Deliver to
United Kingdom
The Festo HB-1/2-QS-12 is a threaded pneumatic non-return valve that controls airflow in one direction while blocking reverse flow. It is commonly installed in compressed air systems where backflow could affect performance, pressure stability, or component safety. With an operating pressure range from -1 to 10 bar, it fits well into standard industrial pneumatic setups. This valve is designed for practical use in everyday automation systems, not complex control logic.
The valve allows air to pass freely in one direction and automatically closes when pressure tries to flow in the opposite direction. This helps protect cylinders, valves, and air lines from unwanted back pressure.
It is especially useful where maintaining airflow direction is critical to system behaviour.
For more information please check the datasheets.
Basket Total:
£ 0.000
