The Non-Return Valve is a fundamental safety component designed for in-line installation on the flexible rubber hose of a drysuit's P-valve.
This small but crucial accessory allows fluids to pass in only one direction—outward from the drysuit—absolutely and mechanically preventing any type of backflow. It is the ideal solution for increasing the safety of the drain system, protecting the diver from potential infections or the annoying return of air or liquids along the line.
Key Features and Technical Specifications:
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Absolute Unidirectional Flow: Allows for natural and effortless drainage outwards, instantly blocking any reverse pressure or accidental backflow towards the diver's body.
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Direct Application on Rubber Hose: Designed for easy insertion by cutting and connecting the standard flexible rubber or silicone hose of the P-Valve. The connection diameters ensure a stable and secure pressure seal.
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Reliable and Compact Mechanism: Made with high-quality inert plastic materials and resistant membranes that are unaffected by salinity or acidity, maintaining consistent opening and closing sensitivity over time.
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Miniaturized In-Line Profile: The extremely lightweight and compact structure integrates perfectly under the undersuit without creating excessive bulk, rigidity, or annoying pressure points during movements while diving.
Target Users:
The P-Valve Non-Return Valve is a highly recommended upgrade or replacement for all technical or advanced recreational divers who use drysuit drain systems (both with male catheters and She-P systems). It represents essential additional hygienic safety for those who undertake long dives and want to eliminate the risk of backflow in the drain line.
