---
title: "3\" Cryogenic Hydrogen Vent Stack with Changeable Terminations"
ocid: "ocds-h6vhtk-05ff17"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05ff17"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05ff17.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05ff17.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "HEALTH AND SAFETY EXECUTIVE"
published: "2026-01-05"
---

# 3" Cryogenic Hydrogen Vent Stack with Changeable Terminations

Buyer: HEALTH AND SAFETY EXECUTIVE  
Current stage: Planning  
OCID: ocds-h6vhtk-05ff17

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## Summary

Health and Safety Executive (HSE) is initiating an open procurement process for the planned purchase of a 3" cryogenic hydrogen vent stack with interchangeable terminations, intended for experimental use at their Buxton test site. This procurement falls under the category of industrial process control equipment and piping, with the legal basis established by the UKPGA 2023/54. The procurement method is an open competition below the threshold. Important dates to note include the tender period ending on 2nd February 2026, with the planned contract period commencing on 2nd March 2026 and concluding on 30th September 2026. The procurement is currently at the planning stage.

This tender presents a valuable opportunity for suppliers of industrial control and piping equipment to engage with HSE, a central government public authority. Businesses specialising in cryogenic and hydrogen systems are encouraged to compete, as well as manufacturers capable of delivering customised solutions for experimental programmes. The project budget offers a competitive prospect with a gross value of £30,000. This procurement seeks innovative designs and cost-effective manufacturing solutions for the vent stack, offering growth opportunities for companies with expertise in high-pressure and cryogenic applications. The venue for delivery is in Buxton, UK, fostering local business engagement. Suppliers can submit queries and cost proposals via email, ensuring a streamlined communication process.

## Notice

HSE require a 3" vent stack for use with cryogenic hydrogen for an experimental programme. The vent must have interchangeable terminations (miter cut, bullhorn) which may be on a flanged connection or otherwise joined. The vent stack (including the termination) should have a height of 7 m and the vent stack must have a maximum allowable working pressure of 40 barg. Nominal process conditions: Hydrogen, 50 - 70 K, 0 - 1.5 kg/s, 0 -12 barg The equipment is required for use at the HSE Buxton (SK17 9JN) test site. HSE is seeking to understand the design of potential solutions and the associated costs of manufacturing this equipment. Suppliers should email tenders@hse.gov.uk with any questions and costs associated with supplying the above.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/000195-2026 |
| Notice type | UK3 - Planned Procurement Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Below threshold - open competition |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 5 Jan 2026 |
| Submission deadline | 2 Feb 2026 |
| Future notice date | 12 Jan 2026 |
| Award date | Not specified |
| Contract period | 2 Mar 2026 - 30 Sep 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £25,000 |
| Lots value | £25,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planned |
| Lots status | Planned |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | HEALTH AND SAFETY EXECUTIVE |
| Locality | LIVERPOOL |
| Post town | Liverpool |
| Postcode | L20 7HS |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD7 Merseyside |
| ITL 3 | TLD73 Sefton |
| Local authority | Sefton |
| Electoral ward | Linacre |
| Westminster constituency | Bootle |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)
- 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

### Codes

- 38810000 - Industrial process control equipment
- 44162000 - Piping

## Release History

- 5 Jan 2026 at 10:51 - Planning - UK3 - Planned Procurement Notice - https://www.find-tender.service.gov.uk/Notice/000195-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/000195-2026
  5th January 2026 - Planned procurement notice on Find a Tender

## Notice URLs

- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05ff17. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05ff17.json.