Metal Reverse
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 58mm Metal Reverse Mount Macro Lens Adapter CANON EOS $7.45 Time Remaining: 17d 21h 40m Buy It Now for only: $7.45 |
 Camera 72mm Metal Reverse Macro Lens Adapter Ring Black for Nikon $9.75 Time Remaining: 2h 48m |
 Metal Reverse Mount Macro Adapter 52mm for Olympus 4 3 $7.99 Time Remaining: 14d 5h 25m Buy It Now for only: $7.99 |
 Metal Reverse Mount Macro Adapter 62mm for CANON EOS $6.50 Time Remaining: 14d 3h 40m Buy It Now for only: $6.50 |
 52mm Lens Metal Reverse Mount Macro Adapter to Nikon D3000 D5000 D7000 $8.98 Time Remaining: 24d 1h 11m Buy It Now for only: $8.98 |
 Black Metal 55mm Macro Reverse Adapter for Canon EOS $7.92 Time Remaining: 19d 16h 37m Buy It Now for only: $7.92 |
 67mm Black Metal Macro Reverse Adapter Ring for Nikon $8.71 Time Remaining: 21d 9h 21m Buy It Now for only: $8.71 |
 77mm Reverse Mount Metal Adapter Ring for Nikon Camera $13.46 Time Remaining: 6d 23h 11m Buy It Now for only: $13.46 |
 Camera 52mm Metal Reverse Mount Adapter for Canon EOS $7.36 Time Remaining: 23d 17h 15m Buy It Now for only: $7.36 |
 Black Metal 58mm Reverse Adapter Ring for Canon EOS $7.69 Time Remaining: 8d 19h 29m Buy It Now for only: $7.69 |
 58mm Reverse Mount Metal Adapter Ring Blk for Canon EOS $7.69 Time Remaining: 15d 6h 52m Buy It Now for only: $7.69 |
 49 49mm Close Up Macro Coupler Reverse Reversing Ring 49mm 49mm Metal Adapter $9.95 Time Remaining: 6d 19h 44m Buy It Now for only: $9.95 |
 Black Metal 58mm Reverse Adapter Ring for Canon EOS $7.69 Time Remaining: 10d 39m Buy It Now for only: $7.69 |
 52mm Lens Metal Reverse Mount Macro Adapter to Canon EOS $8.98 Time Remaining: 3d 20h 51m Buy It Now for only: $8.98 |
 10 Metal Reverse Mount Macro Adapter for CANON EOS $39.95 Time Remaining: 7d 19h 51m Buy It Now for only: $39.95 |
 Metal Reverse Mount Macro Adapter 67mm for CANON EOS $7.80 Time Remaining: 14d 3h 40m Buy It Now for only: $7.80 |
 Macro Lens 52mm Metal Reverse Adapter Blk for Canon EOS $7.87 Time Remaining: 5h 30m |
 Camera 52mm Metal Reverse Mount Adapter for Canon EOS $8.08 Time Remaining: 20d 9h 49m Buy It Now for only: $8.08 |
 58mm Lens Metal Reverse Mount Macro Adapter Canon EOS $8.98 Time Remaining: 28d 20h 54m Buy It Now for only: $8.98 |
 Pentax Lens Reversal Adapter Metal Macro 52mm Ring K $9.99 Time Remaining: 22d 1h 52m Buy It Now for only: $9.99 |
 Camera 52mm Metal Reverse Mount Adapter for Canon EOS $7.73 Time Remaining: 22d 1h 30m Buy It Now for only: $7.73 |
 52mm Black Metal Reverse Adapter Ring for Nikon Camera $7.91 Time Remaining: 21d 20h 45m Buy It Now for only: $7.91 |
 Macro 62mm Metal Reverse Mount Adapter Ring for Nikon $8.85 Time Remaining: 22d 1h 16m Buy It Now for only: $8.85 |
 52mm Black Metal Reverse Adapter Ring for Nikon Camera $6.86 Time Remaining: 21d 2h 48m Buy It Now for only: $6.86 |
 Camera Macro Lens 62mm Metal Reverse Adapter for Nikon $8.85 Time Remaining: 17d 3h 52m Buy It Now for only: $8.85 |
 67mm Black Metal Macro Reverse Adapter Ring for Nikon $8.65 Time Remaining: 20d 16h 17m Buy It Now for only: $8.65 |
