Solenoid valves are widely used in a range of sectors due to the benefits they provide in terms of safe and speedy switching, dependability, extended service life, and compact design. They are, however, most often used in the household, industrial, appliance, and commercial sectors. Refrigeration, HVAC and air conditioning, agricultural air conditioning, power washing, pneumatic and hydraulic systems (motors, buffers, cylinders, etc. ), automotive engineering, compressed air systems, and domestic appliances are all examples of popular uses. For more information about solenoid valves, read this article.
The table below lists some of the top Solenoid Valve Manufacturers and Suppliers in the United States, as measured by yearly sales. Additional information about each business’s headquarters location, as well as the number of workers and descriptions of corporate operations, are given in what follows.
Which is the best solenoid valve?
Burkert is headquartered in the United States, has more than 70 years of experience in the field of liquid and gas process control, and is currently a leader in fluid control systems. Burkert is committed to solving fluid system challenges for various industries and providing high-quality products and excellent solutions.
Burkert products include water solenoid valves, steam solenoid valves, high pressure solenoid valves, low temperature solenoid valves and so on.
Solenoid Solution is a company dedicated to providing automation solutions for various industries to help you build high-performance solenoid valve systems. Solenoid Solution provides professional design services to help you design systems, optimize space and improve work efficiency, while reducing costs.
Solenoid Solution has a complete solenoid valve series, such as 2-port solenoid valve, 3-port solenoid valve, gas solenoid valve, water solenoid valve, etc. Solenoid Solution also provides solenoid valve customization services.
MAC Valves was established in 1948 and is a leading manufacturer of flow control systems. At present, MAC has more than 100 valve technology patents, and its business is all over the world. If you have any urgent needs, MAC can provide quick response services.
Products can be used in automobiles, textile industries, cement plants, filling systems, food processing, etc.
International Polymer Solutions has a history of more than 60 years. Ipolymer is customer-oriented and is committed to providing customized solutions for various industries. Solenoid valves produced by Ipolymer have unparalleled chemical compatibility and can be used in the biomedical, pharmaceutical, food and sanitary industries.
Magnatrol has a history of more than 75 years and has been committed to producing various solenoid valves for process control. The product can be used to regulate water, steam, air, oil, etc., and can be used in chemical, electric power, water and wastewater industries. Products are 100% made in the United States.
The History of Solenoid Valves
The first solenoid valve was the solenoid control valve, sold and manufactured in 1910 by ASCO Numatics. Then, in the 1950s, manufacturers began distributing plastic molded solenoid valves. The switch to plastic meant that solenoid valves were now more efficient, reliable, corrosion resistant and chemical resistant.
This trend of improvement continued on into the late 20th century. For instance, starting in the ‘70s, manufacturers began producing automatic shut-off solenoid valves, which were safer and easier to operate than manual control shut-off valves.
In the 1990s, governments around the world, as well as independent organizations, began creating solenoid valve standardizations, which enabled a higher frequency of international trade, easier collaborations between companies and easier maintenance. Today, newer standards also restrict the use of hazardous substances in valve fabrication, so as to improve their environmental friendliness. Today, much of valve fabrication and use innovation is focused on health and sustainability.
Standards of Solenoid Valves
The standards to which your solenoid valves will need to adhere depend on your application, industry and location.
If your valves will be coming in contact with drinking water, for example, your solenoid valves must be lead-free. In the United States, drinking water and plumbing codes require RO (reverse osmosis) equipment must be NSF certified and/or meet NSF 61-G, a leachate and lead-free regulation put out by NSF (the National Science Foundation). If you’ll be using your solenoid valves abroad, they need to be certified lead-free by NSF International and accredited by both ANSI and the Standards Council of Canada.
In addition, NEMA (National Electrical Manufacturers Association) offers standard designations for valve suitability. Generally speaking, the higher the NEMA type number, the harsher the exposure the valve can withstand. For example, NEMA Type 1 valves are well-suited for indoor use, while NEMA Type 7 and 9 valves are best for environments that feature explosive dust or vapors.
Solenoid Valve Types
- 3-Way Solenoid Valves
- 12 Volt Solenoid Valves
- Air Valves
- Gas Solenoid Valves
- Hydraulic Solenoid Valves
- Miniature Solenoid Valves
- Direct Operated
- Indirect Operated
- Semi-Direct Operated Solenoid Valve
- Purge Valve
- Actuated Ball Valve
- Poppet Valve
- Plastic Solenoid Valves
- Pneumatic Solenoid Valves
- High Pressure Solenoid Valves
- Proportional Solenoid Valves
- Rotary Solenoids Valves
- Solenoid Air Valve Controls
- Solenoid Water Valves
- Stainless Steel Solenoid Valves
How do Solenoid Valves work?
A solenoid valve consists of two main components: a solenoid and a valve body (G). Figure 2 shows the components. A solenoid has an electromagnetically inductive coil (A) around an iron core at the center called the plunger (E). At rest, it can be normally open (NO) or normally closed (NC). In the de-energized state, a normally open valve is open and a normally closed valve is closed. When current flows through the solenoid, the coil is energized and creates a magnetic field. This creates a magnetic attraction with the plunger, moving it and overcoming the spring (D) force. If the valve is normally closed, the plunger is lifted so that the seal (F) opens the orifice and allows the flow of the media through the valve. If the valve is normally open, the plunger moves downward so that the seal (F) blocks the orifice and stops the flow of the media through the valve. The shading ring (C) prevents vibration and humming in AC coils.
Advantages of Solenoid Valves
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 is considered cleaner and lower maintenance than hydraulic power, due to the absence of degrading fluids which produce waste and must be maintained.
Finally, solenoid valves offer rapid and safe switching, compact design, high reliability and typically long service life.
Applications of Solenoid Valves
Solenoid valves are used in a wide range of applications, with high or low pressures and small or large flow rates. These solenoid valves use different operating principles that are optimal for the application. The three most important ones are explained in this article: direct acting, indirect acting, and semi-direct acting operation.
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