You Sealed
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 MINIDISC THE ROLLING STONES Tattoo You SEALED $28.99 Time Remaining: 29d 1h 13m Buy It Now for only: $28.99 |
 rare Modern Soul Funk 12 CHRISTOPHER JACK this is for you JUS FRESH Sealed $13.50 (3 Bids) Time Remaining: 22h 15m |
 RICK DE VILLE Jj You Me SEALED INDIE RAP 12 Napom Bomb Revolution $9.99 (1 Bid) Time Remaining: 20h 44m |
 BREAD MAKE IT WITH YOU NEW SEALED CD $3.47 Time Remaining: 28d 5h 1m Buy It Now for only: $3.47 |
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 Bobby Darin Sealed LP Its You Or No One Atco SD 33 124 $10.49 (2 Bids) Time Remaining: 2h 41m |
 NEW 12 TRIBUTE to NOTORIOUS BIG Ill Be Missing You SEALED BAD BOY FAMILY $7.77 Time Remaining: 2h 3m |
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 KAY GEE Thank You SEALED RANDOM RAP 12 All In $9.99 Time Remaining: 22h 56m |
 Hiroko Kokubu More Than You Know JVC CD from 1988 Still Sealed RARE $29.00 Time Remaining: 29d 14h 25m Buy It Now for only: $29.00 |
 Jewel PIECES OF YOU 2 LP VINYL MINT RARE SEALED RARE UNRELEASED SONGS $39.99 Time Remaining: 23h Buy It Now for only: $60.00 |
 1 CENT CD Wish You Were Here Pink Floyd SEALED $5.00 (8 Bids) Time Remaining: 2d 21h 30m |
 Kari Jobe Where I Find You cd 2012 SEALED NEW $7.04 Time Remaining: 24d 20h 8m Buy It Now for only: $7.04 |
 1 CENT CD Wish You Were Here Pink Floyd SEALED $5.50 (7 Bids) Time Remaining: 2d 21h 31m |
 Sent By Ravens Mean What You Say cd 2012 SEALED Hard Rock NEW $6.63 Time Remaining: 28d 20h 35m Buy It Now for only: $6.63 |
 Zac Brown Band You Get What You Give 2010 CD New Sealed $3.88 Time Remaining: 1h 8m |
 THE CARPENTERS A SONG FOR YOU ORIGINAL SEALED LP NO BAR CODE $6.99 Time Remaining: 1d 19h 58m |
 NEW SEALED Im Talking to You by Luther Lackey CD Mar 2005 Good Time Records $6.99 Time Remaining: 29d 7h 32m Buy It Now for only: $6.99 |
 PINK FLOYD WISH YOU WERE HERE HALF SPEED MASTER RECORDING FACTORY SEALED $90.99 (8 Bids) Time Remaining: 1d 4h |
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 Sealed soul funk lp Brenton Wood Baby You Got It 1967 stereo $14.99 (1 Bid) Time Remaining: 1d 4h 26m |
 FUN 10 SEALED RSD 2012 GOLD VINYL SHAPED DISC The Ghost That You Are To Me MINT $27.49 Time Remaining: 1d 5h 24m Buy It Now for only: $30.99 |
 JIMI HENDRIX ARE YOU EXPERIENCED 12 VINYL LP SEALED MNT 180g 180 GRAM $15.89 Time Remaining: 22d 10h 56m Buy It Now for only: $15.89 |
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 DAVE BRUBECK JUST YOU JUST ME NEW SEALED CD $2.97 Time Remaining: 28d 5h 15m Buy It Now for only: $2.97 |
 ROLLING STONES Got Live If You Want It US stereo LP sealed $99.99 Time Remaining: 2h |
 REO SPEEDWAGON You Get What You Play For Live 2LP SEALED CUTOUT HOLE $12.99 Time Remaining: 28d 19h 53m Buy It Now for only: $12.99 |
 One Direction Up All Night CD New Sealed Mar 2012 What Makes You Beautiful $3.88 (1 Bid) Time Remaining: 1h 9m |
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 My Chemical Romance I brought you my bullets LP sealed orange vinyl buy it now $30.00 Time Remaining: 22d 6h 1m Buy It Now for only: $30.00 |
 Orig SEALED Promo 89 U2 All I Want Is You 4 track CD PR 2770 2 $9.95 (1 Bid) Time Remaining: 1d 17h 26m |
