304 wire mesh demister pad, Demister Separator, 316 demister pads
What is a Demister?
DEMISTERs are essential in many process operations for the removal of
entrained material in vapour flow. Demister ASIA’s Demisters and mist eliminators provide a wide range of
solutions suitable for any application.
The principle of a Demister operation is based on having a large number of obstacles
intercepting entrained droplets in a vapour flow. These obstacles
must provide minimum drop in pressure over the removal system.
Wire Mesh Demister
Wire Mesh Material: Stainless steel wire, nickel wire, copper wire, galvanized wire,
iron wire, monel wire.
Demister of wire mesh pad is also known as mist eliminators or sprays. This
is a kind of high efficiency separation devices, used throughout
all kinds of process industries, to remove liquid droplets from gas
or vapor streams.
Wire mesh demister pads are used in chemical, petroleum, sulfate,
medicine, light industry, metallurgy, machine, building,
construction, aviation, shipping and environment protection.
Demister pad is mainly used to eliminate streams with diameter of
more than 3μm to 5μm.
Features of Wire Mesh Demister:
1. Simple structure with light weight.
2. Less pressure drop and big surface.
3. High demisting efficiency.
4. It is convenient for installation, operation and maintenance.
5. Long service life.
How a Demister Works:
Mist eliminators/ Demisters are fabricated from knitted materials
with interlocking asymmetrical loops of metal or plastic with
typical diameters of 0.1 – 0.3mm. By careful choice of wire
diameter, DemisterASIA has produced demisters with extremely high
free volumes (typically 98 – 99%) along with very high removal
efficiency and low pressure drop.
Along with wire diameter and mesh density, another important
parameter in design and operation of a demisters is the vapour
velocity. This can be controlled by careful selection of the
eliminator area. Optimal area will depend on operating temperature,
pressure and pressure drop. Under normal operating conditions more
than 99% removal efficiency can be achieved with a pressure drop of
less than 250 Pascals.
Specification List of Filter Mesh |
Model | Specification | Wire Diameter
mm | Materials | Area/Weight
m2/kg | Technical Notes |
Standard | 40-100 Model
60-150 Model
140-40 Model
40-100 Model
40-100 Model
40-100 Model
40-100 Model | 0.1x0.4
0.1x0.4
0.1x0.4
0.27
0.1x0.4
0.25
0.2 | stainless steel wire
stainless steel wire
stainless steel wire
gal. iron wire
copper wire
polyamide fiber
PVC fiber | 1/0.5 " " 1/0.7
| 1, For 40-100 model: 40 holes in 100% width 2, Metal filter mesh can be processed into weaves type |
Stock Materials commonly used:
Stainless Steel: Grades 302, 304, 316, 316L, 321, 309, 310S
Super Alloys: Inconel 601, Incoloy DS, Hastaloy, Carpenter 20
Fibrous Filament: ‘E’ Glass, ‘S’ Glass, ‘A’ Glass, Basalt, Ceramic,
Silica, Kevlar
Others: Aluminium, Monel, Copper, and Brass, Mild Steel (plain and
galvanised), Polypropylene, Polyethylene
Why Demisters from DemisterASIA?
Elimination of DA demisters are dependent on droplet sizes:
5 – 9 micron 99%
> 10 micron 99.5%
Most of the weight of entrained mist tends to be associated with
the larger mist particles (larger than 5 – 10μm) thus providing
greater than 99.99% weight removal.
