PSH

Summary

Product identification

PSH-Series High Purity Hydrophobic Polysulfone Membrane Filter Cartridges are a cost-effective alternative to PTFE or PVDF membrane cartridges for air, bulk gas, and tank vent applications requiring high moisture resistance. They feature a highly asymmetric membrane pore structure for high flow rate at low pressure drop. Cartridges are constructed using high purity polypropylene hardware and support layers, and are manufactured in a clean-room environment.

Construction Materials:

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

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.

Operating limits

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

Feed / Application

These cartridges are suitable for air, bulk gas, and tank vent applications.

Typical Applications:

• Tank Vent
• Fermentation
• Air, Nitrogen, Other Inert Gases

Mechanical / hydraulic

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: Cartridges are compatible with most chemical sanitizing agents.

Note: A stainless steel insert option is required for all cartridges being hot water sanitized or steam sterilized.

Ordering Information

The product designation follows the format PSH - Rating (µ) - Length - End Cap Style - O-Rings/Gaskets - Adders.

Available Options:

• Rating (µ): 0.02, 0.03
• 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

Note on Flow Rate vs Pressure Drop: Information regarding flow rate versus pressure drop is mentioned but no data or graph is provided in the extracted text. See the official PDF for exact tabulated values or graphs.

---

Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. For contractual purposes, ensure that all data matches the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror