FESTO Pneumatic Valves Check valve 611020 - FESTO 153469, The Festo Check Valve 153469 is designed for use with pressures ranging from -0.95 to 10 bar. Manufactured by Festo, this component ensures unidirectional flow, maintaining system efficiency and safety. It is typically utilised in pneumatic applications to prevent backflow and maintain pressure stability. FESTO 153469 Check valve HE-2-QS-10 -0.95 to 10 bar 1pc