FOOT VALVES. VALVES

Foot Valves. Aro Valves. Foot Valve Problems.

Foot Valves


foot valves
    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.
  • (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.
  • A one-way valve at the inlet of a pipe or the base of a suction pump
  • (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.

[4-12-2011] - Valve Wheel
[4-12-2011] - Valve Wheel
Lefty loosey righty tighty. By far the smallest piece of old machinery at Gasworks Park it is perhaps my favorite. Set amongst much taller pipes and smoke stacks its easy to miss this small valve wheel sticking out of the ground. I’ve often wondered what importance it served while the gas plant was still operational, and why of all things they choose to keep it intact as part of the park. I am really rather pleased with the way this exposure turned out. The vignetting is some of the darkest and most prominent I’ve seen produced from my Holga 120N. I haven’t experimented much with the different focal lengths images on the lens, assuming they don’t actually have much affect on the image. For this shot however I did decide to move it away from the mountains and to the single person setting as the camera was about 3 or so feet from the subject mater. One of these days I’ll get around to doing some test exposures on the different settings to see what results they produce.
Four Stop Valve
Four Stop Valve
Having no tripod, and too much coffee, made getting this picture difficult. The four rocking valves of a factory steam engine (With a twelve foot flywheel) moving in an idle speed of 45 RPM. When moving that slowly, it's pretty cool (and scary) how quiet they can be.

foot valves
See also:
cool tire valves
quick valve
bendix air valve
grooved end butterfly valve
deva shower valves
irritrol sprinkler valve
leonard mixing valve parts
grinding valve seats
gate valve cross section