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PROCUREMENT OPPORTUNITY

Supply of Flask Seals, Gaskets & 'O' Rings

Sellafield Limited · award, contract

Tender information last checkedLast checked 3 Oct 2026, 08:52.

Opportunity overview

Supply of Nuclear Transport Flask Specialised Seals, Gaskets & 'O' Rings, to enable the repair and maintenance of the internal & external nuclear waste transport flasks. This will enable the continued support of the various maintenance programmes throughout the plant.

Awarded to

Amounts belong to published awards or contracts. Where several suppliers share one value, it is labelled as shared and is not a supplier-specific allocation.

James Walker UK Ltd

Matched by exact name
Contract value
£400k
Awarded
Not supplied
Contract signed
12 Mar 2026
Award ID
029204-2026-1
Status
active
Identifier
07393831
Location
Crewe, UKD, CW1 6XB, United Kingdom

Classification

  • CPV34312500 — Gaskets
  • CPV35121500 — Seals

Lots

  • This will be the Supply of Nuclear Transport Flask Specialised Seals, Gaskets & 'O' Rings, to enable the repair and maintenance of the internal & external nuclear waste transport flasks., to drawings and specifications developed over many years. This will enable the continued support of the various transport flask maintenance programmes throughout the plant and assist with the long term Sellafield mission. <br/><br/>Sellafield are using a known supplier who over many years has demonstrated their capability to meet Sellafield requirements in relation to the complex technical and quality aspects of goods supplied. Transition to any new supplier would risk continuity of critical goods supply in onboarding a new supply to the required standards, and possible delays from such. They produce quality plans/ITP’s for all in house and subcontract procedures required for manufactured items to the required standards This award under 32 (2)(b)PCR 2015 Regulations will ensure there is a secure source of critical flask spares, for the duration of the agreement.Value not stated

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
C23980
Status
complete
Main Procurement Category
goods
Procurement Method
limited
Procurement Method Details
Award procedure without prior publication of a call for competition
Why this procedure was chosen
The supply of critical spares is required for the maintenance and repair of nuclear transport flasks. They are extremely important to maintaining our contract with our customer. Each flask received generates revenue, which can then be used to fund other clean-up and decommissioning activities across the Estate. Regulation 32 (2)(b)PCR 2015 applies due to various technical complexities of scope, and quality requirements involved with the supply of these critical items.<br/>The maintenance and repair of flasks & flask transport flasks is essential to the servicing of the suite of contracts in place between our client and the NDA. Due to the ad hoc nature of these requirements, it is difficult to ascertain trends with regards to predictions for all these spares. Sellafield Ltd requires suppliers to be capable of providing the Seals, Gaskets and 'O' Rings required up to CQR Quality Grade 1 in accordance with SLM 4.06.02 Contract Quality Requirements Manual. The contract is of high risk if spares stockouts lead to the unavailability of the flasks. Many of the spares are Quality Grade 01 and 02 and the suppliers for the flasks spares need to be approved by SL Quality and added to their Quality Approved Suppliers List (QASL). They produce quality plans/ITP’s for all in house and subcontract procedures required for manufactured items. James Walker are a long standing supplier who has demonstrated their ability to meet both Sellafield technical and quality standards on these items over many years, with developed technical information regards material suitability, longevity, radiological suitability etc. A change in supplier would result in delays to maintenance and repair services on flask containers, our customer being unable to meet it's obligations , and loss of power generation. and would require approval from our customer.

Legal basis

Id
32014L0024
Scheme
CELEX

Classification

Scheme
CPV
Id
34312500
Description
Gaskets

Covered By

GPA

Procedure reasons

Entry 1
Scheme
TED_PT_AWARD_CONTRACT_WITHOUT_CALL
Id
D_TECHNICAL
Description
The works, supplies or services can be provided only by a particular economic operator due to absence of competition for technical reasons

Lots and requirements

Entry 1
Id
1
Description
This will be the Supply of Nuclear Transport Flask Specialised Seals, Gaskets & 'O' Rings, to enable the repair and maintenance of the internal & external nuclear waste transport flasks., to drawings and specifications developed over many years. This will enable the continued support of the various transport flask maintenance programmes throughout the plant and assist with the long term Sellafield mission. <br/><br/>Sellafield are using a known supplier who over many years has demonstrated their capability to meet Sellafield requirements in relation to the complex technical and quality aspects of goods supplied. Transition to any new supplier would risk continuity of critical goods supply in onboarding a new supply to the required standards, and possible delays from such. They produce quality plans/ITP’s for all in house and subcontract procedures required for manufactured items to the required standards This award under 32 (2)(b)PCR 2015 Regulations will ensure there is a secure source of critical flask spares, for the duration of the agreement.
Has Options
No
Status
cancelled

Award criteria

Criteria

Criterion 1
Type
price

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
35121500
Description
Seals

Delivery locations

Entry 1
Region
UKD

Delivery Location

Description
Cockermouth

Buyer, suppliers and contacts

Organisation 1
Name
Sellafield Limited
Id
GB-FTS-146205

Identifier

Legal Name
Sellafield Limited
Id
01002607

Address

Street Address
Hinton House, Birchwood Park Avenue
Locality
Warrington
Region
UKD1
Postal Code
WA3 6GR
Country Name
United Kingdom

Contact

Name
Mandy Murray
Telephone
+44 192583200

Roles

buyer

Details

Classifications

Entry 1
Scheme
TED_CA_TYPE
Id
BODY_PUBLIC
Description
Body governed by public law
Entry 2
Scheme
COFOG
Description
Nuclear De-commissioning
Organisation 2
Name
James Walker UK Ltd
Id
GB-FTS-178910

Identifier

Legal Name
James Walker UK Ltd
Id
07393831

Address

Street Address
2nd Floor, Gawsworth House Westmere Drive Crewe Cheshire
Locality
Crewe
Region
UKD
Postal Code
CW1 6XB
Country Name
United Kingdom

Roles

supplier

Details

Scale
large
Organisation 3
Name
Royal Courts Of Justice
Id
GB-FTS-6953

Identifier

Legal Name
Royal Courts Of Justice

Address

Street Address
Strand
Locality
London
Postal Code
WC2A 2LL
Country Name
United Kingdom

Contact

Roles

reviewBody
mediationBody

Details

Award information

Award 1
Id
029204-2026-1
Status
active

Related lots

1

Suppliers

Supplier 1
Id
GB-FTS-178910
Name
James Walker UK Ltd

Contracts and changes

Entry 1
Id
029204-2026-1
Award ID
029204-2026-1
Status
active
Date Signed
12 Mar 2026, 00:00

Value

Amount
400,000
Currency
GBP

Recorded locations

  • Buyer location · Warrington · UKD1 · WA3 6GR · United Kingdom
  • Delivery location · UKD

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. 029204-2026award, contract ·