E01 Series Core, compact single-interface architecture integrating air admission, manual exhaust, and overpressure relief.
A compact integrated valve solution for inflatable applications, designed to concentrate multiple functions within a single installed unit. The result is a cleaner layout with fewer external components and a reduced external footprint
ONE PORT. THREE FUNCTIONS.
The E01 Solo Series defines a compact integrated valve platform for buoyancy and inflatable systems built around the E01 interface. Patented Solo Port Technology combines inflation, manual exhaust, and overpressure relief through a single external interface while keeping internal flow paths separated. A compact integration solution built for clean system layout and dependable functional control.

E01 OCV
KEY FEATURES
Defined by Series interface, profile architecture, and platform function.
Solo
TOP PROFILE

Tri-sector geometry
Conic Coil
SPRING GEOMETRY

Conical geometry maximizes packaging efficiency and extends usable stroke for higher flow within a lower profile valve design.
EXHAUST CAPACITY

Maximum exhaust capacity

Flange diameter ~35 mm / ~1.38 in Low profile
Min collar height 8 mm / ~0.31 in
Fine, 1.75 mm pitch
Cylindrical coupling section.
PATENTED SYSTEM

Patented Solo Port Technology, engineered to combine inflation, manual exhaust, and overpressure relief in a single device.
AVAILABLE SYSTEM CONFIGURATIONS
The E01 Solo Series is available in different system configurations, each defining how the platform is equipped for specific inflatable layouts and operating paths. Type E, Type F, and Type G introduce distinct end configurations, including Pull Mouthpiece options and metal alloy QDC integration where required.
BUOYANCY SYSTEMS · OVERPRESSURE CONTROL VALVES
INTEGRATED CONTROL.
PATENTED SOLO PORT TECHNOLOGY.
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.
E01 Series Core, compact single-interface architecture integrating air admission, manual exhaust, and overpressure relief.