||The valve seat is composed of a high performance anti-pressure explosion (AED) elastomer sealing ring and a sphere in the metal base to form a sealing pair, and then assembled into a metal ring to press into an engineering plastic plug-in.
||The plastic plug-in wipes the dirt on the surface of the sphere during opening and closing, which has a good protective effect on the sealing ring. Plug-in prevents the ball and valve seat from scratching due to dimension deviation during sphere installation. When there is a need for grease injection, a sealing ring is formed between the elastomer and the plug-in. Emergency sealing can be achieved with only a small amount of grease.
||It is recommended to be used in medium and high pressure, medium and large caliber medium with natural gas. The recommended dimensions of Tengbo are DN150-DN600, pressure grade PN16-PN150, Class150-Class900.