Precautions and models in the use of manual knife gate valve products: It entered my country from the 1980s. In less than two decades, its use has expanded from the general field to a wider variety of industries. Coal preparation, gangue discharge and slag discharge from mining power plants. It has developed to urban sewage treatment, and has developed from general industrial pipelines to professional pipeline systems such as food, sanitation, and medicine.
Item NO.:
XUVAL77-127Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
GreenMOQ:
10Precautions and features in the use of manual knife gate valve products:
The opening and closing part of the knife gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The knife gate valve can only be fully opened and fully closed, and cannot be adjusted. and throttling. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 50. The gate of the wedge type knife gate valve can be made into a whole, called Rigid gate; it can also be made into a gate that can produce slight deformation to improve its craftsmanship and make up for the deviation of the sealing surface angle during processing. This gate is called an elastic gate. When the knife gate valve is closed, the sealing surface It can only rely on the medium pressure to seal, that is, relying on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most knife gate valves are forced to seal, that is When the valve is closed, the gate must be forced against the valve seat by external force to ensure the tightness of the sealing surface.
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