grla-1/4-pk-4-b
Product ID:2266
Updated: 2026/4/3
Key Features
- 1Ensure reliable non-return function in pneumatic systems. 2、Integrate easily with push-in fitting design. 3、Adjust flow precisely for customized application performance. 4、Prevent backflow with piloted non-return valve design. 5、Access a reliable solution from Festo's comprehensive valve range.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Valve function | Exhaust air flow control non-return function | Pneumatic connection 1 | For barbed fitting, inside diameter 4 mm, with union nut |
| Pneumatic connection 2 | External thread G1/4 | Adjusting element | Slotted screw |
| Type of mounting | Screw-in | Standard nominal flow rate in flow control direction | 260l/min |
| Standard nominal flow rate in non-return direction | 220l/min 260l/min | Ambient temperature | -10°C 60°C |
| Maritime classification | See certificate | Explosion prevention and protection | Observe the information on the certificate Zone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX) |
| Mounting position | Any | Symbol | 00991452 |
| Operating pressure for entire temperature range | 0.3bar 10bar | Standard flow rate in flow control direction 6 -> 0 bar | 370l/min |
| Standard flow rate in non-return direction at 6 -> 0 bar | 315l/min 370l/min | Operating medium | Compressed air as per ISO 8573-1:2010 [7:4:4] |
| Information on operating and pilot media | Operation with oil lubrication possible (required for further use) | LABS (PWIS) conformity | VDMA24364-B1/B2-L |
| Cleanroom class | Class 4 according to ISO 14644-1 | Temperature of medium | -10°C 60°C |
| Nominal width | 6mm | Max. tightening torque | 11Nm |
| Product weight | 44g | Material of screwed plug | Wrought aluminum alloy |
| Note on materials | RoHS-compliant | Seals material | NBR |
| Material of adjusting screw | Brass | Swivel joint material | Die-cast zinc |
| Manufacturer ID | 151173 |
Specifications may be subject to change without notice