ITT_121341 - Cryo-free QHR Fridge
National Physical Laboratory
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Key details
Procurement
- 38000000 Laboratory, optical and precision equipments (excl. glasses)
What happened
National Physical Laboratory awarded this contract to Cryogenic Limited worth £159,600 on 20 Jan 2025. The contract runs until 4 Feb 2026.
Description
The National Physical Laboratory (NPL) requirement is for a refrigerator to house one of our Cryogenic Current Comparators (CCC). Currently the system is mounted in a dewar of helium to provide the necessary temperature, but this requires refilling periodically and we wish to move to a closed setup which does not need additional cryogens for sustained periods of operation.
The asset must therefore:
1) Allow the existing CCC components to be mounting in the cold space of the fridge. 2) Hold a steady temperature of 4 K or less for a sustained period. 3) Not require any additional liquid cryogens for cool-down or whilst running.
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External ID: cf-ocds-b5fd17-360b0146-6be5-4cdd-8895-11cc5ea3c1a1 • Added 3 October 2026