Page 11 - Product News

Here's a new animation showing the basics of operating Sterlitech's Sepa CF Membrane Test System. Each test system allows users to simulate the dynamics of larger membrane filtration systems by manipulating the control valves to achieve the desired pressure and flow rates. The system is equipped with one or two Sepa CF Cells and a suite of in-line sensors that automatically record and display the experimental data in real time. All Sepa CF test systems are individually manufactured according to the customer's requirements. Contact us to learn more.

 With its latest polyacrylonitrile (PAN) membrane, Sterlitech Corporation offers a hydrophilic filter that does not sacrifice selectivity to achieve faster flow rates in comparison to nylon or polyethersulfone (PES).  Its unique nanofiber mesh construction combines extremely fine pores with significant open space to allow easy liquid flow while trapping particulates as small as 0.2 micron in width. “This technology is already in use for water filtration in applications where low energy is required,” said Sterlitech President Mark Spatz.  “We are excited to introduce this technology at Sterlitech because we know it has a place in laboratories or small-batch processes where its uniquely high flux is an asset.” This novel membrane’s performance is attributed to its unique construction.

It is created by extruding extremely fine PAN nanofibers onto a polyethylene support substrate, to form a tight mesh that filters out particles, colloids, and bacteria larger than 0.2 micron.  The mesh

Complementing our existing CF042 and Sepa CF membrane/process development cells is the new CF016.  Designed for applications with smaller membrane samples or low solution volumes, the CF016 comes in two varieties: a crossflow version that can perform reverse osmosis, nanofiltration, ultrafiltration, and microfiltration separations and a forward osmosis version that can be further modified to perform pressure-retarded osmosis.

In the crossflow version of the the CF016, feed solution enters the membrane cavity in the cell body, flowing tangentially across the membrane surface. Applied pressure forces a portion of the stream to permeate the membrane and flow through the permeate carrier located on the underside of the top half of the cell, finally exiting through the outlet on the top of the cell into a user designated collection vessel. The concentrate stream, which contains the material rejected by the membrane, continues sweeping over the membrane, exiting via the concentrate outlet

The BW30FR line of reverse osmosis membranes from Dow is being discontinued. At this time, these membranes do not have any direct replacements, although we still carry other Dow membranes which may be suitable for your application.  To aid comparison and help you select a possible replacement, the table below includes the technical specifications of the Dow membranes we offer:

DOW FILMTEC™ Reverse Osmosis Membranes

If you need assistance finding a suitable replacement product,

Toray is discontinuing the production of the 70HA and 72U reverse osmosis (RO) membranes. These membranes are being replaced in Sterlitech's line-up by the new 73HA and 73U RO membranes, respectively. The table below lists the specifications of all of our current offerings from Toray for easy comparison.  To browse our complete selection of RO membranes or to place an order with us, click here. Toray Reverse Osmosis Membranes

We have two new animations that show the inner workings and assembly of our Sepa CF and Sepa CF-FO membrane testing cells. The Sepa CF Cell is a lab-scale cross flow filtration unit that provides fast and accurate performance data with minimal amounts of membrane, product, expense or time. This cell is capable of performing reverse osmosis, nanofiltration, ultrafiltration, and microfiltration. The Sepa CF-FO Cell is a variant designed for forward osmosis and pressure-retarded osmosis. Both of these cells are available on our Membrane/Process Development page along with all of the components necessary for operation.

Toray is discontinuing the production the 70AC reverse osmosis (RO) membrane. This membrane is being replaced in Sterlitech's line-up by Toray's new 73AC RO membrane.    The table below lists the specifications of the new membrane for easy comparison.  To browse our complete selection of RO membranes or to place an order with us, click here.

With a new version of these pumps just on the horizon, Sterlitech is offering the remaining KNF Simdos 10 liquid handling pumps at 25% off of their usual list price. We have very limited quantities of these pumps remaining, so visit this page here to take advantage of this special offer.

The CQ line of ultrafiltration membranes from GE is being discontinued. At this time, these membranes do not have any direct replacements, although we still carry other GE membranes which may be suitable for your application.  We've listed the specifications of the CQ membrane line below to aid comparison with other flat sheet membranes:

*GFD = Gallons per square foot of membrane per day The following products are no longer being offered:

• YMCQSP3001
• YMCQSP1905
• YMCQSP425
• YMCQSP475

If you need assistance finding a suitable replacement product, please contact us.  You can also click here to browse the other ultrafiltration membranes that Sterlitech carries.  

Our friends at Foxx Life Sciences have a new video demonstrating the features and innovations incorporated into the design of the Autofil Bottle-top Filtration System. Check it out below:

You can also click here to browse Sterlitech's entire selection of Autofil systems and accessories.