Stainless steel manual internal thread gate valve, also called the cut-off gate, is the most widely used kind of valve, belongs to the forced sealing type valve, its closing principle is, relying on the pressure of valve bar, so that the sealing surface of the valve flap and the sealing surface of the valve seat closely fit together, stopping the flow of media. It is divided into several types according to different ways. The internal thread gate valve has a simple structure, good sealing life, fluid resistance, poor adjustment performance, etc.
|DN||NB||Inner diameter of thread（mm）||Outside diameter of thread（mm）|
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