| Valve function | One-way flow control function | ||
| Material seals | NBR | ||
| Product weight | 2,5 g | ||
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Symbol | 991.453 | ||
| Explosion protection | The information in the certificate must be observed! Zone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX) | ||
| Ambient temperature | -10 °C ... 60 °C | ||
| Standard nominal flow rate in blocked direction | 26 l/min ... 27,5 l/min | ||
| Type of mounting | Front panel mounting With through-hole Either: | ||
| Pneumatic connection, port 2 | M3 |
| Material adjusting screw | Brass | ||
| Note on materials | RoHS-compliant | ||
| Media temperature | -10 °C ... 60 °C | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [6:4:4] | ||
| Mounting position | optional | ||
| Material housing | Wrought aluminium alloy | ||
| Operating pressure | 0,3 bar ... 8 bar | ||
| Standard nominal flow rate in flow control direction | 29,5 l/min | ||
| Adjustment component | Knurled screw | ||
| Pneumatic connection, port 1 | M3 |
