Solenoid Valves & Solenoid Valve Manufacturers
Solenoid valves are electromechanical valves that are used to control the flow of liquids or gases. Consisting of a solenoid coil and a valve, solenoid valves function by converting electrical energy into mechanical energy, which can open or close the valve in order to shut off, dose, release, mix or distribute the fluids or gases.
Offering advantages such as rapid and safe switching, a compact design, high reliability and typically long service life, solenoid valves are used in a wide range of industries; particularly, commercial, industrial, residential and appliance. Solenoid valves are mainly categorized in three ways: material being controlled; such as solenoid air valves and solenoid water valves; design, such as 3 way solenoid valves, proportional solenoid valves or plastic solenoid valves; or how they are being powered, such as pneumatic solenoid valves and 12 volt solenoid valves. Each type of solenoid valve is best suited for certain flow control applications. For example, miniature solenoid valves are commonly used in medical industries for applications such as gas analyzers, biotechnology equipment, and portable medical devices, while stainless steel solenoid valves are ideal for chemical processing applications due to high corrosion and abrasion resistance that allows for excellent control of acids, analytical reagents and bases. Additionally, high pressure solenoid valves allow flow control in areas in which other valves could not operate, such as potentially dangerous machinery or inaccessible lines.
Some Leading Manufacturers
Irvine, CA | 949-458-3731
We are a worldwide supplier of solenoid valves and other engineered fluid handling products. International Polymer Solutions has over 46 years of experience supplying solenoid valves, pneumatic valves, manual valves, and other flow devices. We strive to satisfy our customer’s needs and expectations and only take on commitment we can meet. For more information about our products, call us today or visit our website! We look forward to working with you!
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Hawthorne, NJ | 973-427-4341
Magnatrol Valve Corporation manufactures a complete line of industrial solenoid valves for process control. We were established in 1936 and have continued our commitment to improve product quality and delivery and expand our customer base. All of our solenoid valves adhere to strict quality assurance standards. Our products are used in a variety of industries including chemical, power, petroleum, Navy, marine, food, and more! Call us today!
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Kalamazoo, MI | 800-477-8707
Humphrey Products Company has over 100 years of industry experience. We are a worldwide, recognized leader of solenoid valves and pneumatic products. All our products are proudly made in the USA. We offer a wide range of solenoid valves including direct acting, proportional, indirect acting, air pilot, manual and mechanical, total air control, and more! Visit our website or call us today to learn more about our company and products!
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McHenry, IL | 800-362-7068
For more than 35 years, EVSCO has provided exceptional fluid control products to customers around the globe. Specializing in the manufacture of solenoid valves, we can provide you with a multitude of solenoid valve options, including electric actuated, stack, 2-way, 3-way, 4-way, and 5-way valves. We also offer a variety of sizes, including 1/8”, 1/4″, 3/8”, 1/2”, and 3/4″ for pressure ranging from 100 to 150 psi. Contact us to find your solenoid valve solution!
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Erie, PA | 888-825-8405
Solenoid Solutions Inc. has a reputation for manufacturing high quality custom solenoid valves. We are a leading manufacturer of solenoid valves, miniature low watt valves, multi valve manifolds, and more! We are able to develop custom solutions for many industries including OEMs, medical, appliance, transportation, power generation, industrial equipment, and more! Call us today, visit our website, or submit a request for quote through our website!
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Irvine, CA | 800-325-1405
Burkert Fluid Control Systems is the premier source for solenoid valves and fluid handling components. We build our products for long lasting service and reliable operation, and each of our products is designed for simple and straight forward use. Our experienced and knowledgeable staff is always ready to assist you with all your flow control requirements, so give us a call today to see how we can serve you!
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The two main components of a solenoid valve are a solenoid coil and a valve. A solenoid coil is a magnetized wire coil that becomes activated through electrical charges, resulting in current flow. The current flow creates a magnetic field, thus converting the electrical energy to mechanical energy and moving the actuator. The actuator is attached to the valve, and causes valve movement. A spring returns both the actuator and the valve back to their un-activated state when the current flow is no longer present. Solenoid valves typically are configured in two main ways: normally open (NO) or normally closed (NC). In a normally closed (NC) valve, a plunging pin or rod within the valve is held in place by solenoid coil to block flow. In order for gas or fluid to flow through the valve, an electromagnetic charge is run through the solenoid coil, which becomes active and lifts the plunger out of the passage to allow flow. Normally open (NO) valves are the opposite; they remain open until the solenoid is activated and pushes down the plunger, blocking flow and creating pressure to keep the valve closed. In addition, solenoid valves can be direct-acting or pilot-operated. Direct-acting solenoid valves have a plunger that is in direct contact with the in-flow opening in the valve body, or orifice. This plunger is used to open and close the orifice, which permits or hinders flow. The pilot-operated solenoid valve, which is actually a combination of a pneumatic or hydraulic valve and a smaller solenoid valve, works with a diaphragm rather than a plunger, using differential pressure to control the flow of gases or fluids.
The many different types of solenoid valves have varied configurations and actuation methods. Pneumatic solenoid valves are one of the most common types, and are used to regulate the flow of air and other gases through the use of diaphragms and gas pressure. While some pneumatic valves regulate air or gas flow at relatively normal pressures, such as in home heating and cooling applications, other pneumatic valves are designed to output gas at extremely high pressures, such as in power tools. Pneumatic valves can also be referred to as gas solenoid valves, solenoid air valves, or just air valves. Another common type is a proportional solenoid valve, which functions by utilizing the same elements as a regular pneumatic or hydraulic solenoid valve but with more advanced flow control capabilities due to allow variable flow that is proportional to the electrical control signal. Solenoid water valves, or hydraulic solenoid valves, are less common than pneumatic solenoid valves but still vital to many applications. Solenoid water valves are typically NC as well as pilot-operated, as opposed to direct-acting. While most solenoid valves are 2-way, meaning that they have two connection areas and one orifice; however, 3-way solenoid valves are also available, with three connections and two orifices. Another highly common solenoid valve type is a12 volt solenoid valve. The 12 volt refers to the amount of voltages supplied by the direct current (DC) power source, which could also be 3v, 6v and 24 volt solenoid valves; however, 12 volt solenoid valves are the standard. All of these solenoid valve types can be constructed from a range of materials such as plastic solenoid valves, which can be PTFE, PVC, natural polypropylene, CPVC and PVD, or metal solenoid valves, such as stainless steel, bronze, aluminum and brass.
One type of valve that is particularly comparable to solenoid valves is an actuated ball valve. An actuated ball valve is mostly used to shut flow off or turn flow on, not necessarily for flow control. A ball valve contains a ball with a small hole in the middle that helps to control the flow of materials through the pipe, and an actuator that rotates the ball to start or stop flow. While there are many applications in which solenoid valves should be used instead of ball valves, such as low flow and high speed cycles, there are also applications in which a ball valve should be used instead of a solenoid valve, such as high flow and applications requiring a manual override option. However, there are many beneficial characteristics of solenoid valves that give them advantages over other valve types. For example, since solenoid valves are powered by natural pressure and electromagnetic force, they generally have fewer moving parts than other valves. This is widely considered to be a good design, since moving parts require maintenance. In addition, solenoid valves can be easily operated by remote devices that activate the solenoid coil, making solenoid valves extremely useful for hazardous applications. Also, solenoid valves can use either hydraulic or pneumatic power because both can be activated or piloted by solenoids. However, pneumatic power is more commonly used because it considered cleaner and lower maintenance than hydraulic power, due to the absence of degrading fluids which produce waste and must be maintained.