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2. Desmodromic valve - Wikipedia

   en.wikipedia.org/wiki/Desmodromic_valve

   Valve float was analyzed and found to be caused largely by resonance in valve springs that generated oscillating compression waves among coils, much like a Slinky. High speed photography showed that at specific resonant speeds, valve springs were no longer making contact at one or both ends, leaving the valve floating [ 12 ] before crashing ...

3. Float chamber - Wikipedia

   en.wikipedia.org/wiki/Float_chamber

   The valve is often described as a needle valve, although this is a misnomer. A true needle valve uses a tapered needle in a tapered seat, so as to provide fine control over flow rate. The float valve uses a pointed needle against a square-edged seat, to give a positive shut-off. As the float relies on gravity, the chamber must be mounted ...

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   mail.aol.com

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5. Spare part - Wikipedia

   en.wikipedia.org/wiki/Spare_part

   A spare part, spare, service part, repair part, or replacement part, is an interchangeable part that is kept in an inventory and used for the repair or refurbishment of defective equipment/units. Spare parts are an important feature of logistics engineering and supply chain management, often comprising dedicated spare parts management systems.

6. Ballcock - Wikipedia

   en.wikipedia.org/wiki/Ballcock

   The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow.

7. Reduced pressure zone device - Wikipedia

   en.wikipedia.org/wiki/Reduced_pressure_zone_device

   There is a variety of manufacturers of these gauges, but most utilize either a three-valve or a five-valve design to test the RPZD in different ways. In the UK , [ 6 ] Illinois, New York , [ 7 ] Texas , [ 8 ] and Missouri ( RsMO 10c60-11 ), the RPZD valve must be tested at least every 12 months by an accredited tester.

8. Israeli strikes kill dozens in Gaza, Egypt to host Hamas ...

   www.aol.com/news/israeli-tanks-retreat-central...

   CAIRO (Reuters) -Israeli military strikes killed at least 40 Palestinians overnight and on Friday in the Gaza Strip, medics said, as efforts to revive Gaza ceasefire talks received a boost with ...

9. Globe valve - Wikipedia

   en.wikipedia.org/wiki/Globe_valve

   Globe valve. A globe valve, different from ball valve, is a type of valve used for regulating flow in a pipeline, consisting of a movable plug or disc element and a stationary ring seat in a generally spherical body. [1] Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle.