Source: https://tendernation.io/opportunities/01a13c27-1fb7-70f9-a0b1-71fc71d828f8/liquid-nitrogen-supply-to-george-porter-building closed GB open procedure Suitable for SMEs # Liquid Nitrogen Supply to George Porter Building [University of Sheffield](https://tendernation.io/buyers/university-of-sheffield) Estimated value £70,000 Published 5 Jul 2018 Deadline Closed 20 Jul 2018 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - 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 The EPSRC National Epitaxy Facility (NEF) at the University of Sheffield supplies a wide range of III-V semiconductor materials grown by molecular beam epitaxy (MBE) primarily to the UK academic research community. As part of its expansion plans, the facility is introducing a new double chamber cluster MBE system. The University now requires an upgrade and extension of its existing infrastructure for the delivery of liquid nitrogen to this and another MBE laboratory within the Nanoscience's Complex in the University's North Campus. A closed loop liquid nitrogen delivery system with phase separators is required for continuous supply of liquid nitrogen, via compatible connectors, to the cryopanels and through other parts of MBE systems for cooling to cryogenic temperatures. The system should be designed to minimize the vapourisation of the liquid nitrogen and to maintain pure liquid nitrogen flow at constant low pressure to the cryopanels preventing hot spots, or other effects that will interfere with the operation of the MBE system. The system must also be designed to maximise the recycling of liquid nitrogen and the safe venting of exhasut gas. The system must be designed for safe, efficient and long lasting operation and have provision for automated control, minimal user maintenance needs and be flexible for upgrade paths if additional machines require connection. The system must be fully installed in accordance with all regulations, both University and statutory, and we require delivery and installation within a period of no more than 3 months from placement of purchase order. Tendering companies may conduct a site assessment of options for installing the system on request and precise details of the design configuration are a requirement of the tender process. Read full description ## CPV classification Gases Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/808a7dbd-97b2-4270-b35e-115dc727ed00) 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 University of Sheffield: past awards and live tenders](https://tendernation.io/buyers/university-of-sheffield) [Sector More Chemical products tenders](https://tendernation.io/sectors/chemical-products) ## More tenders like this [Insecticides – Fourniture de produits insecticides, rodenticides et de matériels pour application · Ville de Paris - DFA- SDA · 36 days left · 24 Nov 2026](https://tendernation.io/opportunities/01a15183-44dd-7086-bd8c-4e503f7f91c0/france-insecticides-fourniture-de-produits-insecticides-rodenticides-et-de) [Basic inorganic and organic chemicals – Specifične kemikalije za potrebe PMF-a · Sveučilište U Zagrebu Prirodoslovno-Matematički Fakultet · 30 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-4359-72b5-9962-0355989b2da3/croatia-basic-inorganic-and-organic-chemicals-specificne-kemikalije-za-potre) [Water-treatment chemicals – fornitura DI reagenti chimici PER GLI impianti DI depurazione acque reflue NEL perimetro della provincia DI pavia, comprensiva DI trasporto E consegna, suddivisa in 2 lotti · Pavia Acque S.C.A R.L. · 17 days left · 5 Nov 2026](https://tendernation.io/opportunities/01a15183-0af7-7097-92d7-3a8e250ff949/italy-water-treatment-chemicals-fornitura-di-reagenti-chimici-per-gli-impian) [Gases – Levering van gassen en controle van gerelateerde infrastructuur · Ev - Ilvo · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-2b7c-7026-a248-04bdcfe4b26b/belgium-gases-levering-van-gassen-en-controle-van-gerelateerde-infrastructuu) [New activated carbon – Dostawa pylistego węgla aktywnego (PWA) do uzdatniania wody przeznaczonej do spożycia z podziałem na zadania · Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji w m. st. Warszawie S.A. · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-1f0a-7143-bcfd-c2eb3eeb26b7/poland-new-activated-carbon-dostawa-pylistego-wegla-aktywnego-pwa-do-uzdat) [Water-treatment chemicals – Fourniture de produits de traitement des eaux de piscines et de produits spécifiques d'entretien des bassins · Ville de Toulon · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-587f-725f-b31c-0bd215e3a5e0/france-water-treatment-chemicals-fourniture-de-produits-de-traitement-des-ea)