High Vacuum

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HIGH PERFORMANCE 3CFM SINGLE STAGE Rotary Vane Vacuum Pump Refrigerant
$65.52
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VARIAN 6 WAY HIGH VACUUM FITTING 2 3 4 FLANGE NICE
$299.99
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New High Quality Practical Vacuum Suction Pump to StoreClothing Other Articles
$2.99
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KURT J LESKER HIGH VACUUM CENTERING RINGS QF160 SAVR LF160 600 SR V
$40.00
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MDC HIGH VACUUM CERTERING SEAL 813002
$30.00
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AE HIGH VACUUM RINGS FLANGE 1 25MW1 562 016
$30.00
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VAT F12 60366 582 High Vacuum Gate Valve from Research DVD Coater E BEAM Coater
$599.00
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Nor Cal Lesker inline high vacuum valve CF flanges
$170.00
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C High Vacuum KF Fittings from Mass Spectometer
$69.00
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GNB Corporation High Vacuum Gate Valve G8PSOP Inner Diameter 8 Outter 13 1 2
$1,299.00
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SMC NZM071HT K5LZ E55L VACUUM GENERATOR HIGH PRESS DC NEW
$178.00
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High Vacuum Chamber Vortexor from a Research DVD Coater E BEAM Coater
$1,299.00
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High Vacuum SS Flange 5 OD
$70.00
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High Vacuum SS Blank Flange 5 OD
$70.00
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Kashiyama Dry High Vacuum Pump SDL30K JM016A
$8,000.00
quality
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US General vacuum pump 3 CFM TWO STAGE HIGH PERFORMANCE 1 3 HP 120V 25 Micron
$109.00
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 2CFM Check Valve HVAC Tool
$99.97
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CTI Cryogenics 8033295 High Vacuum Pump Cryo Torr 8F Cryopump Used
$2,003.14
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Agilent HP E1406A Command Module Multimeter Cards E1401B High Power Mainframe
$750.00
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Edwards High Vacuum UHV Thermocouple 30ft Cable D36832010 Conflat MDC MKS New
$89.00
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 115CFM 8HP HVAC Bagging
$497.97
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RTI Technologies 1 Qt Premium High Vacuum Pump Oil 217020
$26.24
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Speedivac Edwards High Vacuum Pump Model ES 200 A ES200A NR
$299.99
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New Kurt J Lesker ISO 100 Stainless Flange Adapter 100mm High Vacuum Fitting
$55.24
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32 Varian High Vacuum Diffusion Pump
$6,199.97
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Eureka C2094 Heavy Duty Commercial High Filtration Upright Vacuum Cleaner
$100.00
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Ni High Temperature Diffusion Pump Heater Wire 10 22A
$17.50
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Leybold Heraeus Turbovac 50 DN63CF 55l s Turbo Molecular High Vacuum Pump 85402
$799.99
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Cajon Company SS 4BHR 12 High Performance Critical Vacuum Pressure Hose New
$9.99
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ROBINAIR 15600 COOL TECH 6 CFM HIGH PERFORMANCE VACUUM PUMP HVAC REFRIGERATION
$51.00
quality
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2Stage High Performance Rotary Deep Vacuum Pump 6CFM+Built in Check Valve+HVAC R
$199.99
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HIGH QUALITY BLUE 1STAGE 3CFM Rotary Vane Deep Vacuum Pump HVAC AC Air Tool
$174.31
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump 1000L s Cryopump 6 ANSI CT 7
$549.99
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Varian VacIon 921 0015 High Voltage Ion Vacuum Pump Control Unit Controller 1
$199.99
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Leybold Heraeus RGD 210 KF25 1OD Pneumatic High Vacuum Valve Cylinder Assembly
$199.99
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MKS High Vacuum Gauge Controller Model 937A Pirani HPS 120V Varian Pheiffer
$945.00
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Huntington 90 Degree High Vacuum Research Chamber 8Flange Elbow MDC Varian CFF
$225.00
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High Performance 3CFM Rotary Vane Deep Vacuum Pump HVAC AC
$174.07
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Varian High Vacuum Research Chamber 8CFF Air Actuated Gate Valve MDC HVA
$1,175.00
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WORKSHOP Wet Dry Vacs 16 Gal 65 Peak HP High Capacity Shop Vacuum Vac WS1600VA
$99.99
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High Vacuum Research Chamber Special Made 11 Flange Reducer MDV Varian
$85.00
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Edwards 2 Two Stage High Vacuum Pump Model E2M2
$550.00
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SMC XLA160 30 1 M9BA Pneumatic High Vacuum Angle Valve AMAT 0090 01100 Working
