The Fisher CP400 series pressure-loaded regulators are designed for a variety of pressure-reduction applications including light industrial and commercial equipment, the latter including precise control in pressure-coefficient measurement (fixed-coefficient charging) applications. Great flexibility is provided because the regulator offers a variety of valve body end connection sizes, valve body material, outlet pressure Settings, valve hole sizes, and internal or external pressure options. In addition to application flexibility, the CP400 series also offers a variety of overvoltage protection options to meet your application requirements.