Categories: Wedge Wire Mesh
We are designer and manufacturer of Process Vessel Reactor internals for the Oil, Gas and Petrochemical Industries.
Our reactor internals are applicasted for media retention for both axial flow and for radial flow reactors.
Flat, framed and unframed support grid can be manufactured with rectangular or round support rods.
Support Grid magnify vibration with drum-tight tension and withstand violent vibrating action.
Profile wire Support Rod
0.75*1.5mm 2*3mm
1.0*2.0mm 2*3mm
2.0*3.0mm 3*5mm
2.0*4.0mm 3*5mm
3.0*5.0mm 3*5mm
Large open slots increase screening efficiency and promote precise sizing.
The design enhances efficiency by substantially reducing blinding and pegging.
The integral welded construction eliminates weak points, providing exceptional load-bearing capacity to prevent catalyst bed deformation or collapse, even when supporting heavy catalyst layers in large-scale reactors.
Constructed from premium materials tailored to application requirements, the screen offers superior durability and longevity. Standard options include 304/316L stainless steel for general corrosion resistance, while specialized alloys such as Hastelloy, Inconel, or duplex stainless steel are available for extreme environments involving high temperatures (up to 1200℃), strong acids, alkalis, or hydrogen-rich media. The smooth wedge wire surface resists residue buildup and catalyst particle adhesion, reducing clogging risks and minimizing maintenance downtime—an essential benefit for continuous industrial operations.
Whether for small pilot reactors or large-scale industrial units, it provides a tailored solution that balances structural stability, flow dynamics, and catalyst retention.
Widely utilized in petroleum refining, petrochemical production, catalytic reforming, hydrotreating, hydrocracking, desulfurization, denitrification, and chemical synthesis processes, this support screen is a reliable choice for enhancing reactor performance, extending catalyst service life, and reducing overall operational costs. Its combination of precision engineering, durability, and adaptability makes it an indispensable component in modern catalytic reaction systems.
This innovative design delivers two key advantages: first, it minimizes pressure drop across the screen, ensuring unobstructed flow of reaction gases or liquids; second, it enables uniform fluid distribution, maximizing contact efficiency between reactants and catalysts to optimize reaction yields.
Non-clogging construction: The v-shaped wires and support rods is welded together by automatic resistance welding, which ensures a two- point contact between the particles and the slot,which minimizes clogging of near size product.
Strong construction: for most applications the wedge wire is self-supporting because of the welding at each intersection and can therefore withstand high pressure(Psi) and heavy loads.
Smooth Surface Filtration: very good smooth filtration surface, which reduce mechanical wear.
High-precision slot opening: Minimum Slot opening is 20 microns.
A Wedge Wire Support Grid is a custom-engineered industrial component fabricated by welding V-shaped wedge wires, support rods, and metal frameworks. Its two core functions are: first, to bear both dead loads (the weight of the media bed, such as catalysts or sieve beads) and live loads (pressure differentials during system operation); second, to form precise continuous slots that retain costly process media, preventing their loss while ensuring unobstructed fluid or gas flow. It is widely used in reactors, towers, and other vessels where media bed stability and filtration accuracy are critical
The choice of material depends on the operating environment (temperature, corrosion level, and media type). Common materials include stainless steel grades such as 304, 304L, 316, 316L, and 321. For harsh conditions involving extreme corrosion, high temperatures, or aggressive media, premium alloys like duplex stainless steel and Hastelloy are also utilized. These materials ensure excellent durability, corrosion resistance, and structural integrity under extreme industrial conditions
Yes, Wedge Wire Support Grids are fully custom-engineered (not off-the-shelf products) to meet specific application requirements. Customizable aspects include: slot size (ranging from as small as 20 microns to larger sizes based on media particle size), diameter (200 mm to 2500 mm or more), section design (integral for small diameters, or segmented into 2, 3, 4, 6, 8 parts for easy installation through manways), wedge wire and support rod dimensions (e.g., 1×2 mm, 3×5 mm), and shape (circular, rectangular)
The anti-clogging performance stems from its unique V-shaped wedge wire design. The continuous slots formed by welding wedge wires to support rods create a two-point contact with media particles, minimizing surface adhesion. Unlike woven meshes or perforated plates with sharp edges, the smooth V-shaped surface reduces particle embedding (known as “blinding” or “pegging”). Additionally, the high open area of the continuous slot design facilitates fluid flow, further reducing clogging risks and simplifying cleaning
Integral grids are one-piece structures, suitable for small-diameter vessels (typically with diameters below a certain threshold) where installation through manways is feasible. They offer superior structural stability and eliminate potential media bypass at segment joints. Segmented grids are split into multiple sections (e.g., 4 or 6 parts) and assembled inside the vessel using bolting bars. They are designed for large-diameter vessels where one-piece installation is impractical. L-bolts can secure each segment to the vessel weld ring to prevent uplift, and rope packing is used around the periphery to avoid media bypass along the vessel wall.
They are widely applied in industries requiring media bed support and precision filtration, including: petrochemical and refining (catalyst bed support in hydrogenation and desulfurization reactors), food and beverage (false bottoms in beer brewing mash tuns), water treatment (carbon filters), pharmaceutical processing, and molecular sieve systems. Their versatility makes them ideal for radial flow reactors, downflow reactors, and any vessel where media retention and load-bearing capacity are essential .
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