High Vacuum

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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
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High Vacuum KF16 to 32mm Fitting
$49.00
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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
quality
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Aerzen High Vacuum Blower AMUSA GMB 1715 HV
$15,200.00
quality
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CoolTech SPX ROBINAIR HIGH PERFORMANCE VACUUM PUMP 15600
$165.00
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SMC XLD 40 Pneumatic High Vacuum Valve Working
$358.13
quality
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MDC Linear Motion High Vacuum Feedthrough Bellows 2 3 4 Conflat Adapter
$99.99
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MDC MFG 275 High Vacuum CF Electrical Feedthrough Flange
$59.00
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HVA HIGH VACUUM APPARATUS 11211 0403R PNEUMATIC GATE VALVE 4 ID STAINLESS STEEL
$250.00
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Varian High Vacuum Chamber Model 951 5013 Shut Off Valve 275 Flange MDC GP
$218.00
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Huntington High Vacuum Reseach Chamber 1325CFF Flange 275CFF Ports Varian MDC
$495.00
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High Vacuum Flexible Bellows SS 50mm Aperture
$19.95
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Lot of 2 SMC ZM071H K5L E15C High Pressure Vacuum Generator ZM Series
$175.00
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Edwards D02602000 High Vacuum Gauge APG 100 xm Used Working
$199.99
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LAPINE VACUUM MASTER HIGH VACUUM PUMP LEYBOLD
$390.00
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New Sealed HIS High Vacuum Tubing hose Flexible Bellows KF40
$75.00
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Pittman Ametek High Capacity Flow Diaphragm Pumps T1 2HD 12 1NEA
$94.99
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Edwards High Vacuum Interface D37215000 Flash Module
$225.00
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Castrol Braycote 806 High Vacuum Grease
$85.00
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NEW 275 CF Conflat Flange High Vacuum Research Chamber Feedthrough Stainless
$49.99
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HVA 6ID 11OD Flange Stainless Steel Gate Valve Housing High Vacuum Apparatus
$116.99
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump E7B4B3 7 224
$399.99
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varian vacuum high feed through A0662 51a110942
$81.84
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varian vacuum high feed through A10737 51a109361b
$91.14
quality
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump 1400 1600RPM
$374.99
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MDC GV 2500 25CF ConFlat Flange Ultra High Vacuum UHV Pneumatic Gate Valve
$199.99
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Leybold Trivac D25ET1 21111147 Dual Stage Rotary Vane High Vacuum Pump D25E
$349.99
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High Vacuum Research Chamber 1325 CFF Flange Reducer Varian Huntington MDC
$395.00
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Edwards PV25MK high pipeline vacuum valve 7bar right angle stainless NW25 clamp
$100.00
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Edwards E2M 1 Portable Dual Stage Rotary Vane High Vacuum Pump 2680 3200RPM 1PH
$183.99
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2 Stage High Performance Rotary Vane Deep 7 CFM Vacuum Pump
$369.00
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 3
$399.99
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Ebara FS8 Vacuum Cryo Pump 11 Flange ICP 200L Genesis High Vacuum Cryogenic
$199.99
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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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High Vacuum Research Chamber 6 CFF Flange Reducer Huntington Varian MDC
$95.00
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7 Piece Lot of Aluminum KF25 High Vacuum Fittings
$159.00
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Edwards Speedivac High Vacuum Magnetic Valve 1 AA 00452
$149.00
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AN High Vacuum Solenoid Valve KF40 IV150 QF C P K S3A
$149.00
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5 Long High Vacuum Bellows 375 OD
$99.00
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SMC Air Actuated High Vacuum Valve Sanitary Position Sensors 2L80 XLAQ Pneumatic
$79.99
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12 Tall High Vacuum Chamber
$199.00
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KINNEY KC 15 KC15 801419 1HP 1 HP 230 460 HIGH VACUUM PUMP
$725.00
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Stainless Steel Ultra High Vacuum DPS Bellows Test Jig 725 Diameter HPS MKS
$129.99
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KINNEY GENERAL SIGNAL GS KC 15 KC15 1HP 1 HP 208 230V 460V HIGH VACUUM PUMP
$720.00
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MDC MFG High Vacuum CF Elbow 275 OD
$49.00
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Norcal NOR CAL High Vacuum Pneumatic Valve Pump 90 degree 796 00809 1 001
$249.99
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KINNEY KC 15 KC15 1HP 1 HP 208V HIGH VACUUM PUMP
$730.00
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KINNEY KC 15 KC15 1HP 1 HP 208 230 460V HIGH VACUUM PUMP
$720.00
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Varian VacIon High Vacuum Pump Chamber 912 6000
$99.00
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Veeco Mobile High Vacuum Pumping Station With Welch 1402 Pump
$550.00
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Welch 8917A High Vacuum Pump Two Stage Rotary Vane Oil Sealed Tested
$975.00
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HPS High Vacuum Convection Gauge
$99.00
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SMC XVD2 02V High Vacuum Valve NEW BOXED
$224.99
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KINNEY kc 5 KC 5R KC5R 1 3HP 1 3 HP 115 230V 1PH HIGH VACUUM PUMP
$645.00
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KINNEY KC 5 KC5 802497 1 3HP 1 3 HP 115 230V 110 220V 1PH HIGH VACUUM PUMP
$655.00
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KINNEY KC 5 KC5 802497 1 3HP 1 3 HP 115 230V 1PH HIGH VACUUM PUMP
$660.00
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KINNEY KC 5 KC5 802497 1 3HP 1 3 HP 115 230V 1PH HIGH VACUUM PUMP
$640.00
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COOLTECH SPX ROBINAIR HIGH PERFORMANCE VACUUM PUMP 15600 6 CFM 1 2 HP MOTOR
$60.00
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Hedland Pressure Flow Meter and Valve Industrial Valves Meters High Quality
$49.95
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High Vacuum Trap KF16
$99.00
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18CFM Single Stage Rotary Vane Vacuum Pump High Efficiency Air Hvac Low Noise
$56.99
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18CFM Single Stage Rotary Vane Vacuum Pump High Efficiency Low Noise AIR New
$57.99
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CVC 20 VRA High Vacuum Valve VRA 21GM New unused Poppet Valve 500mm
$12,500.00
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New 2 Stage High Efficiency Rotary Vane Vacuum Pump 1 3HP Super VP235
$129.00
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18CFM Single Stage Rotary Vane Vacuum Pump Low Noise For Airs High Efficiency
$56.25
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AUTOCLAVE ENGINEERS high pressure coned and threaded nipples cn9904 316
$20.00
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TUTHILL HIGH PRESS INDUSTRIAL BLOWER 3202 64T3 4656 HORIZONTAL FLOW GASTIGHT
$1,595.00
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Key High Vacuum Diffusion Rotary And Vacuum Pump
$1,000.00
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SPEEDIVAC HIGH VACUUM Clamp
$20.00
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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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6 ISO 150 TEE 304 SS High Vacuum Pipe
$175.00
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Leybold Heraeus Turbovac 50 DN63CF 55l s Turbo Molecular High Vacuum Pump 85402
$799.99
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4 ISO 100 TEE 304 SS High Vacuum Pipe
$165.00
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High Vacuum Pump Extended life Oil Free
$2,000.00
quality
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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 E2M40 Two Stage Rotary Vane High Vacuum Pump w Leeson 2HP Motor
$1,999.99
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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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