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Standards and Technical Documents - Metallic materials -- Tensile testing in liquid helium -- ISO 19819:2004
Description: ISO 19819:2004 specifies the method of tensile testing of metallic materials in liquid helium (boiling point at - 269 °C or 4,2 K) and defines the mechanical properties that can be determined. ISO 19819:2004 may also apply to tensile testing at cryogenic temperatures (less than - 196 °C
Standards and Technical Documents - Superconductivity, Part 8: AC loss measurements, Total AC loss measurement of round superconducting wires exposed to a transverse alternating magnetic field at liquid helium temperature by a pickup... -- IEC 61788-8:2010
Description: of frequency up to the commercial level, 50/60 Hz, at liquid helium temperature. For the superconducting wires with fine filaments, the AC loss measured with the present method can be divided into the hysteresis loss in the individual filaments, the coupling loss among the filaments and the eddy current
Supplier: IHS Product Design
Description: METALLIC MATERIALS - TENSILE TESTING IN LIQUID HELIUM
Supplier: ASTM International
Description: Linear-Elastic Fracture of High-Nitrogen Austenitic Stainless Steels at Liquid Helium Temperature Volume 17, Issue 1 (January 1989) Four commercial Fe-Cr-Ni-Mn austenitic stainless steels containing 0.14, 0.26, 0.28, and 0.37 wt% N were fractured in liquid helium at 4 K, and measurements
Supplier: Oxford Instruments Industrial Analysis
Description: because it is compatible with many different cavities. The heat exchanger is fitted with a heater and Cernox temperature sensor. The CF935P can be used with either liquid helium or liquid nitrogen.
Description: at a significantly higher temperature than conventional superconductors, they are more energy-efficient, significantly reduce operating costs and are largely able to function without highly cooled and increasingly scarce liquid helium.
Supplier: M&I Materials Limited
Description: ; Schlenk lines; cold traps; liquid helium hoses and electron microscopes. Thermal Coupling Apiezon N Grease has a proven track record in improving thermal contact under cryogenic conditions. This is important for the coupling of cooling systems to superconducting magnets, cryostats, temperature sensors
Supplier: Master Bond, Inc.
Description: , but it is also able to withstand cryogenic shocks (i.e. room temperature down to liquid helium temperatures in a 5-10 minute time period). This optically clear, low viscosity cryogenic epoxy bonds well to a wide variety of substrates including metals, glass, ceramics, and many different plastics. The working
- Substrate / Material Compatibility: Ceramic / Glass, Concrete / Masonry, Metal, Plastic, Porous Surfaces, Rubber / Elastomer
- Industry: Aerospace, Electronics, Electrical Power / HV, Marine, OEM / Industrial, Semiconductors / IC Packaging, Other
- Chemical / Polymer System Type: Epoxy (EP)
- Cure Type / Technology: Two Component System, Specialty / Other
Supplier: OMEGA Engineering, Inc.
Description: Made entirely of PTFE, PFA, and PCTFE, the Model FL-10 liquid flow meter is excellent for high-purity flow measurement applications or use with corrosive liquids. These flowmeters are available with a standard valve to monitor and control flow or without a valve to just monitor flow. Flow meters
- Type: Differential Pressure Meter, Rotameter, Variable Area
- Pipe Diameter: 0.2500 to 0.7500 inch
- Media Temperature Range: 250 F
- Liquid Volumetric Flow Rate: 0.0 to 79.23 GPM
Supplier: Quantachrome Instruments
Description: with liquid nitrogen. Choose from two measurement techniques: Patented NOVA helium-free method or classical helium void volume method. Multiple gas dosing methods to optimize analysis time and resolution: 1. MaxiDose™ automatically adjusts dose size in response to sample demand; 2. Constant Dose
- Measurement Type: Size
- Sample Type: Powder / Solid Particles
- Particle Size Range: 3.50E-4 to 0.4000 µm
- Technology / Operating Principle: Other
Supplier: Brooks Instrument
Description: regulator for use with the following gases: air, argon, helium, hydrogen, krypton, neon, nitrogen, oxygen or xenon.
