P04 Series Core, medium-profile architecture with Shield Technology for debris protection.
medium-profile overpressure relief architecture, with component geometry configured for Shield-protected operation in compact layouts. Compatible with P04 flanges.
- ① LID DESIGN – OPV P04
- ② SPRING DYNAMICS – CONIC COIL
- ③ PLATE PROFILE – SECTOR
- ④ GASKET TYPE – SLOT-FIT
medium-profile SHIELDED AGAINST DEBRIS EXPOSURE.
The P04 Series in Shield configuration extends relief architecture for buoyancy and inflatable systems built around the P04 interface. Shield Technology adds passive debris protection where external contamination exposure is more demanding. A protected medium-profile relief platform shaped for compact integration and clean release performance.
P04 Shield OPV
KEY FEATURES
Defined by Series interface, profile architecture, and platform function.
Sharp
TOP PROFILE
Clean-cut profile
Crisp geometry.
Conic Coil
SPRING GEOMETRY
Conical geometry maximizes packaging efficiency and extends usable stroke for higher flow within a lower profile valve design.
SECTOR
GASKET PLATE
Sector profile with increased clearance geometry for higher capacity.
SLOT-FIT
GASKET DESIGN
Slot fit gasket with dedicated knot pocket for compact, low profile assembly.
EXHAUST CAPACITY
Maximum exhaust capacity
Flange diameter ~45 mm / ~1.77 in Medium profile
Min collar height ~10 mm / ~0.39 in
Trapezoidal thread, 2.5 mm pitch
5-Ridge alternating interlock coupling section
PATENTED SYSTEM
Protection system engineered against particulates and debris.
ASSEMBLY & COMPONENT VIEWS
Complete assembly views and component breakdown.
Clean-cut profile Crisp geometry
AVAILABLE PULL KNOB OPTIONS
For OEM builds, multiple pull knob configurations are available at configuration stage, aligned with series supply.
BUOYANCY SYSTEMS · OVERPRESSURE RELIEF VALVES
CLEARANCE-DRIVEN DESIGN.
WIDE INTERFACE
COVERAGE.
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.
P04 Series Core, medium-profile architecture with Shield Technology for debris protection.
