Huadong Industrial Co.,Ltd is a supplier of high quality wedge wire screen, johnson screen, johnson strainer, water well screen, bridge slot screen, stainless steel casing etc.
Johnson well screen
Johnson well screen
Johnson Well Screen is widely used throughout the world for water, oil, and gas wells, and is the dominant screen type used in the water well industry.
Continuous-slot well screen is made by winding cold-rolled wire, approximately triangular in cross section, around a circular array of the longitudinal rods. The wire is attached to the rods by welding, producing rigid one-piece units having high strength characteristics at minimum weights.
Slot opening for continuous screens are manufactured by spacing successive turns of the outer wire to produce the desired slot size. All slots should be clean and free of burns and cuttings.
Advanced solid construction suitable for installation to depths of ±400 meters.
Completely corrosion free eliminating electrolysis reaction.
Screens are provided with threaded female ends and connected by means of a separate nipple (adaptor) retaining length and internal and external smoothness.
A maximum open area of 50% is offered facilitating high flow capacity and low inlet resistance resulting in extended well life.
The hydraulic advantages afforded by Johnson well screen make it also suitable for low yield water bearing strata.
Light weight easy to handle.
Competitively priced.
