Protectoseal Series 17800 Pipe-Away Pressure Relief Vent is intended for use where pressure relief is required and the relieving vapors must be piped away and not emitted into the atmosphere. It may also be used for vacuum relief. A pallet in the vent housing opens and closes permitting relief necessary to avoid tank damage. A flanged side connection is provided for easy pipe-away of vapors eliminating the emission of vapors to the atmosphere.

• Certified flow curves validating flow characteristics of unit
• Certified test report verifying specified settings and leakage performance
• “Air-cushion” pallet design for low leakage performance of no more than 1 SCFH at 90% of the set pressure
• Pallet assembly guides and center pallet stem guide to ensure proper alignment of pallet assembly on the seat and smooth lifting and reseating action
• Automatic condensate drainage design to mitigate freezing, binding and clogging
• Swing-bolt design facilitating inspection and easy maintenance
• Serialized unit and associated weights for easy identification and traceability
Datasheet