Page 52 - Blog

Spiral wound membrane elements generally offer the best combination of filtration area, flux, and compactness of any cross-flow filtration configuration.  But how are they made? To help show the answer to everyone, the Science Channel visited Synder Filtration’s Headquarters in California to film a special segment on membrane filtration.  The segment will air during the popular show How It’s Made, on April 24, 2014, at 9 PM Eastern Time (6 PM Pacific Time). About Synder Filtration: First established in 1989, Synder Filtration has grown into an international supplier of high quality membrane technology.  Emphasizing customer service, technical expertise, and reliable products, Synder Filtration uses their membrane technology to solve industrial and environmental challenges. To order Synder Flat Sheet Membranes for cross-flow testing, please contact us.

Toray is discontinuing the production of its UTC-80E reverse osmosis membranes. These membranes are being replaced in Sterlitech's line-up by the new UTC-82E membranes, which share the specifications of the UTC-80E.  We've listed their specifications 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:

• YM80ESP18
• YM80ESP195
• YM80ESP42
• YM80ESP475

You can click here to browse the complete list of reverse osmosis membranes that Sterlitech carries.

The GM line of ultrafiltration membranes from GE Osmonics is being discontinued. At this time, these membranes do not have any direct replacements, although the GK series, also from GE Osmonics, is used in many of the same applications.  We've listed their specifications below to aid comparison with other flat sheet membranes:

  *GFD = Gallons per square foot of membrane per day The following products are longer being offered:

• YMGMSP3001
• YMGMSP1905
• YMGMSP425
• YMGMSP475

Although these products are being discontinued, we do have limited quantities of these products remaining.  If you need to place an order for any of these products, please contact us.  You can also click here to browse the other ultrafiltration membranes that Sterlitech carries.  

Sterlitech Corporation has expanded its line of laminated ePTFE filters with the addition of new Aspire™ membrane filters for microfiltration.  With pore sizes ranging from 0.1 micron to 5.0 micron, the Aspire™ membranes broadens Sterlitech’s pore size selection to cover a wider range of applications.  The new Aspire™ membranes also include hydrophilic and oleophobic filters. “The new Aspire laminated ePTFE membranes complement our existing laminated and unlaminated PTFE products,” states Mark Spatz, president of Sterlitech. “The hydrophilic and oleophobic membranes also introduce capabilities that our previous ePTFE products didn’t have.” Expanding PTFE creates a dense, web-like structure with billions of microscopic pores, which trap particulates and allow liquids or gas to flow through.   Sterlitech offers Aspire ePTFE membrane filters in packs of 200 mm x 250 mm sheets with pore sizes ranging from 0.1 microns to 5.0 microns.  The membranes are supported by a layer of polypropylene

The ER line of ultrafiltration membranes from GE Osmonics is being discontinued.  The following products will no longer be offered:

• YMERSP1905
• YMERSP4205
• YMERSP3001

Sterlitech has limited stock remaining of YMERSP475.  While GE has no direct replacement for the ER membrane, the EW ultrafiltration is made of the same materials and is used in many of the same applications.

For the past two years, California has been gripped in a historic drought, but things took a turn for the worse last month when measurements indicated 20% below normal precipitation levels and the worst drought conditions since record keeping began in the 1840’s. Governor Jerry Brown has declared a Statewide Drought Emergency and asked all 38 million California residents to reduce water use by 20%. Even President Obama has traveled to the state, offering Federal aid to those adversely affected by the drought. However, conservation may not be enough to ensure that there will be enough water in California to meet the demands of its population and industries in the long term.  California produces a third of the country’s vegetables and agriculture accounts for 80% of the state’s water use.  As California’s population continues to grow, and climate change threatens the state’s largest source of water, the annual snowpack on the Sierra Nevada, it falls to water technologies to help bridge

Sterlitech is looking forward to seeing you and showing off our latest products at the following trade shows next month: Pittcon, Booth #1617, Chicago, IL

If you're heading to these either of these shows, please stop by our booth and say hello.  We're happy to answer all of your questions about the latest in filtration and membrane technology.

The existence of suspended solids and colloidal materials in feed water pose one of the biggest problems in reverse osmosis systems. To help combat this issue, Sterlitech is adding new simpleSDI kits to supplement its existing line of automatic and manual silt density index testing kits from GE. The new kits are available in automatic and manual testing versions and utilize 47 mm diameter, 0.45 micron MCE membranes to measure the degree of potential fouling in an RO system. To view Sterlitech's entire line of SDI kits as well as supplementary information about SDI testing, click here.