===== Cryostat ===== For DAMIC-M@Zurich a new Cryostat was commissioned. It is based on the design of the AlpineCube by //P. Robmann//, the cryo- and vacuumsystem staied the same. It is heavely modified on the cryohead mounting and CCD holders/assembly and was designed by //E. Gkougkousis//. ---- {{:darma:darma_cryostat_front.png?400 |Frontside}} {{ :darma:darma_cryostat_back.png?400|Backside}} ---- ^ Name ^ Assembly Diagramm ^ Part Drawings ^ STEP Files ^ | Cryostatbody | {{ :darma:assembly_diagram:cryovesselassembly.pdf |Cryovessel Assembly}}{{ :darma:assembly_diagram:cryostatbodyassembly1.pdf |Cryostatbody Front Assembly Diagramm}} {{ :darma:assembly_diagram:cryostatbodyassembly2.pdf |Cryostatbody Back Assembly Diagramm}} | {{ :darma:part_drawings:cryostatbody_top.pdf |Cryostatbody Top}} {{ :darma:part_drawings:cryostatbody_back.pdf |Cryostatbody Back}} {{ :darma:part_drawings:cryostatbody_front.pdf |Cryostatbody Front}} | {{ :darma:step_files:cryostatbody.zip |Cryostatbody Part}} | | Cryostat Door | {{ :darma:assembly_diagram:cryostatdoor.pdf |Cryostatdoor}} | {{ :darma:part_drawings:cryostatdoor.pdf |Cryostatdoor Part Drawings}} | {{ :darma:step_files:cryostatdoor.zip |Cryostat Door}} | | Cryohead | {{ :darma:assembly_diagram:cryoheadassembly.pdf |Cryohead Assembly Diagramm}} | {{ :darma:part_drawings:cryoheadsupportplane.pdf |Cryohead Support Plane}} | {{ :darma:step_files:cryoheadsupportplane.zip |Cryohead Support Plane}} | | Cryostat Complete | {{ :darma:assembly_diagram:cryostatcomplete.pdf |Cryostat Complete}} | {{ :darma:part_drawings:ccdassemblysupportplane.pdf |CCD Assembly Support Plane}} | {{ :darma:step_files:ccdassemblysupportplane.zip |CCD Assembly Support Plane}} | | Insulator | Not Available | {{ :darma:part_drawings:al2o3insulator.pdf |Al203 Insulator disk}} | {{ :darma:step_files:al2o3insulator.zip |Al203 Insulator Disk}} | | DB50 Pass Through Shield | ::: | {{ :darma:part_drawings:db50passthroughshield.pdf |DB50 Pass-through Shield}} | {{ :darma:step_files:db50passthroughshield..zip |DB50 Pass-through Shield}} | | Door Flange | ::: | {{ :darma:part_drawings:doorcylindricalflange.pdf |Door Flange}} {{ :darma:part_drawings:boardpassthroughexternalflange.pdf |Door Pass-through External flange}}{{ :darma:part_drawings:boardpassthroughinternalfalge.pdf |Door Pass-through Internal flange}} | {{ :darma:step_files:doorcylindricalflange.zip |Door Flange}} | | Electronics Assembly | {{ :darma:assembly_diagram:electronicsassembly.pdf |Electronics Assembly}} | Not Available || | Board Pass-through External flange | Not Available || {{ :darma:step_files:boardpassthoughexternalflange.zip |Board Pass-through External flange}} | | Board Pass-through Internal flange | ::: | ::: | {{ :darma:step_files:boardpassthroughinternalfalge.zip |Board Pass-through Internal flange}} | | Vacuuminterface | {{ :darma:assembly_diagram:vacuminterfaceassemby.pdf |Vacuum Interface Assembly}} | {{ :darma:part_drawings:vacuumsealcover.pdf |Vacuum Seal cover}} | {{ :darma:step_files:vacsealcover.zip |Vacuum Seal plate}} | | Vacuum Fittings | {{ :darma:assembly_diagram:vacuumfittingsassembly.pdf |Vacuum Fitting Assembly}} | ::: | ::: | | Vacuum Intake | {{ :darma:assembly_diagram:vacuumintakeassembly.pdf |Vacuum Intake Assembly}} | ::: | ::: | | Cryohead Mount | {{ :darma:assembly_diagram:heaterassembly.pdf |Heater Assembly}} | {{ :darma:part_drawings:temperaturesensorattachment.pdf |Temperature Sensor Container}} {{ :darma:part_drawings:cryoheadheaterattachment_top.pdf |Cryohead Mount Left/Right Side}} {{ :darma:part_drawings:cryoheadheaterattachment_side.pdf |Cryohead Mount Top/Bottom Side}} | {{ :darma:step_files:cryoheadheaterattachment.zip |Heater Attachement}} {{ :darma:step_files:temperaturesensorattachment.zip |Temperature Sensor Atachement}} | ==== BOM ==== ^ Assembly ^ Description ^ Category ^ Quantity ^ Weight (kg) ^ Material ^ Manufacturer ^ Original Part No. ^ Supplier ^ ^ Cryo-Head | M8x25 Hex socket head cap screws fully threaded, BN 610 | Screws | 8 | 0.018 | Stainless steel | Bossard | 1233440 | Bossard | ^ ::: | Flat washers without chamfer, DIN 125, for M8 thread | Washers | 8 | 0.002 | Stainless steel | Bossard | 1965557 | Bossard | ^ ::: | Tube 104x2 mm - 136.1 mm length, 304 stainless | Welding Pipe | 1 | 0.700 | Stainless steel | Polsinelli | MPY0094.1 | UZH Workshop | ^ ::: | Mixed Refrigerant Gas Cryocooler - Mylar Wrapped | Cryo-Head | 1 | 3.900 | Cooper | Advanced Research Systems | CH-R90-2 | Advanced Research Systems | ^ ::: | 90 K Blend Hoses, 1/4" [6mm] by 10' [3 m] | Cryo-Head | 2 | N/A | Stainless steel | Advanced Research Systems | HMG-10-90 | Advanced Research Systems | ^ ::: | Charging Kit - 17 Liter Bottle (MR-90 Blend) | Cryo-Head | 1 | N/A | N/A | Advanced Research Systems | MRS-CB1 | Advanced Research Systems | ^ ::: | ISO 100 Centering Ring with Outer Ring - 301062 | Sealing Ring | 1 | 0.068 | Aluminum | Vacom AG | ISO100ANCRT | BarUvac | ^ ::: | ISO-F Welding Flange, ISO 100 - 301079 | Welding Flange | 1 | 0.414 | Stainless steel | Vacom AG | ISO100F104-304 | BarUvac | ^ ::: | Cryo-Head Support Plane | Machined Part | 1 | 1.77 | 10 mm Stainless steel | UZH Workshop | | UZH Workshop | ^ ::: | M6x25 Hex socket head cap screws fully threaded, ISO 4762 | Screws | 14 | 0.009 | Stainless steel | Bossard | 1233386 | Bossard | ^ ::: | Flat washers without chamfer, DIN 125, for M6 thread | Washers | 14 | 0.001 | Stainless steel | Bossard | 1965549 | Bossard | ^ ::: | 180x5 mm O-ring (5 mm diameter, 565 mm