Burling Valve is a manufacturer of process pressure regulators. Differential, back pressure and pressure reducing regulators are used in every industry and Burling Valve produces quality products with best in class performance and customer service. Whether you need to control the pressure of noble gases, corrosive gases or liquids, the Burling pressure regulators can be built from 1/4" to 6" flange mount and in a variety of materials. All Burling regulators are 100% manufactured in the USA and we are determined to quote faster and ship faster than our competitors.