Automation for Error-Free Operation:

One notable advantage of diaphragm valves is their ability to automate the start-up and shut-down process, eliminating potential operator errors. In contrast, media shut off valves on other Wet Blast Systems rely on manual operation, which can lead to issues if the valve is not properly closed before filling the blasting equipment with media.

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For systems using pinch valves, the risk of backflow issues arises when the media shut off valve is left open during the fill process, or more common, the shutdown process when the air supply is turned off to the system. This simple mistake can quickly result in media and/or contaminated water to flow freely into the control panel and pipe stream. This can lead to catastrophic failure of the pneumatics resulting in equipment damage and substantial downtime and repair cost.

Diaphragm valves, on the other hand, feature fail safe designs that ensure proper closure of the media valve, even when the air supply is turned off to the equipment. This prevents backflow issues and thereby eliminates the possibility of operator error that can quickly result in those costly repairs and downtime. Additionally, diaphragm valves have that added value of being incorporated into automated systems with relative ease without the need of additional componentry.

What&#;s the difference between a diaphragm and electrically actuated control valves?

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A diaphragm valve and an electrically actuated control valve are two similar valves that have a few key differences. A diaphragm valve is a manual type of valve that is used within a closing device. In these instances, the diaphragm valve is responsible for isolating or blocking the flow of liquids. Generally speaking, diaphragm valves are used under low pressure and within a limited temperature operating range. With this in mind, they are a commonly chosen valve for regulating gases and liquids.

Contrary to a diaphragm valve, an electrically actuated control valve is not a manual valve. Rather, it is a valve that is powered by a motor. The motor converts electrical energy into a mechanical torque, which then opens or closes the valve (or in some cases, valves). The electrically actuated control valve is one of the highest torque operating valves because it relies on electric power rather than having a dependence on compressed air. The electric solution has a number of benefits.

• It is a cost effective solution.
• The electrically actuated control valve offers a wider variety of control-valve applications.
• It can be successfully used within the chemical, petrochemical, power generation, and other process industries.

With these key differences in mind, it is important to note that both the diaphragm valve and the electrically actuated control valve are appropriate solutions. Determining when to use each type of valve will depend on the type of liquid or gas that you need to handle, as well as the industry that you work within. To learn more about the differences between a diaphragm valve and an electrically actuated control valve contact the experts at W.P. Law. The entire W.P. Law team is dedicated to providing valuable insights, services, and products to a multiplicity of industries. Contact a team member today to discover which valve is best suited for your unique set of requirements.