length) | O-Ring | 1 | 0.012 | Nitril | Diehr & Rabenstein | 453310 | Diehr &Rabenstein | | ||||||||| ^ Vacuum Attachment | KF Tubulation, inner diameter 25 mm, 70 mm length | Welding Tube | 1 | 0.109 | Stainless steel | Vacom AG | TU25K70-28-316 | BarUvac | ^ ::: | KF Tubulation, inner diameter 50 mm, 70 mm length | Welding Tube | 1 | 0.345 | Stainless steel | Vacom AG | TU50K70-57-316 | BarUvac | ^ ::: | Vacuum Seal Cover | Machined Part | 1 | 3.09 | 10 mm Stainless steel | UZH Workshop | | UZH Workshop | ^ ::: | M6x25 Hex socket head cap screws fully threaded, ISO 4762 | Screws | 16 | 0.009 | Stainless steel | Bossard | 1233386 | Bossard | ^ ::: | Flat washers without chamfer, DIN 126, for M6 thread | Washers | 16 | 0.001 | Stainless steel | Bossard | 1965549 | Bossard | ^ ::: | 254x5 mm O-Ring NBR 770 ( mm diameter, 799 mm length) | O-Ring | 1 | 0.0173 | Nitril | Diehr & Rabenstein | 453854 | Diehr &Rabenstein | | ||||||||| ^ External Cryostat Hardware | GN 581 Rotating Lifting Rings | Lifting Eye | 4 | 0.060 | Steel | Hanser AG | GN 581-M6-A | Hanser AG | ^ ::: | GN 851 Hook Toggle Clamps | Door Clamp | 2 | 0.080 | Steel | Hanser AG | GN 851-160-T2-NI | Hanser AG | ^ ::: | M4x14 Hexagon socket button head screw | Screws | 12 | 0.002 | Stainless steel | Bossard | 1348841 | Bossard | ^ ::: | RS PRO Rubber Vibration Damper M10, Ø 85mm x 25mm, 40kg | Anti-Vibration Feet | 4 | 0.108 | Rubber - Steel | RS-PRO | 126-3576 | RS-PRO | ^ ::: | M7x14 Ultra-Low-Profile Socket Head Screw | Screws | 8 | 0.006 | Black-Oxide Steel | McMaster-Carr | 90358A141 | McMaster-Carr | ^ ::: | Articulating Constant Torque Hinge, Free Swinging, Bright | Hinge | 2 | 0.111 | Stainless steel | SouthCo | AH-2E-1200A2-24 | Bossard | ^ ::: | M4x25 Hex socket flat countersunk head screw | Screws | 8 | 0.004 | Stainless steel | Bossard | 1448587 | Bossard | | ||||||||| ^ Passthrough Connectors | DB50 Passthrough Shield | Machined Part | 2 | 0.162 | Stainless steel | UZH Workshop | | UZH Workshop | ^ ::: | M3x30 Hex socket head cap partially threaded screw | Screws | 8 | 0.002 | Stainless steel | Bossard | 1111345 | Bossard | ^ ::: | DB50 Feedthrough Connector for Vacuum Applications | DB50 Feedthrough | 1 | 0.13463 | Stainless steel | Positronic Industries | HIVAC50.0 | Mauser | ^ ::: | DB50 Male HIVAC Adapter for Vacuum Applications | DB50 Feedthrough | 2 | 0.03928 | Cooper - Gold | Positronic Industries | HIVAC50.50MG | Mauser | ^ ::: | DB37 Feedthrough Connector for Vacuum Applications | DB37 Feedthrough | 1 | 0.13611 | Stainless steel | Positronic Industries | HIVAC37.0 | Mauser | ^ ::: | DB37 Male HIVAC Adapter for Vacuum Applications | DB37 Feedthrough | 2 | 0.03644 | Cooper - Gold | Positronic Industries | HIVAC37.37M | Mauser | | ||||||||| ^ Cryostat Body | Cryostat Door | Machined Part | 1 | 7.760 | Aluminum | UZH Workshop | | UZH Workshop | | ::: | Cryostat Body | Machined Part | 1 | 22.950 | Aluminum | UZH Workshop | | UZH Workshop | | ::: | Door Cylindrical Flange | Machined Part | 3 | 0.842 | Aluminum | UZH Workshop | | UZH Workshop | | ::: | O-Ring ID 150 mm x 5.3 mm NBR 70 | O-Ring | 2 | 0.012 | Nitrile | Diehr & Rabenstein | 453049 | Diehr &Rabenstein | | ::: | O-ring ID 373 mm x 5.25 mm CS NBR (length (1171.77 mm) | O-Ring | 1 | 0.0304 | Nitrile | Diehr & Rabenstein | 1800499 | Diehr &Rabenstein | | ::: | O-ring ID 353 mm x 5.25 mm CS NBR (length 1110.363 mm) | O-Ring | 1 | 0.0288 | Nitrile | Diehr & Rabenstein | 930829 | Diehr &Rabenstein | | ::: | M5x25 Hex socket head cap screws fully threaded | Screws | 24 | 0.005 | Stainless steel | Bossard | 1233319 | Bossard | | ||||||||| ^ Internal Hardware | 4-40 UNC x 0.5625 Hex socket head cap screws, ANSI B18.3 | Screws | 6 | 0.001 | Stainless Steel | McMaster-Carr | 92196A111 | McMaster-Car | | ::: | 4-40 UNC x 3/8 Inch Socket Countersunk Nylon Screws (ASME B18.3) | Screws | 6 | 0.001 | Nylon | Essenta Components | 020440B025 | Mouser | | ::: | Al2O3 Insulator | Insulation Ceramic | 1 | 0.008 | Al2O3 (Saphire) | Stecher Ceramicparts Gmbh | 59147 | Stecher Ceramicparts Gmbh | | ::: | Arcol AP830 Power Resistor 50Ω ±1% / 30W | Heater | 2 | 0.035 | Al2O3, Plastic, Al | ARCOL | AP830 50R F 50PPM | RS Components | | ::: | M6x6 Hex socket set screws with flat point | Screws | 2 | 0.001 | Stainless Steel | Bossard | 1235869 | Bossard | | ::: | Cryo-Head Heater Attachment | Machined Part | 1 | 0.256 | Cooper | UZH Workshop | | UZH Workshop | | ::: | M3x8 Hex socket head cap screws fully threaded | Screws | 1 | 0.001 | Stainless Steel | Bossard | 1233114 | Bossard | | ::: | M3 Flat washers without chamfer | Washers | 2 | 0.001 | Stainless Steel | Bossard | 1253190 | Bossard | | ::: | M3 Slotted round nuts BN 1413 | Nut | 1 | 0.001 | Stainless Steel | Bossard | 1170007 | Bossard | | ::: | M3x8 Hex socket flat countersunk head screw | Screws | 1 | 0.001 | Stainless Steel | Bossard | 1076469 | Bossard | | ::: | Temperature Sensor Attachment | Machined Part | 2 | 0.006 | Cooper | UZH Workshop | | UZH Workshop | | ::: | Platinum Resistance Pt100 Wire-Wound Detector Element, 28 mm | Temperature Sensor | 2 | 0.0052 | Al2O3 | RND Components | RND 410-00038 | Distrelec | | ||||||||| ^ Electronics Assembly | Front-End Board Vertical Card Guide | Supports | 6 | 0.020 | PA6-GF, PE-HD | Essenta Components | VMCG-90-MPBK-K | Distrelec | ^ ::: | DAMIC Font-End electronics Board V2.0 | Electronics PCB | 4 | | FR4 | UZH | | Elflab Elektronik | ^ ::: | Samtec Pass-through Board | Electronics PCB | 1 | | FR4 | Elflab