توضیح کوتاه:

Model： TB-D1 Structure： 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. Characteristic： 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 p...