National standard flanged stop valve

◆ Nominal diameter:

DN15-DN600

◆ Valve body material:

Stainless steel, cast steel, carbon steel, forged steel

◆ Manufacturing standards:

GB/ANSI/JIS

◆ Product Overview:

The stop valve, also known as the gate valve, is a type of forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to prevent leakage at the sealing surface. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the frictional force between the valve stem and the packing and the thrust generated by the medium pressure. The force required to close the valve is greater than that to open it, so the diameter of the valve stem should be larger; otherwise, the valve stem will bend.