| Actuator lock | Rotary knob with integrated lock | ||
| Design | Piloted precision diaphragm control valve | ||
| Symbol | 991.540 | ||
| Operating pressure | 1 bar ... 12 bar | ||
| Max. pressure hysteresis | 0,02 bar | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] Inert gases | ||
| LABS (PWIS) conformity | VDMA24364-B1/B2-L | ||
| Ambient temperature | -10 °C ... 60 °C | ||
| Type of mounting | Front panel mounting In-line installation With accessories | ||
| Pneumatic connection, port 2 | G1/4 | ||
| Material seals | NBR |
| Mounting position | optional | ||
| Controller function | Output pressure constant With secondary venting | ||
| Pressure gauge (ANALOG) or Pressure display (DIGITAL) | Prepared for G1/8 | ||
| Pressure regulation range | 0,05 bar ... 0,7 bar | ||
| Standard nominal flow rate | 800 l/min | ||
| Note on operating and pilot medium | Lubricated operation not possible | ||
| Media temperature | -10 °C ... 60 °C | ||
| Product weight | 410 g | ||
| Pneumatic connection, port 1 | G1/4 | ||
| Note on materials | RoHS-compliant | ||
| Material housing | Aluminium |
