Valve selection guide

Choosing the right valve in terms of optimal performance and with a more reasonable price can greatly affect the project and save time and side costs. ERC guides you with this article to choose the best valve which will be functionally suitable for your usage.

• Functional requirement of Valve

As you know valves have many different types and can be used for many purposes such as: control of flow, Regulating pressure, on/off, temperature regulation, safety functions and many more. Each purposes requires different type of valve which we have mentioned as below:

• Opening, closing:
• Ball Valve
• Gate Valve
• Plug Valve
• Preventing the fluid from Backflowing:
• Check Valve
• Pressure Valve
• Flow regulating:
• Needle Valve (best for precisely regulating Flow)
• Globe Valve
• Butterfly Valve
• Diaphragm Valve
• Angle Valve
• Pressure Regulating and Safety usages:
• Safety Valve
• Relief Valve
• Pressure Valve
• Solenoid Valves function as remotely controlled switches for fluid and will be controlled from Control Panel
• Fluid Characteristics to be handled by Valve:

In principle, valves can be used to control various materials such as powders, thick liquids, gas, water, chemicals, oil, steam, etc. the media or generally the fluid is an essential part of selecting the right valve since an incorrect material choice of valve body can quickly lead to valve failure. Based on the media and fluid characteristics can body and seats of valve include: Stainless Steel, plastics and epoxies, brass and cast iron. Each of them has its different advantages and disadvantages.

• Valve Size Specifications

It's going to sound really basic, but most people believe the valve they want has to be line size. In many cases, it makes perfect sense to order a valve matching line size, but sometimes you can order a smaller (less costly) valve that will perform the same task as one that would match line size.

• Temperatures and Pressures

The relationship between the pressure range and the temperature that a valve can work well is very important in choosing a valve. The questions that must be answered in this phase include the following:

• The difference between the flow rate and pressure drops
• Temperature range of Media, at which temperature will the media reach in Valve. It will affect the valve seat and body materials.
• Pressure flow within the system and process. Inlet and outlet pressure of valve shall be specified.

 

• Frequency of Valve’s Usage

How frequently you’ll be using the valve. Industrial valves such as Globe Valves lend themself well to regular and frequent use.

• Budget

In order to reduce project costs and considering the most appropriate one with optimal performance, it can have a significant impact on costs. For instance, a EPOXY or PVC valve will generally be cheaper than one produced using stainless steel but may be resistant to corrosion. In your selection of a valve, consider what you can reasonably afford. You might, for example, consider a second-best option now and go ahead to upgrade when funds are available. You can, in that way, balance cost with quality, bearing in mind your long-term needs.

In order to choose the right valve for use in industrial projects or personally, ERC tries to provide a suitable platform with easy access to accompany you in this way and help you in the best way without any trouble.

In conclusion, please refer to the table below for a clearer and more efficient understanding of the content presented in this article.