Product Specification

304 Stainless Steel Vee Wire Water Well Screen

1. Product Information

The 219mm Vee Wire Water Well Screen is a premium continuous-slot filtration screen designed for water well construction in unconsolidated and semi-consolidated aquifers. Also known as Johnson screens or wedge wire screens, this product is manufactured by wrapping V-shaped (wedge-shaped) stainless steel profile wires around a circular array of longitudinal support rods, with each intersecting point fusion welded using advanced all-weld technology.

The V-shaped profile wire wraps around the support rods over the full length of the screen, creating a continuous slot opening that provides superior filtration performance. This design allows water to enter the well freely in ample quantities while effectively keeping sand, gravel, and other formation particles out of the well.

Specifications:

2. Characteristics

Continuous Slot Design – The V-shaped wire profile creates a continuous slot opening along the entire screen length, maximizing the available open area for water intake. Open area can reach up to 60%, significantly outperforming traditional slotted or perforated pipe screens.

Self-Cleaning / Non-Clogging – The unique V-shaped profile ensures that particles make only two-point contact with the slot surface and cannot wedge into the opening. This self-cleaning (go/no-go) design prevents clogging and ensures uninterrupted flow.

All-Welded Robust Construction – Each intersecting point of the wedge wire and support rod is fusion welded, creating a robust, durable structure with excellent mechanical performance.

High Pressure Resistance – The longitudinal support rods combined with the continuous slot design provide superior pressure-resistant performance, suitable for deep well applications.

Precise Slot Dimensions – Slot sizes are manufactured with high precision, ensuring consistent filtration performance across the entire screen.

Corrosion Resistance – Stainless Steel 304 construction provides excellent resistance to corrosion, ensuring long service life even in aggressive water conditions.

3. Applications 

The 219mm Vee Wire Water Well Screen is widely used in various water extraction and filtration applications:

• Water Well Drilling – Primary intake screen for municipal, agricultural, and industrial water wells

• Deep Well Filtration – Designed for deep well applications requiring reliable sand control and high flow rates

• Irrigation Systems – Agricultural water supply wells in sandy and gravel formations

• Industrial Water Supply – Process water intake for manufacturing and industrial facilities

• Water Treatment Equipment – Filtration component in water softening and treatment systems

• Desalination Plants – Seawater to industrial/living water conversion systems

• Geothermal and Mineral Water Wells – Sand control in specialty well applications

The 1.0mm slot size is ideally suited for medium to coarse sand formations, providing effective sand retention while maintaining high water yield.

4. Selling Points

• Superior Filtration Efficiency

The continuous V-shaped slot design provides maximum open area while maintaining precise filtration. This allows more water to enter with less frictional head loss, improving overall well efficiency.

• Non-Clogging, Self-Cleaning Design

Unlike traditional slotted screens, the V-shaped profile prevents particles from lodging in the slots. Particles that enter cannot become trapped, ensuring uninterrupted water flow and reducing maintenance requirements.

• Extended Well Service Life

By reducing water entry velocity and preventing sand from entering under pressure, the screen effectively controls sand production, which increases water yield and prolongs the service life of the well.

• Robust and Durable Construction

All-welded construction with fusion-welded intersecting points creates a screen with exceptional structural integrity and long service life.

5. Service

Manufacturing Capability

We are a professional manufacturer with years of experience in producing high-quality water well screens, wedge wire screens, and Johnson screens. Our advanced production facilities and strict quality control ensure consistent product quality.

Customization Services

• Tailored specifications based on customer requirements

• Custom diameters, slot sizes, lengths, and end connections

• Various material grades available (304, 304L, 316, 316L, carbon steel)

• Surface treatment options: galvanized, painted, polished

Quality Assurance

• Fusion-welded construction at all intersecting points

• Precise slot dimension control

• Comprehensive quality inspection and testing

• Compliance with international standards

Packaging & Shipping

• Packaging: Bubble bag and woven bag, in bundle or in wooden cases

• Container Optimization: 5.8m lengths for 20ft containers, 3m lengths available

• Shipping: Timely delivery with professional logistics coordination

Technical Support

• Professional engineering consultation for screen selection

• Slot size recommendations based on formation analysis

• Installation guidance and after-sales support

6. FAQ

Q1: What is the difference between a Vee wire screen (Johnson screen) and a slotted pipe screen?

A Vee wire screen, also known as a Johnson screen or wedge wire screen, is manufactured by wrapping V-shaped (wedge-shaped) wires around longitudinal support rods, creating continuous slot openings. This design provides a much larger open area (up to 60%) compared to slotted pipe screens (typically 3-10%). The V-shaped profile is self-cleaning and prevents clogging, while slotted pipes have straight-cut slots that can become blocked by sediment. For high-yield wells in sandy or unconsolidated formations, Vee wire screens are the premium choice. 

Q2: What slot size should I choose for my water well?

Slot size selection depends on the formation particle size distribution. As a general guide: fine sand requires 0.15-0.30mm slots, medium sand requires 0.30-0.60mm, coarse sand requires 0.60-1.20mm, and gravel formations require 1.20-3.00mm. The professional approach is to conduct a sieve analysis of formation samples and select a slot size that retains approximately 40-60% of the formation material. For the 1.0mm slot size offered in this product, it is ideally suited for medium to coarse sand formations. 

Q3: Why choose Stainless Steel 304 over galvanized or carbon steel?

Stainless Steel 304 offers superior corrosion resistance, making it the premium choice for water wells, especially in aggressive or corrosive water conditions. While galvanized carbon steel has a lower initial cost, the zinc coating will eventually fail, leading to accelerated corrosion and shorter screen life. Stainless Steel 304 provides excellent resistance to salts, gases, and chemical corrosion, ensuring long service life and minimal maintenance. It is particularly recommended for deep wells, high-yield wells, and applications where long-term reliability is critical.

Q4: How do I maintain and clean my Vee wire well screen?

Vee wire screens feature a self-cleaning design due to the V-shaped profile—particles that enter the slot cannot become lodged and will fall away naturally. If maintenance is required, the screens can be easily backwashed to remove accumulated sediment. In cases of mineral encrustation (scale buildup), chemical treatment with appropriate acids or mechanical cleaning can be performed. The robust all-welded construction allows screens to be removed for cleaning rather than being replaced, avoiding the environmental costs of disposable filters. Regular monitoring of well yield can help identify when cleaning is needed. 

7. Company Information

OASIS is a professional manufacturer specializing in the research, development, design, and production of high-quality water well screens, Johnson screens, wedge wire screens, and related filtration products.

With years of industry experience and advanced manufacturing capabilities, we are committed to providing reliable, durable, and cost-effective well screen solutions for customers worldwide. Our products are widely used in water well drilling, oil and gas well sand control, industrial filtration, water treatment, and environmental protection applications.

Our Commitments:

• High-quality products with strict quality control

• Competitive pricing with timely delivery

• Customized solutions tailored to specific requirements

• Professional technical support and after-sales service

We welcome inquiries from global customers and look forward to establishing long-term cooperative relationships.