High Vacuum

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Sloan High Back Pressure Vacuum Breaker Sz 1 1 2x 21 1 2V600AA 1 1 2 X 21 1 2
$56.52
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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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High Vacuum Pump Reservoir Thick Wall Stainless Steel KF 25 NW25
$199.97
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Parking Lot Sweeper Vacuum Tennant 6600 High Dump Kubota Diesel Hydrostatic
$5,000.00
quality
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump
$750.00
quality
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VAT 26524 KA11 001 0452 Inline Pnuematic High Vacuum Valve ISO DN16
$25.00
quality
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RIDGID Wet Dry Vac Vacuum Cleaner 14 gal 6 Peak High Performance
$140.88
quality
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Stainless Steel High Vacuum Chamber 6 inch
$685.00
quality
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SMC Pneumatics XLD 40 A93A High Vacuum Valve 04 07MPa Pressure KF NW 40
$149.99
quality
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SMC High Vacuum Smooth Vent Valve Model XVD2 02V
$49.95
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10 Long High Vacuum NW40 KF 40 Thick Wall Flexible Bellows Hose
$37.97
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EDWARDS ED660 SPEEDIVAC BELT DRIVE ROTARY HIGH VACUUM PUMP 40CMH BALDOR M3554
$750.00
quality
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Boc Edwards International High Vacuum LAM LON I F Module ERPIM NEA878000 Unit
$99.98
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Edwards Q80 4 22 QDP80 QMB500 High Vacuum Controller Module w Power Cable 3PH
$438.24
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Bell Jar Vacuum Chamber 20 ID x 28 high
$675.00
quality
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High Vacuum Research Chamber 4 1 2 Blank Flange MDC Varian Huntington
$75.00
quality
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High Vacuum Research Chamber 4 1 2 Blank Flange Excellent MDC Varian
$85.00
quality
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Varian High Vacuum Research Chamber 4 1 2 Flange Reducer MDC Huntington
$155.00
quality
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Varian BA2 SenTorr High Vacuum Gauge Controller
$9.99
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Huntington High Vacuum Research Chamber 90 Degree Rotatable Elbow 275 Flabge
$65.00
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MDC High Vacuum Reserch Chamber 5 WayCross 10 Sphere Flange Varian Huntington
$2,195.00
quality
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SMC XLF 50G A90LA XA HIGH VACUUM VALVE
$97.48
quality
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Balzers Pfeiffer Turbomolecular TMU 065 Turbo Drag High Vacuum Pump
$1,032.75
quality
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Edwards High Vacuum UHV Thermocouple 30ft Cable D36832010 Conflat MDC MKS New
$89.00
quality
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VRC Gate Valve + MeiVac MKS 152 Throttle High Vacuum Chamber UHV MDC Norcal
$3,765.00
quality
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SMC XLF 50G A90LA XA HIGH VACUUM VALVE
$146.23
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MDC VARIAN 10 CONFLAT HIGH VACUUM ISO 15 BELLOWS
$250.00
quality
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High Vacuum Aluminum 275 Blank Flange 2 Bolt
$10.99
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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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2 OD High Vacuum Stainless Steel Threaded Flange 3 Bolt
$14.99
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MDC High Vacuum Reserch Chamber 10 Blank Flange + Two 1 Ports A
$385.00
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3 new Banner SE61EMHS photoelectric high speed emitter 25971 sold as lot of 3
$75.00
quality
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New Ferrotec CU175 S25 CP Ferrofluidic High Vacuum Rotary Feedthrough
$399.99
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New High Vacuum Valve 2 XLF 50G
$63.79
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3 Boc Edwards C10011151 ISO 160 250 Half Claw High Vacuum Clamp
$23.76
quality
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Boc Edwards C10516494 NW 40 Trapped Ring PTFE Viton High Vacuum Fitting
$42.24
quality
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Grandville Philips ULTRA High Vacuum Research Chamber 275CFF Shut Off Valve
$195.00
quality
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Precise Sensors 3223 30 01 G 4SF P1 Q2833 Ultra High Purity Transducer New
$256.16
quality
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SMC High pressure Vacuum Solenoid valve w switch and 3 pin connectors
$60.00
quality
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Nupro Huntington High Vacuum Gas Valve Manifold Pneumatic NIce
$149.00
quality
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Varian FS Eight 8 Flat Cryopump High Vacuum
$666.00
quality
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MDC Del Seal CF Conflat Metal Seal Flange Pair High Vacuum Tooling 447
$1,250.00
quality
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Varian Turbo V450 TurboMolecular High Vacuum Pump 969 9042