 One Direction Up All Night CD New Sealed Mar 2012 What Makes You Beautiful $6.66 Time Remaining: 27d 15h 9m Buy It Now for only: $6.66 |
 SENSES FAIL Let It Enfold You Red Vinyl Limited 500 Sealed Thursday Thrice Circa $25.00 (1 Bid) Time Remaining: 1d 13m |
 THE WHO WHO ARE YOU STILL SEALED $0.99 (1 Bid) Time Remaining: 4d 20h 43m |
 HURRICANE Take What You Want NEW SEALED LP $7.99 Time Remaining: 6d 13h 10m Buy It Now for only: $7.99 |
 RARE JAMES BROWN I GOT YOU I FEEL GOOD LP SEALED KING 946 $11.01 (2 Bids) Time Remaining: 2d 14h 55m |
 Need You Now + Bonus Track Lady Antebellum CD Sealed $8.10 Time Remaining: 21h 20m Buy It Now for only: $8.10 |
 JEFFERSON AIRPLANE LOVES YOU 3 CD BOXED SET WITH BOOK 1992 SEALED $0.99 Time Remaining: 4d 2h 11m |
 Jimi HendrixAre You Experienced 2010 Audiophile 180 Gram Press Sealed $17.99 Time Remaining: 16h 44m Buy It Now for only: $19.99 |
 Vince Gill When Love Finds You New and Sealed $15.72 Time Remaining: 9d 8h 20m Buy It Now for only: $15.72 |
 ELVIS PRESLEY LOVING YOU SEALED SOUNDTRACK LP 1976 USA RCA LSP 1515 $20.00 Time Remaining: 1d 3h 26m |
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 Gary Byrd TJ Swann Soul Travelin And YOU KNOW THAT SEALED BREAKS RARE $35.00 Time Remaining: 17h 32m Buy It Now for only: $50.00 |
 Modern English I MELT WITH YOU 12 cd remixes extended NEW SEALED $5.99 Time Remaining: 4h 32m |
 NINA SIMONE PASTEL BLUES SINNERMANNOBODY KNOWS YOU SEALED 180 GRAM LP 2012 $42.99 Time Remaining: 25d 9h 45m Buy It Now for only: $42.99 |
 THE POLICE Every Breath You Take Multi ch Surround SACD Rare OOP New Sealed $24.99 Time Remaining: 4d 2h 8m |
 Zac Brown Band You Get What You Give 2010 CD New Sealed $5.91 Time Remaining: 14d 16h 50m Buy It Now for only: $5.91 |
 The Who Are You Classic Records 200 gram 200g Sealed $59.00 Time Remaining: 21h 51m Buy It Now for only: $66.00 |
 1 CENT CD All of You Colbie Caillat SEALED $2.76 (2 Bids) Time Remaining: 2d 21h 42m |
 DESPISE YOU West Side Horizons CD SEALED extreme hc power violence $2.99 Time Remaining: 25d 21h 55m Buy It Now for only: $2.99 |
 1977 AVA BAKER YOURE GONNA LOVE LOVE R 8180 LP Sealed $11.99 Time Remaining: 18h 36m |
 Daughtry Break the Spell Deluxe Edition CD New Sealed Crawling Back To You $5.54 Time Remaining: 15d 14h 9m Buy It Now for only: $5.54 |
 MARCIA If You Want My Loven TAWN TINIQUE MIAMI FUNK BOOGIE SYNTH 12 SEALED $15.50 (3 Bids) Time Remaining: 3d 1h 38m |
 SEALED Mouth MacNeal how do you do Vinyl LP $8.00 Time Remaining: 15h 54m |
 Bee Gees You Win Again two track maxi single new sealed cassette tape $4.00 Time Remaining: 29d 5h 19m Buy It Now for only: $4.00 |
 NEW SEALED You Never Know by Chrissy Coughlin CD $0.99 Time Remaining: 16h 45m |
 ANI DIFRANCO Which Side Are You On FULL LENGTH SEALED CD $3.98 Time Remaining: 4d 23h 5m Buy It Now for only: $3.98 |
 CAKE Sick of You ONLY RARE ORIG EP 45 7 NEW SEALED Orange Vinyl $4.99 Time Remaining: 1d 5h 51m Buy It Now for only: $5.99 |
 Donna Summer Love To Love You Baby Vinyl LP MINT STILL SEALED $80.00 (13 Bids) Time Remaining: 3d 4h 7m |
 End of You Mimesis CD NEW SEALED $4.35 Time Remaining: 25d 12h 44m Buy It Now for only: $4.35 |
 MILLI VANILLI GIRL YOU KNOW ITS TRUE LP SEALED ARISTA AL 8592 $14.99 Time Remaining: 5h 5m Buy It Now for only: $19.99 |
