• 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...

  • Type of Relays: Electromechanical

    Type of Relyas: Electromechanical General purpose relays are electromechanical switches, usually operated by electromagnetic coils. General-purpose relays work with AC or DC current and have universal voltages such as 12V, 24V, 48V, 120V an...

  • Electromechanical Relays and Solid State Relays

    Electromechanical Relays and Solid State Relays The relay can be an electromechanical relay or a solid state relay. In an electromechanical relay (EMR), the contacts are opened or closed by magnetic force. Using solid state relays (SSR), th...

  • How to choose a good solenoid valve?

    How to choose a good solenoid valve? Solenoid valve selection should first follow the four principles of safety, reliability, applicability and economy, followed by six aspects of the field conditions (namely, pipeline parameters, fluid p...