Electronic Proportional Flow Control Valve for Automated Industrial Gas Mixing and Process Systems
Product Description:
The electronic proportional flow control valve represents the pinnacle of precision in gas management, designed for fully automated industrial processes such as laser cutting, atmospheric control in heat treatment furnaces, and precise gas mixing for chemical synthesis. This advanced solenoid valve differs from simple on/off types by offering precise, variable flow modulation based on an input signal, typically 4-20 mA or 0-10 VDC. The core of its operation is a sophisticated control mechanism where an electronic controller sends a signal to a solenoid, which adjusts the position of the valve plunger with extreme accuracy. This allows for infinite positioning between fully open and fully closed, enabling real-time, software-controlled adjustments to the gas flow rate. The valve assembly is often constructed from stainless steel and is designed for integration into complex PLC (Programmable Logic Controller) or SCADA (Supervisory Control and Data Acquisition) systems.
Manufacturing these valves requires a clean, controlled environment to ensure the reliability of its sensitive electronic and mechanical components. The production line involves the precise calibration of the solenoid's magnetic force against the spring tension and gas pressure. Each valve is tested across its entire signal range to map its flow characteristics, ensuring a linear response between the input signal and the output flow. This data is often supplied as a calibration sheet. For engineers designing automated systems, this valve provides unparalleled control, allowing them to create recipes that dynamically adjust gas flows to optimize product quality, improve efficiency, and ensure repeatability in high-tech manufacturing environments. It transforms a manual process into a smart, data-driven operation.
Bullet Points:
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Precise Flow Modulation: Provides variable, analog control of gas flow based on an electronic input signal, not just simple on/off function.
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PLC Integration Ready: Designed to be seamlessly controlled by industrial automation systems via standard analog signals.
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Rapid Response Solenoid Valve: Offers fast and accurate adjustments to maintain consistent process conditions.
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High Repeatability: Engineered for consistent performance, ensuring the same signal always produces the same flow rate.
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Durable Industrial Construction: Built to perform reliably in demanding industrial environments with electrical conduit connections.
Specific Application Scenario:
In a laser cutting facility, this valve is used to control the flow of oxygen as an assist gas. The CNC controller adjusts the signal to the valve in real-time, increasing the oxygen flow for cutting thick steel plates and reducing it for thinner materials or when switching to nitrogen for cutting aluminum, ensuring optimal cut quality and speed throughout the job.
Specifications:
| Component | Part Description |
| 1. Mounting Cup | (Portable gas stove valve) Special mounting cup |
| 2. Outer Gaske | Buna |
| 3. Inner Gasket | Buna |
| 4. Stem | (Portable gas stove valve) Special stem |
| 5. Spring | Stainless steel |
| 6. Housing | (Portable gas stove valve) Special Housing |
Exhibition:
We often go to India, Mexico, Algeria for aerosol valve exhibitions. Our potable butane gas stove valves have been exported to Mexico, Ecuador, Viet Nam, India, Colombia, Russia, Ukraine, Indonesia, Peru, Philippines and other countries.
Strict quality control system (100% leaking test+ SGS check + QC check)
Short lead time ( 10 days for OEM )
Competive price
Customerize packing accepted
One-stop Service
Packing and Delivery
Carton size: 560*370*220mm
Gas valve: 1500 pieces / carton
Red cover: 2500 pieces / carton
We can export the portable gas stove valves to you by LCL container and full 20ft, 40ft, 40HC container. We can use carton packing and pallet packing.
FAQ:
What is the difference between a proportional solenoid valve and a standard on/off solenoid valve?
A standard solenoid valve is a digital device—it is either fully open or fully closed. A proportional valve is an analog device that can open to any position between 0-100%, allowing for precise control of the flow rate.
What input signal is required to operate this flow control device?
The most common industrial control signals are 4-20 mA current loops or 0-10 VDC voltage signals. The specific model must be ordered to match your control system's output.
How is the flow rate calibrated for this control mechanism?
Each valve is individually calibrated at the factory. A calibration sheet is provided that shows the relationship between the input signal (e.g., mA) and the resulting flow rate (e.g., SLPM) for a specific gas and pressure.
Can this valve be used for any gas?
The valve must be selected for compatibility with the specific gas. The materials and seat design are optimized for different gas properties. Using it with an incompatible gas can lead to failure or safety hazards.
Does the valve require a specific pressure to operate correctly?
Yes, proportional valves have a minimum and maximum pressure differential (delta P) requirement to function as calibrated. The flow calibration data is valid only for the inlet pressure specified. A pressure regulator is often installed upstream.
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