UAF Introduces Advanced Harsh Environment Air Filters

Universal Air Filter, the leader in electronics air filtration and EMI shielding, introduces the upcoming release of its Series 2 Outside Plant Filter (OSP). Offering UL900 classification at increased air flow, OSP Series 2 delivers protection from dust, wind-driven rain and salt fog.

“Our customers develop applications that need to perform in diverse conditions,” said Dan Krupp, President of UAF. “With its performance, low pressure drop, UL compliance and flexible design, OSP Series 2 creates a lot of new design options for equipment operating in harsh environments.”

OSP Series 2 improves upon UAF’s current OSP filter that the world’s top telecom providers, power generation equipment producers, interactive signage manufacturers and dozens of ‘Internet of Things’ developers rely on today. “UAF’s OSP filters deliver superior water and airborne contaminant protection for products such as interactive kiosk displays to communicate with residents and visitors in cities all over the world,” said Chris Picha, UAF Lead Mechanical Engineer. “We’re excited about the improvements in the 2nd Series OSP Filters.’

Custom OSP Filters keep dust, water, wind-driven rain and salt fog out of electronics enclosures utilizing direct air cooling systems. Cabinets for telecom, wireless, digital signage, and power applications can now use outside air vented cooling systems in place of costly, inefficient, closed-loop air-to-air heat exchangers.

OSP Filters are compliant for use with industry standards including UL 900, GR 487, NEMA, and IP enclosure ratings. In addition to the OSP filters already available, UAF has other water-repellant solutions. UAF Quadrafoam with hydrophobic mesh provides water repellency in a low-profile assembly. For other indoor and outdoor environments, UAF offers a portfolio of filter media in a durable framed assembly – metal or flame-retardant, flexible polypropylene.

UAF stands ready to provide engineering support with filter media selection, design specification assistance, 3D CAD models, and to size, to spec prototypes – all free of charge!

About UAF and Filtration Group: Headquartered in Sauget, IL, UAF is in the Indoor Air Quality division of Filtration Group – the world’s leading filtration company. Filtration Group is a globally recognized brand, serving many of the world’s best-known companies throughout North America, Europe and Asia.

Visit UAF at Electronica 2018 in Munich, Germany, November 13 -16, or click here to get more information or to contact an air filtration expert.

UAF Solves Thermal Challenges in Dermatological Equipment

Millions of people suffer from pigment and vascular conditions that include rosacea, port wine stains, inflammatory acne and spider veins. Most of the conditions do not cause health risks but can dramatically impact self-confidence and even cause psychological disabilities in those with the conditions.

Pulsed-dye lasers is one of the safest and most effective ways to erase unwanted marks from your skin. And one of the premier laser removal products, Vbeam Prima from Candela, is a great professional tool to help you achieve clear skin as well as treat acne scars, wrinkles, and dark spots.

Vbeam Prima is a gold standard treatment accepted worldwide. Time and again it proves itself as a well tolerated, easy-to-use tool for the treatment of vascular, pigmented and certain non-pigmented lesions with a low incidence of side effects affords its patients fewer and shorter treatments with little discomfort and downtime after treatments.

The Vbeam Prima system has four filters in total: two in back to manage dust and other environmental issues, a curved filter within, and even smaller filter to help the chiller. The machine’s original design had an injection molded two piece spring filter built right into it, which proved more costly and inadequate, as it could not endure the high temperatures generated by the system.

The thermal characteristics of the original design had very tight margins and a higher media density, which led to pressure drop concerns. The system also had a transparent screen that exposed the laser’s mechanics and allowed space for objects to be put into the machine. All of these factors contributed to Candela’s decision to seek alternative filter options.

Vadim Grinis, Senior Mechanical Engineer at Syneron-Candela, knew he needed more durable filter options with higher temperature thresholds and greater margins than what the current system contained. In addition, the unique contour within the laser device would require a significant investment in tooling to accommodate an air filter. Retrofitting parts is never simple, but after hearing the custom design and material capabilities of Universal Air Filter, Vadim was ready, “Let’s make a prototype!”



