3" Cryogenic Vent Stack with Changeable Terminations
Health and Safety Executive · North West
Key facts
- Estimated value
- £25,000
- Closing date
- 06 Mar 2026
- Contract ends
- 01 Aug 2026
- Procedure
- Below threshold - open competition
- Buyer type
- Central government
- Source
- Find a Tender
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
Categories (CPV)
- 44160000 Pipeline, piping, pipes, casing, tubing and related items
Similar open tenders
Tender 23/2026 - SUPPLY AND DELIVERY OF WORKSHOP TOOLBOXES COMPLETE WITH TOOLS
Location: Northern IrelandBuyer: Newry, Mourne and Down District Council (NMD)
Open tenderCloses 2 Dec, 202628 daysSource Find a TenderNewry, Mourne and Down District Council invite suppliers to tender for the provision of a total of 10 toolboxes complete with tools. This is to equip the workshop personnel with the appropriate tooling to maintain Council vehicles, plant, and equipment to a high standard in line with industry guidelines and statutory r
BBV Sublot 4 - HSST1020 - SALTLEY VIADUCT GABION WALL
Buyer: Balfour Beatty VINCI JV HS2
Open tenderCloses 13 Nov, 20269 daysValue £1.00mSource Contracts FinderOpportunity Summary - Gabion Retaining Wall Works We are seeking experienced suppliers and subcontractors to provide the supply, delivery and installation of a gabion retaining wall system as part of a civil engineering project. Scope of Requirements The successful supplier shall be responsible for: Supply
Supply of EURO Heavyweight and Lightweight Pallets for West Midlands Fire and Rescue Authority 2026 - 2030
Location: United KingdomBuyer: West Midlands Fire and Rescue Authority
Open tenderCloses 4 Dec, 202630 daysValue £250.00kSource Find a TenderWest Midlands Fire and Rescue Authority (the Authority) is seeking to award a Contract for the provision of Euro Heavyweight and Lightweight pallets.
Dunsallagh/Killernan GWS Civil Engineering works to upgrade infrastructure
Location: IrelandBuyer: Dunsallagh/Killernan GWS
Open tenderCloses 16 Nov, 202612 daysValue €460.00KSource TEDDunsallagh/Killernan GWS are undertaking an upgrade of approx 5km section of existing 2" watermain to 4". Section A. Approximately 2.6km, from Doonsallagh West to the R474. Section B. Approximately 2.5km of roadway, from the junction of Knockbrack road and the R427 heading west. The works will require consulting engine
ITT for Supply of Windows & Doors for Individuals Batch 05 (T1398)
Location: ScotlandBuyer: Dundee City Council
Open tenderCloses 4 Dec, 202630 daysValue £220.00kSource Find a TenderManufacture, supply and delivery of uPVC windows and doors for Individuals Batch 05. This contract is for supply only as installation will be undertaken by DCC Construction Services.
ITT - Security Turnstiles, Roller Shutters, Automatic Doors & Access Control Maintenance Service
Location: South WestBuyer: New College Swindon
Open tenderCloses 2 Dec, 202628 daysValue £80.00kSource Find a TenderNew College Swindon is seeking to appoint a suitably qualified and experienced contractor to provide planned preventative maintenance (PPM), reactive repairs and emergency call-out support for security turnstiles, roller shutters, automatic doors and associated access control systems across its North Star and Queens Dr