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With sectional construction, we have built screens up to 2.6m in diameter and 16m long. Each LongZhongLong screen can be up to 5.9m in continuous length. A wide range of external wrap wire and internal support rod shapes and sizes lets our design engineers build you a screen that is the perfect fit for your application. Our screen cylinders are used for a variety of filtration media retention and dewatering applications. Screen slots are sized to admit fluid flow while excluding solids.
With such packing materials as gravels filled into the space between their outer and inner, double repacked screens, mainly used in oil wells, gas wells, and water wells, will make downhaul operation unnecessary and better sand prevention which is an advanced sand control technology. Catalysts or microbicides packed in the layers of screens contribute to chemical production and industrial sterilization.