| Symbol | 991.559 | ||
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Note on materials | RoHS-compliant | ||
| Controller function | Output pressure constant With secondary venting With return flow function | ||
| Pneumatic connection, port 2 | QS-4 | ||
| Standard nominal flow rate | 80 l/min | ||
| Material housing | PBT | ||
| Mounting position | optional | ||
| Adjustment component | Rotary knob with detent |
| Pressure regulation range | 1 bar ... 8 bar | ||
| Product weight | 19 g | ||
| Material static seals | NBR | ||
| Pneumatic connection, port 1 | QS-4 | ||
| Type of mounting | With through-hole | ||
| Ambient temperature | 0 °C ... 60 °C | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] | ||
| Type of actuation | Manual |
