The use of flat gate valve maintenance instructions First, the use, performance and features Flat gate valve is a member of the family of gate valve, with the same wedge gate valve; its main function is to control the pipeline on and off, rather than regulating the medium in the pipeline flow. The advantages of the fluid resistance is small, hoist effort, shorter structure length, the flow of medium and other restrictions on the pipeline. The disadvantage is that the seal pair has two sealing surfaces, the processing is more complex, high cost, higher relative to other valves, opening and closing longer, opening and closing relative friction between the sealing surface, easy to cause scratches Second, the product structure Valve seat The utility model adopts a sealing structure with a sealing ring and a pre-tightening floating seat structure, so that the valve inlet and outlet are sealed bidirectionally; and the opening and closing moment of the structure is only an ordinary valve, which can be easily opened and closed. 2 The valve seat adopts inlaid or welded stainless steel (or cobalt chromium tungsten alloy) on the sealing surface, with the double seal of the metal and the metal to the metal, and the sealing surface simultaneously removes the action of the gate dirt. 3, metal to metal seal valve, the body has a grease injection structure, grease through the grease, valve seat into the valve surface, the valve to zero leakage. 4, with diversion hole valve gate, whether it is fully open or fully closed with the sealing surface is always consistent with the sealing surface is protected from direct erosion of the media, thereby extending the service life. 5, the valve is fully open, the channel is smooth for the straight line, the flow resistance coefficient is minimal, no pressure loss, can pass the hair ball cleaning pipeline. 6, The valve adopts self-sealing packing structure, without frequent adjustment, open and close extremely light, and reliable sealing, stuffing box at the auxiliary seal grease injection structure, the sealing performance is absolutely reliable, and truly achieve zero leakage; General valve packing at the most easy to leak the ills. 7, when the valve is closed, it can automatically remove the lumen high pressure (see the working principle diagram), to ensure the safe use. 8, fully enclosed structure, protective performance, can adapt to all weather requirements. 9, the valve has a rod or observation window to indicate the valve opening and closing situation. More Keyword Search: Flat gate valve
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