Cost effective fuel tank pressure relay

The sensitivity and on-off adjustment range of the pressure relay, when the system pressure rises to the set value of the pressure relay, the pressure at which the pressure relay acts to connect the electrical signal is called the opening pressure; when the system pressure decreases, the pressure at which the pressure relay resets and cuts off the electrical signal is called the opening pressure. is the closing pressure. The difference between the opening pressure and the closing pressure is called the sensitivity of the pressure relay. The smaller the difference, the higher the sensitivity. In order to prevent the pressure relay from being on and off when the system pressure fluctuates, a certain difference between the opening pressure and the closing pressure is required. If the difference is adjustable, it is called the on-off adjustment interval.

The pressure relay is a hydraulic electrical conversion element that uses the pressure of the liquid to open and close electrical contacts. When the system pressure reaches the set value of the pressure relay, an electrical signal is sent to make the electrical components (such as electromagnets, motors, time relays, electromagnetic clutches, etc.) act, so that the oil circuit is depressurized and reversed, and the actuators realize sequential actions. Or turn off the motor to stop the system from working for safety protection.

The pressure relay is the element that makes the electric contact act when the fluid pressure reaches the predetermined value in the Hydraulic System. Pressure relay can also be defined as the hydraulic components that convert the pressure into electrical signal. According to the pressure design needs of customers, by adjusting the pressure relay, the function of outputting an electrical signal at a set pressure can be realized.

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