open up, unfastened - affording unobstructed entrance and exit; not shut or shut; "an open door"; "they still left the doorway open up"

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Butterfly valves for drinking water are used as Command valves in pipelines to shut off drinking water stream. These valves are available in big measurements and they are ideal for managing slurries and liquids with relatively significant amounts of solids at lower pressures.

down and the masses of unemployed grew. From your Cambridge English Corpus Commonly, as an example, It could be dangerous for a songbird to shut

pneumatic I see this particularly in connection with the event of automation and also the larger utilization of hydraulics, electronics and pneumatics. From the Hansard archive

'Tis harrd being anything ye niver had been an' niver intended for being, an' the many ould days shut up together wid your papers.

“Concentric butterfly valves�?or “Zero offset butterfly valves�?are designed with no offset in the disc from its stem. The valve seals through interference along the disc edge on the stem concerning and also the rubber seat.

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Equipment: These are typically made for a bit bigger butterfly valves and benefit from a gearbox to raise torque in the expenditure of lowered velocity of opening/closing.

The disc will Get hold of the seat the earliest (±eighty five°) in the ninety° rotation. DEMCO valves are durable resilient-seated valves that feature a one particular-piece human body for minimized pounds and amplified strength. Their unique stem hole style inside the disc assures a dry stem journal, along with the challenging-backed seat permits relieve of set up, trusted Procedure, and subject alternative devoid of Particular equipment. DEMCO valves are well proved in industrial and industrial apps.

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In the event the valve operator turns the take care of clockwise around 90 levels, the take care of transfers its motion to your steam.

its eyes or block off its ears. Within the Cambridge English Corpus A reaction to this could possibly contain shutting off (at least transiently) ongoing metabolic activity in the plug valve mobile.

Equipment wheel operation is another technique typical way to work butterfly valves. In such a Procedure, a hand-operated wheel rotates a gear that is hooked up on the stem to move the disc. This method is helpful for all sorts of butterfly valves either significant or smaller.