Product Model
he-3a-1/4-qs-1/4-u

Selling Points
- 1The Festo HE-3A-1/4-QS-1/4-U is a well-tried component that adheres to relevant basic safety principles, ensuring high reliability in safety-related applications.
- 2This pneumatic valve features a piston spool design, offering excellent vibration resistance and shock resistance, making it suitable for demanding environments.
- 3The valve is designed with a 3/2 double solenoid function, allowing for precise control and selection of additional functions such as exhaust.
- 4The HE-3A-1/4-QS-1/4-U is manually actuated, providing easy operation and control in various applications, including transport and industrial settings.
- 5This product is part of Festo's comprehensive range of pneumatic valves, ensuring compatibility with a wide range of pneumatic systems and applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Valve function | 3/2, bistable | Selection of additional function | with exhaust function |
Pneumatic connection 1 | QS-1/4 | Pneumatic connection 2 | 1/4 NPT |
Actuation type | Manual | Type of mounting | Optionally: Direct mounting via through-hole Direct fastening via thread |
Standard nominal flow rate | 382.5l/min | Nominal width | 3.3mm |
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:-:-] |
Exhaust air function | Without flow control option | Sealing principle | Soft |
Mounting position | Any | Structural design | Piston gate valve |
Type of control | Direct | Flow direction | Non-reversible |
Symbol | 00997329 | 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 | 35g | Pneumatic connection 3 | Not ducted |
Note on materials | RoHS-compliant | Seals material | NBR |
Manufacturer ID | 190872 |
Specifications may be subject to change without notice