Festo HE-2-QS-1/4-U On/Off Valve: Reliable Pneumatic Solutions

Selling Points

1The Festo HE-2-QS-1/4-U is a manually actuated on/off valve designed for precise control in pneumatic systems. It ensures reliable operation under various conditions.
2This valve features a piston spool design, providing high vibration resistance and shock absorption, making it suitable for demanding applications.
3The HE-2-QS-1/4-U complies with ISO 13849-2 safety standards, ensuring adherence to well-tried safety principles and common cause failure measures.
4The valve is designed for transport applications and has undergone rigorous testing to meet severity levels 2 in accordance with FN942017-4 and EN 60068-2-6.
5The HE-2-QS-1/4-U is a well-tried product for safety-related applications, ensuring its suitability for precise applications when used as intended and within specified limits.

Detailed engineering parameters based on manufacturer documentation

Parameter	Value	Parameter	Value
Valve function	2/2 bistable	Pneumatic connection 1	QS-1/4
Pneumatic connection 2	QS-1/4	Actuation type	Manual
Type of mounting	Optionally: Direct mounting via through-hole Line installation	Standard nominal flow rate	306.9l/min
Nominal width	3.2mm	Operating pressure	-0.95bar 10bar
Ambient temperature	0°C 60°C	Housing material	PBT-reinforced
Operating medium	Compressed air as per ISO 8573-1:2010 [7:-:-]	Sealing principle	Soft
Mounting position	Any	Structural design	Piston gate valve
Type of control	Direct	Flow direction	Reversible
Symbol	00997328	Information on operating and pilot media	Operation with oil lubrication possible (required for further use)
Corrosion resistance class (CRC)	2 - Moderate corrosion stress	LABS (PWIS) conformity	VDMA24364-B1/B2-L
Cleanroom class	Class 4 according to ISO 14644-1	Temperature of medium	0°C 60°C
Product weight	23g	Note on materials	RoHS-compliant
Seals material	NBR	Manufacturer ID	153981

Specifications may be subject to change without notice