The direction of the flow is determined by the position of the surface profiles in relation to the support profiles. Wedge wire screens are either flow-out-to-in or flow-in-to-out.Fully welded construction, high strength and light weight. Due to the V-shaped cross section of welding wires, it is clogging-resistant, and effective in dewatering. It can be machined into different shapes to be flat, cylindrical (inward curling, outward curling), conic and so on.Versatile wedge wire screens can be found in a great number of well applications, such as rude oil production, natural gas production, vessel internals and ground water exploration and so on. Uses: The wedge wire screen or strainer is a kind of filtered water tubing with the perforation. It can use with the deep well pump, dive the water pump, also may use in the water-treating equipment, the environmental protection, the sea water transforms into the industrial water and life use water desalination treatment, running water treatment, water softening treatment, also used in the petroleum industry as fittings for the petroleum product terminal filters and the chemical acid, the alkali liquid filters, the ethyl alcohol and the organic solution recycling filters.