What is the Difference Between Pressure Control Valve and Pressure Regulator?

by Saniya Zeenat Writer

It is crucial for a group of operators, engineers and workforce to understand the major differences between valve and regulators to make an informed decision. Since these two differ in design and functioning, one should know the basics of these instruments and how they work.

Each of these instruments holds an important and equal place in the oil and gas industry but are different in the way they operate and function. It is necessary to understand the functions of Rego Goddard cryogenic valves and regulators to select the right instrument based on your project needs. To obtain a clear picture of the working principle of these systems, it is crucial to understand the basics of a process control loop.

So let’s get started!

The Control Loop System

A control loop is a system designed to proceed or limit a measured process variable depending on its degree of deviation from a stated set point. The variables could be anything from the pressure to temperature, level, volume, and much more. In the gas industry, a control loop system is mainly used to permit or restrict the flow of hydrocarbons. Pressure control valve (PCV), pressure regulator and flow control valve are some of the equipment used for flow control.

What is Pressure Control Valve?

A pressure control valve (PCV) identifies the degree at which a valve opens or closes in reaction to an electrical signal produced from one or more process variables. It depends on the standard control loop system. It is commonly used to control fluid pressure via pipeline.

What is Pressure Regulator?

A pressure regulator is an instrument designed to permit or limit the flow of fluids through a channel by implementing the process fluid to the surface. The fluid will either be permitted or prevented from flowing depending on the predetermined set point of pressure. 

Pressure Control Valve Vs Pressure Relief Valve

A pressure control valve (PCV) and pressure relief valve (PRV) are both designed for pressure control purpose but differ in operation. A PCV acts as a primary device for a device in the oil field which guards over pressurised flow line of hydrocarbons via a channel. While PRV is a secondary safety component used to control excess pressure from oil and gas.

Which is the Suitable Control Instrument?

Since these are process-controlled devices and do not need an immediate relay system for control, pressure regulators give a quick response than pressure control valves. PCVs mainly rely on the continuity between sensors and actuators. On the other hand, a pressure regulator is a primary safety device used to control pressure in the oil and gas field. Now that you have obtained the difference between the two, make sure to select the right instrument based on its capabilities and functions to meet your industry standards and needs.

Conclusion:

A pressure control valve is designed to control fluid flow by opening or closing a device based on an electrical signal produced from process variables such as temperature, level, and pressure whereas regulators are used to controlling the process directly. When selecting Rego Goddard cryogenic valves and regulators, it is best to look at its capabilities and functions to make a rational decision. Automating fluid control can be a beneficial option in the oil and gas industry for maintaining a safe pressure transmission.

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Created on Apr 17th 2020 14:15. Viewed 418 times.

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