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  • 10 micron Unlaminated PTFE Membrane Filters Discountinued

    Posted on March 26, 2014 by Sterlitech Corporation

    Sterlitech is discontinuing the 10 micron pore size for unlaminated PTFE membrane filters. These filters do not have a direct replacement, but their specifications are listed below for easy comparison to other products:

    10 micron PTFE Filter Product Performance

    Description 10 µm
    Max Operating Temp. 60–300 μm
    Pore Size Range 260 °C (500 °F)
    Max Operating Pressure Variable, need support
    Autoclavable Yes
    Functional Pore Size Range* 10-20
    Thickness (µm) 90-150
    Typical Flow Rate mL/min/cm 2
    @ 13.5 psi (0.95 kg/cm^2 )
    120 - 320
    Minimum Bubble Point, psi *** 0.38 - 0.70
    Average Pore Volume* 65%

    *Indicates representative physical property data, but not specification limits
    ***10 Micron bubble point is for ethanol

    The following products will no longer be offered:

    • PTU1009010
    • PTU1004750
    • PTU1002550

    Sterlitech still carries a broad range of pore sizes for both unlaminated and laminated PTFE filters.  To browse our complete line of PTFE membrane filters, click here.

     

     


    This post was posted in Uncategorized

  • EW and JW Membranes From GE Osmonics Discontinued

    Posted on March 19, 2014 by Sterlitech Corporation

    The EW and JW line of ultrafiltration membranes from GE Osmonics is being discontinued. At this time, these membranes do not have any direct replacements, but we've listed their specifications below to aid comparison for similar products:

    Designation Polymer Molecular Weight Cut-off (MWCO) Rej-Size pH Range @ 25 °C Typical
    Flux/psi
    GFD*@PSI
    EW Polysulfone 60000 MWCO 60K-Dextran 1-12 300/25
    JW PVDF 30000 MWCO 25K - 50K 1-11 275/30

    *GFD = Gallons per square foot of membrane per day

    The following products are longer being offered:

    • YMEWSP3001
    • YMEWSP1905
    • YMEWSP425
    • YMEWSP475
    • YMJWSP3001
    • YMJWSP1905
    • YMJWSP425
    • YMJWSP475

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

     


    This post was posted in Uncategorized

  • ER Flat Sheet Membranes From GE Osmonics Discontinued

    Posted on February 27, 2014 by Sterlitech Corporation

    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.


    This post was posted in Uncategorized

  • Historic California Drought Highlights the Need for Water Technology and Conservation

    Posted on February 25, 2014 by Sterlitech Corporation

    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 the gap between water supply and demand.

    Much of California is arid and no stranger to water shortages.  For that matter, California is no stranger to water technology either.  Some of its largest cities reside in the driest part of the state and they survive by the widespread adoption of technologies, such as low-flow toilets and shower heads, which help people use water more efficiently.  In fact, the use of reverse osmosis for desalination was pioneered in the 1950s at the University of California, Los Angeles.  Membrane-based processes like reverse osmosis can be used to make salty ocean water into potable fresh water, or to recycle wastewater to be used again.  Advances in technology and awareness of the need for conservation have helped bring per capita water use down even as California’s population continues to grow.

    To learn more about Governor Brown’s declaration of drought emergency, you can visit the governor’s website here.  You can also visit Save Our Water for more information about the drought and water conservation tips.

     


    This post was posted in Uncategorized

  • Special Offer for Scilogex Hotplates

    Posted on January 31, 2014 by Sterlitech Corporation

    From now until December 31, 2014, Sterlitech is mixing it up by giving away a PT-1000 temperature sensor (PN: 1890016) with the purchase of select Scilogex hotplate-stirrers. The complete list of hotplate-stirrers eligible for this offer can be found on our website here.

    To take advantage of this offer, simply add the temperature sensor to your cart along with one of the eligible temperature sensors.

    Sterlitech's full line up of hotplates and magnetic stirrers can be found here.


    This post was posted in Uncategorized

  • New simpleSDI Kits Offer Portable and Reliable Performance

    Posted on January 31, 2014 by Sterlitech Corporation

    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.


    This post was posted in Uncategorized

  • Product Application: Isotopic Analysis with Grade F Borosilicate Filters

    Posted on July 29, 2013 by Sterlitech Corporation

    Water, whether seawater or freshwater, is rarely just H2O.  Dissolved nitrites and nitrates in particular play a key role in the survival of aquatic flora like seaweeds.  In 2005, Matthew R. McIlvin and Mark A. Altabet devised a now common method to analyze the isotopic composition of nitrogen and oxygen dissolved in water in the form of nitrates and nitrites.  The method, which can be found here, requires the removal of all organic matter in the samples. The Grade F borosilicate glass fiber filter, with fine porosity, medium flow rate, and a 0.7 micron size particle retention, is the tool of choice for removing organic matter from water samples.


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  • Stop by and See Sterlitech at Pittcon!

    Posted on March 15, 2013 by Sterlitech Corporation

    Sterlitech's Trade Show Tour continues at Pittcon!

    Pittcon 2013 in Philadelphia PA, March 17-21, Booth #153

     

     

     

     

     

     

    Attendees are encouraged to stop by and say hello, or visits can be scheduled by contacting us in advance. Don’t miss out on the opportunity to discuss your filtration needs and get your questions answered from the experts!

     


    This post was posted in Uncategorized

  • Better, Faster, Stronger: Sterlitech's Website Search is Now Powered by Google

    Posted on March 14, 2013 by Sterlitech Corporation

    In order to improve the user experience on our website, we've revamped our search function to use Google's search engine. Our search function will now deliver the most relevant results to you with lightning fast speed. Visit our site and give it spin. You may just find the exact solution for your application.


    This post was posted in Uncategorized

  • Happy Holidays From Sterlitech

    Posted on December 21, 2012 by Sterlitech Corporation

    Sterlitech Corporation would like wish all of you Happy Holidays and thank you for helping to make 2012 a fantastic year!

    In celebration of the holiday season, our office will be closed on:

    Monday - Wednesday, December 24, 2012 - December 26, 2012
    Monday - Tuesday, December 31, 2012 - January 1, 2012

    We look forward to working with you in 2013.


    This post was posted in Uncategorized

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