Specifications
Polyethersulfone(PES) membrane is made of a modified polyethersulfone polymer cast. The optimized asymmetric structure, enhanced hydrophilicity and high porosity provides extraordinary high flow rate and contaminants retention capacity. The product uniformity results in consistent filtration performance. Its high mechanical strength supports most kinds of assembling technologies.
The high asymmetric structure, as shown in figure, promises marvelous particle retention capacity and low extractables and drug&protein adsorption. The upstream surface, with larger pore size, functions as a pre-filter layer to retain big contaminants such as drug crystals and solid particles; on the other hand, the downstream surface with smaller port size plays a rold as a precise-filter layer, to retent all the rest contaminants. The gradient filtration principle and high porosity(＞75%)ensures our promised filtration efficiency. PES membrane is also availabel in positively-charged modified version, providing a solution for protein/endotoxin binding liquid filtration applications.
Techinical Support & Local Service
Please use our 7/24 Online Technical Hotline Service for any product purchase or shipping status related questions
For Local Technical Support, please check our Online Support to get service map to see if your zipcode is in our local service coverage plan; Or an out-of-region service can be arranged to address your issue
Warranty & Return Policies
STANDARD ONE YEAR MANUFACTURER WARRANTY:
The manufacturer warrants this product to be free from defects in workmanship and materials, under normal use and conditions, for a period of one (1) year for the original invoice date. Shipping and handling fees are to be paid for by the customer. The manufacturer agrees, at its option during the warranty period, to repair and defect in material or workmanship or to furnish a repaired or refurbished product of equal value in exchange without charge (except for a fee for shipping, handling, packing, return postage, and insurance which will be incurred by the customer). Such repair or replacement is subject to verification of the defect or malfunction and proof of purchase as confirmed by showing the model number on original dated sales receipt.
This warranty does not include: Any condition resulting from other than ordinary residential wear or any use for which the product was not intended, such as use in rental or contract trade or commercial use Any condition resulting from incorrect or inadequate maintenance or care Damage resulting from misuse, abuse, negligence, accidents or shipping damage Dissatisfaction due to buyer’s remorse Normal wear and tear Damages incurred during transportation Damages incurred during assembly or maintenance Any used, previously displayed items
CONDITIONAL RETURN POLICIES
Nodesus provides charged return support to certain technical products or services where an "Accept Return" tag is attached; Operation costs such as Shipping and Handling, Re-instock, Re-furbishment, etc may incur.
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