Tel: +86-136-7151-8833 E-mail: china@johnsonslot.com
- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
When designing an industrial filtration system, the Open Area is one of the most critical factors. It directly determines the flow capacity, pressure drop, and the overall efficiency of your wedge wire screen.
In the wedge wire industry, the open area percentage is determined by the ratio of the slot opening to the total pitch (slot width + wire width). Use the following formula for precision engineering:
Open Area % = [ S / ( S + W ) ] × 100
S (Slot Width): The distance between two adjacent profile wires (Aperture).
W (Wire Width): The width of the surface profile wire (e.g., 12S, 22S, 34S).
Suppose you are selecting a screen for water treatment with a 22S profile wire (width: 2.2mm) and a 0.5mm slot size. The calculation would be:
[ 0.5 / ( 0.5 + 2.2 ) ] × 100 = 18.51% Open Area
| Profile Wire | Wire Width (mm) | Slot Size (mm) | Open Area % |
|---|---|---|---|
| 12S | 1.2 | 0.2 | 14.28% |
| 22S | 2.2 | 0.5 | 18.51% |
| 34S | 3.4 | 1.0 | 22.72% |
Reduced Pressure Drop: Higher open area allows liquid to pass through with minimal resistance, saving energy costs.
Lower Face Velocity: Slowing down the fluid speed at the screen surface prevents "blinding" and protects delicate particles.
Extended Lifespan: Optimized flow distribution reduces localized wear on the V-wire screen profiles.
At Johnsonslot, we help you balance structural integrity with maximum flow efficiency. Need a custom calculation for your project?