Elektronik | | Elflab Elektronik | ^ ::: | Board Passthrough External Flange | Machined Part | 1 | 0.232 | Aluminum | UZH Workshop | | UZH Workshop | ^ ::: | Board Passthrough Internal Falge | Machined Part | 1 | 0.405 | Aluminum | UZH Workshop | | UZH Workshop | ^ ::: | M4x20 Hex socket head cap screws fully threaded | Screws | 6 | 0.003 | Stainless Steel | Bossard | 1233246 | Bossard | ^ ::: | O-Ring ID 150 mm x 5.3 mm NBR 70 | O-Ring | 1 | 0.012 | Nitrile | Diehr & Rabenstein | 453049 | Diehr &Rabenstein | ^ ::: | Viton Fluoroelestimer O-Ring, nominal 3½” x 3/32, Dash No, 153 | O-Ring | 2 | 0.003 | Vitron | McMaster-Carr | 93445K482 | McMaster-Carr | ^ ::: | M5x25 Hex socket head cap screws fully threaded | Screws | 12 | 0.005 | Stainless steel | Bossard | 1233319 | Bossard | | ||||||||| ^ Additional Vacuum Hardware | KF Elbow 90°, DN 25 | Vacuum Fittings | 1 | 0.116 | Stainless Steel | Vacom AG | EL25K-304 | BarUvac | ^ ::: | KF Elbow 90°, DN 50 | Vacuum Fittings | 1 | 0.364 | Stainless Steel | Vacom AG | EL50K-304 | BarUvac | ^ ::: | KF Tees, DN25 | Vacuum Fittings | 2 | 0.187 | Stainless Steel | Vacom AG | TE25K-304 | BarUvac | ^ ::: | KF Flange with Pipe Thread, Female, DN25, NPT - Internal Thread | Vacuum Fittings | 2 | 0.048 | Stainless Steel | Vacom AG | KF25NPT14F-316 | BarUvac | ^ ::: | KF Centering Rings, O-Ring, DN50 | Vacuum O-Rings | 3 | 0.027 | Stainless Steel - FKM | Vacom AG | KF50SVCR-304 | BarUvac | ^ ::: | KF Centering Rings, O-Ring, DN25 | Vacuum O-Rings | 6 | 0.011 | Stainless Steel - FKM | Vacom AG | KF25SVCR-304 | BarUvac | ^ ::: | KF Tension Ring for Elastomer Gasket, DN50 | Vacuum Clamps | 3 | 0.157 | Aluminum | Vacom AG | KF50C | BarUvac | ^ ::: | KF Tension Ring for Elastomer Gasket, DN25 | Vacuum Clamps | 6 | 0.062 | Aluminum | Vacom AG | KF25C | BarUvac | ^ ::: | Conical Reducer, ISO-KF Flange Size NW50 to NW40 | Vacuum Fittings | 1 | 0.062 | Aluminum | MKS Instruments | 100313516 | MKS Instruments | ^ ::: | Low Pressure Proportional Relief Valve, 1/4 in. MNPT x 1/4 in. FNPT | Vacuum Fittings | 1 | 0.270 | Stainless Steel | Swagelok | SS-RL3M4-F4 | Swagelok | ^ ::: | Bellows Sealed Valve, Welded, SS Stem Tip, 1/4 in. MNPT | Vacuum Fittings | 1 | 0.110 | Stainless Steel | Swagelok | SS-4H2 | Swagelok | ^ ::: | Safety Valve, NW50 ISO-KF, Vitron, 220 VAC 50/60 Hz | Safety Valve | 1 | 1.800 | Stainless Steel | MKS Instruments | 145-0050K-220V/50-60 | MKS Instruments | ^ ::: | ActiveLine-Gauge Mating connector, 6 pole | Cables | 1 | | Polyamide | Pfeiffer Vacuum | B4707283MA | Pfeiffer Vacuum | ^ ::: | PKR 251, FPM-sealed, DN 25 ISO-KF | Vacuum Sensor | 1 | 0.700 | Stainless Steel | Pfeiffer Vacuum | PTR26000 | Pfeiffer Vacuum | ==== Assembly ==== ^ Step ^ Part ^ No. ^ Weight (kg) ^ ^ 1st