Hydrophobic PES Membranes Supported For Air Venting Gas Filtration

Hydrophobic polyethersulfone (PES) membranes are designed for fast air filtration or sterile venting while preventing any liquid passage or condensate blockage. Hydrophobic PES membranes are made of a modified polyethersulfone polymer with supportive PP or PET backing. The asymmetric pore structure and high porosity provides excellent flow rate and contaminants retention efficiency. Supported with PP or PET layer, the hydrophobic PES membrane filters have additional benefits of strong dimensioinal stability which make them able to withstand agressive further processing, and the superior mechanical strength can also withstand almost all kinds of assembling technologies. Polyethersulfone (PES) membranes are compatible with various sterilization methods such as ETO, gamma irradiation and autoclaves, and the gamma irradiation compatibility of PES membrane make them a very efficient and powerful alternative to PTFE and will help you to increase your process and product security at lower costs.

Hydrophobic PES membranes we offer are in selectable formats of flat sheets, discs and rolls, with pore sizes ranging from 0.1 to 15 microns, conforming to ISO sanitary standards for pharmaceutical, healthcare and life-sciences filtration applications. Every batch of sample and bulk are tested before delivery and the quality control process gurantees lot to lot quality consistency in terms of porosity, physical and chemical filtration properties.

Features of Hydrophobic PES membranes

• Excellent liquid repellency (Hydrophobic)
• High air flow rates
• High retention efficiency of particles, aerosols and microorganisms
• High thermal resistance
• High mechanical strength
• Low drug and protein adsorption
• Low extractables
• Wide choice of pore sizes from 0.1 µm up to 5µm
• Compatible with different sealing methods : Ultrasonic, Heat, Mechanical
• Sterilization compatibility: Gamma Irradiation, Autoclaving and Ethylene Oxide.

Specifications

Applications

Hydrophobic PES membranes are an ideal solution for venting and gas filtration applications. Their common applications include,

• Vented caps
• Liquid stopper devices
• Vent filters in medical devices such as - IV Filters, Infusion Drip Chambers and Epidural Filters
• Sterile vents for cell culture flasks and bottles, bioreactors, fermenters.

Founded in 1994, Zhejiang XINNA Medical Device Technology Co.,ltd is a trusted and professional manufacturer of high-quality membrane filtration products. As a high-tech enterprise integrating R&D, production and sales, Xinna provides a wide range of membrane filter products and solutions in the process of filtration, sterilization and purification. ln terms of core technology, it owns 7 patented technologies of joint research and development of filter membranes with one of the best Universities in China. The Nylon, PES, PP, PVDF, PTFE and other membrane filters from us are widely used in medical devices,laboratory, healthcare, air filtration and more fields.

Facilities

Our 161,458 square feet facilities are located in Zhejiang Province of China, with 75,347 square feet as Class 100,000 Cleanroom. This allows us to provide a superior level of cleanliness and contaminate-free status of products to our customers including medical device manufacturers, laboratories and healthcare professionals all around the world.

Featured Products

1. Inline IV Filters & extension lines with IV filters & Transducer protectors

• PTFE membrane for air evacuation
• Single or double-layer PES membrane as filter media
• Pore size: 0.22μm, 0.45μm,1.2μm, 2μm, 3μm, 5μm

Certificates

We hold the ISO 9001:2009 and ISO 13485:2003 Certificates, committed to maintaining a high standard of quality and safety in our operation to ensure our products and services meet our customers’ needs.