How to win: Split Butterfly Valve for Powder Transfer Applications

About this contract

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.

How to win contracts like this

• ✓Answer against the marking scheme, not the question text — UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED scores each response, so map your evidence to the published criteria and weightings.
• ✓Lead with evidenced capability and social value — for goods work these usually outweigh price.
• ✓Show recent, comparable delivery: name similar goods contracts you've delivered for public bodies, with measurable outcomes.
• ✓Start early: it closes 23 October 2026 and a strong bid takes iteration.

BidWriter drafts your responses from your company profile, scores them against the marking scheme, and tracks your whole pipeline. Free to start — no card needed.

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