 Macro 62mm Metal Reverse Mount Adapter Ring for Nikon $8.88 Time Remaining: 22d 4h 16m Buy It Now for only: $8.88 |
 62mm Black Metal Reverse Adapter Ring for Canon EOS $8.66 Time Remaining: 19d 4h 33m Buy It Now for only: $8.66 |
 52mm Lens Metal Reverse Mount Macro Adapter Canon EOS $8.95 Time Remaining: 28d 20h 53m Buy It Now for only: $8.95 |
 Macro 62mm Metal Reverse Mount Adapter Ring for Nikon $8.29 Time Remaining: 19d 17h 33m Buy It Now for only: $8.29 |
 52mm Black Metal Reverse Adapter Ring for Nikon Camera $7.71 Time Remaining: 16d 17h 19m Buy It Now for only: $7.71 |
 Camera 52mm Metal Reverse Mount Adapter for Canon EOS $7.73 Time Remaining: 1h 31m |
 58mm Macro Lens Metal Reverse Adapter Ring for Nikon $7.69 Time Remaining: 22d 5h 33m Buy It Now for only: $7.69 |
 52mm Metal Reverse Mount Macro Lens Adapter CANON EOS $7.45 Time Remaining: 5d 14h 47m Buy It Now for only: $7.45 |
 49mm Black Metal Macro Reverse Adapter Ring for Nikon $7.73 Time Remaining: 21d 20h 28m Buy It Now for only: $7.73 |
 Black Metal Camera Macro 62mm Reverse Adapter for Nikon $7.86 Time Remaining: 14d 3h 14m Buy It Now for only: $7.86 |
 Black Metal 58mm Reverse Adapter Ring for Canon EOS $7.91 Time Remaining: 20d 10h 16m Buy It Now for only: $7.91 |
 Camera 52mm Metal Reverse Mount Adapter for Canon EOS $7.93 Time Remaining: 13d 19h 24m Buy It Now for only: $7.93 |
 62mm Black Metal Reverse Adapter Ring for Canon EOS $8.68 Time Remaining: 15d 17h 21m Buy It Now for only: $8.68 |
 Black Metal 58mm Reverse Adapter Ring for Canon EOS $7.73 Time Remaining: 21d 21h 29m Buy It Now for only: $7.73 |
 49mm Black Metal Macro Reverse Adapter Ring for Nikon $7.73 Time Remaining: 17d 9h 31m Buy It Now for only: $7.73 |
 Black Metal Camera Macro 62mm Reverse Adapter for Nikon $8.70 Time Remaining: 17d 46m Buy It Now for only: $8.70 |
 77mm Metal Reverse Macro Lens Adapter for Nikon Camera $10.13 Time Remaining: 20d 15h 38m Buy It Now for only: $10.13 |
 Black Metal 55mm Macro Reverse Adapter for Canon EOS $7.70 Time Remaining: 23d 15h 43m Buy It Now for only: $7.70 |
 55mm Reverse Mount Metal Adapter Ring Black for Nikon $7.72 Time Remaining: 16d 20h 41m Buy It Now for only: $7.72 |
 62mm Lens Metal Reverse Mount Macro Adapter to Nikon D700 D5100 D7000 $8.98 Time Remaining: 1d 1h 16m Buy It Now for only: $8.98 |
 Camera 72mm Metal Reverse Macro Lens Adapter Ring Black for Nikon $10.36 Time Remaining: 5h 39m |
 62mm Lens Metal Reverse Mount Macro Adapter to Nikon D700 D3000 $8.98 Time Remaining: 3d 20h 56m Buy It Now for only: $8.98 |
 62mm Black Metal Reverse Adapter Ring for Canon EOS $8.85 Time Remaining: 6d 22h 33m Buy It Now for only: $8.85 |
 49mm Reverse Mount Metal Adapter Ring Blk for Canon EOS $7.70 Time Remaining: 21d 46m Buy It Now for only: $7.70 |
 58mm Reverse Mount Metal Macro Adapter Rong for Nikon $7.88 Time Remaining: 17d 9h 41m Buy It Now for only: $7.88 |
 Black Metal 58mm Reverse Adapter Ring for Canon EOS $7.87 Time Remaining: 18d 3h 15m Buy It Now for only: $7.87 |
 58mm Reverse Mount Metal Macro Adapter Rong for Nikon $7.33 Time Remaining: 21d 9h 38m Buy It Now for only: $7.33 |
