Flat Filters (Spin Pack Filters)
Flat Filters (Spin Pack Filters)
- High strength, durability, and pressure resistance.
- Excellent temperature, acid, alkali, and wear resistance.
- Increases material flow resistance to improve mixing/plasticizing.
- Customizable shapes, edge wrapping materials, and layer numbers.
Advanced Spin Pack Filtration
Spin pack filters are engineered to remove mechanical impurities and improve the plasticizing and mixing effects of polymer melt flows. By stamping and pressing multiple layers of metal mesh (like stainless steel sintered fiber, wire mesh, or dutch weave) into edge-wrapping rings, they ensure reliable flow filtration in demanding production lines.
Commonly applied in mining, petroleum, chemical, food, medicine, machinery manufacturing, and chemical fiber spinning industries. In the chemical fiber industry, they are essential for removing particles under spinning nozzles to prevent blockages and guarantee uniform yarn quality.
Key Applications:
- Textile raw fluid filtration under spinning nozzles in chemical fiber manufacturing.
- Filter press oil filtration and lubrication systems for marine diesel engines.
- Industrial thin oil lubrication systems.
- High-temperature, high-viscosity fluid purification in petrochemical and metallurgical operations.
Filter Configurations
Spin pack filters can be manufactured in various structural styles to match machine types and flow requirements:
Flat Surface1. Flat Surface Spin Pack Filters
The screen surface of this spin pack filter is flat, offering uniform pressure distribution.
- Shapes: Round, rectangular, semicircular, waist-shaped, hollow, and customized special shapes.
- Edge Wrapping Materials: Aluminum, copper, stainless steel, and rubber.
- Surface Treatments: Copper edge nickel-plated, aluminum edge anodized dyeing treatment.
- Filter Media: Sintered fiber, dutch weave, and stainless steel wire mesh.
2. Pleated Spin Pack Filters
Pleated construction provides a significantly larger filtration surface area compared to flat designs, increasing dirt holding capacity and lifetime.
- Shapes: Round, rectangular, semicircular, waist-shaped, hollow, and complex custom geometries.
- Edge Wrapping Materials: Aluminum, copper, stainless steel, and rubber.
- Surface Treatments: Copper edge nickel-plated, aluminum edge anodized dyeing.
- Filter Media: Sintered fiber, dutch weave, and wire mesh layers.
3. Cylindrical / Conical Filters
These filters are formed into cylindrical or conical shapes to fit pipeline and filter housings.
- Edge Wrapping Materials: Aluminum, copper, and stainless steel.
- Surface Treatments: Copper edge nickel-plated, aluminum edge anodized dyeing.
- Filter Media: Sintered fiber, dutch weave, and wire mesh.
4. SPL Filter (Disc Screen)
Composed of different metal meshes and a support frame, stamped and assembled into an edge-wrapped ring.
- Features: High mechanical strength, high oil permeability, reliable filtration accuracy, and easy backwashing/cleaning.
- Application: Thin oil lubrication systems, marine engines, and filter presses.
SPL Filter Model Parameters
Below are the standard specifications and sizes for SPL mesh-type filters:
| Model | Nominal Diameter (DN) | Rated Flow m³/h (L/min) | Size (mm) | ||
|---|---|---|---|---|---|
| Binocular Series | Monocular Series | ID | OD | ||
| SPL15 | - | 15 | 2 (33.4) | 20 | 40 |
| SPL25 | DPL25 | 25 | 5 (83.4) | 30 | 65 |
| SPL32 | - | 32 | 8 (134) | ||
| SPL40 | DPL40 | 40 | 12 (200) | 45 | 90 |
| SPL50 | - | 50 | 20 (334) | 60 | 125 |
| SPL65 | DPL65 | 65 | 30 (500) | ||
| SPL80 | DPL80 | 80 | 50 (834) | 70 | 155 |
| SPL100 | - | 100 | 80 (1334) | ||
| SPL125 | - | 125 | 120 (2000) | 90 | 175 |
| SPL150 | DPL150 | 150 | 180 (3000) | ||
| SPL200 | DPL200 | 200 | 320 (5334) | ||
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