High Vacuum

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18CFM Single Stage Rotary Vane Vacuum Pump High Efficiency Low Noise For Airs
$71.25
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New 18CFM Single Stage Rotary Vane Vacuum Pump High Efficiency Low Noise AIR
$69.99
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18CFM Single Stage Rotary Vane Vacuum Pump High Efficiency Low Noise Air Hvac
$67.99
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Tuthill Vacuum Systems Kinney High Vacuum Pump 75 HP Motor 107 CFM KTC112
$3,495.00
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Lot of 5 High Vacuum Pipe Elbow OD 2 ID 125
$150.00
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Edwards Speedivac High Vacuum Pump ED 300
$763.13
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Kinney KC8 Two Stage Rotary Piston High Vacuum Pump with Leeson 1 2 Motor KC 8
$1,295.00
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High Vacuum SS Tee Reducer Leybold Valve and 5 way Flange
$299.00
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6 Piece Lot of Aluminum KF High Vacuum Fittings
$149.00
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2 High Vacuum SS KF Straight Pipe
$149.00
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MDC MFG CF Conical High Vacuum Chamber w Viewport
$299.00
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 12CFM 1HP HVAC Field Tool
$447.77
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High Vacuum SS Reducer Flange 5 to 375
$99.00
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Edwards High Vacuum LCPV25EKA Pneumatic Right Angle Aluminum Valve KF25 Flanges
$84.99
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High Vacuum SS Flange 4 ID
$99.00
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6 Piece Lot of SS High Vacuum Fittings
$125.00
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Edwards Aluminum C41733000 Inline High Vacuum Valve KF16 Flanges
$84.99
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KINNEY High Vacuum Pumo Model KTC 60B KTC 60B Nice Industrial
$2,750.00
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Leybold Heraeus SS KF High Vacuum 4 Way Fitting
$60.00
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Leybold Heraeus SS KF High Vacuum Tee
$60.00
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VAT High Vacuum Gate Valve F20 98215 2 8 butterfly Valve
$999.00
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14 SS High Vacuum Straight Pipe
$99.00
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Helix CTI Cryogenics 8107819G001 High Vacuum Pump Cryo Torr 8F Cryopump UHV
$1,530.36
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VAT 6 ASA Pneumatic High Vacuum Gate Valve F64 113333 1
$999.00
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VAT 6 ASA Pneumatic High Vacuum Gate Valve F14 112128 4
$999.00
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VAT High Vacuum Gate Valve F02 112188 4
$599.00
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3 High Vacuum SS KF40 Bellows Flex Pipe Vacuum Hose
$79.00
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VAT 4 ASA High Vacuum Gate Valve F10 60412 219
$599.00
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2625 Lot of 4 HPS MKS Flexible High Vacuum Hoses
$220.00
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GP Ultra High Vacuum Research Chamber Shut Off Manuel
$145.00
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4 Approximate High Vacuum SS KF40 Bellows Flex Pipe Hose
$79.00
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High Vacuum Research Chamber 4 Way Cross MDC Varian
$75.00
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Cooltech SPX Robinair 15600 High Performance Vacuum Pump 6 CFM CLEAN
$162.50
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AN Corp High Vacuum 6 Zero Length Flange Reducer 600x212 100 0 T1 NEW
$110.00
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NW40 to NW25 High Vacuum Stainless Steel Adapter Flange 3 Long
$39.95
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CTI CRYOGENICS CRYO TORR 100 HIGH VACUUM PUMP
$999.99
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VARIAN 1251 1 1 8 FORGED BRASS BODY BRONZE BELLOWS SEALED HIGH VACUUM VALVE
$379.99
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HVA High Vacuum Apparatus Stainless Steel 10 Gate Valve 11211 1012R
$899.00
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Varian MDC Ultra High Vacuum 275CF ConFlat Flange SS 4 Way Cross Tube Fitting
$84.99
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HIGH VACUUM GAUGE TUBE
$25.00
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AN Corp High Vacuum 45 Zero Length Flange Reducer 462x338 200 0 T1 NEW
$95.00
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Pair of Varian Model 951 5027 Bakeable Ultra High Vacuum UHV Valves Pristine+
$569.00
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 2CFM Check Valve HVAC Tool
$99.97
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New SLOAN V 651 A Vacuum Breaker Repair Kit High Back Pressure
$15.00
