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Water Well Screen
- Wedge Wire Water Well Screen
Wedge Wire Water Well Screen
Johnson Deep Water Well Screens, also referred to as continuous slot screens or wire wrap screens, were originally developed to solve sand control challenges in fine-grained and uniform sand formations. These geological conditions are commonly encountered in deep groundwater aquifers, where conventional perforated pipes often suffer from clogging, excessive sand production, and reduced well efficiency.
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Water Well Screen Pipe with Thread Connection
Threaded
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Water Well Screen Pipe with Flange Connection
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Water Well Screen Pipe with Welding Ring Connection
Welded Ring
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Johnson Well Screen
Schematic diagram of sand and gravel interception using a water well pipe
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Inner-lined Perforated tube
The primary purpose of the perforated lined tube is not filtration, but rather to provide additional structural strength and compressive stability; it is an enhanced design.
Product Description
The screen is manufactured by helically wrapping a V-shaped profile wire around an internal framework of longitudinal support rods. Each contact point between the wire and rods is permanently joined using advanced resistance welding, forming a rigid, self-supporting structure. The continuous slot design ensures that openings widen inward, preventing particles from becoming lodged and significantly reducing clogging during long-term operation.
Thanks to its high open area, the Johnson well screen allows water to enter the well with minimal frictional head loss. This leads to higher well yield, reduced pumping energy consumption, and shorter well development time. In deep well applications, these advantages directly translate into lower operational costs and extended well service life.
Most Johnson Deep Water Well Screens are manufactured from stainless steel to withstand aggressive groundwater conditions. Stainless steel construction provides excellent resistance to corrosion, scaling, and biological fouling, making the screens suitable for both freshwater and mildly corrosive aquifers.
Product Features and Advantages
Continuous Slot Design
Uniform slot openings ensure effective sand control while maximizing water inflow.
V-Shaped Wire Profile
Slots widen inward to reduce clogging and improve self-cleaning performance.
High Open Area
Minimizes head loss, improves well efficiency, and reduces pumping costs.
Strong Structural Integrity
Resistance-welded construction provides excellent collapse strength for deep installations.
Corrosion Resistance
Stainless steel materials ensure long service life in deep groundwater environments.
Reduced Well Development Time
Smooth wire surface allows faster removal of drilling fines during development.
Long Service Life
Stable structure and anti-clogging design significantly extend well operating lifespan.
Product Parameters
Screen Type: Continuous Slot / Wire Wrapped Well Screen
Material Options:
Stainless Steel 304
Stainless Steel 316 / 316L
Carbon Steel (optional, application-dependent)
Slot Size Range: 0.10 mm – 3.0 mm (customizable)
Diameter Range: 50 mm – 1000 mm (2″ – 40″)
Standard Length: 6 m (20 ft) per section
Connection Type: Threaded ends, flanged ends, or welded connections
Open Area: Up to 25–40% depending on slot size and diameter
Collapse Strength: Designed for deep wells up to 300 m depth
Surface Finish: Pickled, polished, or untreated (optional)
Custom specifications are available based on well depth, formation size, and water quality requirements.
Normal Sizes
| Screen Size | Inner Diameter | Outer Diameter |
| 4” | 101.6mm | 114mm |
| 6” | 152.4mm | 168mm |
| 8” | 203.2mm | 219mm |
| 10” | 254mm | 273mm |
| 12” | 304.8mm | 325mm |
| 14” | 355.6mm | 377mm |
Application Areas/Scenarios
Deep groundwater extraction wells
Municipal and rural drinking water wells
Agricultural irrigation wells
Industrial water supply systems
Mining and dewatering wells
Geothermal and energy-related water wells
Johnson Deep Water Well Screens are especially suitable for fine sand formations where reliable sand control and long-term stability are essential.
