Safety valve works and functions

Safety valve in the system play a safety role. When the system pressure exceeds the specified value, the safety valve Ting open, the system part of the gas into the atmosphere, the system pressure does not exceed the allowable value, so as to ensure that the system is not over pressure and accidents. Safety valve, also known as relief valve. The figure shows several typical safety valve structure. Figure a piston-type safety valve, spool is a flat. When the pressure exceeds the safety value determined by the spring force, the piston A is pushed open and a part of the compressed air is discharged into the atmosphere from the valve port. When the pressure of the air source is lower than the safety value, the spring is driven Pistons down, close the valve port. Figure b and c, respectively, for the ball valve and diaphragm safety valve, working principle and piston exactly the same. These three safety valves are spring to provide control, adjust the spring preload, you can change the safety value of the size, so called direct acting safety valve. Figure d for the pilot-operated safety valve, a small direct acting valve to provide control of pressure on the diaphragm, the diaphragm is the core of the hard core, pressure on the valve seat. When the air pressure A greater than the safety pressure, the spool open, compressed air from the left output hole into the atmosphere. Diaphragm-type safety valve and pilot-operated safety valve pressure characteristics better, sensitive action; but the maximum opening force is relatively small, that is, poor flow characteristics. Practical application, should be based on the actual need to choose the type of safety valve, and according to the maximum displacement of its choice of path.

Product categories of Rental LED Display includes MC Flex Indoor Rental LED Display and MC Flex Outdoor Rental LED Display. Rental Led DisplayRental Led Screen suppliers/factory. 


LED technology is the latest and the best in terms of the audio visual technologies out there and it is still evolving. There is a strong emphasis in making LED displays energy efficient, cost efficient and light weight apart from other quality requirements. Hence, LED cabinets are also now expected to be lighter in weight. Resulting to the gradual shift from the iron cabinet, aluminum cabinet, to the cast-aluminum and die cast aluminum as the weight of the cabinet is lighter. 


Cast aluminum and die cast-aluminum cabinets are the latest of the cabinets used for LED casing. Rental LED display are quite flexible for easy packaging and lifting, high refresh rate, gray scale are widely applied to the stage renting. They are easy and simple to be installed and thus help you save on precious time and manpower. Cabinet splicing and wiring connection is fast and reliable. Also Rental LED display can be easily dismantled.

 

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