Hallite seal 657
Technical details
| OPERATING CONDITIONS | METRIC | INCH |
| Maximum Speed | Static | Static |
| Temperature Range – Hythane® 181 | -45°C +110°C | -50°F +230°F |
| Temperature Range – PU 021 | -30°C +100°C | -22°F +212°F |
| Maximum Pressure | 600 bar | 8500 psi |
| SURFACE ROUGHNESS | µmRa | µmRz | µmRt | µinRa | µinRz | µinRt |
| Sealing Faces | 0.8 max | 3.2 max | 6.3 max | 32 max | 64 max | 128 max |
| Mating Face | 3 max | 10 – 15 | 20 – 30 | 120 max | 400 – 600 | 800 – 1200 |
| METRIC | |||||
| Part no. | ØD1 | Ød1 | S | L1 | L2 |
| 4432800 | 33.5 | 26.3 | 3.6 | 2.2 | 0.25 |
| 4491200 | 45 | 36.2 | 4.4 | 3.3 | 0.25 |
| INCH | |||||
| Part no. | ØD1 | Ød1 | S | L1 | L2 |
| 4490900 | 1 | 0.67 | 0.165 | 0.11 | 0.01 |
| 4491000 | 1.25 | 0.92 | 0.165 | 0.11 | 0.01 |
| 4491100 | 1.56 | 1.23 | 0.165 | 0.11 | 0.01 |
| 4422000 | 1.75 | 1.42 | 0.165 | 0.11 | 0.01 |
| 4422100 | 2.125 | 1.785 | 0.165 | 0.11 | 0.01 |
| 4422200 | 2.5 | 2.16 | 0.165 | 0.11 | 0.01 |