The Varec Biogas 440 Series Pressure Relief 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 Varec Biogas 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.
Flow curves are provided to assist you in selecting the proper size unit for your application requirements. In addition, Varec Biogas’s applications engineering staff and factory-trained representatives are always available to assist you.