High Vacuum

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MDC HIGH VACUUM FLANGE ELBOW Part 250 2L 403004 Rotateable CF Flanges
$84.00
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Nor Cal High Vacuum Pump + Free Priority Shipping
$127.99
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Varian High Vacuum Research Chamber 275CF Conflat Flange NO Blank Cap MDC
$12.00
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BRONZE BRASS BODY BELLOWS SEALED HIGH VACUUM VALVE
$22.50
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NEW Stainless Steel Flexible Bellows High Vacuum 9 Length MDC Mfg
$85.00
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Savant VP 100 Dual Rotary Vane High Vacuum Pump
$399.00
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Jamesbury 4 Stainless Steel Ball Valve High Vacuum w Actuator
$985.00
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NEW Super Lube 91003 Silicone High Dielectric and Vacuum Grease
$12.94
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High Vacuum Stainless Steel ISO 160 Blank Flange
$99.00
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PE Sciex Qstar High Vacuum Flange Component
$149.00
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High Vacuum Copper Gaskets for 4 1 2 in CF Flange 3 1 4
$3.50
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High Vacuum Fitting with 2 Kip Valves U661118 02 U161122 02
$169.00
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Robinair High Vacuum Pump 15100
$119.99
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Edwards E2M18 Rotary High Vacuum Pump Two Stage Vane + Free Shipping
$399.99
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Gast Regenair Regenerative High Volume Vacuum Blower R7100A 3 10HP 425CFM NEW
$2,999.99
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1 USED THERMAL ENGINEERING 1825Z 2 STAGE HIGH VACUUM PUMP MAKE OFFER
$199.99
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Vacuum Infusion Epoxy Resin Low Vis Very Thin High Gloss High Mod 1Gal Kit
$89.99
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TRAVAINI VACUUM PUMPING SYSTEM Sihi Nash Kenny Two stage High vacuum
$12,995.00
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Vacuum Infusion Epoxy Resin Low Vis Thin High Gloss High Strength 86oz Kit
$59.99
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MDC Glass Tube 1 3 8 OD High Vacuum Flange Stainless Steel 3 1 8 Flex
$51.51
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High Vacuum Research Chamber 3 Blank Flange MD Varian Huntington Nor Cal
$35.00
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MKS HPS 2 STAGE HIGH CONDUCTANCE INLINE ROUGHING VALVE SOFT START 2 KF50 CF
$499.00
quality
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New Leister Robust High Pressure Blower G63A2
$495.00
quality
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diffusion pump veeco high vacuum equipment catalog 1959
$20.00
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EDWARDS 28 E2M28 Dual Stage Rotary Vane High Vacuum Pump
$1,499.00
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Telemark 275 CF High Vacuum Liquid Feedthrough Flange
$199.00
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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 8033290 Cyro Torr 8 High Vacuum Pump W Varian Gate Valve 951 5218
$2,500.00
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High Vacuum Stainless Steel ISO 63 ISO 100 Conical Reducer
$149.00
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Perkin Elmer Ultek High Vacuum D I Pump Magnet
$399.00
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32 Long KF25 KF40 SS High Vacuum Bellows
$149.00
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Applied Materials 33 20017 00 High Vacuum Ion Gauge
$149.00
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High Vacuum CF DN16 mini Electrical Feedthrough Flange
$199.00
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Varian Agilent Ion Gauge Tube 275 Flange Hot Cathode 2636 High Vacuum
$165.00
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Varian Hot Cathode Ion Gauge Tube 275 Flange 2636 Agilent High Vacuum Bayard
$185.00
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Kurt J Lesker KJL 5311 Thermocouple KF25 High Vacuum Gauge
$99.00
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Lot of Perkin Elmer High Vacuum Collared Bolts and Weld Nuts
$49.00
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High Vacuum Stand with TPH 50 Pfeiffer Balzers Turbo Pump TCP 040 power supply
$1,530.00
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5 High Vacuum ASA Flange SS 175 ID
$99.00
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ASA 5 000 N Elastomeric Seal High Vacuum Flange ASA ANSI 150 Lbs SS304
$85.00
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Deublin 55 503 094 High Vacuum Rotary Feedthrough Pump Union Coupling
$69.98
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump
$750.00
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24 SILVER PLATED NEW VARIAN MDC STAINLESS STEEL CONFLAT HIGH VACUUM BOLTS
$18.64
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NEW KEY HIGH VACUUM RIGHT ANGLE VALVE SA 150 K N SER 55 A 29 3598
$120.00
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Atrix 5 Gallon High Capacity Hepa Vacuum
$460.95
quality
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MKS HPS 161 0050K STAINLESS HIGH VACUUM BELLOWS VALVE
$179.19
