Pyrex nozzle sealing ring for TIG Ergo 201/221/401 is a component designed to ensure tightness between the nozzle and the rest of the torch. Its function is to prevent protective gas leakage, which affects welding arc stability and weld quality. The ring is made of heat-resistant materials, which ensures its long-term durability and reliability in harsh working conditions. Regular replacement of the sealing ring allows you to maintain optimal performance of the TIG torch.