Groth Corporation manufactures pressure relief and emission control devices for use in refineries, chemical processing, wastewater treatment, and other facilities. It offers pressure/vacuum relief valves, deflagration and detonation flame arresters, pilot operated valves, emergency relief valves, waste gas burners, sediment traps, flame traps, check valves, drip traps, breather valves, conservation vents, blanket gas regulators, digester cover equipment, tank top appurtenances, test stands, and wastewater and biogas control processing systems.