High Vacuum

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Varian Ultra High Vacuum Compression port e beam NOS 954 5053 815
$55.00
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SMC ZSE40 T1 22 High Precision Digital Vacuum Pressure Switches New in Factor
$29.99
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Vacuum Infusion Epoxy Resin Low Vis Thin High Gloss High Strength 24oz Kit
$34.99
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Tuthill Vacuum Systems Kinney High Vacuum Pump 1 2HP 115 208 230V 1725Rpm TB 3 2
$595.00
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Tuthill Vacuum Systems Kinney High Vacuum Pump 3936 0309 KC8
$595.00
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Tuthill Vacuum Systems Kinney High Vacuum Pump 14478 0702 KC 5 8
$595.00
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Kinney Vacuum High Vacuum Pump KC 8 85 1214 L5203 10
$595.00
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Edwards PV25EKA PVEK Series High Vacuum Valve New
$350.00
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AIRTECH A4000 HIGH TEMP FEP 50 RELEASE FILM FOR COMPOSITES VACUUM BAGGING
$500.00
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AIRTECH A4000 HIGH TEMP FEP 50 RELEASE FILM FOR COMPOSITES VACUUM BAGGING
$9.99
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Vacuum Infusion Epoxy Resin Low Vis Thin High Gloss High Strength 86oz Kit
$59.99
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SMC High Vacuum Valve XLA 16 X555
$48.74
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SMC Pneumatics High Vacuum Valve XLH 25
$159.99
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SLOAN HIGH BACK PRESSURE VACUUM BREAKER REPAIR KIT V 651 A 2XU35 NIB A285
$4.19
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Edwards High Vacuum Pressure Sensor 622A 10 TORR NEW NO BOX A290
$62.99
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SMC HIGH VACUUM VALVE XLA 50 X551
$69.99
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Nupro Versa Stat High Vacuum Test Chamber 01382
$356.25
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Silicone High Dielectric Vacuum Grease Supply Rubber Plastic Protect Clean 3Oz
$14.91
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VAT High Vacuum Gate Valve 250mm 14048 PE14 005
$989.00
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VBC Vacuum Barrier A 5 Triax T 3928 H 30 foot High Pressure Hose w Gauge
$100.03
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Edwards QDP40 AC High Vacuum Pump Control Box Assembly w Cables3 PH208V60Hz
$511.20
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1980 Edwards High Vacuum Ionisation Gauge Head Model IG5M 307
$135.00
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Genuine Joe GJO11961CT Carafes Pitchers High Capacity Vacuum with Air Pot
$171.11
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Shop Vac Vacuum Dust Collector Accessories 9067200 10 14 Gallon High Efficiency
$16.09
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SMC High Vacuum Valve XLA 16 XLAAOO
$95.00
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Huntington Mechanical Laboratories High Ultra High Vacuum Chamber
$4,949.99
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Carten 2028 375 Psi Ultra High Purity Vacuum 1 4 T X 1 4 MCVR X 1 2 MVCR X48
$399.00
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Airtech AT200Y Tacky Tape High Tack High Temp Vacuum Bag Seal 25ft Roll
$6.45
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SMC XLD 40 X542 HIGH VACUUM VALVE 10 6 Pa atm
$48.74
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Car Vacuum Cleaner High Power Wet Dry Dust Buster Hand Vac Pet Hair Remover
$23.13
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Aerzen High Vacuum Blower AMUSA GMB 1715 HV New Never Used
$15,750.00
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SMC PNEUMATICS XLH 25 HIGH VACUUM VALVE
$64.99
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SMC PNEUMATICS MODEL XLH 25 HIGH VACUUM VALVE
$64.99
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Super Lube 91003 Silicone High Dielectric and Vacuum Grease 3 oz
$14.53
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High Vacuum Portable Dust collector
$825.00
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SMC HIGH VACUUM VALVE XLA 16 X512 LOT OF 5
$324.99
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Castrol Braycote Micronic 1613 High Vacuum Grease 25013 AESY Perfluoroether 2oz
$174.99
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CVC Consolidated High Vacuum Corpoation BCN 20A + Free Fast Shipping
$80.00
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Kratos Maldi High Vacuum Mass Spectrometer Process Head VAT 01234 YA06 ADQ1 0016
$799.99
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5 2oz Castrol Braycote Micronic High Vacuum Grease 25013 AESY Perfluoroether
$850.00
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RDR 3121 RDH 9386 High Temp Vacuum Infusion Epoxy 31 133 Gallon Kit
$128.99
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NIB ANVER FLT 3E HIGH FLOW VACUUM FILTER FLT3E
$39.95
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Super Lube Silicone High Dielectric Vacuum Grease 141 oz Canister Case of 12
$155.43
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SMC XLF 50G A90LA XA HIGH VACUUM VALVE NIB SEALED
$334.00
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VAT 26532 KE21 0001 0073 Inline Pneumatic High Vacuum Angle Valve
$116.63
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VAT 26532 KE21 0001 0010 Inline Pneumatic High Vacuum Angle Valve
$116.63
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MKS HPS KF 50 NW50 NW 50 Inline High vacuum valve 163 0050K 24VDC shipsameday
$350.00
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GNB Corporation G6CSOX High Vacuum Gate Valve
$850.00
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Super Lube Silicone High Dielectric Vacuum Grease 141oz Cartridge Case of 12
$152.46
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Super Lube Silicone High Dielectric Vacuum Grease 5 lb Pail Case of 4
$267.30
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WORKSHOP Wet Dry Vac WS1600VA High Capacity Wet Dry Vacuum Cleaner 16 Gallon Sh
$157.32
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NEW 10 3 4 OD HIGH VACUUM COPPER GASKET 10 ID
$15.00
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VARIAN 1251 1 5 8 BELLOWS HAND OPERATED HIGH VACUUM VALVE
$66.75
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Edwards High Vacuum Pump EDM20A Motor Franklin Electric 3 4 HP
$349.00
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HIGH VACUUM GETTER FREE SHIP USA
$29.99
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Super Lube Silicone High Dielectric Vacuum UV Grease 141oz Cartridge Case of 12
$210.87
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Super Lube Silicone High Dielectric Vacuum UV Grease 141 oz Canister Case of 12
$213.84
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Super Lube Silicone High Dielectric Vacuum UV Grease 5 lb Pail Case of 4
$351.45
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Super Lube Silicone High Dielectric Vacuum UV Grease 30 lb Pail
$505.89
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Key High Vacuum Products Inc Flange 6ID6X11 Used 13534
$100.00
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Ulvac VLH US 40KF Manual High Vacuum Valve Stainless Steel
$99.99
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High Vacuum

