Collection:Plastic Solenoid Valves

Plastic solenoid valves are known for their corrosion resistance. Unlike metal valves, which can corrode over time when exposed to certain chemicals or water, plastic valves maintain their integrity, ensuring a longer lifespan and consistent performance. This is especially beneficial in applications involving aggressive or corrosive fluids.

Plastic is also a lightweight material, which makes these valves easier to handle and install. This can lead to reduced shipping costs and less strain on supporting structures and piping systems. Additionally, the installation process is often simpler and faster, which can save time and labor costs.

Plastic is generally less expensive than metal alternatives. This cost advantage can be particularly appealing for large-scale projects or applications where a high number of valves are required.

Plastic valves also offer excellent insulation properties, which can be crucial in electrical applications. They reduce the risk of electrical conductivity and provide a safer working environment for personnel.

The primary limitation to plastic solenoid valves is that they typically cannot handle temperatures above 60 °C (140 °F). Higher temperatures will cause the valve's body to deform, which leads to leaks and failure.

Common applications for plastic solenoid valves

• Water treatment and purification
• Chemical processing
• Medical and dental equipment
• Food and beverage industry
• Irrigation systems
• Aquariums and fish tanks
• Automotive fluid control
• Laboratory equipment
• Inkjet printing systems
• Pneumatic systems
• HVAC systems
• Swimming pools and spas
• Car wash systems
• Pharmaceutical manufacturing
• Fuel handling systems

Selecting the right plastic 2-way solenoid valve

When shopping for a plastic 2-way solenoid valve, it is important to consider the following selection criteria to ensure that the valve you choose meets the specific needs of your application:

• Connection size: The connection size is typically measured in inches or millimeters, and it is important to ensure that the valve's connection size matches the size of the pipes in your system for a proper fit and to prevent leaks.
• Connection type: The type of connection is another important factor to consider. Plastic 2-way solenoid valves can come with various connection types, such as flanged, threaded (including NPT, BSPP, and others), and push-on. Each type offers different benefits and is suitable for different applications, so it is essential to choose the one that best suits your system's requirements.
  • Flanged: This connection has rims or flanges that bolt together, often used for strong, high-pressure connections and large pipes.
  • Threaded: This connection has screw-like threads for easy installation, suitable for small valves and moderate pressures, available in different standards like NPT and BSPP.
  • Push-on: This connection allows you to push the valve onto the pipe for a quick, tool-free installation, great for low-pressure systems and easy assembly.
• Voltage: Valves can work with different voltages, and it is important to choose a valve that matches the power supply of your system. Additionally, consider whether the solenoid valve requires a coil with alternating current (AC) or direct current (DC) and select accordingly.
  • AC solenoid coils are typically chosen for applications with a stable AC power supply and can handle voltage fluctuations well. They are generally more suited for stationary applications where the noise level produced by the coil is not a critical factor.
  • DC solenoid coils, being quieter in operation, are often preferred in environments where noise is a concern. They are ideal for battery-powered or mobile applications due to their consistent power draw and compatibility with DC power sources.
• Kv: Kv is a value that indicates the flow rate through a valve at a given pressure drop. It is a measure of the valve's capacity and is important to consider when selecting a valve to ensure it can handle the required flow rate for your application.
• Function: The function of the valve is determined by whether it is normally open, normally closed, or bistable.
  • Normally open valves allow flow when de-energized.
  • Normally closed valves block flow when de-energized.
  • Bistable valves can remain in either open or closed state without continuous power.
• Operation: The operation of the valve can be semi-direct, direct, or indirect.
  • Semi-direct valves are suitable for a range of pressures.
  • Direct valves are typically used for low-pressure applications.
  • Indirect valves require a differential pressure to operate.
• Recommended media: It is essential to select a valve that is compatible with the media you intend to control. The recommended media will be specified by the manufacturer, and it is important to ensure that the valve's materials are suitable for use with your particular fluid or gas.
• Approvals: Depending on the application, certain approvals may be required for safety and compliance. Look for valves that have the necessary approvals for drinking water, gas, or ATEX (for explosive environments) if applicable to your application.