7 Types of Gas Valves Used in the Oil & Gas Industry

Types of Gas Valves Used in the Oil & Gas Industry

The oil and gas industry is crucial all over the world and requires many components that control the flow of these fuels.

Gas valves are essential for the oil and gas industry to function, ensuring that the flow of gas and oil is consistent and regulated.

The main aim of using these valves is to ensure that gas and oil reach their destination without any hindrance.

Although the oil and gas industry is a single industry, multiple valves are being used, each having its function and application.

If you are interested in knowing more about the valves used in the oil and gas sector, you must read the guide below; you will learn a lot, so let’s walk through it.

 

Overview, Function, and Importance of Gas Valves in the Oil & Gas Industry

A gas valve is a component that helps regulate the oil and gas flow, allowing it to open and close the flow by controlling how much of these fuels pass through the pipes.

These valves have various functions:

  • Controlling the fluid or gas flow.
  • Allowing it to stop or start.
  • Adjusting the amounts that could travel through the pipes.

Gas valves control the fuel’s direction, and the pressure may be regulated according to the application it is used for.

In the oil and gas industry, there are different environments, some are highly sensitive and critical, and some aren’t depending upon the pressure needed for the flow of fuels.

Hence, using one kind of valve is not suitable for each purpose, and multiple valves have developed over a period of time to ensure that each type of valve serves every application.

Every valve has its functions and mechanisms to work, followed by pros and cons, and therefore, in one industry, multiple valves can be used serving different purposes.

It is essential to understand every type of gas valve in detail; the more detail is known, the easier it is to choose the suitable valve for each application. 

Types of Gas Valves in the Oil & Gas Industry

There are many types of gas valves commonly used in the oil and gas sector serving different purposes and are discussed in detail below:

 

1. Ball Valves

The ball valve is a very commonly used valve that helps flow gas and oil and is very easy to use and maintain; hence they are widely found in this sector.

3PC Stainless Steel Flanged Ball Valve

● Construction

There are two kinds of ball valves: the floating ball valve and the trunnion ball valve, available in multiple materials chosen according to the environment.

The floating one is suitable for pipelines having mild pressure, neither too high nor too low, and the trunnion ball valve is ideal for high pressures.

● Working

These valves are rotary ones, and they shut off quickly and immediately, providing a very tight closure; it consists of a pivoting ball that is fixed within it to control the flow.

This valve is open for the fluid to pass when the hole and the flow direction lie in the same line, but when the ball is turned to 90 degrees, the flow stops.

● Applications

These valves are suitable for flows that may either be in an open position or closed position completely; they do not offer any regulation and control of gas or oil pressure.

2. Globe Valves

Stainless-Steel-Globe-Valve

Globe valves have a purpose to either allow the flow to pass, completely stop it, or regulate it according to the required pressure.

● Construction

Globe valves consist of rising stems and seats inclined with the gas or liquid flow.

This valve consists of an outer screw that can be turned clockwise and anticlockwise to open or shut the fluid flow.

● Working

The globe valve works by moving the disc, being the primary closure, and it is moved in or out of the seat, and the fluid flow is controlled in the pipeline.

As the screw is moved, the seat of the valve moves, allowing the water to flow; this seat acts as a shutter that stops or allows the flow to pass.

● Applications

Globe valves are suitable for use in environments where the throttle flow must be managed, along with allowing and stopping the fluid flow.

Hence, it is used widely in the oil and gas industry, cooling systems and steam lines also use this kind of valve.

3. Check Valves

Stainless-Steel-H14W-Swing-Check-Valve

Check valves are very convenient because they restrict the backflow of the fluid, which is an advantage because the same pipeline can be used for a different chemical.

● Construction

The check valves consist of components like a seat, cover, body, and disc, and it is an automated valve that only allows the flow to move in one direction.

The construction of these valves is of such a nature that it doesn’t let the pipeline contaminate; hence, multiple fluids may flow through the same valve.

● Working

The check valve allows for a single direction or flow; as the pressure increases in the pipeline, it automatically allows the liquid to flow, but there is no going back in this type of valve.

If the flow turns back, the valve shuts down and protects the pipeline from contamination.

These valves are entirely automatic and need no human intervention to open or shut them, and they adjust the movement of the valve according to the flow.

Applications

The check valve is used in the oil and gas sector, and it is also used in the mining, power, and pharmaceutical industries.

4. Needle Valves

Needle valves, also called plunger valves, are used to regulate or control liquid flow accurately.

● Construction

The needle valves have a pointed needle-like tip at the end of the stem, which consists of a threaded layout acting as a millimeter count allowing the accuracy of the flow.

Reference: www.engineeringclicks.com/needle-valves/

This valve consists of components that include a seat, stem, and bonnet, and there is a handwheel on the top to open and shut the valve.

● Working

The needle valve consists of a handwheel that can be twisted to either open or shut, and when the valve is opened, it allows the flow of fluid to pass; however, it is easy to regulate the flow.

As the handle moves, the pointed plunger moves upwards, and the liquid flows; the flow pressure depends on how much the handwheel has moved.

● Applications

Needle valves are popularly used in oil and gas explorations, the chemical industry, power plants, hydraulic systems with low pressure, and many more.

