| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Material screw-in stud | Nickel-plated brass | ||
| Material thread seal | PTFE | ||
| Controller function | Output pressure constant With secondary venting With return flow function | ||
| Pneumatic connection, port 2 | QS-8 | ||
| Standard nominal flow rate | 130 l/min | ||
| Material housing | PBT | ||
| Mounting position | optional | ||
| Type of seal on screw-in stud | Coating | ||
| Symbol | 991.558 | ||
| Pressure gauge (ANALOG) or Pressure display (DIGITAL) | With pressure gauge |
| Product weight | 49 g | ||
| Note on materials | RoHS-compliant | ||
| Material static seals | NBR | ||
| Pneumatic connection, port 1 | R1/4 | ||
| Type of mounting | Screw-in | ||
| Ambient temperature | 0 °C ... 60 °C | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] | ||
| Type of actuation | Manual | ||
| Adjustment component | Rotary knob with detent | ||
| Rotatability | 360°/no continuous swivelling permissible | ||
| Pressure regulation range | 1 bar ... 8 bar |
