Pressure activated valve / locking mechanism

[aronnaxsea]

Does anyone know of a manufacturer of pressure activated valves?

I want the valve to activate at a depth of 2Mtrs and be able to survive submersion to 100Mtrs (fresh and saline water). The valve should release on ascent at a depth of 2Mtrs.

Thanks

Aron

 

[MikeHalloran]

Does the valve have to shut off the sea as it descends? Let in the sea? Switch a hydraulic circuit? I.e., what medium must the valve switch? Is it on/off (2 ports), or a selector valve (3 ports) or a directional valve (4 or 5 ports)?

Does it have to change position instantaneously at 2.000 meters? Could it change position gradually between 1.5 and 2.5 meters? Could it have a little hysteresis?

Does it ever come out of the water? Will it be flushed or serviced regularly? Will the valve be fully surrounded by water, or housed in a sealed container, i.e., will there be a pressure difference available for operating the valve, or will it need to have its own baroid?

Answer some of those question, and maybe someone will have an idea.





Mike Halloran
NOT speaking for
DeAngelo Marine Exhaust Inc.
Ft. Lauderdale, FL, USA