High Vacuum

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Ceramaseal Cat 8102 High Voltage Plug In Feedthrough 4 Pin New Old Stock
$499.99
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Leybold Trivac D25ET1 21111147 Dual Stage Rotary Vane High Vacuum Pump D25E
$349.99
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump E7B4B3 7 224
$399.99
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 12CFM 1HP HVAC Field Tool
$447.77
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Brand new SMC XLA 80D A93A HIGH VACUUM VALVE
$150.00
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2 HIGH VACUUM PUMP RESEARCH CHAMBER VALVE
$80.00
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Varian High Vacuum Research Chamber 3 Way Rotatable 275 Flange MDC Huntington
$65.00
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Varian High Vacuum Research Chamber 2 Way Flange 275CFF O Ring Huntington MDC
$65.00
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MDC High Vacuum Research Chamber 2 Way Rotatable 275CFF Varian Huntington
$65.00
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Huntington High Vacuum Research Chamber 2 Way Rotatable 275CFF MDC Varian
$65.00
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EDWARDS HIGH VACUUM PEPELINE VALVE PV25EK
$45.00
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ATRIX COMMERCIAL HIGH CAPACITY HEPA IPM VACUUM 5 GALLON FILTER ATIHCIPM
$479.95
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6 Long MKS High Vacuum Bellows Flex Pipe KF50
$75.00
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Leybold High Vacuum Inline Billows KF40 Valve Penumatic Varian Pheiffer
$200.00
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Alcatel 2460 Comptech Sputter Tool High Vacuum Chamber
$3,350.00
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High Vacuum SS 45 Degree Elbow ISO 80
$99.00
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High Vacuum Straight Pipe with 45 Degree End ISO 80
$99.00
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Nor Cal High Vacuum Pneumatic Right Angle Poppet Valve ISO 80
$119.00
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3 Long SS High Vacuum Bellows Flex Pipe ISO 80
$99.00
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High Vacuum 12ASA Flange 90 Degree Bowed Elbow Pipe Tricon Zeyon
$395.00
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NILFISK VACUUM CLEANER MODEL GS83 INDUSTRIAL 3 MOTORS HIGH VOLUME HEAVY DUTY
$999.89
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High Vacuum Research Chamber that is a 8CFF Flange 5 3 4Deep NC Huntington
$245.00
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Nor Cal High Vacuum Pneumatic Right Angle Poppet Valve ASA 525 OD
$119.00
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Bartell DPR 2000 Series 80 High Volume Dry Dust Debris Vacuum Collector
$179.99
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High Vacuum 8ASA Flang Bellows 90 Degree Elbow Pipe Tricon Zeyon
$395.00
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Varian High Vacuum CF Conflat Feedthrough Flange 6 OD
$149.00
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SMC High Vacuum Angle Valve XLA 16 X555 4 7 MPa Press 106 PA atm 5 l s
$74.99
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Welch Vacuum Pump 7 DirecTorr 8920A DIRECT DRIVE HIGH VACUUM LARGE
$1,099.99
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19 Long High Vacuum SS Bellows Flex Pipe ISO 63
$79.00
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7 Long High Vacuum ASA Straight Pipe 525 OD
$89.00
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High Vacuum ASA 90 Degree Elbow w Port 525 OD 1
$89.00
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High Vacuum ASA 90 Degree Elbow w Port 525 OD 2
$89.00
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NEW 10 3 4 OD HIGH VACUUM COPPER GASKET 10 ID
$15.00
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High Vacuum Manual Flow Control Damper Butterfly Valve Aluminum Construction
$49.99
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NEW VAT 26524 KA11 0001 0448 Inline Pneumatic High Vacuum Valve
$40.00
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NorCal Products High Vacuum Sanitary Flange Centering Rings and end caps
$100.00
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SMC XLD 25 F9NA HIGH VACUUM VALVE W TWO D F9N SWITCHES
$399.99
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MDC High Vacuum Gate Valve Model GV 8000V ASAP SP
$1,800.00
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High Vacuum Apparatus Mfg Inc 6 Inch Pneumatic Gate Valve
$900.00
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Mitsubishi VP SW A910 Scroll High Vacuum pump Tested with 14 day DOA warranty
$1,950.00
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Two High Vacuum Chambers with Heat Exchangers
$99.00
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AN High Vacuum Research Chamber 8CFF Flange Reducer to 275 CFFFlange Nor Cal
$225.00
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Black 18 CFM 1 Stage AC Refrigerant Air Conditioner Vacuum Pump High Efficiency
$75.55
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Varian High Vacuum Research Chamber 6ASA Reducer 10 Flange MDC Huntington
$395.00
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MDC High Vacuum Research Chamber 8 CFF Blank Flange Varian Huntington Nor Cal
$85.00
