OPV P01 Plus

Buoyancy Systems · Overpressure Relief Valves

OPV P01 Plus

Combines standard-profile relief geometry with a higher-capacity internal exhaust architecture delivering 550 L/min, with native compatibility across the P01 Series flange family.
Lid Design
Relief setting (Cracking Pressure):

CONFIGURATION

Pull knob
Type-C

Nominal opening pressure
≈ 0.18 bar (2.61 psi)

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OPV P01 Plus overpressure valve in profile, ribbed fin-like lid linked to an elbow fitting by a hose
  • OPV P01 Plus overpressure valve in profile, ribbed fin-like lid linked to an elbow fitting by a hose
  • Front view of the OPV P01 Plus cap showing its deeply fluted ridge rim and gear-like vent cutouts
  • OPV P01 Plus exploded view: fluted lid, coil spring, wider notched valve seat disc and clear washer
  • OPV P01 Plus mounted on a drysuit inflator bladder, fluted dial and HYDPRO branding ring visible
  • Angled view of the OPV P01 Plus installed at the bladder corner, hose barb and ribbed seam visible
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus overpressure valve in profile, ribbed fin-like lid linked to an elbow fitting by a hose
  • Front view of the OPV P01 Plus cap showing its deeply fluted ridge rim and gear-like vent cutouts
  • OPV P01 Plus exploded view: fluted lid, coil spring, wider notched valve seat disc and clear washer
  • OPV P01 Plus mounted on a drysuit inflator bladder, fluted dial and HYDPRO branding ring visible
  • Angled view of the OPV P01 Plus installed at the bladder corner, hose barb and ribbed seam visible
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus
  • OPV P01 Plus

OPV P01Plus Series

Standard-profile with Plus exhaust architecture for higher dump capacity.

OPV P01 Plus: 550 l/m exhaust, Ridge/Elite/Stone profile options, base coil spring, 53mm 8-ridge interface

Specifications

Standard-profile. Extended dump capacity

The P01 Series in PLUS configuration extends the standard-profile relief platform for buoyancy and inflatable systems built around the P01 interface. It adds a higher-capacity exhaust configuration within the same platform, increasing usable dump capacity while preserving the established integration format. A higher-capacity evolution of the established P01 relief layout.

 Full technical specs (PDF)

Interface architecture. Defined by Series.

Each OPV Series is engineered around a dedicated flange geometry, defining fit, sealing and retention at the buoyancy-device boundary. Lid design and valve configuration vary within the Series; compatibility follows the interface geometry.

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.

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.
HYDPRO power unit manufacturing: CNC machining, hand assembly, and the finished valve underwater

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.

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