Step ^ Cryostat Boody Assembly ||| | ::: | Cryostat Body | 1 | 22.950 | | ::: | O-ring ID 373 mm x 5.25 mm CS NBR (length (1171.77 mm) | 1 | 0.030 | | ::: | O-ring ID 353 mm x 5.25 mm CS NBR (length 1110.363 mm) | 1 | 0.029 | | ::: | DB50 Passthrough Shield | 2 | 0.162 | | ::: | M3 x 30 Hex socket head cap partially threaded screw | 8 | 0.002 | | ::: | DB50 Feedthrough Connector for Vacuum Applications | 1 | 0.135 | | ::: | DB50 Male HIVAC Adapter for Vacuum Applications | 2 | 0.039 | | ::: | DB37 Feedthrough Connector for Vacuum Applications | 1 | 0.136 | | ::: | DB37 Male HIVAC Adapter for Vacuum Applications | 2 | 0.036 | | ::: | GN 581 Rotating Lifting Rings | 4 | 0.060 | | ::: | GN 851 Hook Toggle Clamps | 2 | 0.080 | | ::: | Hexagon socket button head screw M4x14 | 8 | 0.002 | | ::: | RS PRO Rubber Vibration Damper M10, Ø 85mm x 25mm, 40kg | 4 | 0.108 | | ::: | M7x14 Ultra-Low-Profile Socket Head Screw | 8 | 0.006 | | ::: | Articulating Constant Torque Hinge, Free Swinging, Bright | 2 | 0.111 | | ::: | M4x25 Hex socket flat countersunk head screw | 4 | 0.004 | | Total: ^| 51 | 24.909 | ^ 2nd Step ^ Cryostat Door ||| | ::: | Cryostat Door | 1 | 7.760 | | ::: | M5x25 Hex socket head cap screws fully threaded | 12 | 0.005 | | ::: | O-Ring ID 150 mm x 5.3 mm NBR 70 | 1 | 0.012 | | ::: | Door Cylindrical Flange | 1 | 0.842 | | ::: | M4 x 14 Hexagon socket button head screw | 4 | 0.002 | | ::: | GN 851 Hook Toggle Clamps Clips | 2 | 0.040 | | Total: ^| 21 | 8.763 | ^ 3rd Step ^ Cryo-Head Assembly ||| | ::: | M8x25 Hex socket head cap screws fully threaded, BN 610 | 8 | 0.018 | | ::: | Flat washers without chamfer, DIN 125, for M8 thread | 8 | 0.002 | | ::: | Tube 104 x 2 mm - 136.1 mm length, 304 stainless | 1 | 0.700 | | ::: | Mixed Refrigerant Gas Cryocooler - Mylar Wrapped | 1 | 3.900 | | ::: | ISO 100 Centering Ring with Outer Ring - 301062 | 1 | 0.068 | | ::: | ISO-F Welding Flange, ISO 100 - 301079 | 1 | 0.414 | | ::: | Cryo-Head Support Plane | 1 | 1.770 | | ::: | M6x25 Hex socket head cap screws fully threaded, ISO 4762 | 14 | 0.009 | | ::: | Flat washers without chamfer, DIN 125, for M6 thread | 14 | 0.001 | | ::: | 180 x 5 mm O-ring (5 mm diameter, 565 mm length) | 1 | 0.012 | | ::: | Cryostat Boody Assembly | 1 | 22.950 | | Total: ^| 51 | 30.119 | ^ 4th Step ^ Vacuum Interface Assembly ||| | ::: | Cryo-Head Assembly | 1 | 30.119 | | ::: | KF Tubulation, inner diameter 25 mm, 70 mm length | 1 | 0.109 | | ::: | KF Tubulation, inner diameter 50 mm, 70 mm length | 1 | 0.345 | | ::: | Vacuum Seal Cover | 1 | 3.090 | | ::: | M6x25 Hex socket head cap screws fully threaded, ISO 4762 | 16 | 0.009 | | ::: | Flat washers without chamfer, DIN 126, for M6 thread | 16 | 0.001 | | ::: | 254 x 5 mm O-Ring NBR 70 (5 mm