Uses Of Vacuum Chambers And Pumps

 

A vacuum chamber is a rigid enclosure from which air and other gases are removed by a vacuum pump. The vacuum, or low pressure zone, is created to allow technicians to conduct tests on substances or devices that are required to function in a vacuum. Chambers made of aluminum allow one to control the magnetic field inside from outside the vacuum. Conversely, chambers made of mu-metal prevent external fields from entering the vacuum.

Vacuum chambers are necessary to impede the contamination of samples in varied range of applications in spectroscopy and for film depositions. These ultra high vacuum applications are frequently utilized in semi-conductor manufacturing processes, because even the slightest degree of contamination can be disastrous in this industry. As referenced previously, vacuum chambers produce an environment that is conducive to testing devices that must operate in the vacuum that exists in outer space. Many vacuum chambers are constructed of aluminum, because aluminum, unlike other metals, is not magnetic.

Vacuum chambers are frequently constructed with multiple ports, covered with flanges, to allow instruments or windows to be installed in the walls of the chamber. For processes that only need low to medium levels of vacuum, rubber o-ring seals are utilized. In applications where very high vacuum levels are used, the flanges are made out of hardened steel which are sealed onto copper gaskets.

A type of vacuum chamber frequently used in the field of spacecraft engineering is a thermal vacuum chamber,, which provides a thermal environment representing what a spacecraft would experience in space. These applications also utilize very advanced   vacuum pumps

Vacuum chambers are frequently used when mixing resins and silicone rubbers. A vacuum chamber is needed when manufacturing resins and silicone rubber to insure that the mold is free of air bubbles. In order to prevent air bubbles, material are placed in a vacuum chamber while they set. The substrate upon which the vacuum is applied is mixed according to the manufacturers specifications. Because the material placed in the vacuum will expand to four times its original volume,the mixing container must be large enough to hold a volume of four times the amount of the original material that is being vacuumed to allow for the expansion. If additional volume is not provided, there will not be enough space available to allow the process to reach completion. The container in which the material is held is put into a vacuum chamber and the vacuum is applied when the vacuum pump is turned on. Subsequent to the vacuum attaining 982 mbar, the substrate will commence rising. . When the material falls it will plateau and not rise any more. The vacuuming is continued for another three minutes to make certain all of the air has been removed from the material. After this interval is attained, the vacuum is terminated and the pressure is allowed to equalize with the ambient pressure. At this point the vacuum chamber is opened and the substrate is removed and put into a mold.

Vacuum chambers utilized in the semi-conductor industry involve an exceedingly complex process. Due the very high levels of air purity required to avoid contamination of semi-conductor devices, these devices must be processed in ultra pure vacuums. With the progression of silicon based semi-conductor devices, the need for ultra high vacuum levels have increased to eliminate the possibility of any type of substrate contamination. For this reason, the most advanced ultra high vacuum chambers and pumps are used in space research and semi-conductor manufacturing. For semi-conductor manufacturing applications, impurities of even several molecules can destroy a substrated.

 

High Vacuum
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