Stainless steel Johnson type well filter pipe
Anping Shengyang Metal Wire Mesh Products Co.Ltd is special on metal wire mesh products, we produce Water well screen Wedge wire screen & well filter pipe & Rod based wire wrapped screen & Screen tube & Sand control well screen.
The continuous-slot well filter pipe is widely used throughout the world for water, oil, and gas wells, and is the dominant screen type used in the water well industry.
Johnson type filter pipe 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-slot 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 burrs and cuttings.
Each slot opening between adjacent wires is V-shaped, resulting from the special shape of the wire used to form the screen surface. The V-shaped openings, designed to be nonclogging, are narrowest at the outer face and widen inwardly.
Continuous-slot well filter pipe provide more intake area per unit area of screen surface than any other type. For any given slot size, this type of screen has maximum open area.
Slot size (mm):0.05, 0.1, 0.15, 0.2, 0.25, 0.3 also achieved upon customer request.
Well filter pipe Material :Low Carbon Galvanized (LCG),Stainless Steel( 205,,304,316 etc.)
Lengths:up to 6 meters.
Diameter: from 25 mm to 1000mm.
Well filter pipe End Connection:with welding or threaded male/female coupling.
