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In September 2010, following two incidents in Bridgend and Manchester, when children were killed by sliding gates, the UK Health and Safety Executive issued 2 safety notices aimed at gate manufacturers and installers, demanding them to comply with the Annex A of BS EN 12453:2001 standard. [14] [15]
By slide gates at the top of the mould shrouds, If the metal is open-poured, then the metal flow into the moulds is controlled solely by the internal diameter of the metering nozzles. These nozzles are usually interchangeable. Overall casting speed can be adjusted by altering the amount of metal in the tundish, via the ladle slide gate.
Garage door manufacturers typically produce doors fitted with torsion springs that provide a minimum of 10,000 to 15,000 cycles and are guaranteed for three to seven years. One cycle is a single opening and closing sequence. Most manufacturers offer a 30,000-cycle spring.
A sluice gate. A sluice (/ s l u s / SLOOS) is a water channel containing a sluice gate, a type of lock to manage the water flow and water level. It can also be an open channel which processes material, such as a river sluice used in gold prospecting or fossicking.
Some floodgates known as coupures in large levee systems slide sideways to open for various traffic. Bulkhead gates can also be made of other materials and used as a single bulkhead unit. Miter gates are used in ship locks and usually close at an 18° angle to approximate an arch. A sluice gate on the Harran canal: A flood wall gate at Harlan ...
The other technologies are often manufacturer specific. These electromechanical devices come with 24-volt direct-current drive units which can run continuously without generating heat, so electromechanical bar gates can be operated continuously and in an intensive duty cycle. An automatic bar gate can be operated through: Push button; Key Selector