---
title: "Procurement and In-Service Support of Closed-Circuit Mixed Gas Diving Life Support Systems"
ocid: "ocds-h6vhtk-078128"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-078128"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-078128.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-078128.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "Defence Equipment and Support"
published: "2026-10-05"
---

# Procurement and In-Service Support of Closed-Circuit Mixed Gas Diving Life Support Systems

Buyer: Defence Equipment and Support  
Current stage: Planning  
OCID: ocds-h6vhtk-078128

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## Summary

Defence Equipment and Support intends to procure around 200 closed-circuit mixed-gas diving life-support systems to renew military diving capability for the Royal Navy and associated users carrying out underwater defence tasks. The goods are expected to include rebreather systems and depth-appropriate bailout equipment, alongside training solutions, maintenance, technical documentation, spares and in-service support. The systems are intended for military diving operations, training and worldwide operational deployments, including use in varied environments and austere climates. This is a defence equipment requirement combining specialist diving apparatus with the support and training needed to keep the capability in service. The anticipated service life is around 10 years.

This is at the planning stage: the buyer has stated an intention to procure, but has not invited tenders. It expects to use a competitive flexible procedure. The planned procurement is one lot, and the buyer considers it suitable for small and medium-sized businesses. The stated estimated value is £19,166,666.67 excluding VAT (£23,000,000 including VAT). The expected contract period runs from 1 August 2030 to 31 July 2033, with a possible extension to 31 July 2035. The buyer expects to publish a future procurement notice on 1 February 2028; this is an indicative date, not a response deadline. The scope, quantity, specification and timescales remain subject to change.

This requirement is suited to suppliers with expertise in designing or supplying military diving life-support equipment and the ability to support it throughout its service life. The intended system is a robust, low-maintenance, electronically monitored and controlled closed-circuit mixed-gas rebreather, with low magnetic and acoustic signatures and the ability to integrate with other life-support systems. The buyer is looking for equipment that supports dry, wet and simulated training, including fault-insertion exercises, and remains usable in varied operating conditions. Suppliers should be prepared to address dependability, operational availability and safety through good human factors, reduced user burden, simplified maintenance and streamlined pre-dive preparation, as well as providing training, spares, documentation and ongoing support.

## Notice

The Authority intends to procure approximately 200 closed-circuit mixed gas diving life support systems to replace and renew military diving capability for the Royal Navy and associated users undertaking underwater defence tasks. The capability is expected to remain in service for approximately 10 years and is intended to support worldwide operational deployments and training. The solution is expected to comprise a robust, low-maintenance, electronically monitored and controlled closed-circuit mixed-gas rebreather system with depth-appropriate bailout systems, low magnetic and acoustic signatures, and the ability to integrate with other life support systems. The solution is expected to support dry, wet and simulated training scenarios, including fault insertion for training purposes. It should be suitable for military diving operations across a wide range of operating environments whilst remaining operable in austere climatic conditions. The Authority is seeking improved dependability, employability and safety through enhanced human factors, reduced user burden, simplified maintenance and streamlined pre-dive preparation. The procurement is also expected to include associated training solutions, maintenance, technical documentation, spares and in-service support arrangements. This notice is provided for advance market awareness only and does not commit the Authority to undertake the procurement described. All aspects of the requirement, including scope, quantity, technical specification and timescales, remain subject to change.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/094010-2026 |
| Notice type | UK1 - Pipeline Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Not Specified |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 5 Oct 2026 |
| Submission deadline | Not specified |
| Future notice date | 1 Feb 2028 |
| Award date | Not specified |
| Contract period | 1 Aug 2030 - 31 Jul 2033 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £19,166,666 |
| Lots value | Not specified |
| 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 | Defence Equipment and Support |
| Locality | BRISTOL |
| Postcode area | Bristol |
| Postcode | BS34 8JH |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK5 West of England |
| ITL 3 | TLK52 Bath & North East Somerset and South Gloucestershire |
| Local authority | South Gloucestershire |
| Electoral ward | Stoke Park & Cheswick |
| Westminster constituency | Filton and Bradley Stoke |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 37 - Musical instruments, sport goods, games, toys, handicraft, art materials and accessories

### Codes

- 37412241 - Breathing apparatus for diving

## Release History

- 5 Oct 2026 at 17:22 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/094010-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/094010-2026
  5th October 2026 - Pipeline notice on Find a Tender

## Notice URLs

- https://www.gov.uk/government/organisations/defence-equipment-and-support
- 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-078128. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-078128.json.