457

Chesterton 457 is a high-quality, non-asbestos sheet gasket manufactured from carbon fiber combined with a nitrile binder, specifically engineered for high-temperature and high-pressure industrial applications. With a maximum temperature rating of 840°F (450°C) and the ability to withstand pressures up to 1,470 psi (100 bar), it delivers reliable performance even in the most demanding operating environments. Ideal for sealing steam, water, oils, and various hydrocarbons, the 457 gasket provides exceptional durability, long-term sealing performance, and resistance to leakage over extended service periods. It is designed for use in a wide range of industrial equipment, including pumps, valves, and flanges, helping to maintain operational efficiency and minimize maintenance needs. However, this gasket is not recommended for applications involving chlorinated hydrocarbons, aromatic compounds, or ester ketones, where chemical compatibility may be compromised.