The PHS-300 Air Operated Hydrostatic Power Units work with either water or oil. These self-contained units are compact and robust and operate at 300 bar. They come complete with air filter, regulator, lubricator, air/hydraulic pressure gauges, outlet pressure connection block, release valve and interconnecting pipework. The equipment is mounted inside a stainless steel frame and the power unit is ideally suited to hydrostatic testing, operation of hydraulic valve actuators, clamping and tensioning tools.