HYDPRO ADDITION VALVE D01 STEALTH
The Hydpro D01 Stealth is an advanced, low-profile drysuit inflator valve designed for demanding technical, cave, and recreational divers. It utilizes an innovative piston-based system that delivers unparalleled smoothness and a very high flow rate. Its streamlined "stealth" design minimizes the risk of snagging on underwater objects or harness straps. A 359° swivel mechanism ensures perfect low-pressure hose routing in any configuration.
The Hydpro D01 Stealth inflator valve is the result of years of experience from the Italian manufacturer. Unlike traditional valves based on a mushroom design, the D01 Stealth model utilizes an advanced piston system . This provides an exceptionally wide airflow and unique, progressive activation. This means the diver can control the amount of gas flow with exceptional precision and gradual control – from minimal pressure equalization in the suit to rapid, intensive inflation in emergency situations.
"Stealth" Design – Safety Within Restrictions. The name "Stealth" refers to the valve's unique, extremely low profile. The streamlined housing fits snugly against the suit, drastically reducing the risk of the hose becoming trapped or accidentally snagging on a lifeline, nets, caves, or wrecks. At the same time, the valve's rear has been designed with attention to anatomy and ergonomics – its perfectly flat shape optimally distributes pressure across the chest, ensuring complete comfort during long dives.
Intuitive operation in all conditions. The enlarged button allows for effortless valve activation, even in extremely cold water, with numb fingers, or while wearing thick, dry gloves. A special profile around the button provides a mechanical shield that effectively prevents the valve from being accidentally pressed by the chest harness straps.
Unparalleled durability – 181 laboratory tests! Hydpro doesn't compromise on safety. Before leaving the factory in Italy, the D01 Stealth series undergoes a grueling cycle of 181 rigorous tests . These tests verify the mechanical and physical resistance of components to extreme pressures, temperature changes, and the effects of aggressive environments (salt water, contaminants). The monoblock piston construction (one solid block of material) and the armored 359° rotation mechanism make it one of the most durable valves available on the global market.
Key features and benefits:
Unparalleled durability – 181 laboratory tests! Hydpro doesn't compromise on safety. Before leaving the factory in Italy, the D01 Stealth series undergoes a grueling cycle of 181 rigorous tests . These tests verify the mechanical and physical resistance of components to extreme pressures, temperature changes, and the effects of aggressive environments (salt water, contaminants). The monoblock piston construction (one solid block of material) and the armored 359° rotation mechanism make it one of the most durable valves available on the global market.
Key features and benefits:
- Piston System: High gas output combined with progressive, smooth dosing depending on the pressure applied.
- “Stealth” Profile: Minimalist, streamlined external shape that prevents snagging in tight spaces (caves, wrecks).
- Full 359° rotation: The solidly mounted swivel mechanism facilitates optimal positioning of the LP supply hose in Backmount and Sidemount configurations.
- Monoblock piston: Durability and reliability thanks to the core of the system being made from a single, unified structural element.
- Large button with cover: Easy to find and press with thick gloves; protected against accidental activation by diving equipment.
- Simplified maintenance: The valve design allows for easy, quick and trouble-free periodic servicing.
- Made in Italy: Product entirely designed and manufactured in Italy with the highest quality materials.
Rigorous quality control and certification:
Every Hydpro additive valve has a unique serial number for full traceability and undergoes uncompromising laboratory testing at the factory in Italy that goes beyond standard CE/EN standards.
Before leaving the production line, the DSV Inlet series is subjected to advanced strength and performance tests:
- Material fatigue testing: Multiple work cycles to test the resistance of moving parts to long-term wear.
- Breaking test up to 50 kg: Test of the mechanical strength of the body lock under strong tension of the LP hose.
- Pressure tests (20 and 30 bar): Guarantee of absolute tightness and no risk of spontaneous activation (free-flow).
- Extreme temperature tests (+70°C / -20°C): Testing the physical stability and ageing resistance of seals.
- Underwater inspection: Each individual unit undergoes an individual, final functional test underwater before being packaged.
Available versions and catalog designations:
The Hydpro Stealth valve is manufactured in two versions adapted to the diameters of the most popular mounting ports used in dry suits:
- DSV IN D01L Stealth – Addition valve designed for APEX standard port (larger diameter).
- DSV IN D01S Stealth – Addition valve designed for the Si-Tech standard port (smaller diameter).
Price: 308 zł
Available colors
HYDPRO ADDITION VALVE D01 STEALTH
Estimated, approximate amounts in other currencies are calculated based on NBP exchange rate table (098/A/NBP/2026 A) from 2026-05-22 and do not constitute part of the offer nor are they binding.
PLN
Polski złoty
308 zł
EUR
Euro
73 €
