Safety valve overload protection, for example, the whole Kai-type high pressure safety valve is composed of the valve body, the valve and the spring and the adjustment screw, the inlet port and the same system pressure oil, the oil outlet and return the same way, when the system When the pressure is greater than the spring force exerted by the valve core, the valve core will open and the system pressure oil will flow back to the pump box through the valve port. When the system pressure is lower than the setting pressure of the relief valve, The force is less than the spring force exerted by the valve core. In this case, the valve core is pressed against the valve seat by the action of a spring, and the adjusting screw can change the spring force of the spring to adjust the opening pressure of the relief valve. Safety valve is a kind of safety protection valve, its opening and closing parts are normally closed under the external force. When the medium pressure in the equipment or pipeline rises and exceeds the specified value, it will be automatically turned on. The medium is discharged to the outside of the system Medium pressure in pipe or equipment exceeds specified value. Safety valves are automatic valves, mainly for boilers, pressure vessels and pipes, the control pressure does not exceed the specified value, the personal safety and equipment plays an important protective role. Safety valve in the system play a safety role. When the system pressure exceeds the specified value, the safety valve is opened to vent some of the gas / fluid in the system to the atmosphere / piping so that the system pressure does not exceed the allowable value to ensure that the system will not cause an accident due to excessive pressure. Safety valve, also known as relief valve, or pressure relief valve. When the pressure exceeds the safety value determined by the spring force, the piston A is pushed open and 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. This valve sealing surface to be clean.
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