Valve Regulation
Valves are a vital part of any pipe system, helping to optimize flow and prevent waste. Used to start and stop the flow of liquid or gas, valves are used in all kinds of industrial, commercial, and domestic applications. In order to make the most efficient use of these available resources, it is important to be familiar with the principles of valve regulation.
Valve regulation is the process of controlling the rate or amount of fluid or gas passing through a valve. Depending on the type of application, the regulation may be either analog or digital. Analog valve regulation is done by manipulating either the pressure or the temperature of the liquid or gas passing through the valve. This is usually accomplished by adjusting the flow rate of the material. Digital valve regulation is done by electronically manipulating the actuator, control arms or the solenoid valve. It can also be done by using a Control Valve Management System (CVMS).
When setting up or optimizing a valve system, it is important to determine the proper sizing of each valve according to its intended application. The size of a valve is determined by the size of its inlet and outlet ports and the flow capacity, as well as its design. It should also be determined whether the system will be used for controlling pressure, temperature, or flow. Once the proper sizing is established, the valve should be installed and tested for leakage.
When controlling the pressure, temperature, or flow rate of a substance with a valve, the differential pressure should always be taken into account. The differential pressure is the difference between the inlet pressure and the outlet pressure. The proper selection of valve sizing and operation can help to minimize the total differential pressure across a system.
Another important factor to consider when regulating valves is the working pressure within the system. This is the amount of pressure (pressure head) that must be maintained in order for the valve to function correctly. Working pressure must be taken into account when the valve is first installed and whenever the settings are changed or adjusted.
Valve regulation is a critical component of any pipe system. It is important to understand the sizing and operation of valves in order to make the best use of the available resources. Proper sizing, installation, and maintenance of valves can help to maximize efficiency and help to prevent waste.
