Duo-Fine P Filter Cartridges

Summary

Product identification

The DUO-FINE® P Series Filter Cartridges are high surface area pleated cartridges featuring polyester hardware, designed for excellent retention and high contaminant holding capacity. They are available in retention ratings from 0.2 to 50 µm. The manufacturing process uses thermal bonding to eliminate epoxies, adhesives, and glues, and is performed under an ISO 9001 Quality System.

Performance Specifications

• Filter Grades (normally rated): 0.2, 0.45, 1, 3, 10, 30, 50 µm

Materials of Construction

• Filter Media: Borosilicate Microfiberglass with Acrylic Binder
• Support Material: Polyester
• Hardware: Polyester
• Sealing: Thermal Bond
• Gaskets/O-rings: Viton A, Buna N, Nordel, Silicone Elastomer, FEP Encapsulated Silicone

Dimensions (nominal)

• Outside Diameter: 2 1⁄2" (6.4 cm)
• Lengths (tip-to-tip): 10" (25.4 cm), 20" (50.8 cm), 30" (76.2 cm), 30 9⁄10” (78.5 cm), 40" (102 cm)

Operating limits

• Recommended Change Out Differential Pressure: 35 psid (2.41 barg)
• Maximum Differential Pressure:
  • 75 psid (5.2 barg) @ 68°F (20°C)
  • 40 psid (2.8 barg) @ 200°F (93°C)
• Maximum Operating Temperature: 200°F (93°C)

Particle Retention

Particle retention data for liquid service (by ASTM F-795 Test) and gas service (by DOP Test) is provided:

Note: N/A indicates data not provided in the extracted text.

Ordering Information

The part numbering system follows the format DFPT I – G E N – M.

• I (Filter Grades):
  • 0.2: 0.2 µm
  • 0.45: 0.45 µm
  • 1: 1 µm
  • 3: 3 µm
  • 10: 10 µm
  • 30: 30 µm
  • 50: 50 µm
• G (Cartridge Lengths nominal):
  • 10: 10"
  • 20: 20"
  • 30: 30"
  • 30.9: 30.9”
  • 40: 40"
• E (Gasket/O-ring Materials):
  • S: Silicone
  • N: Buna N
  • E: Nordel
  • V: Viton A
  • T: FEP Encapsulated Silicone (O-rings)
• N (End Configurations):
  • M: DOE with elastomer gasket seals & end caps
  • M3: SOE flat closed end, external 222 O-rings (retrofits other manufacturers’ Code 0)
  • M8: SOE fin end, external 222 O-rings (retrofits other manufacturers’ Code 5)

Mechanical / hydraulic

A graph illustrates typical flow versus differential pressure for application sizing. It shows differential pressure (psid/Bar) against flow rate (gpm/lpm) for various filter grades (0.2 µm, 0.45 µm, 1 µm, 3 µm, 10 µm, 30 µm, 50 µm) for water at 68°F (20°C). Flow rate is specified per 10" (25.4 cm) cartridge. For liquids other than water, the pressure drop should be multiplied by the fluid's viscosity (cP).

Disclaimer

This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions found in the official PDF. For contractual data, please refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror