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Dark Pole Knife Gate valve

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Knife Gate Valve rising stem type(SG-011)

Basic Design: JB/T8691-1998

Flange: ASME/ANSI/DIN

Face to face: EN558-1

Test standard: ISO5208

Dark rod knife gate valve: (also known as knife gate valve) The opening and closing parts of knife gate valve are gates. The moving direction of the gate is perpendicular to the direction of fluid. Manual knife gate valve can only be fully opened and closed, and can not be adjusted and throttled.

Dark rod knife gate valve: (also known as knife gate valve) The opening and closing parts of knife gate valve are gates. The moving direction of the gate is perpendicular to the direction of fluid. Manual knife gate valve can only be fully opened and closed, and can not be adjusted and throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valves form wedge-shaped and wedge-shaped angles, which vary with the valve parameters. Usually, the wedge-shaped knife gate valves can be made into a whole, called rigid gates. They can also be made into gates that can produce slight deformation to improve their workmanship and compensate for the deviation caused by the angle of the sealing surface in the process. This kind of gate is called bullet. When the knife gate valve closes, the sealing surface can be sealed only by the medium pressure, that is to say, the sealing surface of the gate can be pressed to the seat on the other side to ensure the sealing surface, which is self-sealing. Most knife gate valves are forced to seal, that is, when the valve closes, the gate must be forced to the seat by external force to ensure the sealing surface.

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