High Vacuum

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Edwards E2M28 21 CFM 2 Stage High Capacity Vacuum Pump
$5,200.00
quality
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Veeco High Vacuum Valve 2683 000 03 FPL62S
$99.95
quality
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Parker 18AA 882VMVM High Purity Manual Valve Lot of 6 ASM Epsilon 3000 Used
$209.16
quality
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1 USED THERMAL ENGINEERING 1825Z 2 STAGE HIGH VACUUM PUMP MAKE OFFER
$199.99
quality
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump Cryopump Untested
$349.95
quality
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STAINLESS STEEL CENTERING RING O RING AL SPACER ISO 160 NW 160 HIGH VACUUM
$74.99
quality
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VAT 14048 PE44 AAU1 High Vacuum Gate Valve MeiVac 2460 Used Working
$2,502.16
quality
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AMAT 0040 13264 ST ST ISO KF 50 6 1 2 90 Degree Elbow High Vacuum Fitting
$125.00
quality
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Varian 843 Vacuum Ionization Gauge Ratiomatic High Vacuum
$875.00
quality
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Thermonics High Vacuum Research Chamber 6 Flange Reducer
$95.00
quality
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Alcatel High Vacuum Technology Rebuild Kit Part Number P1936301 OEM Packaging
$75.00
quality
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MDC High Vacuum Research Chamber 6 Flange Reducer
$110.00
quality
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HVA HIGH VACUUM APPARATUS 4 ANSI PNEUMATIC GATE VALVE
$559.99
quality
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MDC High Vacuum Research Chamber 6 Blank Flange
$85.00
quality
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New VAT 394307 0249 HV High Vacuum Angle Air Operated Valve Insert
$299.99
quality
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Edwards 3 RV3 High Vacuum Pump Needs Rebuild
$575.00
quality
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Welch 1400 DuoSeal Two Stage High Vacuum Pump Needs Rebuild
$375.00
quality
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Alcatel Drytel 30 Turbo Drag Dry High Vacuum Pump
$2,360.00
quality
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NEW Edwards EXT 200 200H 24V DC Turbo Molecular High Vacuum Pump 200 l s 60
$1,135.25
quality
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SpeediVac ED50 high vacuum pump nice
$750.00
quality
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High Vacuum Research Chamber 3 Blank Flange MD Varian Huntington Nor Cal
$35.00
quality
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MKS 286 High Vacuum Dual Gauge Controller Digital
$725.00
quality
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MKS HPS 2 STAGE HIGH CONDUCTANCE INLINE ROUGHING VALVE SOFT START 2 KF50 CF
$249.00
quality
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Varian High Vacuum Research Chamber 4 way Flange 275 4 rotate MDC
$95.00
quality
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High performance piston vacuum Pump 115V 1 4HP for R12 R22 R500 R502
$63.74
quality
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Varian 4 way High Vacuum Research Chamber 275 Flange 3 rotate 1 fixed
$105.00
quality
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MDC High Vacuum Research Chamber 2 Way CFF Flange Excellent
$85.00
quality
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Edwards E2M5 High Vacuum Pump NON WORKING VACUUM PUMP
$249.99
quality
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Edwards Pneumatic KF40 Shut Off Valve 90 Degree Angel High Vacuum Research
$345.00
quality
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VAT 4 5 8 Conflat CF High Vacuum Gate Valve 461 Electro Pneumatic Actuator
$258.00
quality
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Varian Agilent Ion Gauge Tube 275 Flange Hot Cathode 2636 High Vacuum
$85.00
quality
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Varian Hot Cathode Ion Gauge Tube 275 Flange 2636 Agilent High Vacuum Bayard
$95.00
quality
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VAT High Vacuum ASA Gate Valve 1375 OD
$1,499.99
quality
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MDC View Port High Vacuum Flange 275 CF
$81.99
quality
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High Vacuum Pump Reservoir Thick Wall Stainless Steel KF 25 NW25
$199.97
quality
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump
$750.00
quality
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SPX Robinair Cooltech High Performance PUMPModel 15120A Gently Used
$354.99
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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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
quality
