Pressure Relief Valves maintain a low differential pressure and reduce the risk of injury in systems that incorporate internal components which off-gas or other sources of pressure buildup that can create a dangerous high internal pressure situations. Our Pressure Relief Valves fit in a Standard #4 SAE Port* (Same as PREVCO Dual Seal Vent Plug) These pressure relief valves are available from stock in both Titanium and Inconel, both of which are high-specification materials suitable for a wide variety of high-stress and corrosive applications.

You might also be interested in our Debris Blocker which is designed as a sticker, featuring a finely woven Stainless Steel filter, which is affixed to the interior of the endcap opposite the PRV.  Should the valve activate, the filter serves to eliminate any dirt or particles that might otherwise flow through the valve and potentially lead to its failure.  While these are optional, at a cost of $10.00 each, it could be an additional safety feature you might consider?  https://prevco.com/shop/pressure-relief-valves/debris-blocker-for-prv/

Technical Specifications

Features

• Inconel 625
• Safety Feature for Pressure Vessels
• Limits Catastrophic Blowout of Endcap during Dis-assembly
• Especially important when batteries or off-gassing components are enclosed
• Relieves at - 10psi differential
• Dual main interface seals
• 6000m operating depth
• Fits in standard #4 SAE interface port
• See interface control drawing in link below for mounting interface

Components

• Inconel 625 for all parts exposed to sea water
• Viton O-rings as standard

Resources

• Interface Control Drawing
• Part number: 01104-003