UAF and Candela collaborated on a 3D CAD design by using UAF’s free online 3D CAD tools, UAF was able to evaluate the mechanical design, laser-cut a Flex-Frame filter to fit the contoured shape, eliminate tooling costs, provide UL 94 flame safety, and create custom prototypes to meet all of Candela’s requirements., UAF was able to evaluate the mechanical design, laser-cut a Flex-Frame filter to fit the contoured shape, eliminate tooling costs, provide UL 94 flame safety, and create custom prototypes to meet all of Candela’s requirements. The curved, Flex-Frame technology was a natural fit for PicoWay. The air flow concerns were addressed by selecting a low pressure drop media with high dust loading and a UL 94 rating. In addition, industrial design challenges were solved with a media color to give the overall system a sleeker appearance. The light gray foam against the light gray machine color gives it a softer feeling – the contrast between them looks good – and there are no openings which protects against fingers or other objects entering the equipment.



Vadim is very happy with UAF service, capabilities and solutions. He also notes PicoWay sales have doubled in 2018 due to the change. Vadim recognizes the design collaboration was a “great job and hopefully we can use UAF in another product.”

UAF is exhibiting at Taitronics 2018

UAF is exibiting at TAITRONICS 2018 on October 9th – 12th in Taipei, Taiwan.  Taitronics is focused on New Technology, New Applications, connecting the complete electronics industry from upstream to downstream. The show has successfully combined AI and IoT while establishing AIoT Pavilion that demonstrated smart manufacturing, smart agriculture, smart education, smart transportation, smart retail and other cross-industry applications.

https://www.taitronics.tw/

Importance of Specifying UAF Quadrafoam



Not all UL 94-rated open cell polyurethane foams are created equal. Far from it. So when it comes to choosing certified Quadrafoam™ media, you have some important decisions to make. First and foremost, you’ll need to consider the source of your media. Are you OK with buying off-brand media that’s simply stamped out in a far off and unfamiliar factory and, perhaps illegally, called “quadrafoam”? At UAF, we’ve come across instances where other manufacturers are marketing their products as “quadrafoam” or boasting of having “equivalent products”. While an argument could be made that there’s very little difference between, say, Advil and generic ibuprofen, that’s not the case when it comes to critical air filtration. UAF branded Quadrafoam™ is an air filter grade media that has been produced to maximize air flow and dust holding, while still meeting the stringent, UL 94 HF-1 flame safety rating. Bear in mind that’s not necessarily the case with impostor products.

If you prefer the confidence and attention-to-detail that comes from working with a dedicated team of designers/manufacturers that have been in the business for over 50 years, chose UAF. Universal Air Filter’s air filter media is produced to the most stringent standards and specifications. We have extensive quality procedures in place to ensure the air filter media delivers maximum performance for air flow, dust holding, flame safety, and industry standards compliance. We understand there are cheap foam options out there, but you want to be cautious when it comes to air flow and standards compliance for your high end equipment.

If all of that sounds like toothless marketing speak and fear tactics, consider the following for why you should consider trademarked UAF Quadrafoam™:

1. UAF performs in-depth R & D processes including airflow and pressure drop testing of Quadrafoam™ media to determine the specified grade and porosity 2. UAF contracts with an independent, 3rd party test lab to perform ASHRAE Std. 52.2 arrestance tests, certifying all filters meet specified grade and porosity criteria

3. As part of our Quality Assurance Program, ASTM D-3574 airflow testing is performed on every production batch to verify consistency of porosity and certify airflow values

4. UAF Quadrafoam™ air filter media is produced and processed to meet the most stringent, electronics industry, UL 94 HF-1 flame safety requirements Each shipment is verified and certified for accuracy and quality

5. In process, visual inspections are performed and compared to original R & D samples

6. If even a slight variance is discovered, UAF performs additional pressure drop testing to determine disposition of product and ensure quality UAF has over 30 years of Quadrafoam™ design, manufacturing, production, and fabrication experience using state of the art equipment to deliver a consistent Quadrafoam™ product

At Universal Air Filter, our entire team stands behind our products and we’re committed to transparency, precision engineering and dedicated life-cycle support. So before you blindly purchase any foam media labeled as “quadrafoam”, take a moment to consider the source. Be sure to specify UAF-certified Quadrafoam™!