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MKS HPS HIGH VACUUM VALVE FIXTURE ISO KF
$999.99
quality
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High Vacuum Nipple ISO 100
$50.00
quality
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Parker 18AA 8482VM uhp Ultra High Purity Manual Valve Lot of 8 Epsilon 3000 Used
$311.16
quality
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EDWARDS ED660 SPEEDIVAC BELT DRIVE ROTARY HIGH VACUUM PUMP 40CMH BALDOR M3554
$750.00
quality
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HPS Vacuum Products High Vacuum Tube Tee Stainless Steel ISO100 ISO K NW25 Used
$206.16
quality
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SMC XLD 40 X542 High Vacuum Valve 10 6 Pa atm
$74.99
quality
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Edwards Q80 4 22 QDP80 QMB500 High Vacuum Controller Module w Power Cable 3PH
$498.00
quality
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High Vacuum Flange Stainless Steel
$100.00
quality
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GNB Corporation G6CSOX High Vacuum Gate Valve
$850.00
quality
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KINNEY HIGH VACUUM PUMP MODEL KC8 RC USED ELECTRIC MOUNTED ON APPLIANCE DOLLY
$90.00
quality
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High Vacuum Research Chamber 4 1 2 Blank Flange MDC Varian Huntington
$55.00
quality
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Nor Cal High Vacuum Pump + Free Priority Shipping
$65.00
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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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
$129.97
quality
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Balzers Pfeiffer Turbomolecular TMU 065 Turbo Drag High Vacuum Pump
$669.22
quality
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SMC XLF 50G A90LA XA HIGH VACUUM VALVE
$194.97
quality
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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
quality
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MDC VARIAN 10 CONFLAT HIGH VACUUM ISO 12 BELLOWS
$250.00
quality
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MDC 10 CONFLAT BELLOWS 10 ISO HIGH VACUUM CHAMBER
$250.00
quality
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Edwards PVA5E High Vacuum Pipeline Valve
$57.39
quality
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2 OD High Vacuum Stainless Steel Threaded Flange 3 Bolt
$14.99
quality
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MDC High Vacuum Reserch Chamber 10 Blank Flange + Two 1 Ports A
$385.00
quality
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3 new Banner SE61EMHS photoelectric high speed emitter 25971
$75.00
quality
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New High Vacuum Valve 2 XLF 50G
$56.98
quality
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3 Boc Edwards C10011151 ISO 160 250 Half Claw High Vacuum Clamp
$27.00
quality
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Boc Edwards C10516494 NW 40 Trapped Ring PTFE Viton High Vacuum Fitting
$48.00
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
$458.32
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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Edwards C5469 High Vacuum Tube Adapter ISO100 to ISO160 NW25 Used Working
$356.16
quality
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Butterfly Gate Valve High Vacuum 4 ID Motor Driven
$80.00
quality
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Flex Flange 4 ID with Flange Bolts High Vacuum Stainless Steel
$80.00
quality
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Swagelok 316 0YB 95mm 2250PSIG 155Bar High Pressure Hose 100R7 6 46
$49.99
quality
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2x Swagelok 316 0YB 95mm 2250PSIG 155Bar High Pressure Hoses 100R7 6
$99.99
quality
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SMC XLAV 40G F9 5LOZ HIGH VACUUM ANGLE VALVE 04 07MPA 021SEC 40MM FLANGE
$95.00
quality
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Edwards E2M8 Rotary Vane High Vacuum Pump Tested + filter
$239.99
quality
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump
$700.00
quality
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump
$700.00
quality
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump
$700.00
quality
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High Vacuum Research ISO K Mitered 90 Degree Elbow ISO K 100NW
$225.00
quality
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Key High Vacuum DAP 50 P 0 Bellows Sealed Brass Valve w Wixom 45A AA1 DAAJ 1KA
$129.99
quality
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High Vacuum 3000RPM Research Chamber 3Phase PNC Motor with Stainless Spinner
$245.00
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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