Construction Contract Leads

Scope

Reference

713431451-Supply and Support for Valves and their Actuators

Description

This contract is for the provision of spares, repairs, technical support and Post Design Services for the following types of Submarine Valves, Actuators and their components for all In-service Submarines: ​

First Level Valves​

Non-First Level Valves​

First Level Actuators​

Non-First Level Actuators. ​

There will also be a small requirement for valves and actuators for RN surface fleet.​

Total value (estimated)

• £65,000,000 excluding VAT
• £78,000,000 including VAT

Above the relevant threshold

Contract dates (estimated)

• 1 October 2027 to 30 September 2029
• Possible extension to 30 September 2031
• 4 years

Main procurement category

Goods

CPV classifications

• 35512100 - Strategic submarine nuclear fuelled
• 35512200 - Attack submarine nuclear fuelled
• 35511000 - Surface combatant
• 35513100 - Mine hunter/minesweeper
• 35521000 - Hull and mechanical spare parts for warships
• 31711400 - Valves and tubes
• 42131100 - Valves defined by function
• 42131140 - Pressure-reducing, control, check or safety valves
• 42131141 - Pressure-reducing valves
• 42131142 - Control valves
• 42131145 - Check valves
• 42131146 - Non-return valves
• 42131147 - Safety valves
• 42131148 - Stop valves
• 42131230 - Gate valves
• 42131240 - Globe valves
• 42131260 - Ball valves
• 42131270 - Plug valves
• 42131280 - Butterfly valves
• 42131292 - Flap valves
• 42131390 - Assemblies of valves
• 42132100 - Valve actuators
• 42132110 - Electric valve actuators
• 42132120 - Hydraulic valve actuators
• 42132130 - Pneumatic valve actuators
• 42132300 - Valve parts
• 50500000 - Repair and maintenance services for pumps, valves, taps and metal containers and machinery
• 50640000 - Repair and maintenance services of warships

Contract locations

• UK - United Kingdom

Engagement

Engagement deadline

11 March 2026

The engagement was carried out before this notice was published.

Engagement process description

Previous Early Market Engagement occurred under 713431451-RFI - 713431451 - Valves and Actuators which occurred in December 2024 to January 2025. Information from this and repsonses related to Valves and Actuators under 714937452-UK2a - SDA Platform Equipment Delivery Team (PEDT) Supplier Engagement have been incorporated into this procurement, which will be subject to the Procurement Act 2023.

Submission

Publication date of tender notice (estimated)

10 July 2026

Procedure

Special regime

Defence and security

Contracting authority

Submarine Delivery Agency

• Public Procurement Organisation Number: PBHX-4625-LVPD

MOD Abbey Wood

Bristol

BS34 8JH

United Kingdom

Contact name: Emilia Pattison

Telephone: 03033817885

Email: example.example [at] mod.gov.uk

Website: https://www.gov.uk/government/organisations/submarine-delivery-agency

Region: UKK12 - Bath and North East Somerset, North Somerset and South Gloucestershire

Organisation type: Public authority - central government

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