| Material seals | NBR | ||
| Valve function | One-way flow control function | ||
| Pneumatic connection, port 2 | G1/4 | ||
| Type of mounting | In-line installation | ||
| Standard nominal flow rate in blocked direction | 150 l/min | ||
| Ambient temperature | -20 °C ... 75 °C | ||
| Explosion protection | The information in the certificate must be observed! Zone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX) | ||
| Symbol | 991.453 | ||
| Standard flow rate in non-return direction 0.6->0 MPa (6->0 bar, 87->0 psi) | 340 l/min | ||
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Product weight | 80 g |
| Material adjusting screw | Steel Galvanised | ||
| Pneumatic connection, port 1 | G1/4 | ||
| Adjustment component | Knurled screw | ||
| Standard nominal flow rate in flow control direction | 370 l/min | ||
| Operating pressure | 0,5 bar ... 10 bar | ||
| Material housing | Wrought aluminium alloy | ||
| Mounting position | optional | ||
| Standard flow rate in flow control direction 0.6->0 MPa (6->0 bar, 87->0 psi) | 570 l/min | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:-:-] | ||
| Media temperature | -20 °C ... 75 °C | ||
| Note on materials | RoHS-compliant |
