The Hoke 6600 Series bleed valves are compact instrumentation valves designed for venting, draining, and pressure release functions in high-pressure gas and liquid systems. These valves feature a rugged forged body construction combined with a precision stem and seat design to provide reliable shutoff performance and controlled media discharge. The compact design allows easy integration into instrumentation manifolds, analyzer systems, and pressure measurement assemblies where safe system depressurization is required. Constructed primarily from 316 stainless steel, the series offers excellent corrosion resistance and long service life in demanding industrial environments. Multiple end connection configurations are available to support flexible installation requirements. Typical applications include gauge venting, calibration systems, drain service, sampling systems, and instrument isolation assemblies.