String Wound Cartridges

W & WQ Series with Leading-Edge Depth Loading Technology

Product Information

  • AMBF’s string wound elements are manufactured in-house on custom, high-speed, computer- controlled machines for perfect thread spacing
  • Customized patterns and spacing offered to adapt to your specialized applications
  • Our ink and paint elements have a 3-stage multi pattern winding process offering true depth loading and prevents core blinding
  • With 6 media selections and 13 micron ratings, we are sure to produce the element you require
  • All end cap configurations available to fit your existing housing
  • FDA polypropylene and cotton constructed elements are FDA acceptable under CFR title 21 for food and potable water contact
  • Standard diameters are 2.5 and 4.5 inches
  • Standard lengths from 9.75 up to 40 inches
  • “WS” String Wound Cartridges are Tested and Certified to:
    • NSF/ANSI 61 Standard &
    • NSF/ANSI 42 Standard for Component
String Wound Cartridges
String Wound Cartridges
Download Cut Sheet


Product Specifications

Media Maximum Temperature Applications
N – Natural Cotton 300°F
150°C
Same (non-FDA) applications as bleached cotton.
C – Bleached Cotton FDA 300°F
150°C
For potable liquids, vegetable oils, beverages, organic solvents, water, dilute acids, petroleum oils and other services.
P – Polyester 250°F
121°C
Chemical compatibility similar to cotton and polypropylene. Has a higher temperature resistance than polypropylene in most cases.
E – Polypropylene 180°F
82°C
Filtration of organic acids, alkalis, solvents and many other chemicals. Very effective in low viscosity solutions.
S – Polypropylene FDA 180°F
82°C
Same chemical compatibility as polypropylene but complies with FDA regulations that permits contact with food and edible products.
R – Rayon 300°F
150°C
Chemical compatibility similar to cotton. Used primarily in filtration of petroleum oils.
Caps & Cores Maximum Temperature Characteristics
S – Tinned Steel 375°F
191°C
General purpose applications
P – Polypropylene FDA 180°F
82°C
For lower temperature applications of corrosive fluids and gases. Easily incinerated to a trace of ash.
4 – 304 Stainless Steel 750°F
399°C
For high temperature dilute acids and moderately corrosive fluids.
6 – 316 Stainless Steel 750°F
399°C
For high temperature applications and highly corrosive fluids.
Gaskets & O-Rings Maximum Temperature Characteristics
V – Viton 300°F
149°C
Very good resistance to water, alkalis and many acids. Poor resistance to oils, gasoline and most solvents (except oxygenated).
V – Viton 450°F
232°C
Can be used at high temperature with many fuels, lubricants, hydraulic fluids and solvents.
T – Teflon 500°F
260°C
Excellent resistance to almost all chemicals and solvents. Good heat resistance, exceptionally good low-temperature properties.
S – Silicone 600°F
316°C
Excellent heat resistance. Fair water resistance, poor resistance to steam at high pressures. Fan to good acid and alkali resistance, poor resistance to oils and solvents.
N – Neoprene 250°F
121°C
Good resistance to non-aromatic petroleum, fatty oils, solvents (except aromatic, chlorinated or ketone types). Good water and alkali resistance, fair acid resistance.
E – EPDM 300°F
149°C
Very good water resistance. Excellent resistance to oils and gasoline. Fair to good resistance to acids and alkalis.


Building a Product Number

String Wound Media Micron Cartridge
Diameter
Cartridge
Length
Core
Material
Core
Cover
Polypropylene
End Cap (Help?)
Gasket/O-Ring
W P 10 S 3 E X 1
W = Standard
WQ = Ink & Paint
N = natural notton
C = bleached cotton FDA
P = polyester
E = polypropylene
S = polypropylene FDA
R = rayon
.5
1
3
5
10
20
25
30
50
75
100
125
150
S = 2.5" Standard
M = 4.5" *
C = Custom
2 = 9.75
3 = 10
4 = 19.5
5 = 20
6 = 29.5
7 = 30
8 = 39
9 = 40
E = Polypropylene
T = Tinned Steel
4 = 304 SS
6 = 316 SS
X = No cover
E = Polypropylene
P = Polyester
N = Nylon
S = Custom
1 = DOE/no caps
2 = 222/Fin
3 = 222/Spring
4 = 222/Flat
5 = 226/Flat
6 = 226/Fin
7 = 226/Spring
8 = SOE/Spring
9 = Flat Gasket
A = Custom
DOE = No
selection req.
B = Buna
V = Viton®
T = Teflon®
S = Silicone
N = Neoprene
D = EPDM

*For the 4.5" diameter cartridge, only DOE end caps are available

√ Cartridge Combinations - Tested & Certified to: NSF/ANSI 61 & 42 Standard - Component



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