- Device Category: Controller, Other
- Sensor Technology: Piston
- Pressure Reading: Gauge
- Material to Measure: Liquid, Gas
Supplier: Haskel International, Inc.
Description: Double acting single stage model "AGD" boosters not only pump twice the volume of the above per cycle, but also require less air drive since the inlet gas pressure itself provides a substantial portion of the required driving force. These models provide efficient means of boosting large volumes of
- Type Of Pump: Booster Pumps
- Maximum Discharge Pressure: 1250 psi
- Power Source: Air / Pneumatic
- Industry: General Industrial, Commercial
Standards and Technical Documents - Detection of Hydrogen in a Helium Flow Stream with Thermal Protection Design Configurations for Cryogenic Conditions - ISA Automation Week 2011: Automation & Control Systems Design
Description: Helium is used as a purge gas for hydrogen rocket engine testing. The conservation of helium is essential due to it being a nonrenewable resource. A test fixture was developed to monitor the hydrogen content of a helium flow stream under potential two-phase cryogen flow conditions. Different
Standards and Technical Documents - THE PRACTICAL REFERENCE GUIDE FOR HIGH QUALITY FUSION WELDING OF ALUMINUM -- AWS PRGQASupplier: American Welding Society (AWS)
Description: . The guidelines were basically utilized for the following applications: • Grumman Aerospace – for mechanized gas tungsten arc welding (GTAW, DCEN) 2219 aluminum alloy for the Lunar Module for Project Apollo that landed men on the moon. These weldments required X-ray quality, helium leak-tight
Supplier: Rego Electronics Inc.
Description: Heat pipes are thermal super-conductors. The effective thermal conductivity varies with heat pipe length, and can approach 100,000 W/m K for long heat pipes, in comparison with approximately 400 W/m K for copper. At the hot interface of a heat pipe a liquid in contact with a thermally conductive
- Type: Cylindrical
- Total Length: 3.15 to 23.62 inch
- Diameter: 0.1181 to 0.3937 inch
- Container / Shell: Copper
Supplier: OMEGA Engineering, Inc.
Description: • All Stainless Steel Wetted Parts • Sensing Element Capsule, Electron Beam Welded • Helium Leak Tested 4 x 10-9 STD CC/sec • External Pressure Scale and Pointer For Easy Set Point Adjustment • Available with 1/4 VCR Male or 1/8-27 NPT Male Fittings • NEMA 4
- Switch Point Range: 0.8000 to 500 psi
- Deadband: 0.5000 to 15 psi
- Vacuum Switch Set point Range: 1.6 to 28.2 in Hg vac
- Vacuum Deadband: 1.1 to 1.2 in Hg vac
Supplier: Clark Solutions
Description: movement. Our flow meters are suited to a wide range of applications where affordability, reliability and ruggedness are important considerations. Liquid flow meters are suitable for potable and nonpotable water, irrigation water, glycol-water mixtures, fuel oils, lubricating oils, gasoline and many
- Type: Differential Pressure Meter, Orifice Plate
- Pipe Diameter: 0.2500 to 8 inch
- Media Temperature Range: -30 to 350 F
- Liquid Volumetric Flow Rate: 2 to 500 GPM
Supplier: Wasco, Inc.
