Pressure Relief Valve:

Features: Full Ocean Depth Rating Ultra-Small Easily Adjustable Competitvely Priced

DeepSea's universal pressure relief valve can be used on instrument housings, battery packs, and other applications requiring venting. Made from titanium and measuring only 1.85cm (0.725 in.) diameter by 1.91cm (0.75 in.) overall length, this valve is rated to full ocean depth. The valve's release pressure can be easily adjusted, and can also serve as a vacuum purge port. A dry spring design is used; all wet parts are titanium. A high temperature version (up to 500 degrees F) is available.

Specifications:

Mechanical
Material: 6AL-4V titanium
Diameter:1.85 cm (0.725 in.)
Length: 1.91 cm (0.75 in.)
Air Weight: 11.7 g (0.42 oz..)
Threads: 7/16"-20, with O-ring face seal
 
Environmental
Depth Rating: 20,000 psi (full ocean depth)
Temperature: -20degC to 200degC (-4degF to 392degF) up to 500degF optional
 
Cracking Pressure
Setable 2 psi to 15 psi (or closed)


This chart shows pressure for # turns away from closed position and indicates the increase in setting from testing in Air (curve 1) to testing in Water (curve 2).