Font Size

100% 150% 200%

Background Colour

Default Contrast
Close Reset

Pump room, interior. View from North East

SC 656645

Description Pump room, interior. View from North East

Date 4/10/1996

Collection RCAHMS

Catalogue Number SC 656645

Category On-line Digital Images

Copy of D 3139 CN

Scope and Content Pump room, pumping station, World War I and II Naval Base, Lyness, Hoy, Orkney Islands At Lyness on Hoy, close to the sounds which made up the main fleet anchorage, naval quarters, stores and an oil depot were established during World War I and were considerably developed in World War II to become the Base Headquarters, HMS Proserpine. The base came to include an extensive area for the repair of anti-submarine boom nets, above-ground oil storage tanks and, beneath the nearby hill of Wee Fea, six very large underground fuel tanks. The solitary surviving above-ground tank at Lyness was one of four of 12,000-ton capacity built in 1917 when oil-fired warships were coming into regular service with the Royal Navy. In 1937-8, with another war looming, Messrs Balfour, Beatty & Co Ltd were contracted by the Admiralty to build 12 additional, slightly larger, 15,000-ton tanks, bringing the total complement of above-ground tanks to 16. The associated pumping station, which also dates from 1917, drew the heavy fuel oil from tankers at the pier. Originally coal-fired, the steam pumps were converted to diesel power in 1936, and pumping station and tank together now form the Scapa Flow Visitor Centre. This view of the pump room shows, in the foreground, the steam-powered pump engines which were used to pump the heavy fuel oil from tankers into the storage tanks or from the storage tanks down to the ships. There are three pumps, each of a type technically known as duplex, triple expansion, horizontal piston pumps made by Worthington. Each pump is double-acting, that is, from the relief valve on the force side there is a discharge back to the suction side of pumps. Triple expansion means that the steam passes through three cylinders - of high, intermediate and low pressure. At the heart of the Orkney archipelago, Scapa Flow was the main fleet anchorage for the Royal Navy during both World Wars. Its vital importance led to the creation of one of the most concentrated defence networks in Britain. Source: RCAHMS contribution to SCRAN.


File Format (TIF) Tagged Image File Format bitmap

People and Organisations


Attribution & Licence Summary

Attribution: © Crown Copyright: HES

Licence Type: Full

You may: copy, display, store and make derivative works [eg documents] solely for licensed personal use at home or solely for licensed educational institution use by staff and students on a secure intranet.

Under these conditions: Display Attribution, No Commercial Use or Sale, No Public Distribution [eg by hand, email, web]

Full Terms & Conditions and Licence details

MyCanmore Text Contributions