Page 13 - Company News

Sterlitech Corporation is adding new product options to its line of silt density index (SDI) testing devices. Sterlitech is offering these all-in-one units in response to the industry’s demand for a convenient and durable on-site tool for measuring the fouling capacity of the feed water used in reverse osmosis systems. Silt density index testing quantifies the amount of particulate contamination in a water source and is used to estimate the rate at which membrane fouling will occur, particularly in applications employing reverse osmosis membranes. The SDI of a feed source is measured by running a stream of feed water through a 0.45 micron filter at a constant pressure and calculating the rate at which the flow slows down (ASTM Test Method 4189-07). “Accurate and reliable SDI testing is key to maintaining good efficiency in membrane purification facilities and to help keep operating costs down, especially when dealing with sources like seawater which have a highly variable SDI,” notes

Sterlitech is shaking up our flat sheet membrane offerings with the addition of new nanofiltration, ultrafiltration, and microfiltration membranes from Synder Filtration. These new membranes encompass a variety of materials and applications. First established in 1989, Synder Filtration has grown into an international supplier of high quality membrane technology.  Emphasizing technical expertise, and reliable products, Synder Filtration's membrane technology is ideal for solving industrial and environmental challenges. The table below lists the new membranes and their specs.  To browse the complete list of Sterlitech's flat sheet membranes or to place an order, click here. Synder Nanofiltration Membranes

Sterlitech Corporation is adding the EZWaste Safety Vented Carboy to its roster of ergonomic, compact fluid storage and transport equipment.  These new, specially vented carboys are designed to help scientists create a safer laboratory environment by reducing the risks of spills and preventing hazardous solvent vapors from infiltrating the lab. “Many organic solvents common to laboratories, like acetonitrile, can give off hazardous vapors, while others, like dimethyl sulfoxide, can easily permeate through the skin when airborne.” says Mark Spatz, founder and President of Sterlitech.  “The EZWaste carboy creates a closed waste collection system, preventing spills and minimizing the risks of exposure to personnel from volatile organic compounds.” The EZWaste Safety Vented Carboys are a direct descendent of the EZgrip Carboys currently offered by Sterlitech, which mean they share the same efficient, ergonomic design.  What sets the EZWaste apart the normal carboy is a special VersaCap

Toray is discontinuing the production of some of their reverse osmosis (RO) membranes. These membranes are being replaced in Sterlitech's line-up by the new 70HA, 70AC, 72U, and 82V membranes will be overtaking some of Toray's newly obsolete membranes.  The table below lists the specifications of the new and obsolete membranes for easy comparison.  To browse our complete selection of RO membranes or to place an order with us, click here.

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