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Split Butterfly Valve for Powder Transfer Applications

NATIONAL NUCLEAR LABORATORY LIMITED

This public procurement record has 1 release in its history.

Planning

09 Oct 2026 at 14:34

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

United Kingdom National Nuclear Laboratory Limited (UKNNL) intends to procure a split butterfly valve system for handling and transferring powders, including quick connection and disconnection. The equipment must accommodate a 100 mm connection reducing to either 50 mm or 80 mm, with the 80 mm option intended to reduce the risk of product blockage. It must be compatible with hydrofluoric acid at approximately 25–50% concentration, operate at temperatures up to approximately 300°C, and withstand pressures from full vacuum to approximately 3 barg. Sealing materials must be chemically resistant to hydrofluoric acid at the process concentrations. An integrated vacuum system to clear powder from the valve faces is not required. The buyer is UKNNL, and the delivery location is in the United Kingdom.

This procurement is at the planning stage: UKNNL has set out an intention to buy and is seeking supplier input before issuing an invitation to tender. The buyer expects the contract period to run from 1 December 2026 to 30 April 2027. The planning information describes one lot and marks it as suitable for small and medium-sized enterprises. It gives no procurement procedure, evaluation criteria, or estimated contract value. UKNNL welcomes information from suppliers about available equipment and whether they have supplied similar equipment before. The buyer's stated date for this market-engagement milestone is 23 October 2026; this is an expected date for supplier engagement, not a bid deadline. The engagement is intended to inform the planned procurement rather than invite bids.

This is most relevant to manufacturers, distributors and specialist valve suppliers with products for powder transfer and quick-connect/disconnect operations, particularly those with experience supplying equipment for corrosive chemical service. Suppliers should be able to demonstrate compatibility with hydrofluoric acid at the stated concentrations, including the chemical resistance and suitability of sealing materials. Their equipment should also meet the demanding temperature and pressure envelope and provide one of the specified connection arrangements. Stainless steel and other alternative construction materials may be considered, so suppliers with suitable material options could contribute to the buyer's market assessment. UKNNL specifically asks suppliers to describe what equipment they can provide and whether they have supplied similar equipment before. This is an opportunity to inform the specification and prepare for a later competition, not to submit a tender now.

How relevant is this notice?

Notice Information

Notice Title

Split Butterfly Valve for Powder Transfer Applications

Notice Description

UKNNL are seeking expressions of interest from suppliers capable of providing a split butterfly valve system suitable for powder handling and transfer operations. Minimum Technical Requirements * Be suitable for the transfer of powders and quick-connect/disconnect operations. * Accommodate connections in the region of: -100 mm to 50 mm diameter, or -100 mm to 80 mm diameter to minimise the potential for product blockage. * Be compatible with hydrofluoric acid (HF Resistant) at concentrations of approximately 25-50% by mass. * Be suitable for operating temperatures up to approximately 300degC. * Be suitable for operating pressures from full vacuum to approximately 3 barg. Additional Information * An integrated vacuum system for removal of powder from between split butterfly valve faces is not required. * Alternative materials of construction may be considered such as stainless steel. * Particular attention should be given to the suitability and chemical resistance of sealing materials for hydrofluoric acid service. * Sealing materials must be suitable for hydrofluoric acid (HF) at the specified process concentrations.

Planning Information

UKNNL welcomes information from suppliers on what you have available and if suppliers have supplied similar equipment before. If you are able to supply this piece of equipment listed please get in touch with Brad.Marsland@uknnl.com

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-0784e0
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/095720-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Standard
Procurement Category
Goods
Procurement Method
Not Specified
Procurement Method Details
Not specified
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

42 - Industrial machinery

CPV Codes

42131200 - Valves defined by construction

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
9 Oct 20263 days ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
1 Dec 2026 - 1 May 2027 1-6 months
Recurrence
Not specified

Notice Status

Tender Status
Planning
Lots Status
Planning
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
NATIONAL NUCLEAR LABORATORY LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
WARRINGTON
Postcode
WA3 6AE
Postcode Area
Warrington
Country
England
Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD6 Cheshire
Small Region (ITL 3)
TLD61 Warrington
Delivery Location
Not specified
Local Authority
Warrington
Electoral Ward
Birchwood
Westminster Constituency
Warrington North

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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