3" Cryogenic Vent Stack with Changeable Terminations
Buyer: Health and Safety Executive
- Published
- 11 February 2026
- Submission deadline
- 6 March 2026
- Estimated value
- £25,000
- Place of performance
- UK
- Procedure
- Open procedure
- Lots
- 1
- Documents
- 1
- Notice number
- 012525-2026
- Reference
- ocds-h6vhtk-064e2b
- Official source
- Official source
CPV codes
- 44160000Pipeline, piping, pipes, casing, tubing and related items
Description
HSE require a 3" vent stack for use with cryogenic hydrogen for an experimental programme. The vent must have interchangeable terminations (miter cut, bullhorn, lambda) which may be on a flanged connection or otherwise joined. The vent stack should be 4 m tall and terminate in a 3" ANSI Class 300 flange. 0.5 m from the top there should be two bosses with ¼" BSP female fittings and another boss with a 7/16" UNJF female fitting. The vent stack must have a maximum allowable working pressure of 40 barg. The vent stack should have a manual drain valve at the bottom of the stack which is spring loaded (normally closed). 1.5 m from the bottom of the vent stack should be a 3" ANSI flange connection and a 1½" ANSI flange connection. Both these flanges must be Class 300. The vent should come with 3 interchangeable termination designs which are on 3" ANSI Class 300 flanges to attach to the top of the vent stack. Suitable gaskets and torque values/calculations for all flanges should be provided. See In-tend for full requirements
Official publications
- FTS · 012525-2026 · 11 February 2026
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Frequently asked questions
- What is the deadline to bid for this tender?
- The submission deadline is 6 March 2026. Check the official source, as dates can be modified.
- What is the estimated value of this tender?
- The estimated value published by the buyer is £25,000.
- Who is the buyer of this tender?
- The contracting authority is Health and Safety Executive (United Kingdom).
- How can I bid for public tenders in the United Kingdom?
- Bids are submitted through the official public procurement portal in the United Kingdom. El Vínculo helps you find tenders and analyse their documents; submission always happens at the official source.
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