Understanding Lined Valve Sizing: DN25, DN40, DN50, and Beyond

Industrial lined valves are not a one-size-fits-all. This should be a no-brainer since industries come in various scopes and sizes, and so are these valves. 

Understanding everything about your valve sizing guide is crucial to guarantee the ideal flow control, system efficiency, and the cost-effectiveness of your piping systems. Learn about the right lined valve sizes in this article that will tackle the following: 

– Importance of proper valve sizing

– Decoding your Diamètre Nominal

– Valve size DN25, valve size DN40, and valve size DN50

– Factors influencing valve size guides and selections

– Sizing for lined valves with YOUFUMI 

The Importance of Correct Industrial Valve Sizing  

With the proper industrial valve sizing, you could ensure the following are met:

• Maintenance of optimal flow rates
• Guaranteeing process efficiency
• Prevention of potential safety hazards

Impact on Flow, Pressure, and Cost  

Finding you, your valve, and your industry facing incorrect sizing leads to grave issues like reduced flow, inaccurate control, unnecessary energy consumption costs, and, worst, even system failure. 

Your valve sizing guide is directly impacting flow, pressure, and cost, of course. The sizing of your industrial lined valve affects the capacity of flow, drops in pressure, and thus, significantly influencing the overall installation of your system, as well as maintenance costs.

Lined 3 Way Ball Valve

Versatile flow control with anti-blowout design and full PFA lining.

View Product

Decoding DN or Diamètre Nominal

Obviously, Diamètre Nominal is a French term, but this is applied to the sizes and fittings of piping systems, such as those in industries.

Officially, this particular diameter is the diameter of the inside of a valve shell, typically measured in inches and rounded off to the nearest integer. 

Diamètre Nominal is not the exact physical measurement, but it provides a very convenient and rounded integer in order to identify valves based on sizes, ensuring components from various manufacturers and providers are used together.

Relation to NPS and Inches  

It is easy to understand this part, as Diamètre Nominal is usually designated into the metric system in millimeters, just like the NPS or the Nominal Pipe Size. Both these measurements represent standardized, non-actual pipe sizes, used commonly for industrial lined valves. 

Common Sizes in Industrial Applications (DN25, DN40, and DN50) 

The common sizes of your lined valves in their industrial applications are as follows:

• Valve size DN25
• Valve size DN40
• Valve size DN50

Now, you should be able to distinguish them not only from the differences in their names. Here’s a table to illustrate:

Factors Influencing Valve Size Selection  

There are three major factors that influence the right selection of the right lined valve sizes for industries:

• Fluid properties: These encompass viscosity, reaction to rusting, temperature, and particulate content, affecting the valve sizing guide for lined variants.
• Process requirements (Flow and velocity): These two factors dictate the capacity of the industrial valve to keep damage at bay.  
• Pressure drop considerations: How far can your valve limit pressure loss? Is excessive energy use avoided?

Sizing for Industrial Lined Valves with YOUFUMI

The lined valves of our company, YOUFUMI, are one-of-a-kind. Our catalog of lined valves features plugs, balls, butterflies, checks, diaphragms, gates, and globes. Be sure you know your needs, so you could match them with these robust valves from this manufacturer. Enhance your industrial operations. Experience precision for optimum performance all the way. Call us today to learn more.