Packing type cone plug valve, the valve body with packing, by compression packing seal between the plug and body sealing surface. This kind of valve is the use of the lubrication metal seal, because the friction between the sealing surface is higher, in order to ensure the plug on the valve body can rotate freely, allowed by the sealing load subject to restrictions. So gap leakage of the seal face is relatively wide, so this kind of valve is only used when high surface tension and viscosity of the liquid can achieve satisfactory sealing. However, if in front of the assembled valve plug with a layer of sealing grease, so the valve can also be used in wet gas, such as wet or oily compressed air. The occasion of 0 mpa. The body below the screw can rise to the plug and body with elastic adjustment. In this paper, the keyword search: more technical articles Industrial Valves product supply information
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