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Common Questions Asked When We Receive a Custom CMSH Liquid Helium Dewar Request

When receiving a request for a liquid helium dewar, there are always some routine questions that need to be asked in order for us to manufacture the dewar to meet customer expectations.

From one liquid helium dewar to another, there can be any number are differences based on how it’s going to be used. Any liquid helium dewar can be customized based on any or all of the following specifications:

How is this container going to be used?
Is it primarily for transport/storage, liquefaction or as an experimental dewar?

If experimental, do you require a larger neck than the standard 1.5” o.d.?

Are there any dimensional restraints?

Are there pressure requirements above 10 PSI?

What country will the dewar operate in?

Will this be used for transportation by air?

Is this incorporated into a product to be sold?

What performance do you need from the dewar to meet the requirements of your application?

Base or caster mounted? Outboard casters?

Outboard bracket casters & pull handle?

For Vessels above 250 liters are fork lift provisions required?

About the standard CMSH Series Liquid Helium Dewar.

Optional Add-Ons For a Liquid Helium Dewar

Once an application for a liquid helium dewar is established, we then might ask or offer optional additives. Including:

  • Is a liquid level gauge required?
  • Are locking casters preferred?
  • Do you need a custom access port?
  • For dewars used with cryocoolers and inserts would you like an auxiliary side neck so that your device can remain installed?
  • Outboard caster configuration
  • Other available options are:
    • Flow meter
    • Electric pressure builder
    • Build in VJ Withdrawal system
  • Liquid Nitrogen Dewar removable manifold

    Removable Manifold
  • Liquid Nitrogen Dewar electric pressure building systems

    Electric Pressure Building Systems
  • Liquid Nitrogen Dewar gravity feed port

    Gravity Feed Port
  • Liquid Nitrogen Dewartop vertical withdrawal

    Top Vertical Withdrawal
  • Liquid Nitrogen Dewar Dedicated Solenoid Port

    Dedicated Solenoid Port
  • Liquid Nitrogen Dewar Wing Nut Locking Casters

    Wing Nut Locking Casters
  • Liquid Nitrogen Dewar Pedal Locking Casters

    Pedal Locking Casters
  • liquid helium dewars differential pressure liquid level gauges
    Differential Pressure Liquid Level Gauges
  • liquid helium dewars super conducting liquid level systems
    Superconducting Liquid Level Systems
  • liquid helium dewars flow meters
    Flow Meters
  • liquid helium dewars electric pressure building systems
    Electric Pressure Building Systems
  • liquid helium dewars built-in vacuum jacketed withdrawal valve
    Absolute Relief Valve for Air Transport
  • liquid helium dewars built-in vacuum jacketed withdrawal valve
    Built-in Vacuum Jacketed Withdrawal Valve
  • liquid helium dewars larger neck openings
    Larger Neck Openings
  • liquid helium dewars auxiliary side neck
    Auxiliary Side Neck
  • liquid helium dewars fork lift provisions
    Fork Lift Provisions Available on Sizes 400 lt and up
  • liquid helium dewarsremoveable dollies
    Removable Dollies Sizes 30 lt to 100 lt
  • liquid helium dewars pull handles
    Pull Handles Available on Sizes 100 lt to 1000 lt
  • liquid-helium-dewars-pro13
    Outboard Wheel Configuration Sizes 30 lt to 150 lt, Optional Wing Lock or Pedal Lock

With the answers to the above questions in mind, you’re now prepared with all the information you need to begin submitting your request.

If you have any other questions about how the process works, please contact us. If you’re ready to begin, please submit your request here.

1.800.426.2186