 Martin Branigan My Moments With You CD NEW sealed $11.05 Time Remaining: 18d 12h 36m Buy It Now for only: $11.05 |
 J GEILS BAND YOUER GETTIN EVEN WHILE IM GETTIN ODD SEALED $6.99 Time Remaining: 15h 33m |
 Jewel PIECES OF YOU 2 LP VINYL MINT RARE SEALED RARE UNRELEASED SONGS $39.99 Time Remaining: 23h 1m Buy It Now for only: $60.00 |
 The Ojays Let Me Touch You Still Sealed LP $8.00 Time Remaining: 28d 23h 7m Buy It Now for only: $8.00 |
 1968 YOU ARE WHAT YOU EAT MOVIE SOUNDTRACK REEL TO REEL SEALED $29.95 Time Remaining: 2d 5h 11m |
 MARILYN MANSON BORN VILLAIN + BONUS TRACK SEALED CD NEW 2012 YOURE SO VAIN $11.48 Time Remaining: 11d 20h 20m Buy It Now for only: $11.48 |
 SHOW LUO Only For You Taiwan CD+DVD New Sealed $23.99 Time Remaining: 11h 52m Buy It Now for only: $26.39 |
 Supertramp Brother Where You Bound Brand NEW Still Sealed $11.75 Time Remaining: 7h 6m Buy It Now for only: $13.00 |
 JAMIROQUAI cd EP When You Gonna Learn 6TRK sealed $5.95 Time Remaining: 29d 22h 2m Buy It Now for only: $5.95 |
 FAM LEE Youre The One For Me CD Single 1992 Sealed Promo $4.99 Time Remaining: 1d 8h 58m |
 IKE REIKO YOU BABY still sealed slipcase cd BAMCD 7005 $11.05 Time Remaining: 20d Buy It Now for only: $11.05 |
 STRATEJAKETS ARE YOU CRAZY another great rarity on DTK records 1987 SEALED $9.99 Time Remaining: 21h 9m Buy It Now for only: $20.00 |
 Adele 21 2011 CD New Sealed 13 Tracks Rolling in the Deep Someone Like You $2.98 Time Remaining: 1h 26m |
 MARILYN MANSON Born Villain CD 2012 Bonus Track NEW SEALED Youre So Vain $15.79 Time Remaining: 23d 15h 33m Buy It Now for only: $15.79 |
 THE FLIRTS MISS YOU 3 VERSIONS SEALED 1986 12 EP NYC FEMALE TRIO BORLANDO $4.99 Time Remaining: 1d 54m |
 DOROTHY PROVINE sealed Lp OH YOU KID WB 1466 M mono $15.00 Time Remaining: 29d 20h 32m Buy It Now for only: $15.00 |
 U2 12 LP Record With Or Without You Walk To The Water 0 96786 SEALED $9.99 Time Remaining: 5d 29m |
 GUNS N ROSES YOU COULD BE MINE PROMO ONLY CD BRAND NEW STILL SEALED $9.99 Time Remaining: 19h 40m Buy It Now for only: $12.99 |
 COLBIE CAILLAT All Of You 180g VINYL LP MP3 NEW SEALED $18.99 Time Remaining: 23d 16h 12m Buy It Now for only: $18.99 |
 1 CENT CD Im With You Red Hot Chili Peppers SEALED $0.06 (2 Bids) Time Remaining: 2d 21h 54m |
 4YOU4YOUSEALED CD4You $9.99 Time Remaining: 28d 9h 59m Buy It Now for only: $9.99 |
 THE WHO WHO ARE YOU NEW FACTORY SEALED 1978 US ISSUE PICTURE DISC LP $14.99 Time Remaining: 1d 2h |
 WAYNE NEWTON CANT YOU HEAR THE SONG CHELSEA LP SEALED $9.99 Time Remaining: 18h 32m |
 Holly Golightly In You Come the Day PICTURE DISC 7 single UK 1996 SEALED $74.99 Time Remaining: 29d 4h 48m Buy It Now for only: $74.99 |
 BOBBY LEWIS THINGS FOR YOU I NEW SEALED 1969 COUNTRY LP STEREO $7.99 Time Remaining: 1d 1h 8m |
 DUANE EDDY ESPECIALLY FOR YOU NEW SEALED CD $4.50 Time Remaining: 18d 20h 48m Buy It Now for only: $4.50 |
 4 FUN you cant play me 12 RECORD BOSSTOWN SEALED $6.99 Time Remaining: 1d 4h 38m Buy It Now for only: $7.99 |
 BUBBLE GUM CANDY boy you driving me crazy 12 RECORD SEALED $12.99 Time Remaining: 1d 5h 51m Buy It Now for only: $14.99 |
 Michael Bloomfield If You Love These Blues CD NEW SEALED $5.53 Time Remaining: 27d 12h 20m Buy It Now for only: $5.53 |
