Self-Cleaning Backwash Filter Screen Element in 316L Stainless Steel (AISI 316L (1.4404)) is used for filtering water and process liquids continuously in automatic self-cleaning filters, where a sintered-mesh or wedge-wire cylinder is back-washed by a suction scanner without stopping flow. The alloy gives superior resistance, including chlorides, brines, food CIP and mild acids and is essentially non-magnetic, with a practical service limit of approx. +550 °C continuous.
Alloy Properties
| Grade designation | AISI 316L (1.4404) |
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| Magnetic response | Essentially non-magnetic |
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| Service temperature | approx. +550 °C continuous |
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| Corrosion characteristic | Superior resistance, including chlorides, brines, food CIP and mild acids |
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Specifications of Self-Cleaning Backwash Filter Screen Element Available in 316L Stainless Steel
| Size | Outer diameter (mm) | Length (mm) | Micron rating (u00b5m) | Construction |
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| u00d8100 u00d7 500 | 100 | 500 | 50 | 4-layer sintered mesh cylinder |
| u00d8150 u00d7 800 | 150 | 800 | 100 | 4-layer sintered mesh cylinder |
| u00d8200 u00d7 1000 | 200 | 1000 | 200 | Wedge wire + woven liner |
Where 316L Stainless Steel Self-Cleaning Backwash Filter Screen Element Is Used
- Cooling water: automatic filters on cooling towers and heat exchangers.
- Irrigation: automatic filters on center pivots and drip systems.
- Desalination: seawater pre-filters ahead of RO membranes.
- Process water: steel mills, paper machines and food plants.
Ordering Self-Cleaning Backwash Filter Screen Element in 316L Stainless Steel
- Element size: Match the filter housing diameter and length.
- Rating: 25–500 µm chosen for the downstream equipment.
- Construction: Multi-layer sintered mesh for fine ratings; wedge wire for coarse, abrasive water.
Mistakes to Avoid with Self-Cleaning Backwash Filter Screen Element
- Choosing too fine a rating, so the filter backwashes continuously.
- Running with a torn layer that lets debris through.
