Solenoid Valve Coils

A solenoid coil is a tightly wound coil of metal wire, typically copper or aluminum, wrapped around a core, often made of a ferromagnetic material like iron. When an electrical current flows through the coil, it generates a magnetic field. This magnetic field interacts with the core, producing linear motion. This motion is used to control valves, actuators, and other mechanical components in a wide range of applications, including medical devices, automotive products, aviation systems, and irrigation systems. They are also commonly used to create locking mechanisms for doors and other access points. Solenoid valve coils are durable, low-maintenance, and can tolerate extreme temperatures, making them essential in various industries.

Function of Solenoid Coil

The primary function of a solenoid coil is to convert electrical energy into mechanical energy to initiate linear motion. A valve plunger is placed inside the valve coil. When the coil receives electric current, the line of magnetic flux turns a plunger into an electromagnet. The flux forces the plunger to slide further into the coil which causes the opening of the solenoid valves.

Causes of Failures of Solenoid Coils

Solenoid valve coils can fail due to various factors. Applying excessive or insufficient voltage can damage or burn the coil. Electrical incidents or spikes may also cause damage to the coil. Other factors include incorrect current, rust, corrosion, debris in the system, irregular pressure, power failures, and missing components. Once the coil is burned or damaged, it usually needs to be replaced.

Types of Solenoid Valve Coils

While all solenoid coils operate on the same basic principle of generating an electromagnetic field, they come in various types with different functions, materials, and designs to suit specific applications.

These are the main types of the solenoid coil:

Tape Wrapped Solenoid Coil

Tape-wrapped solenoid coils are wrapped with an insulated tape for added protection against heat, flames, and punctures. This makes them suitable for harsh environments.

Encapsulated or Molded Solenoid Coil

Encapsulated or molded solenoid coils provides excellent insulation and protection against moisture, vibration, and chemical as are encased in a protective material like epoxy resin.

DC C - frame Solenoid Coil

Designed with a C-shaped frame, DC C-frame solenoid valve coils are compact and suitable for applications with limited space.

AC Laminated Solenoid Coil

AC laminated solenoid coils are designed for use with alternating current (AC) power sources. They feature a laminated core to reduce energy losses and improve efficiency.

DC D - Frame Solenoid Coil

DC D-frame solenoid coils have a D-shaped frame, offering a balance of compactness and performance. They are commonly used in hydraulic and pneumatic systems.

Rotary Solenoid Coil

Unlike other solenoid coils that produce linear motion, rotary solenoid coils generate rotational motion, making them deal for applications that require rotary movement, such as switches and actuators.

Linear Solenoid Coil

Linear solenoid coils are commonly used to control valves, locks, and actuators. Their ability to produce precise linear movement makes them essential in various automation and control systems.

Mistakes to Avoid When Purchasing Solenoid Valve Coils

Choosing the right solenoid valve coil is crucial for optimal performance and safety. Here are some common mistakes to avoid:

• Ignoring Compatibility: A coil that is not compatible with your valve can lead to malfunctions and premature failure. Ensure the coil for solenoid valve is compatible with the specific valve type and application requirements.
• Not Checking Electrical Specifications: Incorrect voltage or current ratings can lead to coil or valve damage. Confirm that the coil's voltage and current ratings match your system's power supply. You might need a 12v solenoid coil, a 24v solenoid coil, or another voltage depending on your setup.
• Not Considering Environmental Factors: The performance of solenoid valve coils can be affected by temperature and humidity. Select coils with appropriate IP and temperature ratings for the operating environment in Australia.
• Not Assessing Quality and Certifications: Choosing low-quality coils can compromise safety and reliability. Look for coils for solenoid valves that meet Australian industry standards and certifications to guarantee reliability and safety.

Featured Configurations 12VDC, 24V Coils & More

RS AU offers a wide range of solenoid valve coils in various configurations to meet diverse needs. Popular options include:

• 12VDC Solenoid Coils: Commonly used in automotive and low-voltage applications.
• 24V Solenoid Coils: Frequently found in industrial automation and control systems.
• DC Solenoid Coils: Available in various voltage ratings to suit different DC power sources.
• Hydraulic Solenoid Coils: Specifically designed for hydraulic applications, offering high performance and durability. We offer a range of hydraulic solenoid coil and hydraulic valve coil options.

Industry Applications

Solenoid valve coils play crucial roles in various industries by enabling precise control of fluid flow and automation of processes. They are vital components in industries such as:

• Automotive: Precise control of fuel injection, transmission systems, and braking systems.
• Aerospace: Reliable operation of hydraulic and pneumatic systems in aircraft.
• Medical: Accurate control of fluid flow in medical devices and equipment.
• Agriculture: Efficient irrigation systems and automated greenhouse controls.
• Manufacturing: Controlling pneumatic and hydraulic systems in automated production lines.
• Pharmaceutical: Maintaining sterile conditions and precise fluid control in drug production.
• Water Treatment: Managing and controlling water flow and treatment processes.

Your Trusted Solenoid Valve Coils Supplier & Manufacturer

RS Group is Australia’s trusted supplier for solenoid coils. We offer a range of solenoid valve coils in various configurations and voltage ratings, including 12v, 12vdc, 24v and 24vdc from brands such as Bosch, Emerson, and our very own RS PRO.

Browse our extensive selection online and enjoy competitive prices and fast, reliable delivery Australia-wide. Learn more about our delivery services and fees on our Delivery page.