Overview

The 440 Series Pressure Relief and Flame Trap Assembly combines the 386 Series Back Pressure Relief Valve and the 5010 Series Flame Arrester with a thermal shut-off bypass valve integrated into the unit. The wide range of sizes allows its use in many applications encountered in the typical tank farm, liquid storage facility or biogas control lines.

The 440 Series is designed to control upstream pressure while protecting vapor recovery systems and waste gas piping systems from flashback fires. The assembly should be installed just upstream of a waste gas burner, in a horizontal section of pipe.