High Vacuum

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Edwards E2M8 8 Two Stage 1725RPM 1 2HP Rotary Sliding Vane High Vacuum Pump
$349.99
quality
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Thermionic High Vacuum Research Chamber Roughing Pump Fourline Trap Varian
$115.00
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High Vacuum Research Chamber 90 Degree Elbow 275 Flange Rotate Able MDC Varian
$125.00
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High Vacuum Research Chamber Reducer KF25 KF16 Clamp Varian MDC
$55.00
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High Vacuum Research Chamber 45 Degree KF25 Elbow + Clamp Varian MDC
$115.00
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High Vacuum Research Chamber KF40 KF25 Reducer Clamp Varian MDC
$125.00
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Welch Duo Seal Two Stage High Vacuum Pump Model 1397 WORKING
$1,599.99
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High Pressure High Heat Hose Assembly Carpet Cleaning Extractors Vac
$139.00
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High Vacuum Research Chamber 45 Del Seal Blank Flange Nor Cal Varian MDC
$115.00
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MDC High Vacuum Research Chamber 45 Blank Flange Threaded Varian Huntington
$95.00
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VAT CF Conflat High Vacuum Pneumatic Gate Valve 9 OD 6 ID 14044 CE14 0004
$999.00
quality
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New KEY High Vacuum Products 3 4 Brass Inline Valve Poppet Disc BLP 75
$127.50
quality
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TEMESCAL HIGH VACUUM GATE VALVE 8 INCH ASA NEW UNUSED
$1,150.00
quality
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New Sealed HIS High Vacuum Tubing hose Flexible Bellows KF40
$75.00
quality
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Key High Vacuum Valve BL 162 P O Bellows Sealed With 120vac Mac Valve 1625 Port
$60.00
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Robinair 15600 Vacuum Pump 6CFM 2 STAGE 1 2 hp COOLTECH SPX HIGH PERFORMANCE 110
$99.00
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MDC Model GV 4000M High Vacuum 4 UHV Gate Valve 302004 2 Available 05380539
$750.00
quality
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High Vacuum Baffle for ISO F 100 DN100 VAT gate valve pneumatic actuation used
$120.00
quality
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45 Long High Vacuum SS KF40 Bellows Flex Pipe Hose
$49.00
quality
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Stokes 306 41 High Vacuum Blower Pump with Stand 15 GPM 3450 RPM
$3,495.00
quality
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New 4CFM 2 Stage High Efficiency Rotary Vane Vacuum Pump 1 3HP
$159.00
quality
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Key Brass High Vacuum Valve BL 162 O NOS
$145.00
quality
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Edwards EXT 76DX Turbo Molecular High Vacuum Pump B722 43 000 New
$3,209.13
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Key Brass High Vacuum Valve BAP 100 33700 NOS
$75.00
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NEW MDC 350006 AVG IVG 200 ANGLE INLINE VALVE KIT 2 VITON HIGH VACUUM
$18.99
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MDC High Vacuum Research Chamber 4 1 2 Blank Flange Threaded Varian Nor Cal
$85.00
quality
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Ultra High Vacuum UHV Stainless Steel Test Chamber Multipurpose Multiport
$1,295.00
quality
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High Vacuum Research Chamber 4ASA Reducer Flange Varian Pfeiffer MDC
$155.00
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High Vacuum Research Chamber 6ASA Worcester Shut Off Valves MDC Varian
$225.00
quality
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SMC XLA 16 HIGH VACUUM ANGLE VALVE LF 16 NW16 FLANGE SIZE
$239.99
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Pfeiffer High Vacuum Turbo Pump
$2,900.00
quality
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HIGH VACUUM PIPE CHAMBER ELBOW VALVE 17 2 1 2 2 inch over
$120.00
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Lot high vacuum accessories
$1,400.00
quality
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Leybold Heraeus RGD 210 KF25 1OD Pneumatic High Vacuum Valve Cylinder Assembly
$144.99
quality
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Varian VacIon 921 0015 High Voltage Vacuum Ion Pump Control Unit Controller 2
$199.99
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NEW SMC ZSE30 T1 65 L HIGH PRESSURE VACUUM SWITCH S13 1 155B
$64.99
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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 HIGH VACUUM FITTING TUBE NIPPLE 4TUBE FLANGE 821001 S19 3 1H
$74.99
quality
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NEW MDC BLANK HIGH VACUUM LF FLANGE 812008 S19 3 4E
$22.99
quality
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Alcatel Annecy MDP 5010 75l s Turbo Molecular Drag Pump High Vacuum 27000RPM
$799.99
quality
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Robinair High Vacuum Pump 45 CFM
$150.00
quality
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HVA 6ID 11OD Flange Stainless Steel Gate Valve Housing High Vacuum Apparatus
$90.99
quality
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316 STAINLESS STEEL BALL VALVE WITH HIGH VACUUM TUBE FITTING QUICK CLAMP 1
$120.00
quality
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Varian VacIon 921 0015 High Voltage Ion Vacuum Pump Control Unit Controller 1
$199.99
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Genesis ICP 200 623 4202 Quick Regen Ultra High Fixed Sputter Cryopump CF Flange
$1,199.99
quality
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2 Sanwa Denki Electric High Vacuum Pressure Switch SVS 5K Hitachi SEM
$69.99
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NEW Robinair 13204 Premium High Vacuum Pump Oil 4 one gallon jugs
$102.92
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2 Stage High Performance Rotary Vane Deep Vacuum Pump 5CFM HVAC Tool 2993Hg Nu
$189.97
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LEYBOLD HIGH VACUUM SOLENOID VALVE KAT NR 28100 HOERBIGER PA 10310
$289.99
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Key High Vacuum Products Inc SL 150 Valve
$104.99
quality
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Genesis Vacuum Technologies ICP 200LQ CF CE High Vacuum Cryopump Used Working
$4,509.14
quality
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Genesis Vacuum Technologies ICP 200LQ CF C High Vacuum Cryopump Used Working
$4,509.14
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Cenco High Vacuum Diffusion Pump Cat No 93435 1200W 230V
$800.00
quality
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SKC HIGH VOLUME SAMPLING VACUUM PUMP GAST Model 3031 V104 G570X
$399.99
quality
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VAT High Vacuum Gate Valve A 214625
$599.00
quality
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VAT 8 ASA High Vacuum Gate Valve 20046 PA14 1001
$999.00
quality
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LEYBOLD HIGH VACUUM GMBH D 50968 KOLN TYPE EV 063 P AL
$333.99
quality
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SMC High Vacuum Valve XLA XLAQ 40 X798 3D80 001039 11
$45.00
quality
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High Vacuum Research Chamber ASA Irregular 7OD Flang Varian MDC
$175.00
quality
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High Vacuum Flexible Coupler Bellows Pipeline 5 Long ISO 275 Aperture
$55.99
quality
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SMC XLA160 30 1 M9BA High Vacuum Valve Assembly Used Working
$304.14
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SMC ZSE40 C4 22L High Precision Digital Adjustable Vacuum Switch
$65.99
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CKD Corporation Model AVB21 X0017 Aiir Operated Valve for High Vacuum O
$139.99
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CKD Corporation Model AVB21 X0022 Aiir Operated Valve for High Vacuum O
$139.99
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Robinair VacuMaster High performance Vacuum Pump 15600 1 2hp 6cfm
$69.00
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MKS Stainless Steel Bellows High Vacuum Tube 19 1 2 Length DN16 KF Flange
$59.99
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High Vacuum Two Port Adapter Two 1 1 2 inch Tube to 5 inch Port
$185.00
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SMC XLAV 40G F9 5LOZ HIGH VACUUM ANGLE SOLENOID VALVE
$290.00
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Edwards PV25MK high pipeline vacuum valve 7bar right angle stainless NW25 clamp
$100.00
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Edwards High Vacuum Manually Operated Needle Valve NOS
$140.00
quality
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Edwards E2M40 Two Stage Rotary Vane High Vacuum Pump w Leeson 2HP Motor
$1,999.99
quality
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Helix CTI Cryogenics Cryo Torr 7 High Vacuum Pump 1000L s Cryopump 6 NO GAUGE
$299.99
quality
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NEW HVA 122 0060 16mm Pneumatic Gate Valve Stainless Steel High Vacuum Apparatus
$112.99
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20 x 20 Water Cooled Round SS High Vacuum Chamber w many ports
$5,999.99
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 1
$399.99
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Leybold Heraeus Turbovac 50 DN63CF 55l s Turbo Molecular High Vacuum Pump 85402
$699.99
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VARIAN HIGH VACUUM CHAMBER STAINLESS STEEL TORR CONFLAT
$4,500.00
quality
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VAT STAINLESS STEEL HIGH VACUUM VALVE 4 1 2 CONFLAT
$350.00
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Leybold Trivac D10E Dual Stage Oil Sealed Rotary Vane High Vacuum Pump 3
$399.99
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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 D25E Dual Stage Rotary Vane High Vacuum Pump E7B4B3 7 224
$399.99
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Leybold Trivac D25E Dual Stage Rotary Vane High Vacuum Pump 1400 1600RPM
$374.99
quality
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VACUUM PUMP AIR CONDITIONING LOW NOISY 4 CFM HIGH EFFICIENCY MEET YOUR NEEDS
$70.00
quality
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VACUUM PUMP 1720 RPM SPEED AIR CONDITIONING 4 CFM HIGH EFFICIENCY POPULAR
$70.00
quality
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VACUUM PUMP HVAC AC AIR TOOL ROTARY VANE DEEP 4 CFM HIGH EFFICIENCY WELL MADE
$70.00
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VACUUM PUMP DIRECT DRIVE MOTOR 1 3 HP MOTOR 4 CFM HIGH EFFICIENCY HOT PRODUCT
$70.00
quality
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VACUUM PUMP COOLING FAN DIRECT DRIVE MOTOR HVAC AC AIR TOOL HIGH ADMIRATION
$70.00
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VACUUM PUMP REFRIGERANT MACHINE DIRECT DRIVE MOTOR 4 CFM HIGH EFFICIENCY POPULAR
$70.00
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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