High Vacuum

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VARIAN 6 WAY HIGH VACUUM FITTING 2 3 4 FLANGE NICE
$150.00
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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
quality
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High Vacuum Research Chamber 8CFF Flange 6ASA Reducer MDC Varian
$425.00
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High Vacuum Chamber Vortexor from a Research DVD Coater E BEAM Coater
$1,299.00
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Balzers Vacuum Control Unit EVM 052A with high voltage up to 2500V 30 mA L568
$290.00
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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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Robinair 15600 CoolTech High Performance Vacuum Pump 6 CFM
$60.00
quality
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CTI Cryogenics 8033295 High Vacuum Pump Cryo Torr 8F Cryopump Used
$2,003.14
quality
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MDC Stainless Steel High Vacuum Chamber Flanges Valve 41 Length x 6 Diameter
$999.99
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EDWARDS AGD 112IM D39562000 HIGH VACUUM ACTIVE GAUGE DISPLAY EXCELLENT CONDITION
$300.00
quality
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MDC GV 1500V P High Vacuum Chamber 275 CFF Flange Gate Valve Varian Edwards
$425.00
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NEW KURT J LESKER MHT QF C18 KF 40 NW40 FLEXIBLE BELLOW 18 LENGTH HIGH VACUUM
$164.99
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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 B3
$26.24
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COOLTECH SPX ROBINAIR HIGH PERFORMANCE VACUUM PUMP 15600 6 CFM 1 2 MOTOR HP
$60.00
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New Kurt J Lesker ISO 100 Stainless Flange Adapter 100mm High Vacuum Fitting
$64.99
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HVA High Vacuum Apparatus Stainless Steel 10 Gate Valve 11211 1012R
$350.00
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Pump High Vacuum
$2,728.69
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Pump High Vacuum 1 HP
$7,117.84
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Pump High Vacuum 1 HP
$5,535.20
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Pump High Vacuum
$3,988.94
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump 1000L s Cryopump 6 NO GAUGE
$399.99
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32 Varian High Vacuum Diffusion Pump
$6,199.97
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Leybold Heraeus Turbovac 50 DN63CF 55l s Turbo Molecular High Vacuum Pump 85402
$799.99
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Ni High Temperature Diffusion Pump Heater Wire 10 22A
$17.50
quality
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Cajon Company SS 4BHR 12 High Performance Critical Vacuum Pressure Hose New
$9.99
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High Vacuum Pump Extended life Oil Free
$2,000.00
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MDC High Vacuum Research Chamber 6 Way 45CFF Flange Varian Huntington
$365.00
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Alcatel ATH 30 C Turbomolecular Turbo Drag High Vacuum Turbo Pump 31 l s
$399.99
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High Vacuum Research Chamber 1625 ASA Blank Varian MDC
$295.00
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HIGH QUALITY BLUE 1STAGE 3CFM Rotary Vane Deep Vacuum Pump HVAC AC Air Tool
$174.31
quality
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Edwards E2M40 Two Stage Rotary Vane High Vacuum Pump w Leeson 2HP Motor
$1,999.99
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Robinair model 15100 High vacuum pump with Tee kit VERY NICE 12CFM USA MADE
$129.95
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MKS High Vacuum Gauge Controller Model 937A Pirani HPS 120V Varian Pheiffer
$945.00
quality
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Alcatel Annecy MDP 5010 75l s Turbo Molecular Drag Pump High Vacuum 27000RPM
$899.99
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High Performance 3CFM Rotary Vane Deep Vacuum Pump HVAC AC
$174.07
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Marvac Scientific Direct Drive High Vacuum Pump
$80.00
quality
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Varian High Vacuum Research Chamber 8CFF Air Actuated Gate Valve MDC HVA
$1,175.00
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Dow Corning high vacuum grease
$14.00
quality
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WORKSHOP Wet Dry Vacs 16 Gal 65 Peak HP High Capacity Shop Vacuum Vac WS1600VA
$99.99
quality
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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
quality
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SMC XLA160 30 1 M9BA Pneumatic High Vacuum Angle Valve AMAT 0090 01100 Working
$1,008.13
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6 ROLLS TACKY WEATHER PROOFING VACUUM BAG SEALING HIGH TEMPERATURE SEALANT TAPE
$22.99
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SMC Pneumatic ZSE40 C4 62L High Precision Digital Adjustable Vacuum Switch
$34.99
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RTI Technologies 1 Qt Premium High Vacuum Pump Oil 217020
$26.24
quality
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HVA HIGH VACUUM APPARATUS 4 ANSI PNEUMATIC GATE VALVE
$699.99
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Stokes 306 41 High Vacuum Blower Pump with Stand 15 GPM 3450 RPM
$3,495.00
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sbphoto50 Apiezon N Cryogenic High Vacuum Grease
$85.00
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Well working Welch Vacuum Pump 7 DirecTorr 8920A DIRECT DRIVE HIGH VACUUM 3 4HP
$350.00
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Vacuum Research Chamber Manual Gate Valve SS Innotect Group SVB 62M 6 High
$505.26
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High Vacuum Research Chamber 8 Blank Flange USED MDC Huntington
$125.00
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VC132 Vacuum Cups 135 Diameter 48 high 25 inlet
$2.99
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Welch Duo Seal Two Stage High Vacuum Pump Model 1397 R Industrial
$2,750.00
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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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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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NEW SMC ZSE30 T1 65 L HIGH PRESSURE VACUUM SWITCH S13 1 155B
$64.99
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NEW HVA 122 0060 16mm Pneumatic Gate Valve Stainless Steel High Vacuum Apparatus
$144.99
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Varian VacIon 921 0015 High Voltage Vacuum Ion Pump Control Unit Controller 2
$199.99
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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
$183.99
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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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Edwards High Vacuum UHV Thermocouple 30ft Cable D36832010 Conflat MDC MKS New
$89.00
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Edwards High Vacuum E04 diffusion pump NEW old stock 880W 175 cc 115V Perfect
$275.00
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8 Ultra High Vacuum Gate Valve Conflat Flanges Manual Op Very Good Cond ++
$499.00
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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
quality
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High Vacuum KF16 to 32mm Fitting
$49.00
quality
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Air Contitioning Deep Vacuum Pump HVAC High Performance
$187.77
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5 Long High Vacuum Bellows Flex Pipe KF40
$49.00
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High Vacuum KF40 Right Angle Fitting
$79.00
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 2CFM Check Valve HVAC Tool
$99.97
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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
$59.00
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7 Piece Lot of High Vacuum KF16 Fittings
$119.00
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Ultek High Vacuum CF Right Angle Valve
$99.00
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Gast 1532 High Volume Sampling Test Pump Kit
$349.99
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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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