The new Model B7 High-Flow/High-Sensitivity Back Pressure Relief Regulator can be used in any high-pressure application that requires back pressure relief to avoid setting off a safety relief valve. Examples include hyperbaric chambers, air compressors, pressurized ballast tanks, high pressure testing, life support applications, manifold systems, tube trailers, gas transfer stations, etc. Like the earlier P7 valve, the B7 back pressure relief valve is available in ½- and 3/4-inch sizes with a brass or stainless steel body. The Model B7, which is designed to control inlet set point pressure levels between 10-1150 psig (.69-79.3 Barg), is also available in angle, globe and flow-thru configurations with end connection options of NPT, 300 lb. flanges, 600 lb. flanges and 1500 lb. flanges.