 Royal House Can You Party SEALED TODD TERRY 12 MINT CLASSIC HOUSE RARE $60.00 Time Remaining: 17h 32m Buy It Now for only: $85.00 |
 THE WANTED Glad You Came 2012 sealed CD single Mixin Marc Tony Svejda REMIX $11.99 Time Remaining: 4d 1h 23m Buy It Now for only: $11.99 |
 MIIKE SNOW HAPPY TO YOU LP VINYL NEW SEALED $1.04 (2 Bids) Time Remaining: 3d 22h 58m |
 DAVID JULIAN Private SEALED Vinyl LP With You FOLK Seattle SSW Day Jewel 1987 $9.99 Time Remaining: 18h 12m |
 FREDDIE HART SEALED LP Only You 1978 $12.60 Time Remaining: 29d 19h 17m Buy It Now for only: $12.60 |
 DONNA SUMMER SEALED LOVE TO LOVE YOU $9.99 Time Remaining: 3d 7h 2m |
You Sealed
How can I extend the performance range of standard cartridge mechanical seals?
In today's global environment, the "one size fits all" approach is used for so many products that we expect it to apply to just about everything. In the mechanical seal industry, one problem with that philosophy is the definition of the word all. Mechanical seals must live in literally every environment under the sun-from extreme hot to extreme cold, wet to dry, solid to gas, acidic to caustic and so on. Until relatively recently, a vast variety of mechanical seals were needed to accommodate these pump applications.
Cartridge Seals
The advent of standard cartridge designs allowed for easy, trouble-free installation on equipment, but they were limited as to the variety of applications each design could handle. With the introduction of universal or modular cartridge seals, one seal family utilizing various combinations of common cartridge seal hardware and seal faces can be applied virtually throughout a plant, increasing seal life. It reduces complexity while conserving valuable resources time and money.
The implications of this technology are far-reaching. Plant-wide seal standardization streamlines operations. The number of variables in installation and maintenance is reduced, and the process is simplified. This increased operational efficiency reduces maintenance costs. Streamlining the process also ensures that the seals are installed correctly, and correctly installed seals increase plant reliability. Using a standard seal family can also reduce a plant's spare parts inventory and material costs.
Modularity
Universal/modular cartridges are based on a modular concept that allows application-specific seal arrangements that incorporate interchangeable seal face material, elastomer bellows, O-ring or metal bellows seal heads fitted to standard adaptive hardware (typically the gland plate, sleeve, collar and setting tools). Universal or modular seals typically fit both standard ANSI B73.1M and DIN 24960 pumps, so users who are already comfortable with a particular seal type and have both ANSI and DIN pumps benefit from the technology. The flexibility from modularity also enables the universal cartridges to meet a wide range of service requirements.
Modularity allows the building of seals appropriate for a given application. By standardizing the adaptive hardware into which the appropriate seal is applied, the seal technology can change to fit the individual pump's environment. Handling temperatures to 400-deg F, pressures to 400-psig and speeds to 5,000-rpm, these seals accommodate fluids such as aqueous solutions, caustics, hydrocarbons, acids and even dry running.