 Black Metal Camera Macro 62mm Reverse Adapter for Nikon $8.68 Time Remaining: 19d 17h 21m Buy It Now for only: $8.68 |
 55mm Reverse Mount Metal Adapter Ring Black for Nikon $7.68 Time Remaining: 19d 23h 30m Buy It Now for only: $7.68 |
 Nikon Lens Reversal Adapter Metal Macro 52mm DSLR SLR D40 D50 D60 D70 D80 D90 $9.99 Time Remaining: 27d 24m Buy It Now for only: $9.99 |
 77 77mm Close Up Macro Coupler Reverse Reversing Metal Ring Adapter 77mm to 77mm $15.95 Time Remaining: 13d 21h 20m Buy It Now for only: $15.95 |
 49mm Black Metal Macro Reverse Adapter Ring for Nikon $7.91 Time Remaining: 7d 5h 21m Buy It Now for only: $7.91 |
 58mm Reverse Mount Metal Macro Adapter Rong for Nikon $7.68 Time Remaining: 16d 22h 37m Buy It Now for only: $7.68 |
 UNKNOWN APPLICATION LARGE FORMAT METAL LENS BOARD WITH REVERSE RECESS $24.99 Time Remaining: 7d 4h 13m Buy It Now for only: $24.99 |
 67mm Black Metal Macro Reverse Adapter Ring for Nikon $8.88 Time Remaining: 7d 2h 54m Buy It Now for only: $8.88 |
 Macro Lens 72mm Reverse Mount Metal Adapter Ring for Nikon Camera $9.72 Time Remaining: 4h 15m |
 58mm Lens Metal Reverse Mount Macro Adapter to Canon EOS $8.95 Time Remaining: 18h 9m Buy It Now for only: $8.95 |
 Camera Macro Lens 62mm Metal Reverse Adapter for Nikon $8.85 Time Remaining: 17d 15h 16m Buy It Now for only: $8.85 |
 58mm Macro Lens Metal Reverse Adapter Ring for Nikon $7.86 Time Remaining: 17d 4h 56m Buy It Now for only: $7.86 |
 Black Metal 55mm Macro Reverse Adapter for Canon EOS $8.12 Time Remaining: 15d 22h 45m Buy It Now for only: $8.12 |
 Minolta Lens Reversal Adapter Metal Macro 52mm Ring MD XD XG Manul Focus Camera $9.99 Time Remaining: 27d 28m Buy It Now for only: $9.99 |
 52mm Lens Metal Reverse Mount Macro Adapter For Nikon $8.98 Time Remaining: 28d 16h 56m Buy It Now for only: $8.98 |
 58mm Reverse Mount Metal Adapter Ring Blk for Canon EOS $6.88 Time Remaining: 12d 22h 22m Buy It Now for only: $6.88 |
 Black Metal 58mm Reverse Adapter Ring for Canon EOS $7.70 Time Remaining: 13d 15h 49m Buy It Now for only: $7.70 |
 58mm Reverse Mount Metal Macro Adapter Rong for Nikon $7.86 Time Remaining: 16d 23h 18m Buy It Now for only: $7.86 |
 58mm Lens Metal Reverse Mount Macro Adapter for Nikon D3000 D5000 $8.98 Time Remaining: 19d 19h 14m Buy It Now for only: $8.98 |
 58mm Lens Metal Reverse Mount Macro Adapter Canon EOS $8.98 Time Remaining: 16d 18h 6m Buy It Now for only: $8.98 |
 55mm Reverse Mount Metal Adapter Ring Black for Nikon $7.86 Time Remaining: 6d 12h 52m Buy It Now for only: $7.86 |
 12 Metal Reverse Mount Macro Lens Adapter for CANON EOS $49.00 Time Remaining: 6d 4h 30m Buy It Now for only: $49.00 |
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iSpring 3.2 Gallon Reverse Osmosis RO Water Storage Tank by PA-E
List Price:  |
DescriptionNSF Certified 3.2 Gallon Water Storage Tank, provided by 123filter.com from Ebay's top-rated seller: 123filter*com Description Water goes through a reverse osmosis membrane very slowly and people don't have the patience to wait a long time to get a cup of water... |
