The"Tri-material" valve is a 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.

 

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.

 

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.