Solenoid Valve Selection Guide for Environmental Treatment: How to Choose the Right Solenoid Valve for Harsh and High-Frequency Applications

Solenoid Valve Selection Guide for Environmental Treatment: How to Choose the Right Solenoid Valve for Harsh and High-Frequency Applications

As global environmental awareness increases, environmental treatment equipment has become an essential part of industrial production. From flue gas desulfurization and denitrification to industrial dust removal and wastewater treatment, every step relies on precise, efficient automated control. In these harsh environments, the solenoid valve, as the core actuation component of the pneumatic system, has its performance and reliability directly impacting the system's operational efficiency and compliance.

Faced with the challenges of corrosive media, high-frequency pulsing, and harsh environments, selecting a solenoid valve that is specific to the environmental treatment industry is crucial. This article will provide a detailed look at how to choose the most suitable AirTAC solenoid valve products to build a stable and reliable environmental automation system.

 

The Unique Demands of the Environmental Treatment Industry

 

Applications in the environmental treatment sector place demands on solenoid valves that far exceed those of general-purpose equipment:

  • Harsh and Corrosive Environments: Wastewater treatment and desulfurization/denitrification systems often come into contact with acids, alkalis, chemical reagents, and high humidity. Solenoid valves must have excellent corrosion resistance.

  • High Frequency and High Reliability: In dust removal systems, pulse jet valves need to open and close at an extremely high frequency (several times per second) to clear dust from filter bags. This requires solenoid valves with an ultra-long cycle life and fast response capabilities.

  • Continuous, Stable Operation: Environmental equipment typically needs to run 24/7. Any failure could lead to reduced system efficiency or even shutdown. Therefore, solenoid valves must be extremely durable.

  • Precision Control: In processes like chemical dosing and aeration, solenoid valves must provide precise control over flow rate and timing.

 

Key Technical Parameters for Environmental Valves

 

To address these challenges, when selecting a solenoid valve, you must focus on the following key technical parameters:

  • Materials and Seals: For corrosive environments, the valve body can be made of stainless steel or specially treated engineered plastics. Seals should be made of corrosion-resistant materials like FKM or EPDM.

  • Protection Class (IP): For equipment in outdoor or humid environments, the solenoid valve's protection class must be IP65 or higher to prevent dust and water ingress.

  • Max Action Frequency: For pulse jet dust collection applications, the solenoid valve must be able to handle an action frequency of 5 times/second or higher.

  • Cycle Life: Solenoid valves for high-frequency applications need to have a life of over 50 million cycles to ensure long-term reliability.

  • Working Pressure: Must be matched to the system pressure, typically between 0.15 and 0.8 MPa.

  • Voltage: Can be selected as DC24V or AC220V depending on the control system.

 

Recommended AirTAC Solenoid Valve Models for Environmental Treatment

 

With its comprehensive product line and excellent quality, AirTAC offers several ideal solenoid valve products for the environmental treatment industry.

 

1. AirTAC DM/DF Series Pulse Jet Solenoid Valves

 

This series is a professional product designed specifically for bag-type dust collectors.

  • Reason for Recommendation: The DM/DF series is the perfect solution for high-frequency, high-reliability applications. Its unique spool design and coil structure can withstand extremely high action frequencies (up to 5 times/second) and have an ultra-long service life (over 50 million cycles). Its special protective design also allows it to adapt to harsh dusty environments.

  • Typical Applications:

    • Pulse jet system for bag-type dust collectors

    • Flue gas desulfurization and denitrification systems

 

2. AirTAC 2V Series Stainless Steel Solenoid Valves

 

This series is specifically designed for fluid control and corrosive environments.

  • Reason for Recommendation: The stainless steel body models of the 2V series (such as the 2V025-08S) can resist the erosion of corrosive media. This normally closed structure is often used to control the on/off of fluids in pipelines, ensuring the precision and safety of chemical dosing.

  • Typical Applications:

    • Chemical reagent dosing in wastewater treatment plants

    • Water treatment and filtration systems

    • Pneumatic valve control in boiler rooms

 

3. AirTAC 4V/4A Series Solenoid Valves

 

As AirTAC's general-purpose workhorse, this series is also widely used in environmental automation.

  • Reason for Recommendation: For general pneumatic control that doesn't involve direct contact with corrosive media, such as controlling pipeline valves and pneumatic actuators, the 4V/4A series can easily handle the job due to its high reliability and wide range of specifications. Its compact design and convenient manifold integration capability also provide convenience for complex control systems.

  • Typical Applications:

    • Pneumatic control cabinets for environmental equipment

    • Pneumatic control of fans and dampers

    • Controlling large conveyor belt deflectors

 

Building a Complete Environmental Automation Solution

 

Selecting the right solenoid valve is a crucial step in building an efficient automated system. To ensure optimal performance and reliability, it's recommended to use AirTAC's full pneumatic solution. From Air Preparation Units (F.R.L.) with moisture-proof filter functions to ensure clean, dry compressed air, to stainless steel cylinders and quick-connect fittings, all components are meticulously designed and tested to achieve perfect compatibility and synergy.

AirTAC solenoid valves, with their exceptional performance, strict quality control, and adaptability to harsh environments, have earned widespread trust in the environmental treatment sector. By choosing the right valves, you can inject powerful momentum into your systems, achieving higher efficiency, more stable compliance, and lower maintenance costs.

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