OUR PRODUCTS
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Starch Screen
The Wedge Wire Starch Curved Screen is a curved screening device specifically designed for the starch industry. It features an arc-shaped screen surface made of precisely welded V-profile stainless steel wires, utilizing centrifugal force or gravity to achieve rapid dewatering and classification of starch slurry. Its curved structure prolongs slurry retention time, improving solid-liquid separation efficiency. It is suitable for starch extraction, refining, and byproduct recovery processes for starches such as potato, corn, and cassava. Characterized by efficient screening, wear and clogging resistance, and easy maintenance, this equipment is a key solid-liquid separation device in modern starch processing.
Rotary Drum
The Stainless Steel Wedge Wire Rotary Drum Screen (also known as a Rotary Drum Strainer or Micro-Screen) is a continuously and automatically operating front-end solid-liquid separation device. Its core component is a large cylindrical drum installed horizontally or at a slight incline. The entire circumferential surface of the drum is covered with a stainless steel wedge wire screen (Johnson screen). The wastewater to be treated flows into one end of the drum. Under gravity, the filtrate passes through the wedge wire slots, while solid suspended matter (such as fibers, hair, plastic pieces, and fine particles) is retained on the inner surface of the drum. As the drum rotates slowly, the retained debris is lifted to the top, where it is flushed by spray water into a collection trough, achieving a continuous process of automatic screening, filtration, and residue removal
Screen Basket for Screw Press Separator
The stainless steel wedge wire screen basket, commonly known as the "V-wire screen," "press screen basket," or "screen cylinder," is a core component of screw press solid-liquid separators. It is installed inside the spiral press, enclosing the rotating screw shaft. The working principle is as follows: raw slurry with high moisture content is pushed into the screen basket by the screw shaft. Under the squeezing and conveying action of the spiral flights, the liquid (filtrate) is forced out through the precise, continuous slots of the screen basket, while the solid material (manure cake) is retained inside and continues to be compressed and dewatered as it moves forward. Finally, the dewatered solids are discharged from the outlet, achieving solid-liquid separation.
Wedge Wire Vibrating Screen
A stainless steel wedge wire vibrating screen is a solid-liquid separation device featuring a screen surface made by precisely welding V-shaped stainless steel wires, integrated with a high-frequency vibration system. With uniform slots, wear resistance, and corrosion resistance, it is suitable for wet screening and dewatering operations. The vibration mechanism enables rapid material dispersion and efficient sieving while effectively preventing screen clogging. Widely used in industries such as mining, metallurgy, food processing, and environmental protection, it is particularly suitable for handling fine particles, high-viscosity, or easily agglomerated materials, offering advantages such as high screening accuracy, large processing capacity, and long service life.
Sintered Mesh Plate and Disc
Sintered Mesh Plates and Discs are high-precision filtration components fabricated by bonding multiple layers of stainless steel wire mesh through a specialized vacuum sintering process. Unlike traditional mesh that relies on mechanical weaving alone, these plates are fused at every contact point, transforming individual wires into a rigid, integrated porous metal sheet.
These plates can be customized into various shapes, most commonly circular discs, to fit specific industrial equipment. They offer an ideal balance of high permeability, extreme structural integrity, and precise filtration ratings. Because they are made entirely of metal (typically 304 or 316L), they provide a "permanent" filtration solution that can withstand high temperatures and corrosive chemicals while remaining fully cleanable and reusable.
Sintered Mesh Filter Cartidge
The Sintered Mesh Filter Cartridge is a high-performance, precision filtration component manufactured by bonding multiple layers of woven wire mesh (typically stainless steel 316L or 304) through a specialized vacuum sintering process. Unlike traditional fiber-based or single-layer mesh filters, this process creates a permanent molecular bond between every wire intersection, resulting in a porous metal structure with exceptional mechanical strength and structural integrity.
This cartridge is designed for demanding industrial environments where high pressure, extreme temperatures, and corrosive fluids are present. Its defining characteristic is the ability to provide precise, consistent filtration ratings while remaining fully cleanable and reusable, making it an eco-friendly and cost-effective alternative to disposable filter elements.
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