High Vacuum

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275 CF High Vacuum Electrical Feedthrough Flange 442045
$199.00
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Varian 275 CF High Vacuum Thermocouple Type J Feedthrough Flange
$199.00
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 12CFM 1HP HVAC Field Tool
$447.77
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NEW 6 ISO 100 ISO100 HIGH VACUUM FLEXIBLE BELLOWS HOSE FITTING S19 3 2F
$249.99
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NEW MDC BLANK HIGH VACUUM LF FLANGE 812008 S19 3 4E
$22.99
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NEW SMC ZSE30 T1 65 L HIGH PRESSURE VACUUM SWITCH S13 1 155B
$24.99
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Dow Corning high vacuum grease
$14.00
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275 CF High Vacuum Conical Rotary Feedthrough Flange
$399.00
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NEW VAT 26524 KA11 0001 0448 Inline Pneumatic High Vacuum Valve
$40.00
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Lot of 2 High Vacuum KF Fittings
$49.00
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VAT 8 ASA High Vacuum Gate Valve
$999.00
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EL91 Edwards High Vacuum SpeediVac Butterfly Valve QSB6 Quarter Swing
$300.00
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MKS Instruments 151 0063P High Vacuum Manual Valve New
$376.99
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16 SS High Vacuum ISO 80 Pipe
$99.00
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MKS HPS High Vacuum Research Chamber KF50 Full Nipple Flange Varian
$45.00
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20 Long SS KF16 High Vacuum Bellows Flex Pipe Hose
$49.00
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K293 Welch Duo Seal Vacuum Pump 1397 Two Stage High
$800.00
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Alcatel 2063 Rotary Vane High Vacuum Pump
$3,300.00
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PFEIFFER BALZERS TPH 060 TURBO MOLECULAR HIGH VACUUM PUMP
$735.00
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MDC HIGH VACUUM COMPRESSION PORT FEEDTHROUGH STRAIGHT TUBE VACUUM FITTING
$35.00
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MDC High Vacuum Research Chamber Bellows 275 Conflat Flange Varian Pfeiffer
$125.00
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High Vacuum Stand with TPH 50 Pfeiffer Balzers Turbo Pump TCP 040 power supply
$1,930.00
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High Vacuum Apparatus HVA 163 0073 2 Valve
$69.99
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This is a High Vacuum Research Chamber 6 Way Cross MDC Varian
$80.00
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump E7B4B3 7 224
$399.99
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LEYBOLD TURBOVAC 360 MOLECULAR HIGH VACUUM PUMP LEYBOLD HERAEUS LH
$895.00
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NEW 275 CF Conflat Flange High Vacuum Research Chamber Feedthrough Stainless
$49.99
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump 1400 1600RPM
$374.99
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Varian High Vacuum Bakeout Control
$350.00
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Leybold Trivac D25ET1 21111147 Dual Stage Rotary Vane High Vacuum Pump D25E
$349.99
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Key High Right Angle Valve SA 100 K N
$80.00
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New Sealed HIS High Vacuum Tubing hose Flexible Bellows KF40
$75.00
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Leybold Heraeus Turbovac 150 Turbo Molecular High Vacuum Pump
$700.00
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HIGH VACUUM ISOLATION CHAMBER VALVE w KURODA SS 242H SOLENOID VALVE
$350.00
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SMC XLA 100DL X68 High Vacuum Valve
$1,200.00
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SMC XYA 40 X1251 High Vacuum Valve
$499.00
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MKS HPS Custom 22 Stainless Steel 4 OD Lab High Flow Vacuum Tube +Flange Cover
$84.99
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Varian VacIon 921 1111 High Voltage Ion Vacuum Pump Controller Unit PARTS
$62.99
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Varian DS 602 949 9335 1460 1740RPM 1 PH Dual Stage Rotary Vane High Vacuum Pump
$1,299.99
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Varian High Vacuum Research Chamber 4 Flange Special Huntington MDC
$115.00
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High Vacuum Research Chamber Inline Valve KF40 Shut Off
$400.00
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High Vacuum Research Chamber ISO 100K ISO 63F Adapter Flange K25 Varian UHV
$250.00
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Key Valve Tech High Vacuum Research Chamber Inline Valve with KF40 KF25
$355.00
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MDC KIV 150 P High Vacuum Research Chamber InLine Valve KF40 Shut Off
$455.00
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MDC KIV 200P High Vacuum Research Chamber InLine Valve KF50 Shut Off
