the most popular Johnson Screens - 219mm

the most  popular Johnson Screens - 219mm
:
Xinxiang Lida Filter CO.LTD.
: 2012-04-23 00:55:22
:
water well screen,V-shape Water Well Screen ,Johns

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Description Of the most popular Johnson Screens - 219mm

the most popular Johnson Screens - 219mm Specificaton & Trade Terms

Model219mm
Place Of OriginXinxiang
Price TermEX-Work
Payment TermT/T
Johnson Screens are widely used for water, oil and gas wells in the world. As China chief manufacturer and exporter, we export good quality V wire Johnson screen to many countries. Main products cover bridge slot screen, wire wrapped well screen, stainless steel Johnson screen, water well screen, wedge wire screen, sieve bend screen, Johnson tube and sand control screen. In addition, we also offer perforated pipes and base pipes for well screen and Johnson screen.

Johnson 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 Johnson 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 openings 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, from the special shape of wire used to form the screen surface. The V-shaped openings designed to be nonclogging, are narrowest at the outer face and widen inwardly; they offer the following features:
1. Production process continuity: V-shaped profile wires creating slots which enlarge inwardly and therefore avoid clogging and minimize downtime.
2. Low maintenance costs: Separation at the screen surface which can easily cleaned by scraping or back washing.
3. Maximum process output: Precise and continuous slot openings resulting in accurate separation without loss off media.
4. Low operational costs: Large open area with an effective flow, high yield and a low pressure drop (dP)
5. Long live: Welded at each intersection creating a strong and durable screen.
6. Reduced installation costs: supporting constructions eliminating costly support media and enabling a maximum flexibility in the design of components.
7. Chemical and thermal resistant: A variety of corrosion resistant stainless steel materials and many exotic alloys suitable for high temperatures and pressures.

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