306 Trident Combination Vent

The Trident provides three-way venting plus overturn protection. It is designed to provide the pressure-actuated emergency venting plus inbreathing (vacuum) and Outbreathing (pressure). The Trident can be disassembled for cleaning. The pressure-actuated emergency venting has been flow tested and marked in accordance with D.O.T. MC306 Para. 178.341-4 N.F.P.A. 385 Para. 2263, and N.F.P.A. 407 Para. 616.

Product Details

Part No.Vent AssemblyBodySeatWt.
6131ALVAluminum with StainlessAluminumViton2.0
6131SSVStainless 316StainlessViton4.5
Thru AreaCapacity
Inbreathing Vent0.44 sq. in.1750 cu. ft. hr. @ 1 psig
Outbreathing Vent0.44 sq. in.3285 cu. ft. hr. @ 3 psig
Pressure Actuated Emergency Venting
Rated Capacity @ 5 PSIG - 10,000 Cu. Ft. Hr.
Note: To provide a proper load on disc, spring should be loaded to a length of 1 5/8 inches.