The FDX-10 Over-Balanced Diaphragm First Stage is forged from marine-grade brass, the FDX-10 features optimised air paths and angled hose ports for superior performance and comfort. A sealed Balanced Diaphragm design, Environmental Kit and patented DVT (Dry Valve Technology in combination with yoke connection only) isolate all internal components from the environment. Two high pressure and four low pressure ports allow convenient and comfortable hose routing.
The FDX-10 high performance over-balanced first stage provides progressively greater intermediate pressure as depth and gas density increases. The center "pads” that the diaphragms act against are different sizes so the working area of the outer environmental diaphragm is larger than the working area of the inner diaphragm. As depth increases, more pressure is applied to the larger surface area of the outer diaphragm than would be applied to the internal diaphragm. The result is superior gas delivery under the most extreme conditions.
DVT (Dry Valve Technology): Ever wonder why they call it a "dust cap" and not a water cap? Most dust caps are not designed to keep water from entering your first stage. Regardless of how carefully you may maintain your regulator, water entry is a much more common problem than most divers realize. DVT is a revolutionary regulator technology designed to automatically eliminate moisture and contaminants from entering your first stage, even if the dust cap is accidentally left off. DVT eliminates corrosion of critical internal components, bacteria, hose deterioration, and damaged gauges and computers.