$575.00
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MKS High Vacuum Research Chamber Inline Valve KF40 Shut Off
$400.00
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NorCal High Vacuum Research Chamber 90 Degree Angel Valve KF40 Shut Off
$350.00
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Varian MDC Ultra High Vacuum 275CF ConFlat Flange SS 4 Way Cross Tube Fitting
$65.99
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Edwards High Vacuum UHV Thermocouple 30ft Cable D36832010 Conflat MDC MKS New
$89.00
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High Vacuum Research Chamber 8ASA Flange Varian Pfeiffer MDC 135OD
$450.00
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Pfeiffer Balzers TPH 270 Turbo Molecular High Vacuum Pump Includes Spare parts
$450.00
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 2
$399.99
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Hobman Laboratories High Vacuum CF Manual Gate Valve
$249.00
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VAT 26524 KA11 0001 0447 Right Angle Pneumatic High Vacuum Valve
$139.99
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FABRI Valve High Vacuum Research Chamber 8 ASA Pneumatic Gate Valve Varian MDC
$895.00
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High Vacuum Pressure Relief Vent
$99.00
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Key SL 150 High Vacuum Valve
$100.00
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7 High Vacuum ASA Feedthrough Flange B60395 50 105396E
$149.00
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High Vacuum Stainless Steel KF40 Right Angle Elbow Pipe
$129.00
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20 High Vacuum Stainless Steel KF40 KF16 Straight Pipe w Port
$129.00
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Varian High Vacuum Valve and Gauge Assembly 2
$249.00
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SMC ZSE40 T1 62L High Precision Digital Vacuum Switch 10 to 101kPa 1 8 NPT
$40.00
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JOHNSON CONTROLS P170MA 1 ALL RANGE 20 VACUUM 100 PSI 100 500PSI HIGH HVAC
$85.00
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Stokes 306 41 High Vacuum Blower Pump with Stand 15 GPM 3450 RPM
$2,499.95
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4 Way High Vacuum Hose Fitting
$49.00
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10 ASA High Vacuum Stainless Steel Flange
$199.00
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New Aerzen Amusa GMA 138 V 00 High Vacuum Positive Displayment 10 HP Blower
$9,500.00
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VC22 Vinyl Vacuum Cup 78 Dia 54 High 25 Inlet
$2.99
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VC10A Vinyl Vacuum Cup 104 Dia 59 High 9 32 Inlet
$2.99
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New Aerzen Amusa GMB 1715 HV 00 High Vacuum Positive Displayment 30 HP Blower
$11,900.00
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EDWARDS EDM 12 HIGH VACUUM PUMP WITH NEW MOTOR AND OIL MISTER
$230.00
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EDWARDS ED660 SPEEDIVAC BELT DRIVE ROTARY HIGH VACUUM PUMP 40CMH BALDOR M3554
$850.00
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High Vacuum Research Chamber 2ASA Bellows Flange Varian Pfeiffer MDC
$225.00
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High Vacuum Research Chamber 5 1 2 Blank MDC Varian Huntington
$65.00
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MKS MANUEL HIGH VACUUM VALVE 99G1139 VLVLPV1 25AKC MNVN
$245.00
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SMC High Vacuum Valve XLC 40 F9NA
$149.99
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Kinney High Vacuum Pump Model KC5
$550.00
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NEW MPF VACUUM A7737 1 HIGH POWER FEEDTHROUGH STAINLESS STEEL
$399.99
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Kinney High Vacuum Pump KC 8
$650.00
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3 HP STOKES MACHINE CO MICROVAC HIGH VACUUM PUMP MODEL 149E 50 CFM
$1,999.99
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High Vacuum Research Chamber Small Cryo Trap Civ Unit Nor Cal Varian MDC
$95.00
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ASA 11 000 N Elastomeric Seal High Vacuum Flange ASA ANSI 150 Lbs SS304
$235.00
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Alcatel ATH 30 C Turbomolecular Turbo Drag High Vacuum Turbo Pump 31 l s
$349.99
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Edwards E2M40 Two Stage Rotary Vane High Vacuum Pump w Leeson 2HP Motor
$1,499.99
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VARIAN ULTRA HIGH VACUUM CHAMBER
$1,000.00
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HVA 6ID 11OD Flange Stainless Steel Gate Valve Housing High Vacuum Apparatus
$76.99
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Leybold Vakuum 28100 Industrial High Vacuum Solenoid Valve w 28785 Switch
$219.99
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High Vacuum Research Chamber 3 ASA Elbow Zeyon Tricon
$250.00
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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