What Is a Full Port Ball Valve: A Detailed Guide - SIOvalve


Industrial valves serve several important functions, and to be able to handle that level of work, they come in varying sizes and shapes. Larger valves are meant for bigger pipes and related machines, and the material used in their construction has to match their sizes if they are to work as intended. 

Our focus today is on full port ball valves. We are going to look into what they are, how they function, how they differ from other valves around. If you have been curious to know what full port valves are all about, then stick around to the end and learn a  thing or two that will come in handy for you.

Full Port Ball Valves

A Pair of Valves

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A full port ball valve is a unique type of valve that permits unrestricted flow once the valve is opened. They tend to have larger bodies compared to standard valves, and this has the capacity to use a larger ball with a bigger opening on the inside. 

In most cases, the forged ball valves have the same size of openings as the pipes they serve, and this makes them a great component to have when setting up systems that have little to no flow loss. Once the full port valve is set to on in the open position, then it feels like there’s no valve in the way at all, allowing any material to pass through smoothly.

The Full Port Valve Design

Stainless Steel Valve

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The design of a full port steel ball valve is not the same as most of the other types. It begins with a straight flow path, thanks to the larger opening, which allows unrestricted flow through the given medium. The site of the pipe that is being regulated by the full port valve usually has the same diameter as the valve. 

This is to ensure that nothing leaks once the valve is closed shut. Operating this valve is not complicated at all since the ball inside the valve comes with a tiny hole that is smaller than the tube it is connected to. The purpose of this is to cause a pressure drop after the flow is restricted. This setup acts as a safety mechanism that ensures pressure doesn’t get out of hand as that could damage both the tubing and the valve.

Determining if you Need a Full Port Valve

Brass Valve

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Full port valves are not used for every application, even when they fit. They are much bigger and may not be appropriate for small-scale operations. So how do you tell whether you need a full port ball valve over a standard one?

There are some applications that require a full port and nothing less, and you can tell this by studying the flow resistance. If the suction pump of a pipe, for instance, experiences pressure drops, this can impact the performance of the entire structure, and you will need to go with full port valves to counter this so that the flow can be maintained at a constant rate.

The default option for pumps and tubes is the standard ball valve unless otherwise, and the main reason for this is the fact that it is a cost-effective way of controlling the flow in a variety of applications. Standard ports also come in handy where there are space limitations that can impact the overall design of the entire system. Situations like this would require a much smaller ball valve, and the best option would be a full port valve.

Materials used to Make Full Port Ball Valves

A Regular Ball Valve

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Like regular ball valves, full port ball valves are constructed using varying types of materials depending on their intended use. The following are some of the common materials that you will likely come across in the market today.

PVC: Polyvinyl Chloride is a common material used in making valves due to its ability to stay for long, its flexibility, and the fact that it doesn’t suffer from rust. Full port valves made using PVC tend to be cheaper and come in a wide range of colors.

Bronze: Bronze combined with brass is the ideal metallic material to make full port valves that are intended for systems that use lower pressure. The materials are resistant to corrosion and can hold their ground for a very long time before replacements are needed.

Stainless Steel: This is a more robust material that has the advantage of being rust-resistant and being strong enough to handle high pressures without collapsing. Full port valves made using stainless steel are a little heavier and cost more than PVC and Bronze, but they can handle geothermal systems that rely on high temperatures.

CPVC: This is Chlorinated PVC that is similar to regular PVC, with the only difference being that CPVC can handle higher temperatures. Full port ball valves constructed using CPVC can be used comfortably in systems that require high temperatures.

Iron: It may not be as flexible as PVC but when it comes to making ball valves that can withstand high temperatures and pressures then iron would be your best bet. The only drawbacks are that iron is heavy and is prone to corrosion.

Advantages of Full Port Ball Valves

2-Piece Port Valve

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There are benefits that you accrue from using full port ball valves when compared to using regular ones. Some of these benefits include the following.

They provide the unrestricted flow of materials through a tube or a pipe system to the maximum level. Full port industrial ball valves have the widest openings among all valves, and this makes them the ideal option to go for when dealing with high pressures.

They provide an airtight seal when closed minimizing losses and leaks in the process. When dealing with gases and liquids, you have to be extra careful with the valves that you chose to go with. If they are not reliable, that can translate to huge losses, something that valve suppliers are very wary of.

Owing to their sizes, they are easy to open and close. All it takes is a swift movement of the wheels, and the floodgates are either opened full or sealed completely shut. An operation that can be handled by one person.

They are versatile enough to be designed for both big and small-scale operations. This is the reason why you are most likely to find full port valves in a geothermal plant. When made with the right material, they can be used for just about anything.

Maintenance and repair are an easy affair, and there’s no need to dismantle the entire system to get this done. Full port ball valves are made up of detachable parts which can be cleaned independently, and this increases efficiency.

They are of high-quality design, and this gives them longevity and the ability to handle high pressure and temperature systems without collapsing. This is the reason full port ball valves are used in heavy industries around the world.


Full port ball valves are very reliable tools in high-pressure tubing and piping systems. They are not hard to operate and are of simple design, yet they handle a very important role in the manufacturing process. If you are looking to set up a plant that makes use of ball valves but have no idea where to begin your search, then check out our website at any time of the day, and all the questions you may have will be answered by our very able team of experts.

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