Knife gate valves - — Also known as the knife gate valve, knife type slurry valve, from the eighty s into our country. In less than twenty years, its use range from the common areas expanded into wider all walks of life. From power plant of coal mines, conveyor, slag discharge. Development of the urban sewage treatment, from the general industrial pipeline to food, health, medicine and other professional pipeline system. Ultra thin knife gate valve with its small volume, light weight, small flow resistance, and the advantages of easy to install, easy to remove completely solve the ordinary gate valve, flat gate valve, ball valve, globe valve, regulating valve, butterfly valve such as flow resistance of the valve, weight big, difficult installation problems, covers an area of big, etc. The installation and maintenance: knife gate valve 1. Type knife gate valve before installation must check valve cavity and seal face and other parts, there is no dirt or sand clinging to the body; 2. Each bolt connection parts, require uniform tight; 3. Check the packing pressure parts requirements, both to ensure that the packing sealing, also to ensure the gate open flexible; 4. Users must before installing the valve, check valve, connected to the flow direction of medium size and note, ensure consistency with the Industrial Valves requirements; 5. User when installing the valve, the valve must be set aside driven necessary space; 6. Drive connection must be according to the circuit diagram; 7. Knife gate valve must be regularly maintenance, shall not be arbitrarily collision and extrusion, in order to avoid affect the sealing. Maintenance, hand wheel, lever and transmission mechanism are not allowed for lifting, and it is forbidden to collision. 2, double disc gate valves should be installed vertically ( The stem in a vertical position, the handwheel at the top) 。 3, with a bypass valve gate valve in open open the bypass valve should be taken before, To balance the import and export of pressure difference and reduce the opening force) 。 4, belt transmission mechanism of the gate, according to the regulations of the product instruction manual installation. 5, if the Industrial Valves switch is used, often lubrication at least once a month.
resilient wedge gate valve cast iron gate valve, as the name suggests, find extensive use in os&y valve institutions. Since y gate valve has become much dependent on technology in today's world, there is wide use of such gate valve.
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