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Mist eliminators (Wire/Vane)

 Shreewire’s Mist Eliminators-Wire Mesh Type






What is Shreewire Mist Eliminator ?

Shreewire Mist Eliminator is fabricated in pad form from symmetrical interlocking loops of knitted metal wire or plastic mono-filaments. The pad with a high free volume and large impingement area,can be installed in any existing or new process vessel to provide separation efficiencies upto 99% for particles down to five microns at pressure drops in the vicinity of 25 mm WC.The Shreewire Mist Eliminator is a static, in-line device and in majority of the cases it can be installed in the evaporator, scrubber, pressure vessel etc., without a special housing. There is practically no maintenance required except for cleaning when used in fouling services.

How Shreewire Mist Eliminator work ?
When vapor carrying en-trained liquid droplets or mist passes through the Shreewire Mist Eliminator, the vapor passes freely through the layered mesh structure of the Shreewire Mist Eliminator but the liquid droplets, having greater inertia, contact the large wire surface exposed and are briefly held there. As more droplets collect, they coalesce and grow in size and become large enough to drain back into the system. The overhead product is pure vapor containing practically no liquid.





Normally Mist Eliminator will remove droplets down to 5 microns with an efficiency up-to 99%. This efficiency will very depending upon the particle size distribution and other operating conditions. Furnished in a wide variety of mesh styles, the Shreewire offers collection efficiency and pressure drop combinations that can be suited exactly to specific process requirements. Special designs are also available with higher efficiencies for specific applications.


Application Configuration

Pressure Drop : Pressure Drop is also a function of separator specifications and is less than
25 mm WC for a majority of applications. In vacuum service, high efficiency is routinely achieved with pressure drop of the order of 5 mm WC.


SHREEWIRE Mist Eliminators Applications
Distillation Equipment
Knockout Drums
Vacuum Towers
Steam Drums


Selections and Size of an Shreewire Mist Eliminator is decided by 
Gas or vapor flow rate and amount of liquid en-trained.
Droplet size distribution and performance requirement.
Allowable design velocity
Physical and chemical properties of the gas and liquid phases.
Material of construction


Installation Details
The wire-mesh pad of the Shreewire Mist Eliminator is sand-witched between a top hold down grid and a bottom support grid. Special grid with a high percentage of open area have been developed for this purpose. The wire-mesh z pad is resilient and is slightly oversize to provide a snug fit in the vessel. The purchaser should provide a 50 to 75mm wide annular support ring drilled with 3 to 6mm diameter holes and welded to the vessel wall. The wire-mesh pad and grid assembly is then fastened securely to the grid using 2mm diameter tie wires (or spacer pipes specifically required with suitable fasteners). Intermediate support beams are also recommended for all spans larger than 1800 – 2000mm.




In addition to the standard and improved styles listed here, specific designs are available for special applications. These include high pressure steam drums, natural gas dehydration plants, multiple effect evaporators, etc




Catalogue    |   Data Sheet

Shreewire’s Mist Eliminators-Vane Type


Operating Principle 
The liquid particles in a gas stream enter the pack with more inertia than the gas molecules.
In the changes of direction due to the presence of vane pack, the droplets gather themselves
in the corrugations by wetting them to get a sufficient size to drop by their own weight.


MOC : SS316/314
Size : As per the quotation
Efficiency : The vane pack is capable to stop at more than 99.5 % the liquid particles which size is above 20 µm and 8µm.


Types of SW-Vane Pack 
The shreewire range of vane pack are the Chevron type of vane pack which consist on a set
of specially designed vanes with a well defined geometry.


Location of Vane Pack

High velocity, high liquid load, fouling and clogging, longer corrosion life, low  pressure drop, high liquid viscosity handle.

Refinery, Gas absorption system, Sulfuric acid plant, Petrochemical plant, Flue gas
de-sulfurization, Low pressure evaporators,Pulp and paper mills.

Operating Conditions 
Operating velocity (Vop)=K v (ñl ñv)/ñv
ñl=liquid density in kg/m3; ñv=gas density in kg/m3; k=0,31 m/s (for V max) k=0,20 m/s (for V calcul) k=0,05 m/s (for V min)
Pressure drop (? P) = 0.3 V2 . ñv



  Catalogue    |   Data Sheet