Product Introduction
Our high strength wedge wire screen tube, also called Johnson screen tube, is fabricated by welding profiled wedge wire onto longitudinal support rods. The V-shaped opening expands inwards. This all-welded construction delivers much higher load capacity than common woven mesh and perforated plate filters. It works steadily for solid-liquid, solid-gas separation and medium interception under demanding pressure and flow conditions.

Properties
Superior structural strength, high pressure resistance, corrosion resistance, stable filtration accuracy, consistent slot gaps, good backwash performance, high temperature tolerance, long service cycle.
Features
1. V-shaped inward expanding slot, hard to get blocked during continuous operation
2. Full welded structure, strong rigidity, suitable for high pressure working conditions
3. Smooth surface, low flow resistance and large effective flow rate
4. Slot opening can be finely adjusted for different particle interception demands
5. Convenient cleaning, compatible with online backwashing and ultrasonic cleaning
6. Resists deformation under long-term medium scouring and impact
Application Scenarios
Water treatment: raw water filtration, underground well sand control, circulating water treatment, sewage purification, RO pre-filtration
Petrochemical industry: oil-water separation, downhole sand control, resin traps, catalyst recovery
Food and beverage: juice, syrup and edible oil filtration, beverage impurity removal
Mining: mine water filtering, pulp classification
Pulp & paper: fiber recovery and pulp filtration
Agriculture: drip irrigation anti-clog filters, farm water purification
Other fields: pharmaceutical production, new energy slurry filtration, seawater desalination
Product & Company Advantages (Anping Haopeng Metal Wire Mesh Co., Ltd.)
We are a professional manufacturer based in Anping, China’s wire mesh hometown. We handle the whole production process in-house, from wedge wire forming, automatic welding, finishing to quality inspection and packing.
We tailor slot precision, dimensions and material plans according to your actual working conditions. Both small trial orders and bulk production are acceptable.
Every batch of screen tubes goes through strict inspection before shipment. We check slot uniformity, welding quality and roundness one by one.
Our team provides practical selection and installation suggestions. We maintain stable lead times and can arrange priority production for urgent orders.
Our high strength wedge wire screen tubes are exported worldwide, and we accept third-party inspection as requested.
Customer Feedback
Most buyers comment that our screen tubes hold shape well under high pressure, with no slot shifting after long running hours.
Clients using backwash systems say the tubes clean thoroughly, and flow rate bounces back quickly after each backwash cycle.
Engineering customers mention we revise drawings fast, and custom flanges or threaded ends fit their equipment perfectly.
Users working in corrosive seawater and chemical environments are satisfied with the stable performance of our 316L and duplex steel screen tubes.
FAQ
Q1: Can you produce non-standard sizes and special slot gaps?
A1: Yes. We make custom products based on your drawings or technical specifications.
Q2: Which material suits seawater service?
A2: 316L works for mild corrosion. 2205 or 2507 duplex stainless steel is recommended for long-term seawater exposure.
Q3: What is the maximum working pressure this screen tube can take?
A3: Pressure rating depends on outer diameter, length, material and support rod layout. We will offer a reference value after confirming your working parameters.
Q4: Can I get samples for testing?
A4: Samples are available. Sample cost and freight will be discussed separately.
Q5: What cleaning methods work for wedge wire screen tubes?
A5: Backwashing is the preferred method. Offline high-pressure water washing and ultrasonic cleaning also work. Do not scrape the slot surface with hard tools.
Size & Parameters
- Slot opening: 0.025 mm to 20 mm, custom made to match required filtration accuracy
- Outer diameter: 20 mm – 1200 mm
- Length: 50 mm – 3000 mm; longer sections can be spliced on site
- Wedge wire: triangular wire, trapezoidal wire
- Support rod: round bar, triangular bar
- End connections: plain end, flange, threaded end, quick connector, custom end design
- Slot tolerance: precision grades controlled within ±0.01 mm
Material
304 stainless steel, 316L stainless steel, 321 stainless steel, 2205, 2507 duplex stainless steel, carbon steel, copper alloy, Hastelloy, Monel and other anti-corrosion alloys.