• Liquefaction Capacity
  • 35 l/h without LN2 pre-cooling
  • 70 l/h with LN2 pre-cooling

• Liquid Helium Storage Dewar
  • 5000l

 

• Capacity

  • two compressors with a maximum flow of 50m3/h each.
  • This capacity corresponds to an evaporation of 130 l/h of liquid helium.
  • Maximum pressure 200bar

• Storage Volume
  • 9 spheres of 3.75m3 each
  • The total capacity of the 9 spheres corresponds to 9000l of liquid helium
  • Maximum pressure 200bar

 

• Each laboratory connected to the helium recovery system is equipped with a recovery manifold composed by the following elements:
  • main entry valve
  • non-return valve
  • pressure guage
  • by-pass
  • gas coounter
  • manual recovery valves

When recovering important quantity of cold gas such that the recovery manifolds might freeze, the by-pass has to be used in order to avoid damaging the gas counter.

Mobile dewars

Type	Capacity	No.
RH38	38 [l]	6
RH65	65 [l]	20
RH100	100 [l]	10
RH250	250 [l]	1
RH450	450 [l]	2

It is important that the mobile dewars are returned for refilling at the earliset convenience due to the following reasons:

1. The number of dewars being finite, it is important that the operator has available the maximum number of dewars for preparing the orders placed by your colleagues (This is particularly true for the most demanded RH65 model).
2. If the operator has not available a dewar with a capacity equal to the amount of ordered helium, he will deliver in a different dewar type (larger or smaller) with the closest capacity corresponding to the ordered quantity
3. The mobile dewars should be returned cold (i.e. at Helium temperature) in order to minimize the outgassing during refilling

• A dedicated vehicle is used for transport of the dewars to the different

• The delivery of helium is done twice a week on Monday and Thursday morning between 8h-12h.

 

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