Knife gate valve is also called slide gate valve, knife type gate valve, knife blade gate valve, knife edge gate valve, slurry gate valve, mud gate valve. The opening and closing part of knife gate valve is one blade-like plate, whose movement direction is perpendicular to the flow direction of the medium. The knife gate valve is using the sharp blade-like plate which can cut off the fiber to shut off the medium flow.Â
The valve plate of the knife gate valve has two sealing surfaces, generally, that two sealing surfaces of the valve plate form a wedge shape. The wedge angle varies with the parameter of the knife gate valve, usually that wedge angle is 5°. the gate of the wedge type knife gate valve can be made into a whole, which is called a rigid gate; the gate of the wedge type knife gate valve can also be made into a gate that can produce a small deformation, so as to improve its manufacturability and compensate for the deviation of the sealing surface angle during processing. This kind of gate is called elastic gate.Â
How many types knife gate valve has:Â
According to different operating device, knife gate valve can be divided into manual knife gate valve, manual chain wheel knife gate valve, motorized knife gate valve, pneumatic operated knife gate valve, hydraulic knife gate valve, bevel gear operated knife gate valve, electronically hydraulic controlled knife gate valve and gas hydraulic knife gate valve,etc.
With different valve stem design, knife gate valve can be divided into rising stem knife gate valve and non rising stem knife gate valve.
According to different body material of knife gate valve, knife gate valve can be divided into cast iron knife gate valve(CI knife gate valve),cast steel knife gate valve(CS knife gate valve), carbon steel knife gate valve (CS knife gate valve), stainless steel knife gate valve, EPDM lined knife gate valve and PTFE lined knife gate valve.
According to different sealing structure, knife gate valve can be divided into metal to metal hard sealing knife gate valve, resilient seated soft sealing knife gate valve, unidirectional sealing knife gate valve(single sealing knife gate valve), bidirectional sealing knife gate valve(dual sealing knife gate valve), etc.Â
Belo Valve is one manufacturer and exporter for resilient seated knife gate valves, metal seated knife gate valves, ductile iron ggg40 knife gate valve, stainless steel knife gate valves, carbon steel knife gate valves, EPDM lined knife gate valves, PTFE lined knife gate valves, manual knife gate valves, electric operated knife gate valves, pneumatic operated knife gate valves, for knife gate valve price, knife gate valve data sheet, please contact us:
Uses and applications of knife gate valve:Â
Knife gate valves are suitable for coal preparation, slag discharge, urban sewage treatment, food, paper making, medicine, petroleum, chemical and other oil, water, steam pipelines in mine power plant to connect or cut off cement slurry and gold mines in the pipeline. Knife gate valves can be used for medias like powder, ore, slag, coal slime, pulp, wood pulp, tailing, fiber, dust, chemical treatment sewage, sedimentation tank, asphalt, silo outlet, fruit, grain, slaughterhouse wastewater and other medias.Â