Ball valves consist of a solid ball held in place within the valve body between two circular resilient seats. The ball is connected to the internal end of the valve stem, and a hand-lever actuator is connected to the external end of the valve stem for manual operation. The ball has a hole (port) in […]
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Butterfly valves consist of a solid disc mounted within the valve body, which is connected to the internal end of the valve stem. A hand-lever actuator is connected to the external end of the valve stem for manual operation. When the valve stem is turned such that the disc is parallel to the fluid flow,
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Butterfly valves consist of a solid disc mounted within the valve body, which is connected to the internal end of the valve stem. A hand-lever actuator is connected to the external end of the valve stem for manual operation. When the valve stem is turned such that the disc is parallel to the fluid flow,
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Gate valves consist of a solid wedge mounted within the valve body, which is connected to the internal end of the valve stem. A handwheel actuator is connected to the external end of the valve stem for manual operation. When the valve stem is turned completely in the counterclockwise direction, the wedge is raised to
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Gate valves consist of a solid wedge mounted within the valve body, which is connected to the internal end of the valve stem. A handwheel actuator is connected to the external end of the valve stem for manual operation. When the valve stem is turned completely in the counterclockwise direction, the wedge is raised to
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Globe valves consist of a solid disc mounted within the valve body, which is connected to the internal end of the valve stem. A handwheel actuator is connected to the external end of the valve stem for manual operation. When the valve stem is turned completely in the counterclockwise direction, the disc is raised to
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water is used as working fluid that transports thermal energy between conditioned space and A/C plant. Chilled water is circulated for cooling while Hot water is circulated through coils for space heating. As only water is supplied by HVAC plant to the space, Fresh air has to be supplied by another unit to maintain Indoor
Air is used as the media in an all air system. Air transports thermal energy from the conditioned space to the HVAC plant. As shown in Figure , In these systems air is processed in the A/C plant namely AHU (Air Handling Unit). AHU consists of Dampers, Mixing chambers, Filters, Cooling/ Heating coils, Humidifiers, Fans/
A cooling tower is a specialized heat exchanger in which air and water are brought into direct contact with each other in order to reduce the water’s temperature. As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower. Cooling tower acts as the cooling
is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. Usually enclosed in a large insulated box containing fans/blowers , dampers, filter,heat exchangers (evaporator), humidifiers , mixing box and its controls. Used to control temperature , humidity , air movement and air cleanliness TYPES OF AIR HANDLING UNIT (AHU)
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