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
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