The electromagnetic components of an electromagnetic valve consist of a fixed iron core, a moving iron core, coils, and other components; The valve body is composed of a slide valve core, slide valve sleeve, spring base, etc., and is composed of an electromagnetic coil and a magnetic core. It is a valve body that contains one or several holes. When the coil is powered on or off, the operation of the magnetic core will cause the fluid to pass through the valve body or be cut off, in order to change the direction of the fluid. The stainless steel gaseous ammonia solenoid valve consists of fixed iron core, moving iron core, coil and other components. When the coil is powered on or off, the operation of the magnetic core will cause the fluid to pass through the valve body or be cut off, in order to change the direction of the fluid.
Below, the editor will briefly introduce several types of solenoid valves and their working principles?
1. Working principle of pilot operated ammonia explosion-proof solenoid valve: The ammonia pilot operated piston solenoid valve requires that the medium passing through the solenoid valve must have pressure (this type of valve is not suitable if the medium does not have pressure). Our pilot operated solenoid valve needs to ensure that the medium has a pressure of 0.1 kilograms in order to work properly. There are two sources of force for the opening of the main piston of the ammonia pilot piston solenoid valve: one is the magnetic force generated after being energized, and the other is the pressure push of the medium. These two forces must exist simultaneously to ensure the normal operation of the pilot piston explosion-proof solenoid valve, and neither is indispensable.
2. Working principle of direct acting stainless steel ammonia solenoid valve: When powered on, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat and open the valve; When the power is cut off, the electromagnetic force disappears, and the spring presses the closing member against the valve seat, causing the valve to close.
3. Working principle of step-by-step direct action ammonia solenoid valve: It is a principle that combines direct action and pilot action. When there is no pressure difference between the inlet and outlet, after being energized, the electromagnetic force directly lifts the pilot small valve and the main valve closing member upward in sequence, and the valve opens. When the inlet and outlet reach the starting pressure difference, after being energized, the electromagnetic force pilot small valve, the lower chamber pressure of the main valve rises, and the upper chamber pressure drops, thereby using the pressure difference to push the main valve upwards; When the power is cut off, the pilot valve uses spring force or medium pressure to push the closing member downwards, causing the valve to close.