PFI hospital projects use wide range of Oventrop valves

Oventrop valves DPCV
St Helens Hospital is one of two hospitals for St Helens & Knowsley Teaching Hospitals NHS Trust using Oventrop valves.

Oventrop has supplied a wide range of valves for the new St Helens Hospital for St Helens & Knowsley Teaching Hospital NHS Trust and is also supplying valves for Whiston Hospital, due for completion in April 2010.The hospitals are part of a £338 million PFI project for the New Hospitals Consortium for the two Merseyside hospitals at St Helens and Whiston. The contracts includes TRVs, differential-pressure regulating valves and Aquastrom T Plus domestic hot-water service valves.

These two hospital will provide 120 000 m2 of accommodation — comprising 7500 rooms, 20 theatre suites and the latest diagnostic facilities for radiology and cardiology.

Whiston Hospital will be about three times the size of St Helens Hospital and will have a similar heating-system concept. Engineering-services consultant for the project is RPS Gregory of Manchester, and mechanical-services engineer is Bailey Building Services.

The project incorporated a substantial amount of off-site manufacture of prefabricated M&E service modules.

The main plant room in St Helens Hospital is at second-floor level. It is supplemented by four roof plant rooms, essentially for air-handling units. MTHW from an existing energy centre is reduced to LPHW by a plate heat exchanger to serve 800 ceiling-mounted radiant panels equipped with Oventrop AV6 TRVs with wall-mounted remote sensors. DPCVs control the pressure across the TRVs. Commissioning sets are strategically located around the heating system, together with Oventrop isolation valves.

To eliminate legionella risk, Aquastrom T multi-function DHW secondary circulation regulating valves are used on all DHW supplies.

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