Gas Seals

Chesterton gas seals combine advanced, patented sealing technology with a compact, easy-to-install profiled designed to fit standard ANSI/API pumps, mixers, compressors, and blowers without modification. The exclusive In-Gland Control System (IGCS) automatically tracks process pressure to regulate barrier gas, eliminating external gas panels and optimizing gas consumption for significant cost savings. 

The fault-tolerant dual concentric design transitions instantly to a liquid-lubricated, contacting seal when barrier gas is interrupted, then reverts to non-contacting mode once supply is restored, ensuring uninterrupted operation and peak reliability under fluctuating conditions. With a streamlined profile that fits into tight spaces and an intuitive cartridge-style installation, you can upgrade your sealing solution quickly—no extensive modifications or lengthy shutdowns required. Engineered for long-lasting performance, the 4400 complies with major environmental standards, making it an ideal choice for facilities focused on safety and sustainability demanding emissions control in their equipment.