| Valve function | One-way flow control function | ||
| Pneumatic connection, port 2 | QS-4 | ||
| Type of mounting | Front panel mounting With through-hole With accessories Either: | ||
| Standard nominal flow rate in blocked direction | 165 l/min | ||
| Ambient temperature | -10 °C ... 60 °C | ||
| Explosion protection | The information in the certificate must be observed! Zone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX) | ||
| Symbol | 991.453 | ||
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Product weight | 12 g | ||
| Material seals | NBR | ||
| Material knurled head | Reinforced PA |
| Pneumatic connection, port 1 | QS-4 | ||
| Adjustment component | Knurled screw | ||
| Standard nominal flow rate in flow control direction | 110 l/min | ||
| Operating pressure | 0,2 bar ... 10 bar | ||
| Material housing | PA-reinforced | ||
| Mounting position | optional | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] | ||
| Media temperature | -10 °C ... 60 °C | ||
| Note on materials | RoHS-compliant | ||
| Material release ring | POM | ||
| Material adjusting screw | High-alloy steel |