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Nor Cal 2E ISO 100 OF ST ST KF100 90 Degree Elbow High Vacuum Fitting 6 1 4L
$155.00
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Edwards Q80 4 22 QDP80 QMB500 High Vacuum Controller Module w Power Cable 3PH
$498.00
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NEW SMC ZSE30 T1 65 L HIGH PRESSURE VACUUM SWITCH S13 1 155B
$24.99
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CTI Cryogenics On Board 8 Laboratory High Vacuum Pump Cryopump 8112825G002 PARTS
$1,119.99
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HVA High Vacuum Apparatus 21211 0609R 126S3 Stainless 6 Pneumatic Gate Valve
$535.99
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HVA High Vacuum Apparatus 21211 0609R 126 Stainless 6 Pneumatic Gate Valve
$591.99
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New Sealed HIS High Vacuum Tubing hose Flexible Bellows KF40
$75.00
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60 Single Stage High Volume HVAC Refrigeration Dual Port Deep Vacuum Pump
$209.99
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Leybold Heraeus RGD 210 KF25 1OD Pneumatic High Vacuum Valve Cylinder Assembly
$90.39
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Varian VacIon 921 0015 High Voltage Vacuum Ion Pump Control Unit Controller 2
$147.19
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Varian VacIon 921 0015 High Voltage Ion Vacuum Pump Control Unit Controller 1
$147.19
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NEW MDC BLANK HIGH VACUUM LF FLANGE 812008 S19 3 4E
$22.99
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HVA High Vacuum Apparatus 161 0103 2 Pneumatic Bellow Right Angle Valve NW25
$84.99
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump 1000L s Cryopump 6 NO GAUGE
$239.99
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Varian VHS 4 High Speed Vacuum Diffusion Pump 120 VAC New Heater Gauge Valve
$700.00
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Alcatel Annecy MDP 5010 75l s Turbo Molecular Drag Pump High Vacuum 27000RPM
$479.99
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HVA 6ID 11OD Flange Stainless Steel Gate Valve Housing High Vacuum Apparatus
$70.99
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High Vacuum Research Chamber KF50 Reducer to 3 3 8 Flange Varian Huntington
$65.00
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Genesis ICP 200 623 4202 Quick Regen Ultra High Fixed Sputter Cryopump CF Flange
$959.99
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Nilfisk Adavance GS83 017922 60 220V Industrial High Volume Vacuum Cleaner
$2,495.00
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High Vacuum Research Chamber 4 1 2 Blank Flange MDC Varian Huntington
$75.00
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High Vacuum Research Chamber 4 1 2 Blank Del Seal Flange Huntington MDC
$85.00
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High Vacuum Research Chamber NEW 4 1 2 Blank Flange MDC Varian Huntington
$85.00
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Varian High Vacuum Research Chamber 4 1 2 Flange Reducer MDC Huntington
$155.00
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Robinair 13203 1 Qt A c Premium High Vacuum Pump Oil
$6.93
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High Vacuum Copper Gaskets for 8 inch CF Flanges 6 3 4
$6.00
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Pfeiffer DCU 600 High Vacuum Turbomolecular Pump Display and Control Unit PM C01
$1,499.00
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MDC High Vacuum Research Chamber KF40 Elbow to 275 Flange Varian Huntington
$95.00
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Newton Scientific 11NS37 021 High Vacuum Sensor Gauge
$399.00
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MDC High Vacuum Reserch Chamber 5 WayCross 10 Sphere Flange Varian Huntington
$2,195.00
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VAT 10416 02 High Vacuum ISO100 Manual Gate Valve
$399.00
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Mastercool 90066 A 60 Cfm Single Stage High Performance Deep Vacuum Pump
$145.97
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Balzers Pfeiffer Turbomolecular TMU 065 Turbo Drag High Vacuum Pump
$945.00
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MDC VARIAN 10 CONFLAT HIGH VACUUM ISO 15 BELLOWS
$250.00
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APD Cryogenics High Vacuum Cryo Pump Model APD 22 P N 255259E17
$5,999.00
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44 Armored SS High Vacuum Flex Hose
$99.00
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MDC VARIAN 10 CONFLAT HIGH VACUUM ISO 12 BELLOWS
$250.00
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MDC 10 CONFLAT BELLOWS 10 ISO HIGH VACUUM CHAMBER
$250.00
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MDC High Vacuum Reserch Chamber 10 Flange Reducer Varian Huntington A
$395.00
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MDC High Vacuum Reserch Chamber 10 Blank Flange + Two 1 Ports A
$385.00
quality
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Swagelok High Vacuum Research Valves SS 2H 62 Fitting Wagelok 318 Nupro
$85.00
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825 Varian CF Conflat High Vacuum Flange
$119.00
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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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