, the water is still warmer than the air expanding inside the second stage.
Additional benefits of "All Metal" Mares second stages are: - Improved resistance to harsh conditions, rough treatment, and abrasion - Longer working life of the product - Less dry mouth, because the humidity of exhalations condenses on the inner walls of the metal second stage and moisturizes every breath.
Dynamic Flow Control
Mares first stages are equipped with the exclusive DFC system, making it possible to minimize intermediate pressure drop during inhalation, demonstrably improving the regulator's performance in every condition, including high demand situations. This means that the regulator remains easy to breathe with, especially when you need it the most.
The DFC system, by guaranteeing more stable intermediate pressure, makes it possible to use simpler, more reliable second stages. Mares regulators do not require any type of manual adjustment of the second stage, thanks to the consistency derived from first stages that guarantee a stable flow of air, even under extreme conditions.
Cold Water Diving Dry Kit
The CWD Dry kit, unlike the CWD kit, works dry, with air only and absolutely no oil. The external pressure is conveyed to the main diaphragm by a metal piston. Air, one of the best insulators, offers excellent thermal protection to the internal components of the first stage. The absence of oil makes maintenance simpler and faster. The CWD Dry kit is currently available only for the MR42T first stage.
Mesh-Grid
The mesh design of the second stage cover reduces the pressure of water flowing onto the second stage diaphragm and minimizes free-flow, even in strong currents (patented).
Specification
- First stage weight: 646g INT/452g DIN
- Second Stage Weight: 243g
- CWD (Cold Water Diving) kit - Dry System (Air insulated not oil)
- Balanced diaphragm design
- Number of HP ports: 2 HP 7/16" UNF ports
- Number of LP ports: 4 LP 3/8" UNF ports
- Inhale pressure: 10.92
- Exhale pressure: 6.19
- Ext work of breathing: 0.67
- Inhale Work: 0.27
- Pos inhale work: 0.03
- Exhale work: 0.40
- Volume depth of test: 50.5 msw (166 fsw)
- Special characteristics: Certified to meet the EC Mark requirements in compliance with Directive 89/686/EEC reference standard UNI-EN250
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