 
PolyWound® Series String Wound Cartridge
(Data sheet download 218k)
Advantages
Longer Service Life
PolyWound®
(PLW Series) string wound cartridges offer true
depth filtration with high dirt holding capacity and extremely low
media migration. Thus, even when the particle distribution of the
contaminant is broad, PLW Series cartridges have excellent dirt
holding capacity because of density and structure.
Temperature and Chemical Compatibility
PLW Series offers a wide
selection of wound and core materials so you can select the appropriate
combination for your filtration needs.
Wind materials include utility grade polypropylene, polyester, natural
cotton. Core materials include: polypropylene, 304 and 316 stainless
steel.
Greater Solid Holding Capacity
PolyWound® Series
string wound cartridges and manufactured using a high speed,
continuous wind process which creates a superior one-piece filter
with hundreds of diamond shaped pore openings that get progressively
smaller from the outer diameter to the core. Finer particles are
progressively trapped as fluid travels to the center of the filter
allowing for much greater retention capacity than that which is
associated with straight surface filter media of the same dimensions
and porosity.
Wide Choices of Porosities, Diameters and
Lengths
PLW Series string wound cartridges reject particles
from as low as 1 micron to 200 micron and are available in standard
lengths ranging from 5" to 40" , or longer on special orders. We
offer a standard nominal 30mm inside diameter and optional inside
diameters of 16mm, 28mm, 32mm, 48mm. Our standard outside diameter
is 40mm ,60mm, 63.5mm, 65mm, 115mm. Thus, you can tailor your
filtration system to your specific needs and economics, whether it
be for single pass or recirculation filtration.
Polywound® Series Recommended Applications
 |
R.O. Water purification system
|
|
|
Magnetic Coating |
|
|
Drinking
water system |
|
|
|
Photo Emulsions |
|
|
|
Chemical Processing |
|
|
|
Food and Beverage |
|
|
|
Pharmaceutical |
|
|
|
Photo Processing |
|
|
|
Electronics / Plating |
|
|
|
Oil Patch |
|
|
|
Coatings |
|
|
|
Others |
|
Wound Media and Core Selection Guide
| Media Type |
Description |
| Wound Media |
Polypropylene
Polyester
Natural Cotton |
| Polypropylene |
Economical choice for most
applications in water or corrosives solution for
temperature up to 93ºC/200oF. |
| 304SS |
For high temperature
applications on diluted acids and moderately corrosive fluids. For use
to 750ºF. These cores are vapor helically-welded to eliminate a possible
source of filtrate contamination and vapor degreased to remove trace
amounts of oil or residue prior to winding. |
| 316SS |
For high temperature
applications on strong acids and highly corrosive fluids. For use to
750ºF. These cores are vapor helically-welded to eliminate a possible
source of filtrate contamination and vapor degreased to remove trace
amounts of oil or residue prior to winding. |
General Cartridge Filtration Guide
| 1 |
Cartridge filtration is favored in systems
where the contaminant levels are less than 0.02% by weight
(<100ppm) |
| 2 |
Cartridge need to be replaced when the
differential pressure (AP) approaches 40 psi. |
| 3 |
Never exceed a differential pressure (AP)
of 70 psi because the cartridge could collapse or "unload'
the contaminants. |
| 4 |
Clean initial pressure drop in liquid
applications should be a differential pressure of 2.5-6
psi. |
| 5 |
The lower the flow rate, the greater the
contaminate-holding capacity of the filter tube. Flows in
excess of 5 gpm per 10" tube are not recommended, with 2-3 gpm
being preferred. |
Ordering Information
Perfect
Life International Limited
H3, 3/F, High Win
Bldg., 47 Hoi Yuen Rd., Kwun Tong, Kln., HK
Tel:+852-21210231
Fax:+852-21210230 Email: sales@perfectlife.com.hk
|
Home
Products
APPLICATION NOTES
PolyWound Filter
comes with various retention rating for different size particulates
|