Renewable Energy – Saving Mother Earth



With energy costs on a constant climb and global warming an unequivocal fact, everyone is looking for a less expensive and more environmentally friendly way to get their energy. Paving the way are options like geothermal heat, solar power, biofuels, wind power, and nuclear energy. Beginning with the oil crisis in 1973, the US government began investing heavily in renewable energy research and development in an effort to develop alternative power sources. Solar power has become one of the more accessible and affordable ways for the average person to join the battle of sustaining earth’s atmosphere while wind power has picked up speed with businesses, especially with electricity and water companies.

Solar Power
But how does solar power actually work? Solar power works similarly to the photosynthesis process of a plant. The big difference being that plants absorb the sunlight and also pull CO2 out of the air to create its energy. If solar cells could also pull CO2 out of the air, they would be a tremendous benefit to the our current global warming issues. In simple terms, solar power works by a solar cell absorbing the light from the sun, which causes one of the bonds’ electrons to excite to a higher energy level and freely move around, creating an electrical current ripe for harnessing.

Just like the sun’s light hitting your skin makes you feel warm, the sun’s light hitting certain compounds creates an electrical current. Photovoltaic, PV, cells convert sunlight into direct current (DC) electricity. An inverter then converts the DC into AC electricity which in turn powers through an electrical panel to appliances, lamps, etc. To help understand further, the word photovoltaic is a combination of the terms photons and voltage. Photons are the basic unit that makes up all light and voltage is electromotive force, or electricity.

Solar Power Origins
Edmond Becquerel was a nineteenth century French physicist who researched magnetism, electricity, and optics: phosphorescence and luminescence interested him most. In the 1840s he discovered that exposing certain substances to light caused chemical reactions that could produce an electric current in metals and liquids. Building an actinometer he was able to measure the light source’s intensity through the amount of electrical current elicited in the substances. This light energy and chemical energy connection was embraced by many scientists following him but none advanced the field significantly until 1940 when Russell Ohl, working for Bell Labs, patented the first solar cell.

Russell noticed that when his cracked silicon sample was exposed to light, the current between the two sides of the crack saw a significant jump. Sunlight was being converted to electrical energy and Ohl had invented the silicon solar cell. The silicon cell was much more efficient than the previous selenium solar cells and AT&T linked a group of solar cells creating a solar battery. This battery was able to power a small electrical circuit that was mounted onto a telephone pole.

Equipment Issues
Solar power equipment and infrastructure experience their own challenges: overheating, dust contamination, water ingress, and EMI attenuation. While addressing these issues with filters, you must consider compliance with industry standards and environmental regulations. The equipment needs to be protected with proper filters. Engineered air filtration solutions will not only save you money, but will enhance your system’s energy efficiency.

You can improve a solar power system’s reliability, durability, and safety with the correct air filters, EMI vents, mist eliminators, and screens. Universal Air Filter not only carries products appropriate for solar power equipment and EMI shielding equipment protection, but their filters are suited for indoor and outdoor applications, even in harsh environmental conditions. UAF creates custom filters for every situation and addresses every requirement, even creating prototypes to field test.

The solar power system depends on AC or DC converter or inverter. Basically, the DC supplied by the solar panel is switched on and off to provide the power line frequency. On both the AC and DC sides of the conversion, the efficiency and performance can be detrimentally affected by various noise sources. Microcontrollers from sophisticated electronics improve the AC signal purity. The operation of the sensitive electronics of the power converter at the AC output can be harmfully influenced by broadband interference spectrum and harmonics that can cause noncompliance with utility codes and power-quality standards, fail compliance testing for EMC (electromagnetic compatibility) completely, or experience total equipment failure. On the DC side, leakage currents and electromagnetic interference (EMI) radiated by the panels can cause premature aging of the panels.