Description: of the sensors (listed below). This offers the possibility to set for redundancy or any pressure difference within the range. Features: All Stainless Steel (wetted) Sensor All Welded Construction Leak tested and Certified to 1X10-9 cc per sec. Helium Finely Finished (wetted) Surfaces to Reduce
- Switch Point Range: 1 to 30 psi
- Deadband: 0.7000 to 2.3 psi
- Accuracy: 0.7000 ±% FS
- Operating Temperature: -10 to 125 F
Description: at the following leak rates: Minimum Detectable Gas Limits and Indicating LED Color: Helium, 1.0 x 10-5, red LED Hydrogen*, 1.0 x 10-5, red LED Nitrogen, 1.4 x 10-3, yellow LED Argon, 1.0 x 10-4, yellow LED Carbon dioxide, 1.0 x 10-4, yellow LED Gas detection limits measured in atm cc/sec. Avoid using liquid
- Instrument Type: Detector
- Mounting Type: Portable
- Number of Gases Sensed: Multi Gas
- Specific Gas Types: Carbon Dioxide (CO2), Hydrogen (H2), Other
Supplier: Schutte & Koerting
Description: Fig. 265 Exhausters and Compressors provide higher discharge pressures and higher suction flow capacities than other standard exhausters. Designed for liquid pumping and mixing operations and for handling some solids where requirements do not necessitate capacities greater than those obtained
- Compressor Technology: Other
- Inlet Temperature: 0.0 to 200 F
- Inlet / Suction Pressure: 25 to 760 psi
- Discharge / Operating Pressure: 0.0 to 10 psi
Supplier: MicroSense, LLC
Description: is equally suitable measurement system for samples with high coercivities because of it’s high maximum field. This VSM model can measure liquid, powder, solid, bulk, and thin film samples and is supplied with sample holders for all these types of samples. The excellent real world low noise
- Technology: Magnetoresistive, Other
- Form Factor: Desktop / Module
- Measurement Features: Direction Measurement, Magnitude Measurement
- Number of Axes: 1
Description: Flowtubes for helium Flow rate: 65 (mL/min) Material: float Stainless Steel Flow Tube Borosilicate Media: helium Type: 65-mm flowtube
Safety Clothing - GLOVES - Leather, Cold/Abrasion Resistant, Cryo-Gloves®, Waterproof, X-Large -- 1160128Supplier: Wilkem Scientific
Description: as the 13-1030 gloves (ultra cold to @sp(endash)160°C and heat to +150°C; For use in LN2 and cryogenic atmospheres, liquid oxygen, liquid helium, liquefied natural gas (LNG). For use be use in low-temp freezers, walk-in-freezers and cold rooms, handling dry ice, ovens and autoclaves. Sold
- Clothing Type: Gloves
- Application: Waterproof
- Material: Leather
Supplier: Fisher Scientific
Description: Breathable, stay-dry lining Ideal for use in cryogenic atmospheres (such as liquid nitrogen, oxygen or helium; liquified natural gas; dry ice; liquid baths; or blast freezers) where organs, blood units, pharmaceuticals, or specimens are frozen. Alert: Not for immersion in liquid nitrogen or for use
- Clothing Type: Gloves
- Application: Cryogen
- Industry: Pharmaceutical/Medical
Supplier: Small Parts, Inc.
Description: Kapton(R) polyimide film is an extremely strong, spiral wound transparent amber film that retains its high dielectric strength over a very wide range of temperatures. It remains flexible at liquid helium temperature minus 269 Degrees C and does not lose its strength until it reaches a temperature
- Material Choices: Plastic Tubing
- Design Units: English
- Maximum Inside Diameter / Size: 0.3750 inch
- Wall Thickness: 0.0050 inch
Supplier: Hydraulic Institute (HI)
Description: viscosity Analytical approaches to slurries Calculating water friction loss Friction loss of paper stock Nozzle friction loss Characteristics of steel, iron, non-ferrous, and plastic piping, plus information on flanges Vapor pressure of liquid hydrogen and helium, and scores of other compounds
Supplier: United Refrigeration, Inc.
Description: fan motor Receiver with fusible plug and liquid shut off valve Adjustable dual high / low pressure control Suction service valve Pre-formed copper tubing Unit leak tested and shipped with helium holding charge Models include liquid line filter drier, sight glass and defrost control kit
- Condenser Type: HVAC Condensing Unit
- Condenser Application: Refrigeration
- Turbine Power Output: 3 HP
- Refrigerant Capacity: 22 lbs
Description: Cole-Parmer® Direct Reading PTFE-Glass Flowmeter, 150-mm, with valve, Helium, 1025 scfh Accuracy: &177;5% of full scale Connections: 1/8"NPT(F); optional 1/4" compression fittings or glass nipples available upon request. Flow rate: 1025 scfh Leak integrity: Meters are individually tested
- Operating Temperature: 0.0 to 150 F
Description: Multi-Media Valve 2-Way NC, 1/8" NPT(F), 24VDC, 100 psi max Offer outstanding potential for precision control in liquid and gas analysis High speedemdashtypical response time is 5ms Maximum pressure up to 1250 psi Constructed of noncorroding, passivated stainless steel Leak tight to 1 x 107 cc
Supplier: U.S. Alloy Co.
