• phone +86 28 81511655
  • email sales@sc-shield.com
  • linketin1
  • youtube1
  • facebook1
  • twitter1
  • 1-2CN | qRU
    • English
    English French German Portuguese Spanish Japanese Korean Arabic Irish Greek Turkish Italian Danish Romanian Indonesian Czech Afrikaans Swedish Polish Basque Catalan Esperanto Hindi Lao Albanian Amharic Armenian Azerbaijani Belarusian Bengali Bosnian Bulgarian Cebuano Chichewa Corsican Croatian Dutch Estonian Filipino Finnish Frisian Galician Georgian Gujarati Haitian Hausa Hawaiian Hebrew Hmong Hungarian Icelandic Igbo Javanese Kannada Kazakh Khmer Kurdish Kyrgyz Latin Latvian Lithuanian Luxembou.. Macedonian Malagasy Malay Malayalam Maltese Maori Marathi Mongolian Burmese Nepali Norwegian Pashto Persian Punjabi Serbian Sesotho Sinhala Slovak Slovenian Somali Samoan Scots Gaelic Shona Sindhi Sundanese Swahili Tajik Tamil Telugu Thai Ukrainian Urdu Uzbek Vietnamese Welsh Xhosa Yiddish Yoruba Zulu Kinyarwanda Tatar Oriya Turkmen Uyghur
    Leave Your Message
    China JYFJS-011 Aluminum Alloy Electromagnetic Gas Emergency Shut-off Valve - Top Suppliers & Factory
    Hot Products
    8001A-1.jpg
    Gas detector Solenoid valve
    Solenoid valve

    China JYFJS-011 Aluminum Alloy Electromagnetic Gas Emergency Shut-off Valve - Top Suppliers & Factory

    Product Overview

     

    The JYFJS-011 emergency shut-off valve, manufactured by our factory in China, is designed to enhance gas safety by providing reliable shut-off for gas pipelines. This gas emergency shut-off valve seamlessly integrates with gas alarm systems and fire protection modules, offering both automatic and manual emergency shut-off capabilities. Compliance with safety handling standards is ensured, as the valve must be manually opened to adhere to gas incident management requirements.

     

    Application

     

    This versatile leak detector is extensively utilized in various industries including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a leading supplier in the market, we prioritize safety and efficiency in gas management solutions from our factory in China.

      Contact us
      Product Details

      Working Principle and Structural Diagram
      JYFJS-011 (2)
      • 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.
      JYFJS-011 (3)
      Serial No. Area 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
      Q How does the solenoid shut-off valve work under normal operating conditions?
      Under normal operating conditions, the valve remains in the open position without requiring any power supply. It only closes when it receives a shut-off signal, such as a DC pulse voltage triggered by a gas leak alarm, making it energy-efficient and reliable for daily use.
      Q What triggers the valve to close automatically?
      The valve closes automatically when the connected alarm system detects a gas leak and sends a DC pulse voltage to the solenoid coil. This energizes the coil and drives the valve to close quickly, cutting off the gas supply and entering a self-locking state.
      Q How long is the DC pulse voltage released by the alarm's capacitor?
      When a gas leak is detected, 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 lock it in the closed position to prevent further gas flow.
      Q How can the valve be reopened after it has been closed and self-locked?
      After the valve enters the self-locking state following a closure, it can only be reopened through manual operation using the Reset Device (component #6). Once manually reset, the valve returns to the open position and is ready to close again upon the next shut-off signal.
      Q What is the role of the permanent magnet and spring in the valve mechanism?
      The valve's operation is based on the interaction of three forces: the instantaneous electromagnetic force from the coil, the permanent magnetic force, and the spring force. Together, these forces enable pulse-driven valve closing, automatic self-locking, and manual reopening — ensuring reliable and precise control without continuous power.
      Q What are the main structural components of this solenoid shut-off valve?
      The valve consists of 9 key components: 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 safe, efficient, and durable gas shut-off performance.

      Make an Free Consultant

      Your Name*

      Phone Number

      Country

      Remarks*