Wholesale China JYFJS-011 Aluminum Alloy Electromagnetic Shut-off Valve - Reliable Gas Safety Solution from Trusted Suppliers and Factory Manufacturer, Suppliers

Product Overview

 

Introducing the JYFJS-011, a cutting-edge gas emergency shut-off valve manufactured by our China-based factory. Specifically designed for the safe emergency shut-off of gas pipelines, this valve is a crucial component in gas safety management. It seamlessly integrates with gas alarm systems and fire protection devices, allowing for both automatic and manual emergency shut-off of gas sources. Our product adheres to strict safety handling standards, ensuring compliance with gas incident protocols by requiring manual intervention to open the valve.

 

Application

 

Our gas emergency shut-off valve is a vital safety solution widely utilized across various industries, including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As leading suppliers in China, we focus on delivering high-quality products that meet the rigorous demands of these sectors.

Product Description

Working Principle and Structural Diagram
JYFJS-011 (2) Working Principle and Structural 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.
JYFJS-011 (3) Structural Components
Serial Number Area Name
1Valve body
2Diaphragm
3Valve cover
4Spring
5Actuator
6Reset Device
7Dust cover
8Moving iron core
9Sealing ring
Frequently Asked Questions
What is the normal operating state of this shut-off valve?

The valve is designed as a normally open shut-off valve with a holding control mode. It remains open without power during normal operation and allows continuous gas flow.

How does the valve respond when a gas leak occurs?

When a leakage accident is detected, the alarm triggers and delivers an instantaneous DC pulse voltage to energize the coil. This rapidly drives the valve closed to cut off the gas source and enters a self-locking state.

What is the duration of the shut-off pulse voltage?

The alarm's capacitor continuously releases a 3-second DC pulse voltage during a gas leak to energize the coil, ensuring secure valve closure and self-locking.

Can the valve be reopened manually after an automatic closure?

Yes. After closing, it can be manually opened via the reset device. If another shut-off signal is received later, it will automatically close again.

What forces enable the pulse drive and self-holding mechanism?

The system utilizes the combined interaction of instantaneous coil electromagnetic force, permanent magnetic force, and spring force to perform pulse drive, automatic closure, and manual self-holding functions.

What are the main structural parts of the valve assembly?

The assembly includes nine key parts: Valve body, Diaphragm, Valve cover, Spring, Actuator, Reset Device, Dust cover, Moving iron core, and Sealing ring.

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