Description: Specifications AWS A5.16-90 Class ERTi-5ELI (formerly AWS A5.16-70 Class ERTi-6AL-4V-1) AMS 4956C Shielding Gas Argon is the recommended shielding gas, however an argon-helium mixture will give greater penetration although at the expense of arc stability. Description Washington Alloy 6AL/4V ELI
Supplier: NOSHOK, Inc.
Description: Designed for use with differential pressure transmitters in liquid level applications Available in either single flange or double flange connection for direct installation All manifold bodies are machined from cold drawn extrusion allowing NOSHOK to hold tighter tolerances 100% helium leak
- Supply Ports: 1
- Outlet Ports: 1
- Port Type: NPT
- Port Size: 1/2"
Supplier: Cole-Parmer Instrument Company
Description: Offer outstanding potential for precision control in liquid and gas analysis High speedâ€"typical response time is <5 msec Maximum pressure up to 1250 psi Constructed of noncorroding, passivated stainless steel Leak tight to 1 x 10-7 cc/sec/atm Helium These rugged valves operate
- Pressure Rating: 1250 psi
- Power: 24 volts
Supplier: Velan, Inc.
Description: Severe service control valves for extreme temperature applications. Features and benefits SERVICE RANGE: • Temperature: -457.6 to 176°F (-272 to 80°C) VALVE FUNCTION: • Protect the superfluid helium enclosures of superconducting magnets against over-pressure resulting from
- Valve Type: Butterfly Valves
- Cryogenic Valves: Yes
- Valve Size: 1.5 inch
- Connection: Butt Weld
Supplier: MAXPRO Technologies, Inc.
Description: and economical operation. Gas booster systems are capable of compressing most gases including nitrogen, argon, helium and hydrogen up to 20,000 psi. Systems featuring special seals and cleaning can pressurize oxygen to 5,000 psi. All MAXPRO systems for use with hazardous gases are modified to ensure
- Drive Type: Pneumatic
- Maximum Output Pressure: 3000 to 15000 psi
- Fluid Compatibility: Gas
Supplier: NETZSCH-Gerätebau GmbH
Description: TG-GC-MS Coupling GC is a high-resolution method for separating volatile and semi-volatile compounds. The gas mixtures are separated based on the differences in component distribution between a stationary phase (e.g. inner coating of a capillary) and a mobile phase (purge gas, e.g. helium). Since
- Mass Analyzer Design: Other
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Featured Products for Liquid Helium Top
Haskel International, Inc.
Custom Liquid and Gas Systems
Haskel can custom-build portable-to-large PLC control systems for a wide range of industries and applications. Manufacturing Divisions have cleanroom facilities for oxygen and similar requirements to 1000-level clean. Portable pressure test packs. Pressure, proof, leak, burst, fatigue testing of hydraulic, gas, refrigerant, automotive hose and rigid pipes pressure and functional testing of valves. Volumetric stretch testing of gas containers. Helium leak detection of refrigerant and air... (read more)
Browse Gas Compressors and Gas Compressor Systems Datasheets for Haskel International, Inc.
Valcor Engineering Corporation
Cryogenic Solenoid Valves
for such applications as high volume cryogenic transfer, thermal chambers, and bleed valve. '. Our second product group is our SV95 and SV97 series. These are poppet style valves used for high cycle application. These valves employ Valcor proprietary constant load Teflon or PFA seal disk that insures bubble tight shut off. Valcor offers the following features in our Cryogenic line: Suitable for liquid CO2, liquid methane, liquid oxygen, liquid nitrogen, liquid hydrogen, and liquid Helium. Normally open... (read more)
Browse Solenoid Valves Datasheets for Valcor Engineering Corporation
Master Bond, Inc.
