The pressure filter leaf is the key filtration element used in pressure leaf filtration systems. Its core filter media is typically a stainless steel composite woven mesh, allowing the system to operate without disposable filter cloths; this “filter cloth-free” design significantly improves durability and simplifies maintenance.
Customized Solutions
Our premium filter leaf are engineered using high-grade stainless steel wire mesh to ensure exceptional durability, precise filtration, and long-term reliability in demanding industrial environments.
- Material: Stainless steel 316, 304 and other alloy steels.
- Mesh count: 0.03–0.5 mm
- Mesh count: 16–325 mesh
- Aperture width: 0.043–1.19 mm
- Open screening area: 30.4%–61%
- Weave Type: Plain weave, twill weave, dutch weave.
- Wire Edge: Woven edge (for wire cloth in rolls or disc without rims).
- Elements: Disc, circular ring, cylinder, basket, cone, oval, dome and bespoke shapes.
Common Specifications (Customizable)
| Construction | Mesh | Wire Thickness (mm) | Aperture (μm) |
|---|---|---|---|
| 1 layer of drainage mesh | Plain weave, 4 × 4 | 1.6 | 4750 |
| 2 layer of support mesh | Plain weave, 8 × 8 | 0.7 | 2470 |
| 2 layer of fine filter mesh | Plain weave, 60 × 60 | 0.18 | 240 |
| 2 layer of fine filter mesh | Plain dutch weave, 24 × 110 | 0.54 | 152 |
| 2 layer of fine filter mesh | Plain dutch weave, 24 × 128 | 0.58 | 75 |
| 2 layer of fine filter mesh | Plain dutch weave, 30 × 150 | 0.53 | 85 |
| 2 layer of fine filter mesh | Reverse plain dutch weave | 0.77 | 91 |
| 2 layer of fine filter mesh | Reverse dutch twill weave | 0.73 | 100 |
Working Principle
- The slurry is fed into a closed pressure vessel.
- Pressure is applied using a pump or compressed air.
- Liquid passes through the filter medium on the leaf surface.
- Solid particles are retained, forming a filter cake on the surface.
- The filtrate flows through internal channels and is discharged.
- After filtration, cake discharge is achieved by air blowback or vibration.
Application Industries
It is widely applied in industries such as edible oil refining, chemicals, pharmaceuticals, and fine chemicals for solid-liquid separation, decolorization, and clarification processes.
Crude oil filtration, catalyst recovery, and processing of petroleum derivatives.
Aggressive chemical processing, active ingredient purification, and sterile gas/liquid separation.
Edible oil filtration, sugar processing, beverage clarification, and food-grade safety screening.
Heavy-duty solid/liquid separation, ore sorting, and slag processing.
High-precision hydraulic fluid filtration, aviation fuel screening, and protective component manufacturing.