| Valve function | Non-return function | ||
| Pneumatic connection, port 2 | QS-4 | ||
| Standard nominal flow rate | 138 l/min | ||
| Ambient temperature | 0 °C ... 60 °C | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:-:-] | ||
| Min. diff. pressure, opening | 0,1 bar | ||
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Note on materials | RoHS-compliant |
| Pneumatic connection, port 1 | R1/8 | ||
| Type of mounting | Screw-in | ||
| Operating pressure | -1 bar ... 10 bar | ||
| Material housing | Nickel-plated brass | ||
| Symbol | 991.455 | ||
| Min. diff. pressure, closing | 0,2 bar | ||
| Product weight | 11 g |
