The Festo 197576 throttle-check valve is a frictionless piston valve design made from zinc-casting chrome, with NBR seals and a 3mm orifice. It is designed to regulate pressure from 0.2 to 10 bar. This valve is intended to minimize excessive system pressure through a reliance on the force of gravity, allowing for precise output control and enhanced safety. It is most commonly used in hydraulic and pneumatic systems, air compressors, and various industrial applications, and is suited for varied liquids and gas, including water, mineral oil, and air with a temperature range of -10°C to +90°C.