In the process operations involving fluids, you need the highest levels of control and measurement. This is where flow control valves become relevant. When choosing these valves, you need to check their sizing and flow measurements. Here’s why.
The control valves are an important component of any fluid handling process or plant operations. These valves help in regulating the flow direction and intensity of a fluid substance. However, you need to assess and find relevant sizing and flow control measurement to ensure reliability, safety, and efficiency of your industrial process. Here are given the reasons for addressing control valve performance and sizing for overall profitability and asset lifecycle.
Why Do You Need An Accurate Valve Sizing?
Mostly, when control valve sizing is determined, it refers to the whole process of selecting the right equipment that offers optimal solutions for control function in a process. This selection is imperative for maintaining the best degree of control for a multiphase fluid or gas.
Depending on user requirement and plant preferences, the style and size of a control valve can be determined. It can be a tricky process. Therefore, you should rely on the best control valve manufacturers who can customise these valves as per your individual requirements.
Variables for Sizing of a Control Valve:
These include the medium to be handled by valve, the impact of specific gravity and viscosity on valve sizing, inlet pressure to be maintained under the load demand, pressure drops taking place across the valve, maximum capacity of a valve, and maximum pressure differential for closing a valve.
The perfect sizing of a valve allows the required flow rate and pressure drops across the instrument. Take an example, if a valve is undersized, it may not have capacity to allow the required flow. As a result, it becomes hard to maintain absolute precision and controlled performance.
The Impact of Process Design:
The best control valve manufacturers can provide sizing that is based on maximum process design and safety requirements of your industry. It may entail specifying and maintaining a device larger than the anticipated flow rate. This again results in inaccurate process outcomes. An oversized valve will be more sensitive to operating conditions and slightest of changes in its position will affect the flow of liquids.
Impact of the Trim Material:
After finding the proper valve sizing, it is important to maintain its performance as well. Like other mechanical devices, the control performance of these valves decay with time and eventually lead to failure and downtime in production lines. This is where trim material plays an important role. It encompasses the seat, stem, disc, and sleeves required to connect the stem.
These materials can be selected for designing any passage shape depending on the requirements of a process. In this regard, the stroke length will ensure opening size and amount of medium passing through the valve. By changing its internal gap, control valve manages a steady flow of the fluids. Hence, you should carefully select the trim material for better performance. The high-grade 316 stainless steel ensures longer lifespan and lesser replacement costs.
Depending on specific needs of an industry, you should choose the right type of valve to modulate flow of liquid without any discrepancy. Follow these steps to make informed decisions.
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