Description of Metal Fibre Felts
Metal fibre felts are produced from metal fibres in the micrometre range by lapping, laminating and high-temperature sintering. Multiple layered metal fibre felts, composed of layers of metal fibres with varying pore sizes, can achieve a higher filter accuracy and increased particulate retention capacity compared to single-layer felts. Metal fibre felts exhibit a uniform pore size distribution, high permeability and mechanical strength. They are resistant to corrosion and high temperatures, and can be welded, folded and reused. The metal fibre felt is an efficient filter medium suitable for use in high-temperature environments, high differential pressures and corrosive conditions.
Specifications of Metal Fibre Felts
SPECIFICATIONS FOR METAL FIBRE FELTS
|
Type
|
Average Rating
|
Size
|
Note
|
SAM10D
|
10μm
|
≤1 180×1 500mm
|
No meshes
|
SAM15D
|
15μm
|
≤1 180×1 500mm
|
SAM20D
|
20μm
|
≤1 180×1 500mm
|
SAM25D
|
25μm
|
≤1 180×1 500mm
|
SAM30D
|
30μm
|
≤1 180×1 500mm
|
SAM40D
|
40μm
|
≤1 180×1 500mm
|
SAM60D
|
60μm
|
≤1 180×1 500mm
|
SAM10~60DW1
|
10~60 μm
|
≤1 180×1 500mm
|
Mesh on one side
|
SAM10~60DW2
|
10~60 μm
|
≤1 180×1 500mm
|
Mesh on both sides
|
SAM10~20D
|
10~20 μm
|
≤1 180×1 500mm
|
High strength/No meshes
|
SAM10~20DW1
|
10~20 μm
|
≤1 180×1 500mm
|
High strength/Mesh on one side
|
SAM10~20DW2
|
10~20 μm
|
≤1 180×1 500mm
|
High strength/Mesh on both sides
|
PROPERTIES OF METAL FIBRE FELTS
|
Type
|
Rating (μm)
|
Bubble Point Pressure (Pa)±8%
|
Permeability Factor (×10-12 m2)
|
Air Permeability L/min/dm2
|
Porosity Factor (%) (±5%)
|
Particle Retention Capacity (mg/cm2) (±10%)
|
BZ10D
|
≥7.5 to 12.4
|
3 700
|
≥4.5
|
≥90
|
77
|
7.6
|
BZ15D
|
≥12.5 to 17.4
|
2 600
|
≥7.2
|
≥117
|
80
|
8.0
|
BZ20D
|
≥17.5 to 22.4
|
1 950
|
≥18.9
|
≥207
|
81
|
15.5
|
BZ25D
|
≥22.5 to 27.5
|
1 560
|
≥27.0
|
≥297
|
80
|
18.4
|
BZ30D
|
≥27.5 to 34.9
|
1 300
|
≥41.4
|
≥405
|
80
|
25.0
|
BZ40D
|
≥35 to 45
|
975
|
≥54.9
|
≥522
|
78
|
25.9
|
BZ60D
|
≥50 to 70
|
650
|
≥103.5
|
≥1 080
|
87
|
35.7
|
DZ15D
|
≥12.5 to 17.4
|
2 510
|
≥14
|
≥160
|
75
|
---
|
DZ20D
|
≥17.5 to 22.4
|
1 895
|
≥17.5
|
≥260
|
75
|
---
|
CZ15D
|
≥12.5 to 17.4
|
2 500
|
≥20
|
≥190
|
84
|
---
|
CZ20D
|
≥17.5 to 22.5
|
2 000
|
≥36
|
≥300
|
85
|
---
|
Applications of Metal Fibre Felts
* Filtration of polymers
* Filtration in chemical and medical sectors
* Filtration of food and beverages
* Gas, water and pressure dye filtration
* Dust separation for high-temperature gases
* Filtration in oil refineries
* Filtration of viscose fibres
* Pre-filtration in ultra‐filters, protective filters in vacuum pumps
* Carrier for gas filters and catalyst carriers
* Airbags in automotive applications
* Fuel and hydraulic system filtration in aircraft and ships
Packaging of Metal Fibre Felts
The product is externally marked and labelled to facilitate identification and quality control. Measures have been taken to prevent damage during storage or transport.