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Different Types Of Valves Used In Piping–a Complete Guide Of Pipe Valves
Views: 42 Author: Site Editor Publish Time: 2023-01-06 Origin: Site
A valve forms an important part of the distinct pipeline systems. They are not only used to regulate the flow of liquid but also to control the speed and pressure. The valves used in the pipelines are generally bigger as compared to the pipeline itself and placed more towards the ground level.
Owing to its functions and specifications there are different types of pipeline valves.
Types of Valves
In piping following types of valves are used depending on the requirements. The cost of valves in the piping system can be up to 20 to 30% of the overall piping cost. And the cost of a given type and size of valve can vary 100%. It means that if you choose a ball valve over a butterfly valve for the same function. It can cost you more. So, the selection of valves is essential to the economics and operation of the process plants.
A pipeline valves is mainly used in various pipeline systems for maintenance purposes. These valves play a major role in the smooth and efficient functioning of the pipelines. The valves are meant for regulating, controlling, and directing the flow of a fluid by opening, closing, or partially creating obstructions in the passage.
Furthermore, it also ensures the safety of the pipes. The valves are mainly installed in the control system. However, it is important to install only high-quality, reliable valves else it might lead to damage as well as leakage in the pipeline system.
Some of the major functions of these valves include:
Controlling the temperature by controlling the water cooling rates through a cooling line.
Controlling the flow of concentrated bases or acids through a line.
Balancing the system by restricting flow.
Avoiding reversing flow (check valves).
Automatically ceasing the flow in case of system failure.
The pipeline valves are mainly placed at specific intervals in the pipeline to control the movement and flow of the liquid. The operation of the valves is mainly dependent upon the position of the disc or rotary in it. While some valves can rotate to and fro, others can rotate either in one specific direction or a maximum in two directions.
In the case of the two-port valves, they can either remain closed to stop the flow of the fluid or open to allow its flow. In certain circumstances, the valve remains partially opened to allow the partial flow of the liquid.
In such two-port valves, the fluid can flow from one port to the other.
Some of oil pipeline valves are operated manually with the help of the handle attached to the stem of the valve. If the handle is half-turned up to 90 degrees, then it is considered the quarter turn valve. When the handle is in a completed circular position to the stem.
Even the actuators can control the functioning of the valve. The actuators are attached to the stem. They enable the valves to work in an automated manner.
Valves Types based on Functions
The valve serves various functions within the piping system. Such as Stopping and starting a fluid flow. Depending on whether a valve is open or closed, it lets pass the process fluid or halts the fluid.
Throttling the fluid flow. Some of the valves let you throttle the fluid depending open % of the total opening. Lesser the opening, higher the throttling and otherwise.
Controlling the direction of fluid flow. The multiport valve lets you decide the way fluid will go.
Regulating a flow or pressure within the piping system. Some of the automatic control valves maintain the flow and pressure within the system by adjusting opening and closing.
Relieve pressure or vacuum from the piping system and equipment. Pressure and vacuum relief valves safeguard the processing system from overpressure and during vacuum conditions.
Different types of valves serve these functions. These valves can be classified or categorized based on;
