Proportional Solenoid Valve Manufacturers and Suppliers

IQS Directory is a top industrial directory listing of leading industrial proportional solenoid valve manufacturers and suppliers. Access our comprehensive index to review and source proportional solenoid valve manufacturers with preview ads and detailed product descriptions. These proportional solenoid valve companies can design, engineer and manufacture proportional solenoid valve to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these proportional solenoid valve manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of proportional 12 volt valves, magnetized proportional valves, proportional electronic valves.

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  • Solenoid Solutions: Rapid Response

    Proportional Solenoid Valves Depend on Solenoid Solutions, Inc. for the highest quality solenoid valve to fit your application. As solenoid valve manufacturers, we sell direct, give quick quotes over the phone, have engineers at the ready, and deliver your prototype in five days or less. Once a project is approved and in production, we'll even manage your inventory for you. How's that for service? Read More......

  • Viscous Pumping Help

    One problem that many factories face is the issue of pumping viscous liquids from one place to another. Pumps and valves do not work the same with viscous liquids as they do with less viscous liquids, and finding the right solution for the right liquid can be a challenge. Luckily, there are a variety of miniature solenoid valves and pumps specifically designed for use with viscous liquids. In fact, some valve and pump systems are capable of pumping viscous liquids with pressures up to 99.7 psi and a liquid flow...

  • How Important Can One Valve Be? The True Story of a Faulty Valve

    If you wonder how important a small air valve can possibly be, you need to read this story about a fire that started at an Emeryville AC transit station in May 2012. On May 4, 2012, a fire broke out at the AC transit station. The fire was a large hydrogen fire, and damaged equipment at parts at the transit station and also caused the nearby neighborhood to require evacuation for a few days. The transit station had to shut down until the damage from the fire was repaired, because...

  • Proportional Solenoid Valves: For Precision

    Precision is an obvious priority in certain industries, such as the medical and surgical field. These supplies and machines must be handled and operating perfectly because peoples' lives depend on this. Another industry that requires exact regulation standards is the manufacturing business, which is often operating huge and dangerous machines that must work right or the workers could get hurt. Funny that such a small device like a proportional solenoid valve can have so much control among medical machines and manufacturing factories. This particular style of solenoid valve was developed...

  • The Technology of Proportional Solenoid Valves

    Proportional solenoid valves are surprisingly complicated. The way that the valve works is through the balance between the forces in the action of the plunger. This balance is achieved through a mechanical force provided by a specifically-designed spring and a current that passes through the coil that creates a magnetic force. The spring force is opposed by the magnetic force, which keeps the valve in balance. The valve works because the current that passes through the valve heats the coil, which increases the internal resistance. When the resistance is increased,...

  • Precision With Proportional Solenoid Valves

    In many industries, precision is a very vital thing to the success and efficiency of certain processes and products. This is especially true in the surgical or medical field, where cases of life and death are very real. The manufacturing industry also depends on the accuracy of their machinery in order to make products correctly. These industries must conform to exact regulation standards, where accuracy is essential to the success of the business. One small solution that has a big impact on this accuracy problem is the proportional solenoid valve....

Industry Information

Proportional Solenoid Valves

Solenoid valves are defined as electromechanically operated valves, or as valves that are controlled by the electric pulses emitted by a solenoid, also known as an electromagnetic coil. Most often, these valves regulate air and gas flow. Proportional solenoid valves are a type of solenoid valve that encourage balance. They act in response to the indication of the electric control signals that they convert into proportional mechanical force. This converted mechanical force triggers flow and moves the magnetized coil (solenoid) at moments chosen by engineers and operators. This design means that proportional solenoid valves can be operated remotely. This fact contrasts with direct-acting solenoid valves, which stop and start flow using a plunger placed in direct contact with the valve’s in-flow opening. The plunger blocks or permits flow per the indication given it by the movement of the solenoid.

Proportional solenoid valves are highly valued for their ability to accurately regulate the flow of air, gas and fluid within a wide range of system components. They are widely used to control fluid flow in the engines and hydraulically-powered equipment that power the worlds of aerospace, automation and automotive manufacturing. Furthermore, they are also used to regulate water flow, power and compressed air used in the marine, construction, food processing, woodworking, material handling and metalworking industries. Common systems and/or endeavors in which they are found/participate include: tire making, vacuum generation, leak testing, gas adjustment, laser cutting, and application of filling pressure.

Proportional solenoid valves are defined in some ways by their levels of linearity, frequency response and hysteresis. Linearity, in this context, is defined as a valve’s ability to actuate, or switch on and off, while creating a smooth line of input and output. Next, frequency refers to a valve’s ability to respond to extraneous frequencies meant to regulate flow. Finally, hysteresis refers to the phenomenon of path-dependent memory. The level of each of these variables in or exhibited by a proportional solenoid valve determine how accurately and with what tolerances it will control flow. Most solenoid valves consist of a few basic parts: the valve body, an inlet port, an outlet port, a coil/solenoid, coil windings, lead wires, a spring, a plunger and an orifice. They may also have additional components such as shading coils, plugnuts or fixed cores, bonnets or covers, backup washers, hanger springs and/or bleed holes. The first way in which proportional valves differ from the standard model is the fact that they do not use a plunger. Another thing that sets proportional solenoid valves apart from other types of solenoid valves, like direct-acting solenoid valves and servo valves, is their ability to accommodate multiple output lines and, using the laws of fluid pressure, increase or decrease output pressure via changes in input force distribution. In contrast, most solenoid valves only have one inlet and one outlet port. Also unique to proportional solenoid valves is the fact that, in some cases, their numerous output lines can be manipulated to open, close and flow at different pressures.

Proportional solenoid valves, the operations of which are often monitored by computers, are always powered by a direct current (DC) power source, such as the very popular 12 volt battery. Generally, proportional valves are constructed from a strong metal like stainless steel, aluminum, brass or a durable plastic. When purchasing a proportional solenoid valve, customers must make sure that the valve materials are compatible with the fluid that will be moving through it.

Subtypes of the proportional solenoid valve include proportional pressure reducing relief valves, canister proportional purge solenoid valves, three-way proportional pressure reducing-relieving valves, proportional pneumatic control valves and proportional pressure relief valves. In fact, proportional solenoid valves may generally be divided into the following groups, based on their function: directional control valves, pressure reducing/relieving valves, pressure relief valves and flow control valves. No matter their exact configuration or primary function, proportional solenoid valves provide users with a higher level of control over flow operations, heightened precision and accuracy, a variety of machine cycles, variable speeds and greater overall safety. Those considering the purchase of proportional solenoid valves must also consider the following parameters, which are essential to valve function: minimum pressure, maximum pressure, back-pressure range, fluid type, fluid temperature range, maximum flow and ambient temperature range. To find out if a proportional valve is right for your application, contact one or more of the experienced valve manufacturers listed in our directory today.

High Flow Proportional Solenoid Valves
Proportional Solenoid Valve
Proportional Solenoid Valve
High Flow Proportional Solenoid Valves – Humphrey Products Company
Proportional Solenoid Valve – Humphrey Products Company
Proportional Solenoid Valve – Humphrey Products Company
Proportional Solenoid Valve
Proportional Solenoid Valve
Proportional Solenoid Valve – Nacom Flow Controls
Proportional Solenoid Valve – Humphrey Products Company

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