✓Tender information last checkedLast checked 9 Oct 2026, 15:44.
Opportunity overview
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 300°C.
• 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.
Classification
CPV42131200 — Valves defined by construction
Lots
Lot 1Value not stated
Documents and notices
Preliminary market engagement notice on Find a TenderOpen source ↗
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.
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
Due
24 Oct 2026, 00:59
Status
scheduled
Documents
Entry 1
Id
095720-2026
Document Type
marketEngagementNotice
Notice Type
UK2
Description
Preliminary market engagement notice on Find a Tender
1 published notice version reviewed by ProcuraAxis.
1 VERSION
1
095720-2026Preliminary market engagement notice on Find a Tender ·
PROCURAAXIS ANALYSIS
ProcuraAxis Analysis
Our approved analysis of the opportunity appears below the official tender information.
ANALYSIS PREVIEW
Opportunity intelligence at a glance
Early-stage market engagement by UK National Nuclear Laboratory for suppliers able to provide a split butterfly valve system for powder transfer, including hydrofluoric-acid-resistant sealing materials.
Who this may suit
Potential fit for manufacturers or suppliers of chemical-resistant powder-handling split butterfly valves able to support HF service, temperatures up to about 300°C, and vacuum to 3 barg operation. This is not an open tender; supplier participation and submission requirements are unknown.
Key points identified
System typeSplit butterfly valve system for powder handling and transfer, with quick-connect/disconnect capability.Evidence: “split butterfly valve system suitable for powder handling and transfer operations” and “suitable for the transfer of powders and quick-connect/disconnect operations.”
Connection sizesAccommodate connections stated as approximately 100 mm to 50 mm diameter, or 100 mm to 80 mm diameter, to minimise blockage potential.Evidence: “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.”
Chemical compatibilityCompatible with hydrofluoric acid at approximately 25–50% by mass.Evidence: “Be compatible with hydrofluoric acid (HF Resistant) at concentrations of approximately 25-50% by mass.”
96% approved-analysis confidence11 supplier criteria identified4 risks or unknowns
ProcuraAxis structures information found in published procurement records, checks the result for consistency and publishes only approved analysis. Confidence describes the completeness and consistency of the available source information; it is not a guarantee of eligibility or contract award.
Early-stage market engagement by UK National Nuclear Laboratory for suppliers able to provide a split butterfly valve system for powder transfer, including hydrofluoric-acid-resistant sealing materials.
Who this may suit
Potential fit for manufacturers or suppliers of chemical-resistant powder-handling split butterfly valves able to support HF service, temperatures up to about 300°C, and vacuum to 3 barg operation. This is not an open tender; supplier participation and submission requirements are unknown.
Key deliverables
Split butterfly valve system for powder handling and transfer
HF-resistant sealing materials suitable for approximately 25–50% HF by mass
Connection arrangement suitable for the stated approximate diameters
Operation from full vacuum to approximately 3 barg and up to approximately 300°C
SUPPLIER REQUIREMENTS
11 criteria identified
System type
99% confidence
Split butterfly valve system for powder handling and transfer, with quick-connect/disconnect capability.
View supporting evidence
“split butterfly valve system suitable for powder handling and transfer operations” and “suitable for the transfer of powders and quick-connect/disconnect operations.”
Connection sizes
90% confidence
Accommodate connections stated as approximately 100 mm to 50 mm diameter, or 100 mm to 80 mm diameter, to minimise blockage potential.
View supporting evidence
“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.”
Chemical compatibility
99% confidence
Compatible with hydrofluoric acid at approximately 25–50% by mass.
View supporting evidence
“Be compatible with hydrofluoric acid (HF Resistant) at concentrations of approximately 25-50% by mass.”
Temperature rating
99% confidence
Suitable for operating temperatures up to approximately 300°C.
View supporting evidence
“Be suitable for operating temperatures up to approximately 300°C.”
Pressure rating
99% confidence
Suitable for pressures from full vacuum to approximately 3 barg.
View supporting evidence
“Be suitable for operating pressures from full vacuum to approximately 3 barg.”