Inverter output signals need to be pure sine wave and devoid of harmonics or high frequency components. This can only be achieved with proper filtering. For peak performance, a DC EMC filter is essential, an AC EMC filter on the output side is recommended, and a sine wave filter is a helpful addition.

Wind Power
Wind turbines extract energy from the wind by capturing the wind’s kinetic energy and converting it into electrical power. The wind spins/rotates the turbine blades, which capture the kinetic energy of the wind by transferring the energy into the spinning shaft, converting it into a rotary motion through the shaft driving a generator and making electricity. There are two basic designs of wind turbines are horizontal and vertical axis wind turbines. Horizontal (or HAWT) are most common, displaying the propellers like a household fan, while the vertical (VAWT) looks more lik egg beater.

Wind speed and size of the blades are the key factors to the available power that can be harvested from the wind. The faster the blades spin or the greater the area that is swept by the blades the more extractable en there is.

Wind Power Origins
Wind has been used as a power source for thousands of years in the form of sailboats and windmills. Somewhere in 500-900 the Persians and Chinese used wind powered grain mills and water pumps. The first windmills were four blades and a tail or weathervane to turn into the wind. Daniel Halladay is credited with the first manufactured windmill in the US in 1854. The first electricity generating wind turbine was invented in 1888 in Cleveland, Ohio by Charles F. Brush. Containing 144 wood rotor blades with a 50 foot diameter, the windmill generated 12 kW of power.

Today, wind power can cost as little as $35 per megawatt hour MWh), which is significantly less than the $50 per MWh of natural gas and still lower than the $37 per MWh of coal. Of course, the financial savings is just one benefit, as both coal and natural gas are nonrenewable energy sources, the exploration and extraction of them costs us much more due to the environmental impact.

Wind Power Issues
More than 75% of running wind turbines are constructed with gear systems containing lubricating gear oil. Older turbines do not have filtration systems and the contamination buildup in the system stays in the system and on the gearbox, generating even more contamination.

Newer wind turbines generally have an oil filter in the gear oil cooling system. Keeping the oil temperature low requires a filter with proper efficiency. Because oil types used in the gearboxes are high viscosity gear oils like mineral, semisynthetic and synthetic, a filter pump with a bypass valve tested down to 30o C is generally necessary.

Universal Air Filter for Renewable Power Systems

Specifically addressing the issues associated with both solar and wind power equipment, Universal Air Filter is creating new designs that will withstand the harsh environments of these outdoor systems. To reduce maintenance and prolong the life of a system and the filters within it, UAF has recognized stock filters can’t always perform as needed and they are working on filters with higher durability and made of different materials. Currently, many filters are made of a cardboard frame and polyester media which is neither washable nor enduring. Exposure to high winds, blowing dust, and wind-driven rain, cause standard, commodity air filters to prematurely fail in the field. Utilizing cost-effective designs incorporating sturdy aluminum frames and rugged filter media, UAF is aiming to service equipment and improve performance for their wind and solar customers more effectively.

The Importance of Thermal Design

Thermal considerations are fundamental when designing any electronic equipment. Convection, conduction, and radiation heat transfer all need attention to build efficient equipment and to keep it running optimally. Both the printed circuit board (PCB) and the integrated circuit (IC) package are important components to any piece of electronic equipment and need to be effectively integrated into the design.

New computational fluid dynamics (CFD) software helps designers include these and all other important aspects by providing tools for thermal simulation and computational fluid dynamics. With this software, designers can validate product behavior and optimize product design prior to spending time and money on manufacturing.

While mechanical engineers address the physical design with one software and the electronic designers address the ICs and PCBs with another, CFD software allows the two to collaborate. Importing the data from both the mechanical and electronic designers’ programs, accurate, thermal information is gathered to analyze and simulate all aspects of the product. With that information, design engineers now have the ability to test, experiment, and verify the different variables of a product at a quicker speed than before.

