Библиотека

А Б В Г Д Е Ж З И К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Э Ю Я

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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Vacuum gauge
— A pressure gauge for measuring pressures lower than atmospheric pressure.
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Vacuum insulation
— Insulation consisting of double walls, the space between them, with or without packing, being evacuated.
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Vacuum plant
— An enclosure in which a low pressure has been established and maintained through gas-tightness or via pumping.
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Vacuum pump
— Any piece of equipment for reducing pressure in an enclosure.
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Vacuum system
— An enclosure in which a low pressure has been established and maintained through gas-tightness or via pumping.
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VACUUM TECHNIQUE
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Vacuum test
— A test to check the gastightness of an uncharged refrigeration system by drawing a vacuum upon it.
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Valve (general)
— A device which can regulate or stop the flow of fluid in a pipe by means of an obturator plug which is operated from the outside either directly, or remotely, or controlled by the variations in certain physical phenomena.
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Valve area
— The variable area encountered by a fluid flowing through a valve.
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Valve body
— The shell or housing of a valve, into which the mechanism for regulating flow is fitted.