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The company was originally incorporated on 28 January 1933, and as Vent-Axia Limited private company on 4 April 1936, to produce and sell ventilation equipment. [2] [3] During the Second World War, the company made fans for 10 Downing Street. [4] In 1946, the company acquired a new factory in Putney with 18,000 square feet (1,700 m 2) of floor ...
An axial fan is a type of fan that causes gas to flow through it in an axial direction, parallel to the shaft about which the blades rotate. The flow is axial at entry and exit. The fan is designed to produce a pressure difference, and hence force, to cause a flow through the fan. Factors which determine the performance of the fan include the ...
These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.
An axial belt-drive exhaust fan serving an underground car park. This exhaust fan's operation is interlocked with the concentration of contaminants emitted by internal combustion engines. Mechanical ventilation of buildings and structures can be achieved by the use of the following techniques: Whole-house ventilation; Mixing ventilation
A State Farm Insurance sign on a destroyed building during the Eaton Fire in Altadena, California, US, on Wednesday, Jan. 8, 2025. (Michael Nigro—Bloomberg)
A father accused of stabbing his teenage daughter to death has reportedly insisted they were just play-fighting in the kitchen at the time. On Tuesday, Jan. 14, Teesside Crown Court in ...
See today's average mortgage rates for a 30-year fixed mortgage, 15-year fixed, jumbo loans, refinance rates and more — including up-to-date rate news.
The earliest stack-motor fan was the Emerson, which was an earlier version of the model that was later called "Heat-Fan", a utilitarian fan with a dropped metal flywheel and blades made of fiberglass and later moulded plastic depending on the model. This fan was produced in numerous different forms from 1962 through 2005 and, while targeted at ...