Types of Valves: Application, Working, Design & Methods

Types of Valves
Types of Valves

What is Valve?

Types of Valve: Application, Working, Design & Methods :- Valves are referred to as those devices which are found controlling work, regulating or directly flowing within a particular system or a process. These mostly feature a range of characteristics which helps in order to define an ideal application. Whereas, if there is a need to control the flow then it must be provided with safety with a system that includes the piping liquids, solids, gasses or anything within it that are likely to be stainless steel valves available to help.

These valves are actually of various uses and also perform several functions which are mentioned below:

  • Proper functioning in starting or stopping a flow based on the valve state.
  • Consistent regulating of flow and pressure within the piping system.
  • It has a major role in controlling the direction of flow within a piping system
  • Throttling flow rates within a piping system
  • Helps in Improving the safety through relieving pressure or vacuum in a piping system

Categories and Methods of Valve Opening

By now we all are well known with the functions of valves now let’s understand what all are the methods of opening and closing a valve which does not impact the performance but on the other hand also determines the amount of control which you have over the flow and how quickly the valve operates.

Most of the valves are fit into the below mentioned categories:

1. Multi-Turn Valves

These valves are thought like a screw or piston. Crank the handle and the plug, plate, membrane, or other controlling obstruction which moves into the path of the pipe blocking access. It also depends on the valve which can have a higher or lower differentials that allows you in opening or closing them at varying speeds.

2. Quarter Turn Valves

Quarter-turn valves are the types of valves which offer a complete range of motion in a 90-degree turn of the handle. This is the condition which makes it an ideal one for situations where the precision is not that important as compared to the rapid action and easy opening or closing.

The top of the mechanical motion includes a valve which is also considered as the method of actuation. Also in most of the cases the valves fall into one amongst these categories.

3. Manual Valves

As clearly predicted by the name, these are mostly the valves which are adjusted by hand. These are the valves which use hand wheels, hand levels, gear wheels or chains to actuate.

4. Actuated Valves

These types of valves are usually connected to the electric motors, air or pneumatic systems, hydraulic systems or solenoids. These valves help in allowing the remote control and automation for high-accuracy or large-scale applications.

5. Automatic Valves

These are some valves which get activated only when there specific flow condition is met. For instance it includes check valves closing during the backflow or pressure release valves that gets activates whenever an over-pressure condition is detected.

Types of Valves

Valves are found in a very wide range with various characteristics, standards and groupings that help in giving you an idea about their applications and the expected performance. The designing of the valve is one of the most basic way in order to sort the huge range of valves which is available and also finds a good fit for a project or process.

Some of the most common types of valves are mentioned below along with their applications:

1. Rotary Valve: ( Types of Valves )

These valves are also referred to as quarter turn valves that mostly relies on the rotary motion of the flow obstructer. In maximum cases the rotation is limited to an angle of 90 degrees which makes it one quarter-turn, whereas, there are various other valves which can operate by the help of a larger degree of rotation that can have more than 2 positions in the regular operation.

Valves which are truly quarter-turn are found closing completely at an angle of 0˚ and completely opening at an angle of 90˚. Ball valves, plug valves, and butterfly valves are some examples of quarter- turn valves.

2. Linear Valve: ( Types of Valves )

There are 2 different types of linear valves first is multi-turn and the other is axial. These two valves are found relying on the linear motion of the flow obstructer, whereas they are quite different in terms of construction and operation.

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