The sealing surfaces of the disc in an API wedge gate valve are wedge-shaped, forming a specific angle with the disc centerline. The disc is driven to close by the valve stem. As the stem thrust increases, the normal force acting on the wedge-shaped sealing surfaces intensifies, enabling forced sealing. This enhances sealing performance for low-pressure media. Additionally, the disc sealing surfaces instantly detach from the valve seat upon opening, minimizing wear on the sealing interfaces.
Applicable Standards:
Gate Valve, API600
Steel Valves, ASME B16.34
Face to face ASME B16.10
End Flanges ASME B16.5/ASME B16.47
Butt Welding ends ASME B16.25
Inspection and test API 598
Material: WC9
Size Range: 2″~36″
Pressure Rating: ASME CL, 150, 300, 600, 900, 1500, 2500
Temperature Range: -196℃~650℃
