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.
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.
How to bid: GlobalGov tracks this tender; it does not accept bids. Submit your response through the issuing agency’s official notice.
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| Issuing agency | United Kingdom National Nuclear Laboratory Limited |
|---|---|
| Country | United Kingdom |
| Category | Government Procurement |
| Published | October 09, 2026 |
| Procurement stage | Request for Proposal (RFP) |
| Response due | Not specified / rolling |
| Status | Open — accepting responses |
| Official source | View original notice |
| Last verified | October 11, 2026 |
Contains public sector information licensed under the Open Government Licence v3.0. Source: UK Government (Find a Tender).
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