||The seat is an improved type of TB-B1 valve seat. The seat consists of a high-performance anti-pressure explosion (AED) elastomer seal ring and a sphere in the metal base to form a sealing pair, which is then pressed into the engineering plastic plug-in, and a swallow tail groove is ready-made.
||Compared with TB-B1 seat, adding a sealing pair ensures the sealing of the valve, especially for the gas medium. Engineering plastic plug-in not only plays a protective role, but also plays a sealing effect. The improved seat has wider application scope and better sealing effect.
||It is recommended to be used in medium and low pressure gas-containing media with infrequent start-up and shut-down. The recommended dimensions of Tengbo are DN50-DN600, pressure grades PN16-PN40 and Class150-Class300.