Ceramic double gate valve, also known as ceramic parallel double gate valve or dry gray valve, is a kind of ceramic gate valve. Therefore, its structure and working principle consistent with the ceramic gate valve, the opening and closing body (valve plate) by the valve stem to move the valve seat sealing surface for lifting movement, can be connected or cut off the fluid channel. When the valve is partially open, eddy current is generated on the back of the ram, easily causing erosion and vibration of the ram and easily damaging the sealing surface of the valve seat, which is difficult to repair. Usually, it is suitable for not requiring frequent opening and closing and keeping the ram full open or full Closed condition. The ceramic rail strip provided on the inner side of the bonnet and the auxiliary spring provided in the three-way valve core can effectively prevent the left and right shutters from moving against the ceramic track strip without any leakage so as to ensure that the valve body Of the normal operation, the utility model is simple in structure, easy to install and use. Ceramic double gate valve Ceramic double gate valve is mainly used for dry powder material into the discharge and delivery pipelines, as the cut-off and access to the media channel, so warehouse pump discharge valve, balance valve, exhaust valve, drain valve, can also be used as Pipeline switching valve and gray ash discharge valve, with good sealing performance, starting load is small, ash card and less accumulation of ash, wear resistance, long service life. Ceramic double gate valve is usually flange connection, can be divided into two manual and electric drive. Specifically, the scope of use of this series of products: 1. Power plant ash - dry ash system; 2. Concentrator - dry powder material selection, transportation; 3. Cement industry - dry powder transport, discharge; Flour mill - flour delivery pipe. 5. Other powder or small solid particles and other high wear medium delivery, because these mining media often have hard particles and fibrous dirt and other objects, the valve in the pipeline system as a hoist device, can play an excellent role . Performance comparison: Use toughening ceramic materials, more wear-resistant! The use of engineering ceramics as off and anti-erosion materials Compared with the conventional gate valve, more wear-resistant, high pressure, impact resistance, long service life Unique structural design, more reasonable: The structure of self-sealing by pressure bi-directional preloading and gate rotation was designed. The sealing surface in the dry powder medium wear evenly in the frequent opening and closing process, closed sealing performance, long service life; The design has a clean ash gray mouth, to facilitate the use of cleaning or overhauling the valve.
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Ceramic double gate valve characteristics and scope of use
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