Plastic solenoid valves from 1/2" to 1"

Depending on the design, it is also possible to set various intermediate positions. In this case, water can still flow through the valve, but the reduced opening restricts the flow, thereby lowering the flow rate. Solenoid valves use a small electromagnet to regulate the opening. Unlike simple designs that have to be operated manually, these valves require only an electrical pulse to open or close: when the electromagnet is connected to a power source, it generates a magnetic field whose force acts on the valve closure mechanism, causing it to open. This allows the valve to be integrated into an automatic control system and used with various computer-controlled machines.

Versatile Applications for Plastic Solenoid Valves

Solenoid-operated valves have a wide range of applications. They are frequently used, for example, in domestic and garden installations to control the sprinkling of green spaces. This makes it possible to activate the sprinkling and irrigation of plants at the touch of a button. You can even set up an automatic irrigation system by connecting the valves to a timer or moisture sensors. These components are also widely used in sanitary installations. In toilets, for example, the flushing mechanism can be connected to a sensor. Some products offered by Ventile 24 have drinking water certification. This means they can also be used in applications where the water is intended for human consumption, such as beverage technology. A solenoid valve can be used to control the flow in beverage systems. However, these products are not only used in beverage dispensing systems. They are also used in beverage technology equipment for preparing hot drinks. Many automatic coffee machines are fitted with such valves.

Advantages of Plastic Valves

The plastic used to manufacture these valves is highly robust. It can therefore withstand the pressure inside piping systems. The material is also highly resistant to many other mechanical stresses. Plastic valves are also particularly well suited to use in damp environments. While metal products can rust if they are in constant contact with water without adequate protection, this is not a problem with plastic components. In addition, this material is highly resistant to numerous chemicals. It also does not release any foreign substances into the contents of the pipes, which is an important requirement for applications in food production. Finally, plastic valves are relatively inexpensive.

Valves in Various Designs

If you need a plastic valve with an electromagnetic control system, Ventile 24 is the right place to look. All the products in this range are 2/2-way valves. This means that each valve has just one inlet and one outlet. There are no additional ports, such as a pressure relief port. Furthermore, all products are normally closed (NC). This means that they stop the flow of liquids when no voltage is applied. They open when connected to a power source. Some models offer particularly high flow rates, allowing large volumes of water to pass through the valve despite its compact size. One of the main differences between the products is the size of the connection thread. You can choose from valves with thread sizes of 1/4", 3/8", 1/2", 3/4" or 1". This means that suitable products are available for all common pipe sizes. It is also important to check the pressure range for which the valve is designed.

Selection criteria when buying a plastic solenoid valve:

• Connection diameter
• Flow rate
• Suitability for drinking water or food applications
• Operating pressure

The connection size is another important factor when selecting a valve. You can therefore use the filter function when searching for products to display all valves with a specific thread size. These are cylindrical Whitworth pipe threads for joints that do not seal on the thread, in accordance with ISO 228-1. The inch designations do not correspond to the actual internal or external diameter. This is because the inch measurement originally referred to the internal diameter. Over time, however, the use of thinner materials led to an increase in the internal diameter, while the external diameter remained unchanged for compatibility reasons. If in doubt, consult the relevant tables to determine the correct connection thread. For initial guidance, the bore diameter in millimetres is shown alongside each thread designation below:

• G 1/4" – 11.80 mm
• G 3/8" – 15.25 mm
• G 1/2" – 19.00 mm
• G 3/4" – 24.50 mm
• G 1" – 30.75 mm