grla-3/4-b
Product ID:2271
Updated: 2026/4/3
Key Features
- 1Control exhaust air precisely with the GRLA-3/4-B one-way flow valve. 2、Integrate easily using standard G3/4 pneumatic connections. 3、Adjust performance via the slotted head screw element. 4、Operate reliably from -10 °C to 60 °C. 5、Ensure safety in ATEX zones 1, 2, 21, and 22.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Valve function | Exhaust air flow control non-return function | Pneumatic connection 1 | G3/4 |
| Pneumatic connection 2 | G3/4 | Adjusting element | Slotted screw |
| Type of mounting | Screw-in | Standard nominal flow rate in flow control direction | 4320l/min |
| Standard nominal flow rate in non-return direction | 3220l/min 4320l/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 | 7300l/min |
| Standard flow rate in non-return direction at 6 -> 0 bar | 5440l/min 7300l/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 |
| Max. tightening torque | 60Nm | Product weight | 377g |
| Note on materials | RoHS-compliant | Seals material | NBR |
| Hollow bolt material | Wrought aluminum alloy | Material of adjusting screw | Brass |
| Nut material | Wrought aluminum alloy | Swivel joint material | Die-cast zinc |
| Manufacturer ID | 151180 |
Specifications may be subject to change without notice