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A ball valve is a flow control device which uses a hollow, perforated, and pivoting ball to control fluid flowing through it. It is open when the hole through the middle of the ball is in line with the flow inlet, and closed when it is pivoted 90 degrees by the valve handle, blocking the flow. [1] The handle lies flat in alignment with the flow ...
Contains either high-pressure compressed air or air at lower than atmospheric pressure (vacuum), depending on whether the locomotive has an air brake or vacuum brake system. [6]: 483–486 [3]: 1. Water compartment. Tank for water to be used by the boiler to produce steam. [3]: 79. Coal bunker.
Aortic valve replacement. ICD-9-CM. 35.21 - 35.22 V43.3. [edit on Wikidata] Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve. The aortic valve may need to be replaced because of aortic regurgitation (back flow), or if the valve is narrowed by stenosis.
Ballcock. A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y Ramírez, a Mexican priest and scientist, who described the device in ...
Rotary valves and piston valves: parts of brass instruments used to change their pitch; Rotolock valve; Rupture disc: a one-time-use replaceable valve for rapid pressure relief, used to protect piping systems from excessive pressure or vacuum; more reliable than a safety valve; Saddle valve: where allowed, is used to tap a pipe for a low-flow need
valvula .es. Grupo Compás, which trades as Alloy Valve Stockist, is an industrial alloy valve stockist and distributor based out of Barcelona, Spain and is recognized as one of the fastest growing service companies in Spain. [1] Their customers come from three areas of activity: chemical and petrochemical refineries, combined cycle plants and ...
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