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CAST IRON FOOT VALVES - CAST IRON
Cast Iron Foot Valves - Honeywell Mixing Valve.
Cast Iron Foot Valves
- (Foot Valve) A special type of check valve located at the bottom end of the suction pipe on a pump; it opens when the pump operates to allow water to enter the suction pipe, but closes when the pump shuts off to prevent water from flowing out.
- A one-way valve at the inlet of a pipe or the base of a suction pump
- (FOOT VALVE) Part of the cylinder that holds the column of water in the rising main while the plunger is being pushed down after each up-stroke.
- (Foot Valve) A type of check valve with a built-in strainer. Used at point of liquid intake to retain liquid in system, preventing loss of prime when liquid source is lower than pump.
- Cast iron usually refers to grey iron, but also identifies a large group of ferrous alloys, which solidify with a eutectic. The colour of a fractured surface can be used to identify an alloy.
- an alloy of iron containing so much carbon that it is brittle and so cannot be wrought but must be shaped by casting
- extremely robust; "an iron constitution"
- A hard, relatively brittle alloy of iron and carbon that can be readily cast in a mold and contains a higher proportion of carbon than steel (typically 2.0–4.3 percent)
- Firm and unchangeable
Wateringbury - Mill valve head (Kent)
Brattle Mill was a corn mill. It was named after a miller, Robert Brattle. It was first mentioned in 1783 and was owned by Robert Brattle. In 1838 the mill was owned by Harry Blaker and occupied by William Mills. Harry Blaker died c.1848 and the mill was run for a short time by his widow, Sarah. James Fremlin took over the lease of the mill by 1851, also running Warden Mill. He purchased the mill from Sarah Blaker c.1868. The miller at this time being Alfred Bloorman. The original overshot waterwheel was of wood. It was replaced by a turbine c.1910 and it was about this time the mill was last used for milling, then being used to generate electricity. Brattle Mill was sometimes known as Upper Mill. A 15 feet 6 inches (4.72 m) diameter by 6 feet (1.83 m) wide cast iron overshot waterwheel from Lower Mill, Polegate, Sussex, was reconstructed at the mill in the early 1980s and the owner intended to reconstruct the machinery to return the building to a working mill. The mill originally worked three pairs of millstones.
Keathbank Balcones
Balcones overlooking the foot bridge across the river Ericht, late evening.
Keithbank, Blairgowrie, Perthshire, Scotland
During the 19th century, there were 12 mills along the River Ericht, with flax spinning being overtaken by jute from the 1850s.
The mill was rebuilt with a wheel at one end an engine at the other in 1865, with American Civil War profits.
Dundee engineers (J & C Carmichael) provided the power plant
Single cylinder horizontal engine, 22" cylinder, 4' stroke, 17' flywheel, later drop valves.
Keathbank has/or had Scotland's largest water wheefitted cica 1865, by J Kerr (Dundee), 14' wide, 18' diameter, 4 sets cast-iron spokes.
Ruston & Hornsby Diesel Engine added circa 1937.
The declining textile industry meant gradual closure of all but Keathbank which finally closed as a working mill in 1979.
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Post je objavljen 01.02.2012. u 04:51 sati.