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Edwards PV25MK high pipeline vacuum valve 7bar right angle stainless NW25 clamp
$100.00
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HiTek Power 0090 90860 High Voltage Power Supply A1007960 Untested
$1,005.12
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High Vacuum Research Chamber 8 CFF Blank Flange Huntington MDC Nor Cal Varian
$80.00
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High Vacuum Research Chamber 6ASA Elbow Varian Pfeiffer
$195.00
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High Vacuum Research Chamber 8 Reducer Flange 3 3 16ID Huntington Varian MDC
$95.00
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Torr LNB62 LNB 62 CryoTrap High Vacuum Liquid Nitrogen Cold Trap
$539.00
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 1
$399.99
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2 Stage High Performance Rotary Vane Deep 7 CFM Vacuum Pump
$329.00
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Leybold Heraeus Turbovac 50 DN63CF 55l s Turbo Molecular High Vacuum Pump 85402
$699.99
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Alcatel Annecy MDP 5010 75l s Turbo Molecular Drag Pump High Vacuum 27000RPM
$799.99
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NUTONE ELECTRAVALUE 77 5595 V3W HIGH VOLTAGE WALL OUTLET WHITE CENTRAL VACUUM
$15.25
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Genesis ICP 200 623 4202 Quick Regen Ultra High Fixed Sputter Cryopump CF Flange
$1,199.99
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SMC ZSE40 C4 22L High Precision Digital Adjustable Vacuum Switch
$65.99
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Varian VacIon 921 0015 High Voltage Vacuum Ion Pump Control Unit Controller 2
$199.99
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NUTONE ELECTRAVALUE 77 5595 V3A HIGH VOLTAGE WALL OUTLET ALMOND CENTRAL VACUUM
$15.25
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NEW HVA 122 0060 16mm Pneumatic Gate Valve Stainless Steel High Vacuum Apparatus
$103.99
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump 1000L s Cryopump 6 NO GAUGE
$299.99
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Varian VacIon 921 0015 High Voltage Ion Vacuum Pump Control Unit Controller 1
$199.99
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AN Corporation 1539 S N high vacuum pneumatic valve
$125.00
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425 Long MKS High Vacuum Straight Pipe w 2 Ports ISO 80
$89.00
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High Vacuum ASA 90 Degree Right Angle 6 to 525 OD
$99.00
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Copper High Vacuum ASA Hose Flange 6 OD
$99.00
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MDS Sciex Qstar Mass Spectrometer High Vacuum Flange Component
$169.00
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MDC High Vacuum Chamber 125 CFF Flange Gate Valve Penumatic Varian Edwards
$475.00
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MDS Sciex Qstar Mass Spectrometer High Vacuum Flange Component
$129.00
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High Vacuum ASA Bellows Flex Pipe w Port 525 OD
$99.00
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HVA HIGH VACUUM APPARATUS 11212 9251 6 PNEUMATIC VALVE
$200.00
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175 Long High Vacuum Straight Pipe w 3 Ports KF70 mm
$99.00
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MKS High Vacuum KF50 90 Degree Elbow w Port
$79.00
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NEW KURT J LESKER FEEDTHROUGH STAINLESS STEEL MINIATURE HIGH VOLTAGE NPT
$66.99
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VAT High Vacuum ASA Gate Valve 1375 OD
$2,299.00
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Varian 3125 Vacuum Coating System High Voltage Electron Beam E Gun
$1,200.00
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Edwards High Vacuum Pump EDM20A Motor Franklin Electric 3 4 HP
$349.00
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NEW 6 ISO 100 ISO100 HIGH VACUUM FLEXIBLE BELLOWS HOSE FITTING S19 3 2F
$124.99
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Edwards Speedivac High Vacuum Pump ID200 ID 200 With 220v Motor
$400.00
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New Varian High Vacuum Back to Air Valve Model 951 5097 with ConFlat Flange
$229.00
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Leybold Trivac D16B Duel Stage Rotary Vane High Vacuum Pump
$999.00
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7 Ultra High Vacuum Butterfly Valve 12 OD Flange Manual Very Good Cond ++
$429.00
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High Vacuum 45 CF Conflat Flange Varian Rotatable Blank
$15.00
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Dayton High Efficiency Motor 5hp 3 Phase 37Kw 3450 rpm LTDH23TCE Pump
$332.49
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NEW KURT J LESKER MHT QF C06 FLEXIBLE BELLOW SST KF 40 NW40 HIGH VACUUM 6
$127.99
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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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SMC Pneumatic ZSE40 C4 22L High Precision Digital Adjustable Vacuum Switch
$89.99
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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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