D01 Inlet platform. Stealth top profile, direct, load-stable piston actuation.
Inside the D01 Inlet architecture.
Direct piston command with three clearly defined flow levels.
Direct feed. Defined tactile response. Progressive airflow.
DRYSUIT SYSTEMS · INFLATION VALVES
LOAD-STABLE ACTUATION.
DUAL PORT STANDARDS.
DIRECT FEED. STABLE ACTUATION. CONTROLLED AIRFLOW.
The D01 Inlet Series is built around a compact 35 mm low-profile button with activation-safe design, based on a First-Generation Piston Architecture.
Direct, load-stable actuation and a firm mechanical break point support higher command fidelity across the usable stroke, while airflow develops through a smooth three-level ramp from 150 to 275 L/min.
A 360° swivel with stop keeps routing clean and torsion controlled within a compact, low-bulk Inflation platform.
D01 INFLATION
core features
D01 Inflation core features, built around compact integration, controlled Inflation response, and stable actuation.
First-Generation
PISTON ARCHITECTURE
First-Generation Piston Architecture. Direct, load-stable actuation with a firm mechanical break point.
Improved command fidelity across the usable stroke.
Inflation Range & Progression
mapped through the stroke with three flow levels.
360° SWIVEL WITH STOP
Near 360° swivel with stop for clean routing and controlled torsion.
LOW PROFILE
BUTTON INTERFACE
35 mm / 1.38 in
Stealth
TOP PROFILE
Durable, reinforced structure. Pentagonal design.
Engineered for broad drysuit integration
across established port standards,
with S-FIT / L-FIT configurations for clean, repeatable mounting
EXTENDED PLATFORM COMPATIBILITY
Engineered for cross-platform integration, the D01 Series supports standard drysuit platforms through two native configurations: S-FIT and L-FIT.
Port Fit
Configured for 34 mm (1.34 in) drysuit port openings.
CRAFTED FOR INFLATION.
SHAPED FOR CONTROL.
ITALIAN ENGINEERING.
PREDICTABLE CONTROL.
Each HYDPRO device is engineered and manufactured in Italy: one chain from raw material to release. Polymer families are selected for constant immersion, precision-drawn brass runs on in-house CNC lines, and every device leaves built, tested, and signed off under one roof.
Built to integrate. True to your setup.
Whatever the field runs, HYDPRO builds to it natively: every established mount standard, thread, and host geometry, covered from the factory. Your setup stays as it is, integration stays clean, and the response repeats: the same command, the same result, on every dive.
Proven by divers. Refined by decades.
Four decades in the water stand behind the current generation. What wears, what binds, what drifts out of tune comes back from real dives to the bench, and the next revision answers it. Control you can feel, refined one generation at a time.
