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New valve seal and packing seal technology is better
Valve is an important part of the oilfield facilities, especially for gathering and conveying system, the valve is more widely used. At present, the oilfield enters the period of high water cut development, and the corrosion caused by high water content on the valve is also increasingly serious. Valves often leak. This phenomenon, Binnan oil refinery YWG YWG young workers careful study, the valve packing seal to oil seal, packing seal and other sealing methods combined with oil seal into the step for the interference fit. Throughout the assembly process, leave some space in the stuffing box and add a compression spring between the lower part of the oil seal and the remaining packing, so that the compression spring has an upward force on the oil seal and a downward force on the packing. A circular asbestos pad is inserted between the packing gland and the stuffing box. Finally, the gland is tightly fitted with the stuffing box by the bolts of the packing gland. Through a period of popularization and application, in the production to eliminate the leakage phenomenon, extending the maintenance cycle, reducing the labor intensity of workers, to avoid the occurrence of crude oil pollution.