Customized Wedge Wire Stainless Steel 316L Oil Filter Element Hydraulic Filter from China Manufacturer

Product Description

A wedge wire filter element (often called a Johnson screen filter) is a surface filtration device. It is constructed by wrapping or arranging V‑shaped (wedge‑shaped) profile wires around a cage of longitudinal support rods and resistance‑welding them at every intersection. This creates a rigid cylindrical screen with continuous, precisely controlled slots.

In summary, the wedge wire filter element combines precise slot geometry with a V‑shaped opening, delivering surface filtration that is exceptionally resistant to clogging and highly effective for high‑pressure, high‑temperature, or heavy‑duty solid‑liquid separation applications.

Technical Parameters

Parameter	Specification
Material	Stainless Steel 316L
Maximum Temperature	500°F (260°C)
Maximum Pressure	10 bar
Filtration Type	Wedge Wire Stainless Steel Mesh
Reusability	Yes

Working Principle

Filtration Principle (Outside‑In Flow, the most common configuration)

The wedge wires are oriented with their wider face facing outward and the narrower face inward. This means that each slot between two adjacent wires has a V‑shaped cross‑section that widens toward the inside — the narrowest gap is at the outer surface, and the passage becomes wider as the fluid moves inward.

Filtration: Liquid passes through the screen from the outside to the inside. Solid particles larger than the slot width are retained on the outer surface at the very point of entry. Because the slot opening is the narrowest point, particles are unable to pass through, and they do not become wedged deep inside the slot.
Non‑Blinding and Easy Cleaning: Since the trapped particles make only point contact with the surface, they do not lock themselves into the screen. This gives the wedge wire filter element its characteristic non‑blinding behaviour. During backwashing (reverse flow from inside to outside), the wider internal passage releases the particles effortlessly, quickly restoring the clean pressure drop.
Filtration Rating: The width of the continuous slot (ranging from as fine as 25–50 microns up to several millimetres) defines the absolute filtration rating. The rigid all‑welded construction ensures the slot remains constant under high differential pressure.

Reverse Flow Configuration

In some designs, flow is from inside to outside. The wedge wires are then oriented with the wide face inward. The principle remains the same: the narrowest point of the V‑shaped slot faces the incoming fluid, capturing particles on the inner surface and making the element just as easy to clean.

In summary, the wedge wire filter element combines precise slot geometry with a V‑shaped opening, delivering surface filtration that is exceptionally resistant to clogging and highly effective for high‑pressure, high‑temperature, or heavy‑duty solid‑liquid separation applications.

Wedge Wire Filter Element Key Selling Points

1. Factory Direct Supply – Competitive Price & Fast Delivery： Direct from the manufacturer, ensuring stable quality, lower cost, and flexible customization for global industrial buyers.
2. Premium 316L Stainless Steel Material： Made of high-grade 316L stainless steel, offering excellent corrosion resistance, acid-alkali resistance, and long service life in harsh environments.
3. 80 Mesh Precision Filtration (≈180–200 Micron)： Provides stable coarse-to-medium filtration performance, effectively protecting pumps, valves, and downstream equipment.
4. Anti-Clogging Wedge Wire Structure： V-shaped wire design ensures self-cleaning ability, reduced clogging risk, and continuous high-flow operation.
5. High Pressure Resistance & Long Service Life： Fully welded structure ensures strong mechanical strength and deformation resistance, suitable for continuous industrial operation.
6. Reusable & Low Maintenance Cost： Supports backwashing, ultrasonic cleaning, and high-pressure washing, significantly reducing replacement frequency.

Advantages

Our factory spans a production area of 26,000 square meters, reflecting a solid manufacturing foundation and large-scale production capacity. This extensive facility is equipped with multiple automated production lines, allowing us to handle high-volume orders and urgent deliveries without compromising on precision. The scale of our operations also enables us to maintain a comprehensive inventory of raw materials, ensuring a stable supply and competitive pricing.

We hold ISO 9001 certification for quality management and CE certification for our products, demonstrating full compliance with rigorous international standards. These certifications not only prove our technological capability but also give our global customers confidence in the safety and reliability of our filtration solutions. With strong manufacturing capability, we are often able to complete new product development and production.

With over 20 years of export experience, we have established a proven track record of delivering filter elements to markets. This long history means we thoroughly understand international documentation, packaging, and logistics requirements. We have successfully supported customers in many other industries, building long-term partnerships through responsive after-sales service and consistent delivery performance.

We operate a comprehensive quality inspection system that covers every stage of production, from incoming raw material verification to in-process checks and final product testing. Our dedicated quality control team uses advanced optical measurement instruments, slot gauge verification, and pressure resistance testing to ensure each filter has its specified filtration rating and mechanical strength.

Company Show

Henan Top Environmental Protection Equipment specializes in advanced filter cartridges and housings, serving over 100 global industrial markets. Our integrated factory features rolling, slitting, welding, and automated assembly lines, enabling high-efficiency production and consistent product quality at scale.

Dedicated sales and after-sales teams provide technical guidance, timely communication, and seamless global support to ensure customer satisfaction. With over fifteen years of export experience, we deliver competitive, innovative, and sustainable filtration solutions to markets across North America, Europe, and the Middle East.

Rigorous quality assurance is upheld through CE and ISO certifications, batch traceability, and experienced inspectors, ensuring reliable, high-performance filters. Our intellectual property portfolio, including multiple R&D patents, demonstrates technological leadership and ongoing innovation in metallic filtration solutions. Our professional R&D team develops fully customized filtration solutions tailored to client specifications—including materials, dimensions, and operating environments.

FAQ

Q1:What is the advantage of a wedge wire structure compared to mesh filters?

A1:Wedge wire filters provide a non-clogging V-shaped profile, which reduces blockage risk and improves flow efficiency compared to traditional woven mesh filters. It also offers higher mechanical strength and longer service life.

Q2: Can the size or mesh be customized?

A2: Yes. We support customization of:

Diameter (OD)
Height/length
Mesh size (10–300 mesh available)
Connection type (flange, threaded, welded)
Material (304 / 316 / 316L / duplex stainless steel)

Q3: How is this filter manufactured?

A3: It is produced using precision wedge wire welding technology, where V-shaped stainless steel wires are welded onto support rods to form a rigid cylindrical filtration structure with uniform slot openings.