ECS Thermal Design Study

Using FloTHERM XT, one company, Electronic Cooling Solutions (ECS), studied the challenges of thermal design of a tablet that uses forced convection to cool the components with blowers that direct the airflow. By building a thermal model of a tablet, they were able to evaluate alternative thermal management techniques without the time or expense of physical prototypes. With a validated model, they compared the heat spread inside the tablet using infrared images. One area they simulated was to avoid recirculating the exhaust with angled louvers that directed the airflow from the tablet’s plane.

Another use of their thermal model was to simulate different conductivity of the tablet’s outer surface temperature and determine the effects on its components. With two batteries isolated at the bottom of the tablet near the GPU and CPU, a low temperature needs to be maintained. The batteries don’t generate significant heat, but keeping the tablet isothermal is what makes thermal design difficult and these simulations helpful.

Working on the acoustic levels required ECS to team up with Orfield Labs which maintains zero background noise. They measured the sound power for different blower voltages. The results of their simulations showed that increasing heat spreading improves battery life and the acoustics by reducing the required blower speed.

Thermal design for Cooling Systems

The cooling system of any device is a very important element – it not only protects your equipment, but it helps to expand the life of it. Both the performance power and the space available around a device’s internal components play big roles in the cooling of it. Small devices require small parts; and with smaller devices performing at higher levels, thermal management is even more crucial.

In a high performing tablet, the GPU and CPU generate the most heat and require a sufficient cooling system. There are active cooling methods, like forced convection, or fans, and there are passive methods like thermal radiation, conduction, and convection. Most systems use a combination of these methods. Thermal design is necessary in determining the best method for the build to prevent catastrophic failure.

Directing their attention to the implications of the system’s temperature, mechanical and thermal engineers use CFD software to find methods for reducing heat build-up by incorporating fans and filters. FloTHERM’s software actually includes the UAF air filter media in their thermal libraries, allowing designers to easily import the data for their CFD analysis. Now engineers can gain more comprehensive insights into the air filters’ effects on the entire system. UAF supports the system design even further with 3D CAD air filter models and free prototypes for testing.

Selecting the best products for each application is vital to thermal management. Defining information about the equipment’s environment, location, enclosure, and interior equipment help determine appropriate methods for eliminating its hot spots. Simple ventilation devices like air filters help maintain a cool, constant temperature while circulating fans and air conditioners help improve heat dissipation.

UAF helps equipment operate consistently and avoid overheating with their many server, router, switch, and storage device options. Meeting operating requirements, air filtration needs, and keeping its products within critical environments, UAF helps to keep your equipment within its optimal temperature range.

UAF Site Survey Preventative Maintenance Program Recognized at Filtration Group’s Leadership Conference

Universal Air Filter’s Director of National Accounts, Nick Kovacic, was recognized during Filtration Group’s ‘2018 Global Leadership Conference’ in Atlanta, GA this week.

Nick was recognized for developing the customer-centric, preventative maintenance program that has helped ensure system performance and uptime for UAF customers that include AT&T, Verizon, T-Mobile, Windstream and many others.

This year’s conference theme is, “The Customer Imperative, advancing our customer-focused culture to achieve our Vision 2020.” UAF’s ‘Site Survey’ program exemplifies this theme.

UAF’s CEO, Dan Krupp, says “Nick and his growing team of filtration experts have worked tirelessly to develop a seamless program that helps our telecom partners maximize system performance while minimizing maintenance time and resources. The program reduces IT resources spent chasing false system alarms, identifying the appropriate replacement filters and providing insider tips for maintaining their equipment. Our telecom partners rely on Nick and his team for maintenance best practices and resources.’

NEBS GR-63 Issue 5 | Updates

NEBS GR-63 Issue 5

Ensure Telecom Equipment Designs Adhere to the Updated NEBS GR-63 Standards

Telecom equipment destined for most networks in North America must meet contractual and design requirements. Equipment designed and tested to meet Network Equipment Building System (NEBS) is recognized as the gold standard for safety and reliability.