$1,008.13
quality
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PFEIFFER BALZERS TPH 060 TURBO MOLECULAR HIGH VACUUM PUMP
$850.00
quality
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6 ROLLS TACKY WEATHER PROOFING VACUUM BAG SEALING HIGH TEMPERATURE SEALANT TAPE
$22.99
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RTI Technologies 1 Qt Premium High Vacuum Pump Oil 217020
$26.24
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High Vacuum SS Flexible Bellows 50mm Aperture
$19.95
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HVA HIGH VACUUM APPARATUS 4 ANSI PNEUMATIC GATE VALVE
$699.99
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Well working Welch Vacuum Pump 7 DirecTorr 8920A DIRECT DRIVE HIGH VACUUM 3 4HP
$350.00
quality
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SMC XLA 16A X585 High Vacuum Valve Brooks 150758 Lot of 2 New
$410.13
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VC132 Vacuum Cups 135 Diameter 48 high 25 inlet
$2.99
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Edwards 2 Two Stage High Pump Vacuum Model E2M2 GE 5KC37NN470X
$199.00
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Welch Duo Seal Two Stage High Vacuum Pump Model 1397 R Industrial
$2,750.00
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NEW HVA 122 0060 16mm Pneumatic Gate Valve Stainless Steel High Vacuum Apparatus
$169.99
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VC36D Vacuum Cup Label Placement 1 Dia 34 High
$2.99
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VC36F Vacuum Cup Label Placement 1 Dia 39 High
$2.99
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Apiezon N Cryogenic High Vacuum Grease
$99.99
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ISO63 ISO 63 Turbo Molecular High Vacuum Pump Flange KF 16 90deg flange
$69.00
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Varian VacIon 921 0015 High Voltage Vacuum Ion Pump Control Unit Controller 2
$199.99
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HVA 6ID 11OD Flange Stainless Steel Gate Valve Housing High Vacuum Apparatus
$137.99
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Genesis ICP 200 623 4202 Quick Regen Ultra High Fixed Sputter Cryopump CF Flange
$1,499.99
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VAT 24340 QA11 0002 0043 High Vacuum Angled Valve New Sealed
$750.00
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VAT 24340 QA11 0002 0047 High Vacuum Angled Valve New Sealed
$750.00
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Alcatel ATH 30 C Turbomolecular Turbo Drag High Vacuum Turbo Pump 31 l s
$499.99
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SMC Pneumatic ZSE40 C4 62L High Precision Digital Adjustable Vacuum Switch
$49.99
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MKS INSTRUMENTS 1 TORR BARATRON HIGH VACUUM SWITCH
$399.00
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MKS High Vacuum 85 Long Feedthrough Flange KF40
$59.00
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VAT High Vacuum ASA Gate Valve 1375 OD
$2,400.00
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High Vacuum KF16 to 32mm Fitting
$49.00
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10 Long High Vacuum SS KF25 Bellows Flex Pipe
$49.00
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Original Gast 1532 High Volume Sampling Pump Kit
$420.00
quality
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5 Long High Vacuum Bellows Flex Pipe KF40
$49.00
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Lot of 2 Huntington High Vacuum CF Conflat Flanges 45 OD
$69.00
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High Vacuum KF40 Right Angle Fitting
$79.00
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LEYBOLD HIGH VACUUM SOLENOID 29823
$128.99
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High Vacuum Sieve Trap
$99.00
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Nor Cal High Vacuum KF40 Sealed Coaxial Metal Sieve Trap CT 4 1502 NWB
$99.00
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High Vacuum Flange ISO 100 to 34mm Thread
$59.00
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High Vacuum Flange ISO 100
$59.00
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7 Piece Lot of High Vacuum KF16 Fittings
$119.00
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6 Piece Lot of High Vacuum KF40 Fittings
$149.00
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High Vacuum Reducer Flange 45 CF to KF40
$79.00
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Ultek High Vacuum CF Right Angle Valve
$99.00
quality
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High Vacuum Research Chamber 3 way Huntington Varian
$39.99
quality
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HUNTINGTON VARIAN HIGH VACUUM 9 OD PUMP GRANVILLE MDS CVC
$49.99
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Gast 1532 High Volume Sampling Test Pump Kit
$500.00
quality
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Vacumaster High Performance Vacuum Pump 15600
$65.00
quality
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Aerzen High Vacuum Blower AMUSA GMB 1715 HV
$15,200.00
quality

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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