5. Butterfly Valves

Butterfly Valve

Butterfly valves are simple and compact valves used to regulate the flow of gas or liquid smoothly; these are also lightweight.

● Construction

A butterfly valve is a tiny and straightforward valve with a circular layout comprising components like a disc, seat, shaft, and bearings.

Reference: www.instrumentationtools.com

The round disc present in the butterfly valve is the main aspect that controls the flow of material from passing through the pipe.

● Working

The handle on the valve can be moved to control the flow and movement of the material in the pipeline; when the disc is open, it allows the material to flow, and when it is closed, it stops the flow.

The disc inside the valve rotates and tends to either allow or block the way of the liquid to pass through.

● Applications

Butterfly valves are commonly used in many industries, including oil and gas, pharmaceuticals, food and beverages, and hydroelectric dams.

6. Control Valves

pneumatic-operated-ball-valve

A control valve is a power-operated valve requiring a signal from the control to work; quite a different kind of valve compared to other valves.

● Construction

The control valve comprises a stem, a seat, a disc, and a plug; it also includes an actuator and requires electrical force to move and control the flow.

● Working

Control valves use a power-operated device that indicates or controls it, as the valve receives a signal from the controller to move it either shuts the passage of the flow or opens it.

This valve not only controls the flow but the pressure and temperature of the material passing may also be controlled through this valve.

● Applications

Control valves serve the purpose of throttling and controlling the flow and are commonly used in oil and gas production.

It is suitable for most liquid kinds like corrosive materials, chillers, and normal fluids or gasses may also be controlled through it.

7. Solenoid Valves

A Solenoid valve is an automated valve that works through electronic power and comprises several benefits when controlling the flow of material.

● Construction

In the solenoid valve, there are two parts; the first part consists of an electronic coil, which is further proved by a move core that contains ferromagnetic properties.

The other part of this valve consists of a plunger made of iron, which moves through the coil’s center to let the flow stop or pass.

● Working

The actuator in the solenoid valve acts as an electromagnetic component that receives the current from the power source.

When the valve is energized with electricity the valve opens as the actuator moves and when it is de-energized the valve shuts, the movement of the actuator allows the plunger to move upwards or downwards.

● Applications

Solenoid valves are used in the oil and gas industry to control the pressure of the oil in hydraulic equipment.

Selection Criteria for Gas Valves in the Oil & Gas Industry

As much as it is essential to consider the kind of valve that must be chosen, the significance of some factors in making a selection of valve cannot be denied; these crucial factors are discussed below:

Gas Type

The type of gas or any other fuel that passes through the pipeline attached to the valve must be analyzed when choosing the valve.

The characteristics of that material may be corrosive or non-corrosive; if they are corrosive, the valve material must be perfluoro-alkoxy alkane or polytetrafluoroethylene, as these can withstand harsh conditions.

However, metal valves are a better choice if the gasses contain a lot of pressure.

Flow Rate

The rate at which the material flows through the valve is also an essential consideration to take into account, and the higher flow rates might have a different requirement as compared to the lower ones.

Also, the flow rate depends on the kind of material, whether a gas or oil, because gas is dry and oil has a higher rate of viscosity.

Pressure and Temperature Requirements

Pressure handling is essential for a valve, and if it fails to handle the pressure of the material flowing, it won’t be able to regulate it.

Hence the valve diameter and wall thickness must be assessed along with the material when choosing it for such pressures.

The temperature has a role to play; for instance, if the valve needs to be installed at high temperatures or if the fluid has a very high temperature, the selection needs to be made to keep these things in light.

Materials of Construction

The material from which the valve is made must be compatible with the fluids or gasses that will pass through it so that no chemical reaction occurs.

Compatibility with Process Requirements

The valve you choose must be compatible with the process because some valves just either open or close the passage of the flow, and some regulate it by controlling the amount of flow.

These factors must be considered to ensure that his chosen valve matches the process.

Automation and Control Requirements

Many valves work automatically as they have a power supply associated.

In this case, the function of the actuator must be assessed whether it follows pneumatic, electronic, or hydraulic control.

Maintenance and Repair Considerations

Valves need maintenance almost every other day because they cannot function properly if left unmaintained, so it is essential to choose such valves that are easier to maintain.

The Importance of Choosing the Right Valve for Your Oil & Gas Process

The proper valve selection plays a significant role; every valve serves a different purpose and may not be suitable for particular applications.

The temperature, pressure, environment in which the valve is operated, and its purpose must be assessed carefully when choosing the type of valve.

For instance, the ball valve is suitable only in cases where you need an immediate shut-off and passage opening.

In contrast, the needle valves allow even a minimal amount of fluid to pass and a considerable amount too.

When choosing the type of valve, everything that flows and the surroundings of that flow must be taken into consideration.

Conclusion

After going through the guide above, you must know the different valves and the significance of choosing the right valve.

If you are looking for these valves and need them of high quality and the best price, you can contact us at INOXCN.

We provide you with various valves suitable to serve your purpose, and we even guide you regarding selecting the suitable valve, so get in touch with us today.

Related Posts

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email from “sales@inoxcngroup.com”

Leaving So Soon?

Why not get our FREE catalogue with price list?