STYLE 603
The Invincible 600 has a built in solid steel ring locked in place by reinforcement materials at the arch crown. This enables the 600 to handle vacuum conditions in excess of those listed for the 500 in multiple arch joints.
Material & Operating Temperatures
| HT500 |
HIGH TEMPERATURE MATERIAL Cover | Max Oper. Temp. |
| K-E | EPDM | 350°F |
| K-V | Viton | 400°F |