valve

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  • noun

Words related to valve

a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it

device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone

the entire one-piece shell of a snail and certain other molluscs

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one of the paired hinged shells of certain molluscs and of brachiopods

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References in classic literature ?
I see only a coincidence of occurrences such as happens with all the phenomena of life, and I see that however much and however carefully I observe the hands of the watch, and the valves and wheels of the engine, and the oak, I shall not discover the cause of the bells ringing, the engine moving, or of the winds of spring.
This physician likewise abundantly establishes what he has advanced respecting the motion of the blood, from the existence of certain pellicles, so disposed in various places along the course of the veins, in the manner of small valves, as not to permit the blood to pass from the middle of the body towards the extremities, but only to return from the extremities to the heart; and farther, from experience which shows that all the blood which is in the body may flow out of it in a very short time through a single artery that has been cut, even although this had been closely tied in the immediate neighborhood of the heart and cut between the heart and the ligature, so as to prevent the supposition that the blood flowing out of it could come from any other quarter than the heart.
I am a great sufferer, and I have long had suspicions as to that valve.
Heart valve replacement is segmented by type into mechanical valves, tissue/bioprosthetic valves and transcatheter heart valves/ percutaneous heart valves.
This month I will briefly review control valve fundamentals and explain the differences between the two primary control valve technologies and other accessories used in water flow control to assist designers in selecting modulating control valves for their application.
Being able to relate to your customer's strategic requirements is the differentiating factor in being viewed as a mere supplier of valves to being looked upon as a strategic valve management partner.
Heart valves tend to suffer one of two fates: Either they become stiff due to calcium buildup--a condition called stenosis, or they become floppy due to tissue laxity.
Your heart has four valves to control the flow of blood within the chambers of the heart, as well as to the rest of the body.
All steam control valves should have an operational life of at least six years due to available technology and current material standards, and proper installation will greatly prolong the life of the valve.
Also, by tracking the process flow through the valve against valve travel, maintenance engineers can use the historical data over time to perform predictive diagnostics on valve wear and process system performance, offering a better understanding of the best time to repair or replace process valves.
Everything that is needed is a little background information and sufficient knowledge of valves and the suppliers, each promising to deliver the right kind of valves in the right place at the right time.
Total Valve Systems will become a full line distributor of all Taylor Valve Technology products including valves for fluid and gas transmission as well as products from Taylor Valve's other divisions.
The valve gates are thus more compact, which allows valves serving each mold face to be positioned opposite each other in the manifold, which saves mold costs.
Valves and sill cocks are used on pipelines; faucets are installed on fixtures.
Trouble is, there are still some vehicles that have these valves installed.