Configurations
Basic configurations can cover an extensive range of applications. The unique design of universal/modular cartridge seals increases component interchangeability across a variety of configurations. Single and dual arrangements typically incorporate the same seal head for both the inboard and outboard seal, which applies to both O-ring and metal bellows designs. In fact, the O-ring seal heads can be directly interchangeable with the metal bellows seal heads.
This flexibility offers some important advantages. On site, a technician can easily upgrade or change the capabilities of the seal in minutes without discarding the existing seal. Within a common set of adaptive hardware, an O-ring seal can be transformed into a metal bellows seal, and a metal bellows can become an O-ring seal. With other combination of parts, either can change into an elastomer bellows design. Upgrading or changing the seal with interchangeable components conserves resources since no components are wasted.
The heads and mating rings are also interchangeable in some designs. This flexibility gives the user the option to select whether the seal head or seat should rotate according to specific needs or preference. Operating with the inboard seal head rotating helps remove any solids build-up that creates, in essence, a self-cleaning rotational action.
On the other hand, a rotating mating ring and stationary seal head accepts more gland or shaft misalignment, which allows higher shaft speeds and provides greater cooling efficiency. Single seal versions can typically accept a quench gland with a restriction bushing or lip seal, and dual seals can use pumping rings to assist barrier fluid circulation. This flexibility also makes universal/modular seals both ANSI and DIN pump compliant. The seal's gland is designed with slots to accommodate multiple bolts and bolt circle diameters. Pipe taps are freely accessible to allow universal fitting to either ANSI or DIN standard pumps rotating clockwise or counterclockwise.
Seal Design Advantages
Seal manufacturers continually enhance designs to provide maximum reliability, emission containment and cost-efficiency. Each of the basic versions-the O-ring pusher, metal bellows and elastomer bellows non-pusher-has inherent benefits.
The O-ring pusher seal, perhaps the most versatile of seal designs, accommodates a wide range of elastomer materials and handles the most difficult chemical service conditions.
The elastomer bellows seal is an excellent general purpose application seal, providing flexibility and hang up resistance as well as self-alignment, which is an important maintenance-saving feature. Automatic adjustment compensates for potential problems commonly found on older equipment such as abnormal shaft end play and runout.
Advantages of the metal bellows seal include self-cleaning and increased reverse pressure capability. The reverse pressure capability feature found on most modern modular seal designs allows the use of the same dual seal for pressurized barrier or unpressurized buffer fluid applications, and will handle system upsets
Efficiency and Flexibility
The advanced technologies incorporated in today's universal/modular seals increase efficient seal operation and reduce overall costs. This is even more evident in the advanced capabilities now available, such as wet and/or dry running seals. This advanced technology is perfect for applications that may run dry on occasion, such as tank car loading or unloading, or even full-time dry running for single seals and secondary containment on dual seals.
Narrow-faced seals with rugged drive mechanisms and interchangeable hard (tungsten or silicon carbide) seal face material allow seals to perform longer in higher viscosity fluids and/or applications with a high number of starts and stops.
Non-contacting spiral groove upstream pumping technology eliminates or significantly reduces the costs of complex, high pressure buffer fluid systems needed in dual seal systems. This technology reduces seal face heat, seal support systems cost and has proven to reduce operating and maintenance costs.
Summary
Modular mechanical seal designs do not lessen the need for proper selection of the core seal whether it is a single or dual, unbalanced or dual balanced, ID or OD pressurized, pusher or non-pusher, rotating head or seat and so on. A comprehensive design and materials selection for a given application far outweighs the benefits of modularity. However, pairing best practices with seal design selection and the latest universal/modular technologies offers plant and maintenance engineers the opportunity to create a safer, more productive plant. Installation and maintenance are simplified. The possibility of an incorrectly installed seal is reduced. Upgrades and repair can be made on site. These efficiencies translate to maximum seal reliability and a reduction in the time spent on seal installation, maintenance and repair. Not only does this represent cost savings, it also means more uptime and higher productivity plant-wide.
About the Author
Ningbo Yinzhou Guowei, mechanical seal Component Factory is a professional engaged in the design, development, manufacture, sale of various cartridge seal and flygt seals business. Production and testing are well-equipped with a high-quality staff.
Have you ever had to produce your official sealed Birth Certificate to get a job?
Or a copy of your college transcript, sealed in an envelope from the registrar's office.
And if you passed off a forged copy as real, should you be fired?
Never had to produce any of that.*
Are You Sealed 1~4