Knowing how to size and select flow control valves affects the ability to control any industrial process. Beyond that, knowledge of proper industrial valve sizing and selection also has a major impact on the overall cost of a project.
Carotek’s Valves Selection Guide gives a framework for process valve sizing and selection. When you need more help with your final selection, please contact us.
A range of flow control valves and valve automation products are specialized for industrial applications. The right type of valve for your application depends on flow control, function, and valve operation.
These industrial valves may be either manual or automated and are an integral part of critical solutions for industrial, commercial, and municipal processes.
A key component of process valve sizing and selection is determining the right size valve for your application. Finding the right valve configuration enhances performance and lengthens service life.
The first step is to determine the flow through the diameter of the valve. In other words, find the appropriate flow coefficient (Cv) for the valve and the application. It’s important to use accurate information when evaluating your performance needs.
Knowing how to size a valve is critical for both process and economic efficiency. Giving in to the temptation to select oversized control valves leads to poor process control and a reduction in service life.
You can choose the right type of valve for the application by using the media type, the materials of construction, the valve characteristics, the pressure/temperature of the media, and the pressure class of the piping system. Keep these criteria in mind when specifying any industrial valve:
You also need to consider the valve function, actuation method, valve automation, and ongoing maintenance requirements of the valve, and whether you’re specifying metric or imperial units.
Once you have completed process valve sizing and selection, it’s time to configure the valve assembly. This may include selecting the (pneumatic or electric) actuator and/or valve positioner. When a positioner is used, you’ll need to determine the control signal and other accessories required (limit switches, solenoid valves). Actuators must be sized to actuate the valve. When selecting pneumatic actuators, base the decision on minimum air supply pressure. Electric actuators must be selected based on available voltage.
Carotek is an authorized distributor/representative of many types of industrial valves, including ASCO, DeZURIK, Flowserve, Valtek, Kammer and SVF. Carotek Application Engineers are specially trained to assist with ordering the right valve for your application.
Contact Carotek for expert assistance with your industrial valve sizing and selection process. Or browse our selection of industrial valves, process valves, and valve automation solutions to find the perfect fit for your application.
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