Seal material requirement
99% confidence
Sealing materials must be suitable and chemically resistant for HF at the specified process concentrations.
View supporting evidence
“Particular attention should be given to the suitability and chemical resistance of sealing materials for hydrofluoric acid service” and “Sealing materials must be suitable for hydrofluoric acid (HF) at the specified process concentrations.”
Vacuum powder-removal system
99% confidence
An integrated vacuum system to remove powder between valve faces is not required.
View supporting evidence
“An integrated vacuum system for removal of powder from between split butterfly valve faces is not required.”
Materials of construction
93% confidence
Alternative materials of construction, including stainless steel, may be considered.
View supporting evidence
“Alternative materials of construction may be considered such as stainless steel.”
Supplier eligibility
98% confidence
Unknown.
View supporting evidence
The preliminary market engagement notice does not state supplier eligibility, financial standing, insurance, security, company-size, or geographic eligibility requirements.
SME suitability
99% confidence
Unknown.
View supporting evidence
The source field for SME suitability is null.
VCSE suitability
99% confidence
Unknown.
View supporting evidence
The source field for VCSE suitability is null.
COMMERCIAL AND DELIVERY
Contract intelligence
Commercial
Contract value
99% confidence
Unknown.
View supporting evidence
No minimum or maximum value or currency is supplied.
Commercial terms
98% confidence
Unknown.
View supporting evidence
No pricing model, contract terms, payment terms, or warranty requirements are stated in the market-engagement notice.
Delivery
Delivery location
94% confidence
United Kingdom.
View supporting evidence
The delivery location is recorded as region “UK”, country “United Kingdom”.
Buyer location
99% confidence
Warrington, WA3 6AE, United Kingdom.
View supporting evidence
Buyer location is recorded as Warrington, UKD61, WA3 6AE.
Delivery timetable
99% confidence
Unknown.
View supporting evidence
No contract start date, contract end date, or delivery schedule is supplied.
PROCEDURE
How to respond
Opportunity status
99% confidence
Upcoming / planning; early-stage preliminary market engagement, not an open tender.
View supporting evidence
Display status is “upcoming”, stage and source status are “planning”, and notice type is “Preliminary market engagement notice on Find a Tender”.
Procurement route
99% confidence
Unknown.
View supporting evidence
Procurement method and procurement method details are null.
Submission deadline
99% confidence
Unknown.
View supporting evidence
No submission deadline is supplied.
Published date
99% confidence
9 October 2026.
View supporting evidence
Published at “2026-10-09T14:34:39+01:00”.
Lots
99% confidence
One planning lot is recorded, but it has no title, description, value, or deadline.
View supporting evidence
Lot 1 has status “planning”; title, description, value, currency and submission deadline are null.
RISKS AND UNKNOWNS
Points requiring attention
HF service compatibility
99% confidence
High technical and safety risk: the valve and especially its seals must tolerate hydrofluoric acid at approximately 25–50% by mass.
View supporting evidence
The notice requires HF compatibility and states that seal material suitability and chemical resistance require particular attention.
Operating envelope
99% confidence
The required operating range combines powder transfer, quick-connect/disconnect use, temperatures up to about 300°C, and full vacuum to about 3 barg; technical suitability will need validation.
View supporting evidence
The stated minimum requirements specify powder transfer, quick-connect/disconnect operations, approximately 300°C, and full vacuum to approximately 3 barg.
Connection-size ambiguity
98% confidence
The stated connection dimensions are unclear because each range is written in descending order (“100 mm to 50 mm” or “100 mm to 80 mm”). Clarification is needed before confirming fit.
View supporting evidence
The notice states “100 mm to 50 mm diameter, or 100 mm to 80 mm diameter”.
Early-stage uncertainty
99% confidence
Final scope, procurement route, commercial terms, supplier participation method, timetable, and award arrangements are unknown because this is a planned market-engagement notice.
View supporting evidence
The opportunity is marked planning/upcoming; procurement method, values, deadlines, and contract dates are not supplied.
ProcuraAxis analysis supplements, but does not replace, the original notice and tender documents. Always verify eligibility, deadlines and commercial terms with the issuing authority.
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