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

Selling Points
- 1The HE-3-1/4-QS-1/4-U is a manually actuated pneumatic valve designed to provide reliable operation in various industrial settings. It ensures compliance with all specifications and general operating conditions, making it a trusted choice for process control and factory automation.
- 2This valve features a piston spool design, which enhances its vibration resistance and shock absorption capabilities. It has been tested according to FN942017-4 and EN 60068-2-6 standards, ensuring it can withstand severe conditions.
- 3The HE-3-1/4-QS-1/4-U valve adheres to ISO 13849-2 safety standards, ensuring that the relevant basic and well-tried safety principles are fulfilled. This makes it suitable for safety-related applications.
- 4Festo offers a wide range of pneumatic components, including valves, cylinders, and control systems. The HE-3-1/4-QS-1/4-U valve can be easily integrated into these systems, providing a comprehensive solution for industrial automation.
- 5The valve is part of Festo's extensive product portfolio, which includes various connection elements, filters, regulators, and other pneumatic components. This ensures that users can find all necessary parts from a single source, simplifying their purchasing process.
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 | 1/4 NPT | Pneumatic connection 2 | QS-1/4 |
Actuation type | Manual | Type of mounting | Optionally: Direct mounting via through-hole Direct fastening via thread |
Standard nominal flow rate | 340.2l/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:-:-] |
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 |
Material of screwed plug | Brass, nickel-plated | Note on materials | RoHS-compliant |
Seals material | NBR | Manufacturer ID | 153986 |
Specifications may be subject to change without notice