diameter, 799 mm length) | 1 | 0.017 | | Total: ^| 37 | 33.846 | ^ 5th Step ^ Electronics Assembly ||| | ::: | Vacuum Interface Assembly | 1 | 33.846 | | ::: | Front-End Board Vertical Card Guide | 6 | 0.020 | | ::: | DAMIC Font-End electronics Board V2.0 | 4 | 0.050 | | ::: | Samtec Pass-through Board | 1 | 0.050 | | ::: | Board Passthrough External Flange | 1 | 0.232 | | ::: | Board Passthrough Internal Falge | 1 | 0.405 | | ::: | M4 x 20 Hex socket head cap screws fully threaded | 6 | 0.003 | | ::: | O-Ring ID 150 mm x 5.3 mm NBR 70 | 1 | 0.012 | | ::: | Viton Fluor-elastomer O-Ring, nominal 3½” x 3/32, Dash No, 153 | 2 | 0.003 | | ::: | M5x25 Hex socket head cap screws fully threaded | 12 | 0.005 | | Total: ^| 35 | 34.950 | ^ 6th Step ^ Cryo-Vessel Assembly ||| | ::: | Electronics Assembly | 1 | 34.950 | | ::: | Cryostat Door | 1 | 8.763 | | ::: | M5x25 Hex socket head cap screws fully threaded | 12 | 0.005 | | ::: | M4x25 Hex socket flat countersunk head screw | 4 | 0.004 | | ::: | Door Cylindrical Flange | 1 | 0.842 | | ::: | O-Ring ID 150 mm x 5.3 mm NBR 70 | 1 | 0.012 | | Total: ^| 20 | 44.645 | ^ 7th Step ^ Vacuum Fittings Assembly ||| | ::: | KF Elbow 90°, DN 25 | 1 | 0.116 | | ::: | KF Tees, DN25 | 2 | 0.187 | | ::: | KF Flange with Pipe Thread, Female, DN25, NPT-Internal Thread | 2 | 0.048 | | ::: | KF Centering Rings, O-Ring, DN25 | 6 | 0.011 | | ::: | KF Tension Ring for Elastomer Gasket, DN25 | 6 | 0.062 | | ::: | Low Pressure Proportional Relief Valve, 1/4 in. MNPT x 1/4 in. FNPT | 1 | 0.270 | | ::: | Bellows Sealed Valve, Welded, SS Stem Tip, 1/4 in. MNPT | 1 | 0.110 | | ::: | PKR 251, FPM-sealed, DN 25 ISO-KF | 1 | 0.700 | | Total: ^| 20 | 2.103 | ^ 8th Step ^ Vacuum Intake Assembly ||| | ::: | KF Elbow 90°, DN 50 | 1 | 0.364 | | ::: | KF Centering Rings, O-Ring, DN50 | 3 | 0.027 | | ::: | KF Tension Ring for Elastomer Gasket, DN50 | 3 | 0.157 | | ::: | Conical Reducer, ISO-KF Flange Size NW50 to NW40 | 1 | 0.062 | | ::: | Safety Valve, Pump Failure, NW50 ISO-KF, Vitron, 220 VAC 50/60 Hz | 1 | 1.800 | | Total: ^| 9 | 2.778 | ^ 9th Step ^ Cryostat Complete ||| | ::: | Cryo-Vessel Assembly | 1 | 44.645 | | ::: | Vacuum Fittings Assembly | 1 | 2.103 | | ::: | Vacuum Intake Assembly | 1 | 2.778 | | Total: ^| 3 | 49.526 | ^ 10th Step ^ Heater Assembly ||| | ::: | Arcol AP830 Festwiderstand 50Ω ±1% / 30W | 2 | 0.035 | | ::: | M6x6 Hex socket set screws with flat point | 2 | 0.001 | | ::: | Cryo-head Heater Attachment | 1 | 0.256 | | ::: | M3x8 Hex socket head cap screws fully threaded | 1 | 0.001 | | ::: | M3 Flat washers without chamfer | 1 | 0.001 | | ::: | Temperature Sensor Housing | 1 | 0.006 | | ::: | Platinum Resistance Pt100 Wire-Wound Detector Element, 28 mm | 1 | 0.005 | | Total: ^| 9 | 0.342 |