Technical Reference for Wedge Screens and Elements

Defining elements of Wedge Wire Screen
Material of construction:
Most common materials of construction:304 and 316 Stainless Steels
Other materials:321 and 347 Stainless Steels, Galvanized Steel, Duplex, Super Duplex, Titanium, other alloys.
Slot opening: size of largest admissible particle through screen
Very fine: Under 100 microns - Only available with the smaller range of profile wires. Open area becomes key factor
Fine:100 microns and larger - Choice of profile wires extends to full range for slot openings 500 microns and larger.
Open Area as % of screen surface (OA%): required flow through a unit of screen surface and maximum / minimum pressure drop.
Screen construction: relevant intervening forces which the screen will be subjected to. If there are no relevant forces, screen construction may be defined jointly by slot opening, open area, and available screen fabricating tooling.
Additional structural elements defined by application requirements (may be informed with customer's drawing)
Also available for significant orders:
Custom design of profile wire, support bar, and bar pitch

All dimensions in millimetres
Stucture of mesh on "rear" side
Mesh plate with radiused corners
"Flat" face to be mirror polished stainless steel 316L

Profile Types
Wedge wire is made of several profile types, offering a variety of features. Please choose different profile wire to meet your specific screen requirements.

Flat top wedge wire is the most commonly used profile wire giving good screening efficiency over the whole range in most applications. It is excellent for the de-watering of slurries and is extensively used in coal washers.

Conical top wedge wire is designed particularly for fine mesh screens for de-watering slurries.

Square top wedge wire is suitable for the larger aperture screens used with highly abrasive materials while Riffle top combines most of the de-watering qualities of both flat and conical top profiles and is also widely used as an attractive non-slip finish for drainage grids and walkways.

Wedge Wire Screen Features:
1. V-shaped profile wires have slots which enlarge inwardly and therefore avoid clogging and minimize downtime.
2. Wedge wire has low maintenance costs: Separation at the screen surface which can easily cleaned by scraping or back washing.
3. Maximum process output: Precise and continuous slot openings resulting in accurate separation without loss off media.
4. Low operational costs: Wedge wire screen has large open area with an effective flow, high yield and a low pressure drop (dP)
5. Economical: Flat and smooth surfaces can be cleaned very easily and therefore suitable for pre-served conditions and after cleaning exploitable for many times.
6. Long live: Welded at each intersection creating a strong and durable wire screen.
7. Wedge wire needs reduced installation costs.

 

• How to choose or order wedge wire screens
• V Wire Screen Panel (Wedge Wire Type) Standard Sizes
• Custom Specification Applied for Welded Wedge Wire Panels
• Ends, Flange, Nipples and Accessories for Wedge Wire Screen