Source: https://tendernation.io/opportunities/01a13ca5-398b-7081-aef1-3cdb6ebf5b43/supply-chain-notice-support-the-penstock-refurbishment-programme-within-hmnb-por pending GB open procedure Suitable for SMEs # Supply Chain Notice-Support the penstock refurbishment programme within HMNB Portsmouth [Ministry of Defence](https://tendernation.io/buyers/ministry-of-defence) Estimated value £400 Published 10 Feb 2022 Deadline Rolling deadline ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender - Lot 1 Penstock Refurbishment- KBS Maritime require a supplier to undertake refurbishment works to penstocks within the saltwater networks within HMNB Portsmouth. These assets play a critical role in supporting the maintenance and upkeep of RN vessels, the penstocks require periods of deep maintenance within tight schedules to minimise disruption to ships movements. Onsite activities include: Confined space working, mechanical strip down and re-installation, minor electrical works; including isolation, structural/civil installation works, Offsite activites include: precision machining, steelwork design, shotblasting/recoating of penstock doors and/or the procurement of these services. Any supplier must be experienced in the management of work in confined spaces and frequent communication with the onsite AP's throughout the project timeline will be critical. It is expected that any supplier will be completely self sufficient WRT confined space equipment, KBS Maritime will not supply any equipment required. - Lot 2 Penstock Replace Drainage Main Pumps- KBS Maritime require a supplier to undertake a drainage pump replacement project within HMNB Portsmouth. The 2x drainage pumps that require replacement currently serve to keep the locks, docks and interconnecting culvert network are currently set up as dry well pumps. Due to the success of converting dry wells into wet wells in other pumping station on the base, KBS Maritime are looking to repeat this and install 2x new submersible pumps into newly converted wet wells, replace c. 120m of discharge pipework and install all new access and maintenance arrangements. Each pump must be capable of discharging 1500 m3/hr of saltwater at a head of approximately 20m. Onsite activities include: Confined space working, mechanical strip down and re-installation, electrical installation, concrete cutting, structural/civil installation works. Offsite activites include: pump system design, control panel design, civil and structural steelwork design, and/or the procurement of these services. Any supplier must be experienced in the management of work in confined spaces and frequent communication with the onsite AP's throughout the project timeline will be critical. It is expected that any supplier will be completely self sufficient WRT confined space equipment, KBS Maritime will not supply any equipment required. Additional information: Please contact Paul Homshaw at to request a Pre- Qualification Questionnaire for this opportunity Read full description ## CPV classification Penstock valves Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/dcf86d47-b2be-435f-a0c6-7b93f1fec4e2) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Ministry of Defence: past awards and live tenders](https://tendernation.io/buyers/ministry-of-defence) [Sector More Industrial machinery tenders](https://tendernation.io/sectors/industrial-machinery) ## More tenders like this [Lifting and handling equipment – Moyens de manutention motorisés · Union des Groupements d'Achats Publics · 57 days left · 15 Dec 2026](https://tendernation.io/opportunities/01a156a9-88ab-73d8-bf7c-44ba9139abc3/france-lifting-and-handling-equipment-moyens-de-manutention-motorises) [Lathes – Strung universal cu diametrul de prelucrare între Ø 320 ÷ Ø 380 mm · S Uzina Mecanica Plopeni SA · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a156a9-89ea-7222-a30a-79ce9a09d1c7/romania-lathes-strung-universal-cu-diametrul-de-prelucrare-intre-o-320-o-3) [Water pumps – ΠΡΟΜΗΘΕΙΑ ΑΝΤΑΛΛΑΚΤΙΚΩΝ ΓΙΑ ΤΙΣ ΥΠΗΡΕΣΙΕΣ ΕΠΙΣΚΕΥΗΣ ΤΩΝ ΥΠΟΒΡΥΧΙΩΝ ΑΝΤΛΗΤΙΚΩΝ ΣΥΓΚΡΟΤΗΜΑΤΩΝ ΥΔΡΕΥΣΗΣ · ΔΗΜΟΤΙΚΗ ΕΠΙΧΕΙΡΗΣΗ ΥΔΡΕΥΣΗΣ-ΑΠΟΧΕΥΤΕΥΣΗΣ ΗΡΑΚΛΕΙΟΥ (Δ.Ε.Υ.Α.Η.) · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-74e7-7383-82e1-b4c6885044d2/greece-water-pumps-promhthia-antallaktikon-gia-tis-yphresies-episkefhs-ton-y) [Miscellaneous special-purpose machinery – „Wood Vision Lab“ - das Technikum: "Absauganlage" · Wood Vision Lab GmbH · 8 days left · 27 Oct 2026](https://tendernation.io/opportunities/01a156a9-7ec8-7322-8445-8dcef4fed830/austria-miscellaneous-special-purpose-machinery-wood-vision-lab-das-tech) [Centrifuges – Centrifug och styrskåp - Hudiksvalls kommun · Hudiksvalls kommun · 2 days left · 21 Oct 2026](https://tendernation.io/opportunities/01a156a9-8986-70b3-a08f-2e4ab5fe626c/sweden-centrifuges-centrifug-och-styrskap-hudiksvalls-kommun) [Machinery and apparatus for filtering or purifying water – Systém na přípravu ultračisté vody · Vysoká škola báňská - Technická univerzita Ostrava · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-8de7-7383-a6dd-5533ea57df0c/czechia-machinery-and-apparatus-for-filtering-or-purifying-water-system-na-p)