Marsh Bellofram Corporation introduced the Type T289 industrial gas back pressure regulator. Type T289 offers dual functionality as a back pressure regulator and high-flow relief valve with an adjustable set point. It is effective in monitoring air, nitrogen, natural gas, propane and other industrial gases. The compact size allows its use in place of a standard relief valve for protection against over pressurization in the downstream system. With its large diaphragm area and integral Pitot tube booster, the regulator offers good response to excessive pressure relief requirements, particularly within low-pressure settings. The simple design enables high flow rates, throttling-type relief and tight shutoff. Optional regulator rebuild kits are also available.