GDPES

Summary

Product identification

The GDPES-Series DuoGrade™ Serial Layer Polyethersulfone Filter Cartridges feature a Microglass prefiltration layer and are designed for extended life and excellent retention. This serial construction makes them ideal for clarifying particulate-heavy solutions in various food/beverage, pharmaceutical, biological, and chemical applications. They offer excellent flowrates, low pressure drops, and superior throughput volumes, suitable for use as final filters or to protect downstream sterilizing grade cartridges.

Each cartridge is flushed with 18 megaohm High Purity deionized water and integrity tested to ensure clean effluent with low extractables. They are designed to tolerate repeated hot water sanitization and in-situ steam sterilization cycles for maximum service life.

Typical Applications:

• Wine, Beer, & Spirits
• Bottled Water, Juices, Soft Drinks
• Cell Culture Media
• Large Volume Parenterals
• Bulk Pharmaceutical Solutions

Operating limits

• Recommended Change Out ΔP: 35 PSID
• Maximum Temperature: 176˚F (80˚C)
• Maximum Differential Pressure: 50 PSID (3.4 bar) at 68˚F (20˚C)

Product water

After flushing, the cartridges deliver clean effluent with low extractables.

Mechanical / hydraulic

Construction Materials:

• Membrane: Polyethersulfone
• Support Media: Microglass
• End Caps: Polypropylene
• Center Core: Polypropylene
• Outer Support Cage: Polypropylene
• O-Rings/Gaskets: Buna, EPDM, Silicone, Teflon® Encapsulated Viton®, Viton®, Teflon® Encapsulated Silicone

Dimensions:

• Length: 10 to 40 inches (25.4 to 101.6 cm) nominal
• Outside Diameter: 2.70 inches (7.0 cm) nominal

Sanitization/Sterilization:

• Filtered Hot Water: 80˚C for 30 min.
• Steam Sterilization: 121˚C for 30 min., multiple cycles
• Chemicals: Compatible with most chemical sanitizing agents.
• Note: A stainless steel insert option is required for all cartridges being hot water sanitized or steam sterilized.

Flow Rate vs Pressure Drop: See the official PDF for exact tabulated values.

Performance

Microbial Retention Performance: (Independently tested in accordance with ASTM F838)

• 0.2µ Rating: Brevundimonas diminuta (7.6 Log Reduction Value (LRV))
• 0.45µ Rating: Serratia marcescens (6.6 LRV)
• 0.65µ Rating: Saccharomyces cerevisiae (4.8 LRV)

Toxicity: All polypropylene components meet the specifications for biological safety per USP Class VI – 121˚C for plastics.

Food Safety Compliance: Materials of construction comply with FDA regulations for food and beverage contact use as detailed in the US Code of Federal Regulations, 21CFR. Materials used to produce filter media and hardware are deemed safe for use in contact with foodstuffs in accordance with EU Directives 2002/72/EC, 1935/2004, and/or 10/2011.

Ordering Information

The ordering code starts with GDPES, followed by parameters for Rating (µ), Length, End Cap Style, O-Rings/Gaskets, and Adders.

• Rating (µ): 0.2, 0.45, 0.65
• Length:
  • 10” (25.4 cm)
  • 20” (50.8 cm)
  • 30” (76.2 cm)
  • 40” (101.6 cm)
• End Cap Style:
  • 2 = DOE Flat Gasket
  • 3 = 222 w/ Fin
  • 4 = 222 w/ Flat Cap
  • 6 = 226 w/ Flat Cap
  • 7 = 226 w/ Fin
  • 16 = 213 Internal O-Ring
  • 28 = 222 3-tabs w/ Fin
• O-Rings/Gaskets:
  • B = Buna
  • E = EPDM
  • S = Silicone
  • T = Teflon® Encapsulated Viton®
  • V = Viton®
  • Z = Teflon® Encapsulated Silicone
• Adders:
  • CS = 316SS Compression Spring
  • I = Stainless Steel Insert

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Disclaimer: Filtration data presented is representative of performance observed in controlled laboratory testing. It is not given as a warranty, specification or statement of fitness for use. Specific performance can vary widely depending on contaminant type, fluid properties, flow rates and environmental conditions. It is recommended that users conduct thorough qualification testing to assure the product functions as required. For additional technical support, a product Performance Guide is available upon request. This extraction may miss figures, footnotes, or revisions; contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror