# ITT\_121341 - Cryo-free QHR Fridge

> A sourced UK public sector contract award published by National Physical Laboratory.

## Key facts

- Buyer: [National Physical Laboratory](/buyers/national-physical-laboratory/contract-awards)
- Supplier: Cryogenic Limited
- Award value: £159,600
- Tender value: £159,600
- Award date: 20 January 2025
- Published: 10 February 2025
- Contract start: 5 February 2025
- Contract end: 4 February 2026
- Stage: awarded
- Procurement category: goods
- Notice ID: 626e69a7-7d92-45d4-8f65-6cd79b3175d9-824997
- OCID: ocds-b5fd17-360b0146-6be5-4cdd-8895-11cc5ea3c1a1

## 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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## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/626e69a7-7d92-45d4-8f65-6cd79b3175d9-824997)