Solenoids

Our wide range of solenoids and solenoid valves include standard and configurable designs in a selection of solenoid styles.  We can also supply modified standard designs to suit your specific applications or unique custom designs for large scale OEMs. 

 

Our range of solenoids are suitable for use in on- and off-highway applications such as:

  • Construction 
  • Agricultural vehicles
  • Materials handling
  • Speciality vehicles
  • Industrial equipment 

At Curtiss Wright, you’ll find a variety of different industrial products such as sensors, joystick controls, faders, and legacy products. To find out further information on any product, read the related documents which feature assemblies and capabilities.

YOU CAN VIEW OUR RANGE OF SOLENOIDS AND SOLENOID VALVES BELOW -

65

Filter Products:

Penny & Giles

What is a Solenoid Valve?

A solenoid valve is an electromagnetic component that converts electrical energy into mechanical work. It is used to control the rate of flow in fluid or air-powered mechanical systems. 

How do solenoid valves work?

Solenoid valves have a coil of wire around a metal core. When you run an electric current through it, a magnetic field forms around the coil and creates linear motion. It effectively converts electrical energy into mechanical power. A solenoid valve comprises a coil, plunger, and sleeve assembly and is mainly used to control liquid or gas flow in a positive, fully-closed, or fully-open mode. It does so with the same principle when the solenoid coil energizes in a normally closed valve, the magnetic field raises the plunger, allowing the flow of material. In a normally open valve, the plunger inside prevents gas or liquid flow when the coil energizes. The magnetic field has positive and negative poles like all magnets do, attracting or repelling material. However, in a solenoid, the electromagnetic field causes the piston to move back and forth. Essentially the solenoid functions by opening and closing a valve when activated. 

Solenoid Valve Benefits:
  • Used to open, close, mix, or direct liquid or gas through the valve.
  • Fast-acting and entirely automated
  • Long service life
  • High reliability
  • Compact design

What is a Solenoid Valve used for?

Solenoids are versatile and used in a variety of applications. Each solenoid design available has the properties that make it useful and the correct component for different applications. Found in automated factory equipment, doorbells, automotive, speakers, control of cleaning processes, and many other industrial settings, such as propane systems and nitrous-injections, also known as solenoid valves. Solenoids are also known as transducer devices that convert energy into linear motion

How can I tell if my solenoid valve is bad?

You can instantly tell a solenoid valve is bad if it fails to open or close or stays partially open. It is also likely to make a humming noise or may have a burned-out coil.  If the coil burns out, it cannot be repaired and must be replaced. When replacing solenoid valves, the electrical supply must match the voltage and frequency of the coil. The coil will display the maximum frequency allowed and lessen the possibility of malfunction. 

Why do solenoid valves fail?

There are a few common malfunctions that may cause solenoid valves to fail. The most common is when a solenoid is first energized, its coil receives a high current that decreases as the plunger closes. If it does not close, it can cause the coil to overheat and burn out. The symptoms are burn marks, cold when powered, and infinite resistance. 

Dirt particles can cause the valve to leak due to tiny particles of cuttings and rust on the seat or the valve's orifices. It's essential to clean the valve parts and make sure the pipes are clean. 

Flow and pressure can cause the valve to malfunction too. If the valve doesn't open or close correctly, it's wise to check if the flow direction matches the valve body's indicators as specified in the valve manual. 

In rare cases, a coil will burn out due to overvoltage. The power supply, voltage, and frequency all need to be checked to ensure they are correct.

It will also cause a problem if there is a damaged seal on the valve. If the valve doesn’t shut off or leaks, inspect the membranes, seals, and O-rings and replace damaged or worn parts. You must use a filter to avoid any risk of malfunction due to solid particles. 

How do I choose a solenoid valve?

Choosing the correct solenoid valve is heavily dependent on the media it will encounter and the application. Many components must be looked at to ensure suitability. 

The traits you should primarily look at are:

  1. Function
  2. Stroke Length & force
  3. Size
  4. Voltage
  5. Duty Cycle

There are other factors such as flow requirement, the material, orifice size, temperature, and response time to keep in mind too. 

Types of Solenoid Valves

There are many types of solenoid valves, but the main two are either direct acting or pilot operated. Each type is a useful component dependent on its application. 

