Encore® String Wound Filter Cartridges

Multi-Purpose Filter Cartridges for Applications Involving Boiler Water Systems

Encore string wound filter cartridges are for the cost-efficient, high-efficiency filtration of fluids. They are available in premium cotton, standard cotton, premium polypropylene, natural cotton, or general-purpose polypropylene filter media and come in retention ratings from 1 – 200 µm.

Pleated Filter Cartridges
Pleated Filter Cartridges
String-Wound Filter Cartridges
String-Wound Filter Cartridges

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Brand

Duo-Fine®

Duo-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Length 20 Inches, silicone, SOE flat closed end external 222 O-rings

Product ID: DFN04520USM3
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
0.45 µm
Cartridge Length (Imperial)
20 in
Cartridge Length (Metric)
508 mm
Cartridge Length (Metric)
50.8 cm
Gasket / O-Ring Material
Silicone
End Configuration Code
M3
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Duo-Fine® , Filter Cartridges, Removal Rating 3 μm, Length 29.25 Inches, Nitrile, Blank - DOE with elastomer gasket seals & end caps

Product ID: DFN32925AN
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
3 µm
Cartridge Length (Imperial)
29.25 in
Cartridge Length (Metric)
743 mm
Cartridge Length (Metric)
74.3 cm
Gasket / O-Ring Material
Nitrile
End Configuration
Blank - DOE with elastomer gasket seals & end caps
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Duo-Fine®, Filter Cartridges, Removal Rating 1 μm, Length 40 Inches, FluorocarbonElastomer, SOE flat closed end external 222 O-rings

Product ID: DFPT140EVM3
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
1 µm
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket / O-Ring Material
Fluorocarbon Elastomer
End Configuration Code
M3
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Duo-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Length 20 Inches, silicone, SOE fin end external 226 O-rings

Product ID: DFNT04520USM7
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
0.45 µm
End Configuration
SOE fin end, external 226 O-rings
Change Out Differential Pressure
2.4 bard

Duo-Fine® II, Filter Cartridges, Removal Rating 3 μm, Length 20 Inches, Nitrile

Product ID: DFNT320UN
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
3 µm
Cartridge Length (Imperial)
20 in
Cartridge Length (Metric)
508 mm
Cartridge Length (Metric)
50.8 cm
Gasket / O-Ring Material
Nitrile
End Configuration
Blank - DOE with elastomer gasket seals & end caps
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Duo-Fine® , Filter Cartridges, Removal Rating 3 μm, Length 30 Inches, Nitrile

Product ID: DFN330AN
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
3 µm
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Nitrile
End Configuration
Blank - DOE with elastomer gasket seals & end caps
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Duo-Fine® , Filter Cartridges, Removal Rating 3 μm, No flange

Product ID: DFNM32UNF
Unit of Measure
4/EA
Min Order Qty
4
Removal Rating
3 µm
End Configuration
No flange (for use with reusable SS flange)
Change Out Differential Pressure
2.4 bard
Cartridge Outer Diameter (OD) (Imperial)
6 in
Cartridge Outer Diameter (OD) (Metric)
15.2 cm

Duo-Fine® , Filter Cartridges, Removal Rating 3 μm, Length 30 Inches, silicone, SOE fin end external 226 O-rings

Product ID: DFN330USM7
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
3 µm
End Configuration
SOE fin end, external 226 O-rings
Change Out Differential Pressure
2.4 bard

Duo-Fine® , Filter Cartridges, Removal Rating 3 μm, Length 20 Inches, Fluorocarbon Elastomer, SOE flat closed end external 222 O-rings

Product ID: DFNT320UVM3
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
3 µm
End Configuration
SOE flat closed end, external 222 O-rings
Change Out Differential Pressure
2.4 bard

Duo-Fine® II, Filter Cartridges, Removal Rating 1 μm, Length 10 Inches, silicone

Product ID: DFNT110USM7
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
1 µm
End Configuration
SOE fin end, external 226 O-rings
Change Out Differential Pressure
2.4 bard

Duo-Fine® , Filter Cartridges, Removal Rating 1 μm, Length 10 Inches, Nitrile, Blank - DOE with elastomer gasket seals & end caps

Product ID: DFN110AN
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
1 µm
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
Gasket / O-Ring Material
Nitrile
End Configuration
Blank - DOE with elastomer gasket seals & end caps
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Duo-Fine®, Filter Cartridges, Removal Rating 3 μm, Length 10 Inches, silicone, Blank - DOE with elastomer gasket seals & end caps

Product ID: DFN310AS
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
3 µm
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
Gasket / O-Ring Material
Silicone
End Configuration
Blank - DOE with elastomer gasket seals & end caps
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198 Items

Applications/Use

Oil and Gas:

  • Upstream - Injection water & SRU, offshore boiler water, offshore produced water and onshore surface discharged water
  • Midstream – Process water

Specifications

*Please refer to the documentation for additional specifications.

 

Filter Grades: 1, 3, 5, 10, 20, 25, 30, 40, 50, 75, 100, 200 µm

 

Materials of Construction

 

Filter Media: Bleached FDA-listed cotton, standard cotton, natural cotton, FDA-listed polypropylene, standard polypropylene

 

Material Selection Guide

Filter Medium Premium Cotton1 Standard Cotton Natural Cotton Premium Polypropylene1 Standard Polypropylene

 

Maximum Temperature

Electrolytic Tin Plated Steel Core 300°F (149°C) 300°F (149°C) 300°F (149°C) 275°F (135°C) 275°F (135°C)
Stainless Steel Core 300°F (149°C) 300°F (149°C) 300°F (149°C) 275°F (135°C) 275°F (135°C)
Polypropylene Core 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C)

 

Compatibility with:

Food Excellent NR NR Excellent NR
Beverages Excellent NR NR Excellent NR
Potable Water Excellent NR NR Excellent NR
Organic Solvents Excellent Excellent Excellent Good Good
Oils Excellent Excellent Excellent Fair Excellent
Organic Acids Good Good Good Excellent Excellent
Alkalis Good Good Good Excellent Excellent
Oxidizing Agents Fair Fair Fair Good Good
Steam NR NR NR Fair NR
Strong Inorganic Acids NR NR NR Excellent Excellent
Dilute Inorganic Acids Fair Fair Fair Excellent Excellent
Micro-organism Resistance Poor Poor Poor Excellent Excellent

 

1 - FDA-listed materials. NR = Not Recommended

Documents

Data Sheets

  • Encore® Series Filter Cartridges

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