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 2
$399.99
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 1
$399.99
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 3
$399.99
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Edwards E2M40 Two Stage Rotary Vane High Vacuum Pump w Leeson 2HP Motor
$1,999.99
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HVA 6ID 11OD Flange Stainless Steel Gate Valve Housing High Vacuum Apparatus
$126.99
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8 OD MDC Del Seal CF Ultra High Vacuum Multiport Flange UHV +65 Varian Insert
$141.96
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NEW 275 CF Conflat Flange High Vacuum Research Chamber Feedthrough Stainless
$49.99
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Varian VacIon 921 0015 High Voltage Vacuum Ion Pump Control Unit Controller 2
$199.99
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump E7B4B3 7 224
$399.99
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Leybold Heraeus RGD 210 KF25 1OD Pneumatic High Vacuum Valve Cylinder Assembly
$199.99
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High Vacuum Research 6CF Zero Length Reducer Flange Nor Cal MDC huntingtion
$75.00
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Huntington High Vacuum Research Chamber 125 CFF Flanges NEW Varian MDC
$55.00
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump 1400 1600RPM
$374.99
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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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Leybold Trivac D25ET1 21111147 Dual Stage Rotary Vane High Vacuum Pump D25E
$349.99
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High Vacuum Pump Head Vacuum Pump
$49.99
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NEW HVA 122 0060 16mm Pneumatic Gate Valve Stainless Steel High Vacuum Apparatus
$156.99
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Edwards E2M 1 Portable Dual Stage Rotary Vane High Vacuum Pump 2680 3200RPM 1PH
$199.99
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Cameron High Vacuum Research Chamber 275 Flange Huntington Varian MDC
$695.00
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THERMAL 2 STAGE HIGH VACUUM PUMP MODEL R 21 CAT 1817 1 3 15 CFM HVAC
$139.99
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Leybold High Vacuum Valves 29822 29820 and Other Fittings
$299.00
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Leybold High Vacuum Valve 29822 and Other Fittings
$249.00
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Vacuum Research Co CF High Vacuum Manual Gate Valve 65 OD
$99.00
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Lot of 2 Stainless Steel KF40 Flange High Vacuum Bellows Tubing 4 Length
$33.99
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Osaka High Vacuum Turbo Pump Controller Model TD370 400 Seiko Seiki Varian
$1,295.00
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High Vacuum Research Chamber 275 CFF Conflat Feed Through Flange Varian MDC
$95.00
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VAT 95238 PAGQ ADH2 High Pressure Combo Gate Valve 434259 As Is
$601.14
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HIGH VACUUM RESEARCH CHAMBER CONFLAT FLANGE Nipple Reducer T Angle MDC
$125.00
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Perkin Elmer High Vacuum Research Chamber 2 Way Conflat MDC Varian
$75.00
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SURTEC POLIVAC HIGH SPEED BUFFER WITH ACTIVE VACUUM SYSTEM
$300.00
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ROBINAIR MODEL 15141 HIGH VACUUM PUMP
$800.00
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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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HVA High Vacuum Apparatus Model 22242 0213M Steel Valve R
$2,865.99
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Ni High Temperature Diffusion Pump Heater Wire 12 15A
$15.00
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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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Alcatel Annecy MDP 5010 75l s Turbo Molecular Drag Pump High Vacuum 27000RPM
$899.99
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Alcatel ATH 30 C Turbomolecular Turbo Drag High Vacuum Turbo Pump 31 l s
$399.99
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Edwards high vacuum 600AB 10 TORR
$250.00
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VARIAN HIGH VACUUM STAINLESS STEEL 2 3 4 CONFLAT BLANKS 100 GUARANTEED OR YOUR
$55.00
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HIGH PERFORMANCE 3CFM SINGLE STAGE Rotary Vane Vacuum Pump Refrigerant
$53.00
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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
$3.19
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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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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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