New Epoxy Serviceable At Cryogenic Temperatures
Master Bond EP29LPSP has a mix ratio of 100 to 65 by weight. It cures at room temperatures, but best results are obtained if heat cured at 130-165°F for 6-8 hours. EP29LPSP features superior physical strength properties and excellent chemical resistance. It bonds well to a variety of substrates including metals, glass, ceramics and many different plastics. When curing, EP29LPSP has a low exotherm. EP29LPSP has a low viscosity and is easy to apply. Its mixed viscosity is 400 cps. It has a tensile... (read more)
Browse Epoxy Adhesives Datasheets for Master Bond, Inc.
Valcor Engineering Corporation
Cryogenic Solenoid Valves Control Cold Cash
and liquid Helium. Normally open and normally closed models available. Fluid temperature range from -450 °F to 400 °F (model dependant). All Stainless Steel welded construction. SV91 high flow/high pressure venturi models available- consult factory for details. Customized solutions are our specialty. Learn more by visiting our website HERE... (read more)
Browse Cryogenic Equipment Datasheets for Valcor Engineering Corporation
Valcor Engineering Corporation
Custom Solenoid Valves
line: Suitable for liquid CO2, liquid methane, liquid oxygen, liquid nitrogen, liquid hydrogen, and liquid Helium. Normally open and normally closed models available. Fluid temperature range from –450 °F to 400 °F (model dependant). All Stainless Steel welded construction. • SV91 high flow/high pressure venturi models available- consult factory for details. Customized solutions are our specialty. . To discuss a customized solution for your application please contact us... (read more)
Browse Solenoid Valves Datasheets for Valcor Engineering Corporation
Oxford Instruments Industrial Analysis
Rapid fatty acid composition analysis using Pulsar
and it presents results clearly and directly. Pulsar does not require liquid helium, liquid nitrogen, or compressed gases, and can be operated in a normal laboratory environment without any special health and safety considerations. Email: email@example.com or Phone: 800-447-4717 or 978-369-9933. Visit our website for more information: http://www.oxford-instruments.com/fatty-acid-analysis... (read more)
Browse NMR Spectrometers Datasheets for Oxford Instruments Industrial Analysis
M&I Materials Limited
Cryogenic vacuum greases
to frequent thermal cycling, withstanding cycling between temperatures as extreme as -273 °C and +30 °C. Its unique properties mean N Grease is widely used to create reliable vacuum and pressure-tight seals in, amongst others: vacuum lines; cold taps; Schlenk lines; liquid helium hoses and electron microscopes. Thermal Coupling. Apiezon N Grease has a proven track record in improving thermal contact under cryogenic conditions. This is important for the coupling of cooling... (read more)
Browse Vacuum Greases and Vacuum Pump Oils Datasheets for M&I Materials Limited
Flow Meters...Enhanced Direct Reading Scales
Aalborg ®'s Direct Reading Flow Tube Scales for Models P, S, and T Flow Meters are designed exclusively for a specific gas or liquid at a given temperature and pressure valid only for the associated units of flow. These units offer solutions to low flow range measurements. Easy to read flow rates for a specified set of parameters are clearly indicated in specific engineering units, such as mL/min or scfh. Flow meters with these scales are more user-friendly. The inconvenience... (read more)
Browse Flow Meters Datasheets for Aalborg Instruments
Rego Electronics Inc.
Heat pipes are thermal super-conductors. The effective thermal conductivity varies with heat pipe length, and can approach 100,000 W/m K for long heat pipes, in comparison with approximately 400 W/m K for copper. At the hot interface of a heat pipe a liquid in contact with a thermally conductive solid surface turns into a vapor by absorbing heat from that surface. Vapor then travels along the heat pipe to the cold interface and condenses back into liquid - releasing the latent heat. Liquid... (read more)
Browse Heat Pipes Datasheets for Rego Electronics Inc.
Shimadzu Scientific Instruments, Inc.
Tracera Gas Chromatograph
degrees Celsius) supports safe, flame-free analysis of high-boiling-point liquid samples, as well as gas samples. The architecture of the BID was designed such that the plasma generation zone is maintained near room temperature. The electrodes are positioned where they do not contact directly with the plasma. This robust design does not require routine maintenance or consumables. Additionally, analytes remain intact post-analysis for other possible uses. (read more)
Browse Gas Chromatographs Datasheets for Shimadzu Scientific Instruments, Inc.
Conduct Research Top
Wired 8.08: A Helium Shortage?
welding (helium creates an inert atmosphere around the flame) and leak detection (hydrogen has a smaller atom, but it usually forms a diatomic molecule, H2). NASA uses it to pressurize space shuttle fuel tanks: The Kennedy Space Center alone uses more than 75 million cubic feet annually. Liquid helium
Liquid Cooling a Laser for System Optimization
systems, cold plates, and heat exchangers are a few of the cooling technologies used in laser systems' liquid cooling loops. Low-powered lasers, such as small helium-neon or argon-ion lasers, may not require cooling or may come with their own cooling fan, which is generally sufficient. Some smaller
Wired 12.04: The God Particle and the Grid
detector, part of the Large Hadron Collider now under construction at CERN, the famed European particle physics lab outside Geneva. When the LHC is finished in 2007, it will be the largest accelerator in the world. Massive superconducting magnets cooled to near absolute zero by liquid helium
MICRO: Eigler Interview
affair. My tour coincided with an experiment that he and his colleagues were performing using one of the two liquid-helium-temperature scanning tunneling microscopes (STMs) that populate their tight quarters. Under high vacuum, the microscopes are cooled to very low temperatures with liquid helium
Monitoring residual and process gases in PVD processes: The importance of sensitivity How much quadrupole mass analyzer sensitivity should be required for meaningful monitoring of residual gas levels in sputter deposition processes?
of dedicated test wafers. However, it has been found that these tests are not sensitive enough to detect films with marginal electromigration resistance. Resistivity ratio measurements (at room temperature and at liquid nitrogen or liquid helium temperature) are more sensitive but time consuming
Medical Device Link .
connectors are available that will seal over the ends of these types of catheters (Figure 3). Alternatively, high-pressure helium can be used within the device, but this can be an expensive testing method for high-volume products unless the helium is reused or reclaimed in some way. Liquid
Medical Device Link .
, gross-leak detection has been performed by placing the test device in a liquid perfluorocarbon (PFC) bath, using a PFC with a low boiling point. (Historically this test used chlorofluorocarbons, or CFCs. Use of CFCs in this test process has been largely replaced by the use of chemically similar
Medical Device Link .
rates that exceed 70 C per minute. The liquid-nitrogen-cooled chamber features high volume and adjustable air distribution to direct airflow rapidly over the product. Access to the internal chamber is provided through doors on the front and back of the unit. The vibration system uses a thermal
More Information on: Liquid Helium Top
Greater emphasis is now being placed on low- temperature cryogenics, particularly that of liquid helium .
Matter and Methods at Low Temperatures
Liquid Helium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optical investigation of impurities in superfluid4 He
The implanted particles act as micro-probes for the liquid helium andform complex defect structures--known as bubbles and snowballs.
Optical Investigation of Impurities in Superfluid 4 He
The implanted particles act as micro-probes for the liquid helium and form complex defect structures—known as bubbles and snowballs.
Structure and excitations of liquid helium
Structure and excitations of liquid helium .
A liquid helium target system for a measurement of parity violation in
neutron spin rotation
A liquid helium target system for a measurement of parity violation in neutron spin rotation .
Case Studies in Superconducting Magnets
Liquid helium heat transfer coeﬃcients . . . . . . . . . . . . .
Introduction to High-Temperature Superconductivity
The cost of running a supercon- ducting persistent current loop is simply the cost ofrefrigeration, which in most cases means the cost of purchasing liquid helium —about $7 per liter.