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    Electromagnetic Shut-off Valve JYFJS-011 Series - China Suppliers & Factory for Gas Safety Solutions
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    Gas detector Solenoid valve
    Solenoid valve

    Electromagnetic Shut-off Valve JYFJS-011 Series - China Suppliers & Factory for Gas Safety Solutions

    Product Overview

     

    The JYFJS-011 is an advanced gas emergency shut-off valve designed for critical gas pipeline applications. As a leading product from our factory, this valve plays a vital role in enhancing gas safety by enabling automatic or manual shut-off in emergencies. It integrates seamlessly with gas alarm systems and fire protection modules, ensuring prompt response to gas leaks. To comply with safety handling standards and gas incident management protocols, the valve requires manual operation to open.

     

    Application

     

    This gas emergency shut-off valve is essential across multiple industries, including petroleum, chemicals, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a trusted supplier in China, we are committed to providing high-quality solutions that meet the diverse needs of our clients.

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      Product Details

      Working Principle and Structural Diagram
      JYFJS-011 Working Principle Diagram
      🔵

      This valve is a normally open shut-off valve with a holding control mode. It remains open without power during normal operation and can automatically close upon receiving a shut-off signal. After closing, it can be manually opened and will automatically close again upon receiving another shut-off signal.

      ⚡

      When a leakage accident occurs, the alarm system sounds an alert, instantly providing a DC pulse voltage to the solenoid valve. The coil is energized, driving the valve to quickly close, cutting off the gas source and entering a self-locking state.

      🔒

      When a gas leak occurs, the alarm's capacitor continuously releases a 3-second DC pulse voltage, energizing the coil, closing the valve to cut off the gas supply, and entering a self-locking state.

      🔧

      The interaction of instantaneous electromagnetic force of the coil, permanent magnetic force, and spring force is used to achieve pulse drive, automatic valve closing, and manual valve opening self-holding functions.

      Component Parts List
      JYFJS-011 Structural Diagram
      No. Component Name
      1 Valve body
      2 Diaphragm
      3 Valve cover
      4 Spring
      5 Actuator
      6 Reset Device
      7 Dust cover
      8 Moving iron core
      9 Sealing ring
      Frequently Asked Questions (FAQ)
      Q1 What is the default state of this solenoid shut-off valve during normal operation?
      This valve is a normally open shut-off valve. During normal operation, it remains in the open position without requiring any electrical power. It only closes upon receiving a shut-off signal, which makes it fail-safe for gas supply systems.
      Q2 How does the valve respond when a gas leakage alarm is triggered?
      When the alarm system detects a gas leak, it instantly sends a DC pulse voltage to the solenoid coil. The coil becomes energized, causing the valve to quickly close and cut off the gas supply. The valve then enters a self-locking state to prevent accidental reopening.
      Q3 How long is the DC pulse voltage released by the alarm capacitor?
      When a gas leak occurs, the alarm's capacitor continuously releases a 3-second DC pulse voltage. This duration is sufficient to fully energize the coil, close the valve, and ensure the valve enters its self-locking state to cut off the gas supply.
      Q4 Can the valve be reopened after it has been automatically closed?
      Yes. After the valve automatically closes and enters the self-locking state, it can be manually reopened by the operator. Once reopened, the valve will automatically close again upon receiving the next shut-off signal from the alarm system.
      Q5 What forces are involved in the valve's operating mechanism?
      The valve operates through the interaction of three forces: the instantaneous electromagnetic force of the solenoid coil, the permanent magnetic force, and the spring force. Together, these forces enable pulse-driven actuation, automatic valve closing, and manual valve opening with self-holding capability.
      Q6 What are the main structural components of the JYFJS-011 solenoid valve?
      The JYFJS-011 solenoid valve consists of 9 key components: the valve body, diaphragm, valve cover, spring, actuator, reset device, dust cover, moving iron core, and sealing ring. Each component plays a critical role in ensuring reliable and safe gas shut-off operation.

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