The festo non-return valve HB-1/4-QS-8 Flow rate from the QS plug connector to the male thread. It has operating pressure –1 to 10 bar. The operating medium compressed air in accordance with ISO 8573­1:2010. The peration with lubricated medium possible (i Valve function Non-return function
Pneumatic connection, port 1 QS-8
Pneumatic connection, port 2 R1/4
Mounting type Threaded
Standard nominal flow rate 696 l/min