Vent control solenoids are electromagnetic actuators used to open and close vents in air conditioning and ventilation systems. They typically have low voltage coils and can be controlled manually or by an automated system. These devices work by sending a suitably rated voltage to the coil, causing a magnetic field to form around it, which pulls the plunger into the coil core and opens the vent. Most designs only provide the opening motion, with a return spring or system air pressure used to close the vents again. They are commonly used in home, industrial, and automotive air circulation systems.
A vent control solenoid is an electromagnetic actuator used to open and close gates or louver-type vents and air conditioning. These solenoids typically have low voltage coils and are controlled manually or by an automated system. The vent solenoid usually only produces the motivation to open, with a return spring or system air pressure used to close the vents again. Vent solenoids are air flow control devices commonly used in home, industrial, and automotive air circulation systems. The term “reliever solenoid” can also be used to describe solenoid actuated relief valves on pressure chambers.
Shutter or louvre vents are widely used as entry and exit points for air circulation in ventilation and air conditioning systems. The vents can be of the static type that always stays open, be adjustable to a range of positions, or have a two-position, open or closed design. The latter type of vent is typically operated by a vent control solenoid via a hand switch or the control loop of an automated ventilation system. In some cases, the solenoid may be fitted with a mains voltage coil, but most have low voltage coils, typically rated between 12 and 24 volts, many powered by solar-charged batteries. Where vents are used as entry or exit points to rooms, the solenoid is usually mounted within the vent assembly where it is not visible.
These devices work the same way as all solenoids and come with a standard cored wire coil and metal plunger. A suitably rated voltage is sent to the coil via a control circuit, causing a magnetic field to form around it. This magnetic force then rapidly pulls the plunger into the coil core. The vent operating arm is connected to the plunger via a linkage, the movement of which opens the vent as the plunger moves.
Most designs of vent control solenoids only provide the opening motion for the vent and a return spring is then used to close the vents again when power is removed from the solenoid. In some cases, the vents can also be closed by the pressure of the air passing through the system. Common applications for the vent control solenoid as an airflow controller are industrial, domestic, and automotive air conditioning and ventilation systems. The vent control solenoid identifier is often used to describe manual or automated pressure relief valves. These valves are installed on pressure vessels where they act as a purge or relief device to relieve pressure inside the vessel when repairs or maintenance are required.
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