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Oster BRLY07-B 7-Speed Fusion Blender, Black
List Price: |
DescriptionThe ultimate chopping and blending solution, featuring Tripe-Tech Technology. Large 6 cup capacity glass jar with lid. Stainless steel 6-point star blade ideal for chopping food and crushing ice and exclusive all-metal drive system for durability... |
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Moving Forward in Reverse: Greatest Hits
List Price: |
DescriptionAll products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed. |
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Phase Reverse
Sale Price: $8.99 |
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Reverse Tripped
List Price: |
DescriptionAll products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed. |
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Minka-Aire F518-BN 44-inch Concept II Flush Mount Ceiling Fan, Brushed Nickel with Silver Blades
List Price: |
DescriptionAs the name implies - a taste of things to come. Simple in style yet ingenious by design. The Concept ceiling fan requires 75% less time and labor to assemble than conventional ceiling fans. |
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Melnor 3900H Heavy Duty Metal Pulsating Sprinkler
List Price: |
DescriptionIf you're looking for a serious sprinkler you can still count on 10 years from now, the folks at Melnor have produced a candidate for you. This pulsating sprinkler from their Heritage line is built of durable, noncorrosive, all-metal parts and is guaranteed by Melnor for as long as you own your home... |
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Lutron MA-LFQHW-WH Maestro Fan Control and Dimmer Kit, White
List Price: |
DescriptionOperate your ceiling fan and light with ease using the Maestro fan/light control from Lutron Electronics. This wall-mounted control allows you to easily adjust the fan speed or dim or brighten the light without having to grope for a pull chain... |
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Reverse Engineering
Sale Price: $1.99 |
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Tenergy Smart Universal Charger for NiMH / NiCd Battery pack 7.2V - 12V with charging current Selection/Temperature Sensor
Sale Price: $17.99 |
DescriptionAccessories Included * 1 standard Tamiya Female connector and Fuse house with the smart battery charger. |
Air Filtration by Reverse Flow Dust Collectors
Oleg Systems Co. is a designer and engineering company for industrial dust collectors and dust collection systems. Dust collecting equipment is available in numerous designs utilizing a number of principles and featuring wide variation in effectiveness, initial cost, operating and maintenance expense, space, arrangements and material of construction.
The dust collectors are used extensively in industry for a wide range of applications. They require more space than most other types of air cleaning devices, necessiating outdoor installation in most cases. One of the most widely used type of dust collector is Fabric Dust Collector.