$749.99
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Edwards C5469 High Vacuum Tube Adapter ISO100 to ISO160 NW25 Used Working
$356.16
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RIDGID 12 Gal 5 PHP Wet Dry Vacuum Model WD1270 High Performance
$61.50
quality
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Varian Turbo V300 Turbo Molecular High Vacuum Pump 969 9032 TMP
$749.99
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Varian CryoStack 8 8 High Vacuum Cryo Pump
$259.99
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Butterfly Gate Valve High Vacuum 4 ID Motor Driven
$125.00
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Flex Flange 4 ID with Flange Bolts High Vacuum Stainless Steel
$100.00
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SMC XLAV 40G F9 5LOZ HIGH VACUUM ANGLE VALVE 04 07MPA 021SEC 40MM FLANGE
$66.50
quality
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Helix CTI Cryogenics Cryopump 8107817G001 Hi Torr High Vacuum Pump 8F
$2,750.00
quality
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 2CFM Check Valve HVAC Tool
$97.77
quality
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KINNEY High Vacuum Pump
$750.00
quality
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ISO Mitered 90 Degree Elbow 100NW High Vacuum Research Large Flange Fitting
$225.00
quality
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Edwards High Vacuum International A363 01 131 Clean Overhaul Kit E1 2M18 pump
$109.95
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High Vacuum 3000RPM Research Chamber 3Phase PNC Motor with Stainless Spinner
$245.00
quality
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 12CFM 1HP HVAC Field Tool
$447.77
quality
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Blazer High Vacuum Research Chamber 4 1 2 Flange Reducer
$245.00
quality
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11 Boc Edwards C10007090 ISO 63 250 Double Claw Clamp High Vacuum Fitting
$70.40
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16 High Vacuum Straight Pipe Connecting Nipple
$50.00
quality
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Pfeiffer Balzers TPH 330 High Vacuum Turbo Molecular Pump PM P01 232 K168
$699.99
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CTI Cryogenics 8033170 Cyro Torr 8 High Vacuum Pump W Temp Indicator 8043459G001
$4,500.00
quality
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Ionization Gauge G 75 High Vacuum Products
$75.00
quality
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Vintage Kinney KC 3 High Vacuum Pump w GE Motor System
$999.00
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High performance Piston Vacuum Pump for R12 R22 R500 R502 as pictured
$29.99
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High Vacuum NW KF25 Bored Stainless Steel Flange Blank Off
$9.99
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NEW SMC XLC 25H0 HIGH VACUUM VALVE HIGH TEMPERATURE TYP
$203.99
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New Leybold High Vacuum Aluminum NW50 KF50 Long Weld Stub Flange
$15.99
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Super Lube 91003 Silicone High Dielectric and Vacuum Grease 3 oz
$11.97
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Edwards D37209000 High Vacuum Int Flash Module 402462 Pump Display Terminal
$399.99
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KEY HIGH VACUUM PRODUCTS INC MODEL BAP 150 P
$300.00
quality
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Varian 275 in CF Conflat High Vacuum Viewport Sightglass Window
$49.99
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SMC Pneumatics XLD 40 High Vacuum Valve Pump Replacement Parts Sealed
$149.99
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5 in ISO Flange High Vacuum Viewport Sightglass Window
$174.99
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Leybold 88275 Ultra High Vacuum Clamping Collar Aluminum
$10.00
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High Vacuum Research Chamber 10 Blank Flange MDC Varian Huntington
$195.00
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Stainless Steel High Vacuum Tubing ISO100 K 1455mm Long ISO K DN100 Flange
$349.99
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Norcal ISO 250 000 0F ISO 250 Stainless Blank Flange Cap Nor Cal High Vacuum
$129.00
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Key High Vacuum Brass Valve BL 112 + Whitey SS 43S4 Ball Valve
$161.85
quality
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Lot of 2 AN AV150 QF E AS Pneumatic Right Angle High Vacuum Bellows Valve
$199.99
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Lot of 2 AN AIV150 QF E AS Pneumatic Inline High Vacuum Valve
$199.99
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High Vacuum Aparatus 22211 0209R Valve Gate
$450.00
quality
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CTI Cyrogenics Cryo Torr 8 High Vacuum Pump 8033168
$1,349.99
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Savant Model VP100 High Vacuum 2 stage Vacuum pump 115 230 volt 1 2 HP
$650.00
quality
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Pfeiffer Model UNO 030 B High Vacuum Pump 208 230 volt 1 HP
$1,000.00
quality
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MKS High Vacuum Manual Valve 151 0063C
$235.00
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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