Festo GRA-1/4-B
One-way check valve
Festo GR
| Valve function | One-way flow control function |
| Standard nominal flow rate in flow control direction | 420 l/min |
| Pneumatic connection, port 1 | G1/4 |
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The GRA-1/4-B one-way check valve from Festo is engineered for efficient control of airflow direction in pneumatic systems. With 1/4-inch ports, it provides reliable prevention of backflow, ensuring that air flows in only one direction. This valve is made from high-quality materials, offering excellent durability and resistance to wear and harsh environments. Its compact design ensures easy installation and integration into various applications, including automation and material handling.
Festo GR One-way check valve.
GRA-1/4-B Datasheet:
| Valve function | One-way flow control function |
| Pneumatic connection, port 1 | G1/4 |
| Pneumatic connection, port 2 | G1/4 |
| Adjustment component | Knurled screw |
| Type of mounting | Either:Front panel mountingWith through-hole |
| Standard nominal flow rate in flow control direction | 420 l/min |
| Standard nominal flow rate in blocked direction | 780 l/min |
| Operating pressure | 0.1 bar ... 10 bar |
| Ambient temperature | -20 °C ... 75 °C |
| Material housing | Die-cast zinc |
| Explosion protection | The information in the certificate must be observed!Zone 1 (ATEX)Zone 2 (ATEX)Zone 21 (ATEX)Zone 22 (ATEX) |
| Mounting position | optional |
| Symbol | 00991453 |
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] |
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) |
| LABS (PWIS) conformity | VDMA24364-B1/B2-L |
| Media temperature | -20 °C ... 75 °C |
| Product weight | 180 g |
| Note on materials | RoHS-compliant |
| Material adjusting screw | Brass |
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