• Easy way to judge the working performance of relays

    Turn on the ignition switch, and then use your ears or stethoscope to listen to whether there is a sound in the control relay, or feel whether the relay is vibrating with your hands. If there is, the relay is basically working normally, and...

  • How automotive relays work

    When a certain voltage or current is applied to both ends of the electromagnetic relay coil, the magnetic flux generated by the coil passes through the magnetic circuit composed of the iron core, yoke, armature, and working air gap of the m...

  • Solenoid valve approvals

    Solenoid valveapprovals Depending on the application, certain approvals for the valve may be needed. Having a valve with a certain approval ensures it meets the demands of the application. Common approvals are: UL/UR: Underwriters Laborator...

  • 3 Solenoid valve types

    3 Solenoid valve types Normally closed solenoid valve For a normally closed solenoid valve, the valve is closed when de-energized and the media cannot flow through it. When current is sent to the coil, it creates an electromagnetic field th...

  • Working principle of solenoid valve-direct action

    Working principle of solenoid valve-direct action The direct-acting (direct-acting) solenoid valve has a simple working principle, as shown in figure below. For normally closed valves, in the absence of power, the plunger (E) plugs the orif...

  • Electromechanical Relays

    Electromechanical Relays The basic components and functions of electromechanical relays include: Frame: A heavy frame that contains and supports all parts of the relay. Coil: The wire is wound on a metal core. Wire coils generate electromag...

  • Relay contact life

    Relay contact life The service life of a relay depends on its contacts. After the contacts are burnt, the relay contacts or the entire relay must be replaced. Mechanical life refers to the number of operations (opening and closing) that a c...

  • How the relay works

    How the relay works A relay is a switch that opens and closes a circuit by electromechanical or electronic means. The relay controls one circuit by opening and closing the contacts in another circuit. As shown in the relay diagram, when the...