API std 622 3rd Edition

API std 622 3rd Edition – Graphite Packing for quarter turn valves, style XCTR4 Evolution.

The Product Family of packing qualified API std 622 3rd Edition is further enhanced with the new XCTR4 Evolution model, engineered specifically for quarter-turn valves. The special design of XCTR4 Evolution and the use of innovative materials for the wiper rings give to the packing an effective low emission control and a very low relaxation rate which guarantees the best performance for long-time. XCTR4 Evolution together with PGT3 GR8622 and PGT4 GR8622, the other two graphite packings approved API std 622 3rd Edition, offer a complete, qualified and effective range by Carrara to choose the best solution for each specific valve application.