page_title: Reed water tube boiler
hierarchical_section_title: Reed water tube boiler
caption_attribution_description: English: Reed water tube boiler of about 1900 built by Palmers Shipbuilding and Iron Company, Jarrow, England. The incomplete casing reveals the internal arrangement of water tubes. Coal was fed into the boiler through the three hatches on the side nearest the viewer. "A speciality of [Palmers' engine works] is the manufacture of the "Reed" water-tube boiler, the invention of Mr J. W. Reed, manager of the engine works department, which has been adopted with well-known results in&#160;... high-speed [torpedo boat destroyers]&#160;..., and also in vessels constructed for the Admiralty on the Clyde. It may be observed that nearly 25&#160;miles of tubes are used in the manufacture of the boilers and machinery of each 30-knot destroyer." (Malcolm Dillon (1900), Some Account of the Works of Palmers Shipbuilding and Iron Company, pp.&#160;33–4)
context_page_description: The Reed water tube boiler was a type of water tube boiler developed by J. W. Reed, manager of the engine works at Palmers Shipbuilding and Iron Company of Jarrow, England, where it was manufactured from 1893 to 1905. At this time, Palmers was a vertically integrated business: in its shipyard at Jarrow, using iron ore from its own mine in North Yorkshire, it produced the iron and steel needed for its ships, and engines and boilers of its own design.
  Intended for use in the steam propulsion of ships, the Reed water tube boiler was similar to other boilers such as the Normand and Yarrow, themselves developments of the du Temple boiler. These differed from locomotive boilers, also known as "fire tube boilers", in that, whereas the fire tube boiler consisted of a cylinder filled with water, which was heated by tubes passing through it carrying exhaust gases from a furnace, in the water tube boiler the situation was reversed, with water passing through steam-generating tubes mounted directly above the furnace. Advantages of the water tube boiler included comparative lightness and the ability to run at higher pressures.
context_section_description: The Reed water tube boiler was a type of water tube boiler developed by J. W. Reed, manager of the engine works at Palmers Shipbuilding and Iron Company of Jarrow, England, where it was manufactured from 1893 to 1905. At this time, Palmers was a vertically integrated business: in its shipyard at Jarrow, using iron ore from its own mine in North Yorkshire, it produced the iron and steel needed for its ships, and engines and boilers of its own design.
  Intended for use in the steam propulsion of ships, the Reed water tube boiler was similar to other boilers such as the Normand and Yarrow, themselves developments of the du Temple boiler. These differed from locomotive boilers, also known as "fire tube boilers", in that, whereas the fire tube boiler consisted of a cylinder filled with water, which was heated by tubes passing through it carrying exhaust gases from a furnace, in the water tube boiler the situation was reversed, with water passing through steam-generating tubes mounted directly above the furnace. Advantages of the water tube boiler included comparative lightness and the ability to run at higher pressures. About 170 of Reed's water tube boilers were installed in ships of the Royal Navy, in two of which they were installed to replace boilers rejected by the Admiralty.
caption: A Reed water tube boiler built for HMS Janus of 1895:[1] the incomplete casing allows a view of the arrangement of the steam-generating tubes. The two large, external tubes at the near end, and another pair at the far end, known as "down-comers", passed cooler water from the top chamber to the two bottom chambers, thereby enhancing circulation.
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