Pilot operated solenoid valves are the most widely used valves and utilize line pressure to open and close the central orifice in a valve. 

BENEFITS:
  • Easy installation
  • Cost-effective
  • Useful in high-pressure applications
  • Remote 
  • Lower power

Whereas direct acting solenoid valves can function from zero and require no difference in pressure between ports to operate.  

BENEFITS: 
  • Variety of valve options
  • Useful in negative pressure applications
  • Compact design
  • Permit particle debris pass 

At Curtiss Wright, we offer a wide selection of solenoid valves that fit various applications.

SOLENOID VALVES

Solenoid valves are control units that switch between electrically energized or de-energized. They will either open or close an orifice within the valve, allowing or preventing liquid or gas flow.

At Curtiss Wright, we manufacture a wide variety of solenoid valves for various industrial applications, including pneumatically controlled ABS systems for heavy goods vehicle trailers.

RELATED PRODUCTS:

GV0624 - Solenoid Valve, GV0625 - Solenoid Valve, GV0627 - Solenoid Valve, GV1032 - Solenoid Valve, MV SD237 - Solenoid Valve, MV SD298 - Solenoid Valve

AC LAMINATED SOLENOIDS

AC laminated solenoids are electromagnetic devices that allow for extremely short closing times (8 to 16 milliseconds) and produce large initial attracting forces. One of the main advantages of AC laminated solenoids is that when electricity is applied the solenoid reacts instantly, which is vital for applications for which it is employed. These types of solenoids are manufactured by using specialist techniques and materials such as thin sheets or laminations, that are individually insulated and assembled.

RELATED PRODUCTS:

ML1441 - AC Laminated Solenoid (Model TT2), ML1951 - AC Laminated Solenoid (Model TT4)ML2551 - AC Laminated Solenoid (Model TT6), ML2566 - AC Laminated Solenoid (Model TT10)

LATCHING SOLENOID VALVES

A latching solenoid utilizes a permanent magnet material in conjunction with the solenoid coil, allowing the plunger to maintain a set position without the need for the constant application of power. With only a quick and short pulse of current, the latching solenoid can execute push, pull, hold and release operations, therefore very cost-effective. Bi-directional magnetic latching open frames feature latching solenoids, as these models electromechanically power the load in both directions, holding it magnetically latched in either position without power. 
Latching solenoids are typically used in security devices, automatic door closers, locks, medical equipment, and battery-powered equipment.

RELATED PRODUCTS:

GK0625 - Latching Solenoid (Permanent Magnet), GK0641 - Latching Solenoid (Permanent Magnet), GK0730 - Latching Solenoid (Permanent Magnet), GK0740 - Latching Solenoid (Permanent Magnet), GK1037 - Latching Solenoid (Permanent Magnet)

OPEN FRAME LINEAR SOLENOID VALVES

An open frame linear solenoid features an open metal frame, which includes a mechanically unprotected visible taped or overmolded coil and a movable plunger in the coil's center. They develop linear force in a single direction, either pull or push when it is energized. It is the simplest and most cost-effective linear solenoid design, typically used in applications in which precision and extremely long life are not crucial. 
There are two styles of open frame solenoids -
  • The C Frame (or U Frame) style, in which the coil is enclosed on one side 
  • The D Frame (or Box Frame) style, where the coil is enclosed on two sides
RELATED PRODUCTS

 

TUBLAR SOLENOID VALVES

A tubular solenoid is an electrical component that uses electromagnetic force. It is more magnetically efficient due to the enclosed coil within a steel tube to minimize leakage and maximize performance. Our tubular solenoids are a popular choice for applications that require high-performance levels within a small compact size. At Curtiss Wright, we can also supply custom heavy-duty tubular solenoid designs up to Ø100mm with 100N force at 50mm stroke.

RELATED PRODUCTS:

 

GT0639 - Tubular Compact Solenoid, GT0852 - Tubular Solenoid, GT1152 - Tubular Solenoid, GT4036 - Tubular Solenoid, GT4045 - Tubular Solenoid, MT0525 - Tubular Solenoid, MT0618 - Tubular Solenoid, MT1034 - Tubular Solenoid (Interlock), MT2057 - Tubular Solenoid (Interlock)

Products