Fabric arresters are high efficiency, medium cost collectors. The effectiveness of passing air or gas through a fabric at low velocity has been recofnized and used for many years in air cleaning devices. Fabric is arranged in envelope or tubular (stocking) shapes. While removal appears to take place by a staining action of the media, in reality dust collection is obtained by building up a mat of the material on the dirty side of the media. This mat provides the actual filtering or straining bed. By means of this bed a high degree of removal is obtained even on sub-micron size particles.
As dust is collected on the fabric, resistance to air flow increases. Periodically the fabric must be reconditioned by shaking, vibrating, reverse jet or reverse-flow collapse which agitates suffitiently to remove the bulk of adhering material allowing it to drop into the dust hopper. In most collectors air flow must be stopped during reconditioning, otherwise released material will be re-entrained and redeposited on the fabric. Sufficient dust must adhere to the fabric to maintain the dust mat needed for maximum efficiency; therfore, after reconditioning the pressure drop will be considerably higher than loss through new fabric. Periodical cleaning of filter media is one of the most important tasks in the dust collector design. Reverse flow cleaning is generally choosen when the volumetric flow of gases is very large.
This method of cleaning inherently requires a compartment design beacause the reverse flow needed to collapse bags entrains dust that must be returned to on-line compartments of the fabric filrh compartment is equipped with one main shut-off valve and one reverse gas valve, whether the system is blown-through or drawn-through. A secondary blower and duct system is required to reverse the gas flow in the compartment to bcleaned. When a compartment is isolated for cleaning, the reverse gas circuit incrases the volumetric flow and dust loading through the collector's active compartments.
The fabric medium is reconditioned by reversing the direction of flow through the bags, which partially collapse. After cleaning, the reproduction of gas is dislodged dust to fall into the hopper.
Reverse flow cleaning reduces the number of moving parts in the fabric filter system - a maintenance advantage, especially when large volumetric flows are cleaned. However, the cleaning or reconditioning is less vigorous than other methods, and the risidual drag of the reconditioned fabric is higher. Reverse flow cleaning of dust collectors is particularly suited for fabrics like glass cloth, that require gentle cleaning. Reverse flow dust collecting bags are usually 8 to 12 inches in diameter and 22 to 33 feet long and are generally operated at low velocities in the 2 to 4 fpm range. As a consequence, reverse air dust collectros tend to be substantially larger than pulse jet dust collector designs of similar capacity.
For ambien air applications, a wooven cotton of polypropylene fabric is the usual selection for reverse flow cleaning. For higher temperatures, wooven polyester, glass fiber, or trademarked fabrics are often used. In recent years glass cloth has come into wide use because of silicone treatment of the glass fibers and employment of reverse flow techniques for cleaning. Silicone treatment provides a lubricant between fibers and increases fabric life.
Reverse flow dust collectors are limited to air conditions dry enough to prevent condensation or free moisture deposition on the fabric. With hygroscoping materials, there will be a bonding tendency between particles and fabric under high relative humidity even though no condensation takes place. Maximum recommended temperature for cotton fabric is 180 F, for wool 200 F. Higher temperatures can be handled by using synthetic materials including nylon or orlon fabrics as well as glass cloth and, occasionally, fine metallic mesh. The synthetic fabrics mau be used up to 300 F while glass cloth is acceptable to 550 F.
Rate of flow through the media varies with dust collector type, application and dust concentration. Ratings are usually selected so pressure drop will not exceed 5" WG. The smaller the particle, the more rapid the resistance rise for a given loading. For the same air flow rate and dust loading, resistance rise increases directly in proportion to time.
For additional information please refer to http://www.olegsystems.com/dustcollector/Index.html.
Oleg Chetchel
Process Air Systems Designer and Engineer
Oleg Systems Co.
http://www.olegsystems.com/fumeextractor/Index.html
http://www.olegsystems.com/aircurtain/Index.html
About the Author
Oleg Chetchel
Ventilation Equipment Designer
Tenderall Fan Co.
http://tenderall.com
Cradle of Filth - Black Metal Reverse