Telcordia-NIS assembled a committee of telecom carriers, test labs, standards organizations, equipment manufacturers, and industry experts to update NEBS GR-63 and release the Issue 5 Generic Requirements. The focus was on improving the requirements related to environmental criteria and physical aspects of equipment-building interface. The updated requirements were published by Telcordia-NIS in December 2017. As part of the intensive review, service providers stressed the importance of having air filters protect equipment installed within central offices. A summary of the updated GR-63 Issue 5 air filter requirements can be found at the link below. Universal Air Filter is NEBS Certified to the GR-63 air filter requirements. You can also contact Universal Air Filter’s staff of filtration experts and engineers to help answer any of your questions. Contact UAF.

A full copy of the NEBS GR-63 Issue 5 Update can be ordered from Telcordia.

Download NEBS-63 Air Filter Requirements

Don’t Get Overheated Watching the Winter Olympics

Picture of the Olympic Rings on the Montreal International Olympic Committee (IOC) building (Canada), built for the 1976 Summer Olympic Games

The 2018 Winter Olympics are quickly approaching, and whether you’re a curling, skiing, or luge fan, the last thing you want to worry about is your equipment or signal failing. Reliable internet and digital TV will provide you with uninterrupted access to every minute of Olympic action. Whether you watch through the internet or fiber optic cable, you don’t want to lose your signal or experience equipment failure in the final minutes of another women’s hockey grudge match between USA and Canada.

Electronic devices all generate heat that needs to be dispersed to prevent system freezes or even crashes. Thermal management of your system is vital to performance. The circuits, graphics card, or even the hard drive are all vulnerable to the heat they produce which can cause varying ranges of damage from interruptions to loss of service entirely. The confined space and high wattage within video servers, digital communications equipment and broadband chassis exacerbate the heat emitted from each part and overheating them cannot only keep you from watching the new season of Stranger Things, but can reduce the lifespan of the entire device.

Aside from parts warming while engaged, you need to make sure the air filters are clean and there is no particulate build up. Blocked air filters will increase the temperature of the system and cause circuit board failure and most upsetting, lost service. Air filters that meet stringent telecommunications standards for flame safety and reliability will maximize cooling air flow, keeping the system cool.

Universal Air Filter’s Quadrafoam

Features:
– Protect equipment from dust contaminants
– Fire resistant to UL 94 standard
– Cleanable and reusable
– Low pressure drop for maximum air flow
– Porosities between 10 and 80 PPI in green, gray, or black
– Frame of sturdy one-piece roll formed channel
– Precision sheet metal framework designs
– Flexible, flame-retardant frame options
– Uni-Grid media support used on one or both sides
– Effective for mist elimination and water ingress


Quadrafoam™ and Quadrafoam II™ are open cell polyurethane foams specially processed to provide improved flame, fungus, and UV radiation resistance. They feature deep loading, high dust holding capacity and low airflow resistance for use in extremely wide climatic conditions. Used in a variety of applications like wire-lines, wireless, and CATV communications networks.

Aluminum components can be treated with a chromate or iridite finish to provide corrosion protection. Two custom frame options allow for a “frame-n-pane” design in either aluminum or flame-retardant, flexible polypropylene to provide media support.

Standards & Classifications:

– UAF Quadrafoam products and facilities undergo repeated, rigorous third party testing and auditing by independent regulatory agencies to deliver 100% compliance with industry standards
– Environmental, recyclability, and non-use of hazardous materials are also monitored and confirmed
– UL, CE, Telcordia NEBS, ASHRAE, RoHS, and REACH compliance are verified in the areas of fire safety, reliability, filtration performance, and EMI shielding
– UL 94 HF-1 self-extinguishing flame safety standards for electronics in industrial, medical, telecom, and military electronics air filter applications
– A video of Quadrafoam’s self-extinguishing ability in action can be viewed here
– Telcordia GR-63-CORE for flame safety and dust arrestance
– ATCA, NEMA, IP, MIL-STD, MiCA, CompactPCI, FMVSS 302


Call Universal Air Filter Co. to speak with an experienced engineer: 1-618-271-7300 or Request a Quote.

As with every air filter, UAF offers its complimentary, round-the-clock prototype service to design engineers worldwide. Free prototypes can be built to your specifications in 5 days. Request your Prototype.

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