One-Piece vs. Two-Piece Ball Valve: Which One to Choose?

07 Oct.,2024

 

One-Piece vs. Two-Piece Ball Valve: Which One to Choose?

Every ball valve, whether manual or operated, flanged or NPT, brass or stainless steel, serves a different purpose for an industrial piping system. That&#;s why it is vital to understand their operation and features to select a suitable one from the best valve manufacturer in China.

You will get efficient and thoughtful service from Cencho.

A one-piece ball valve features a solid cast body to reduce the risk of leakage. It is inexpensive, and it is &#;impossible to repair it. Similarly, fixing a two-piece ball valve is impossible unless it is removed from service. Such a valve comprises two pieces where one piece has one end connection and the body. The other piece fits into the first one to hold the trim and includes the second-end connection.

Although the differences between these two valves are tricky, their understanding is essential for various processes. So, let&#;s learn everything about one-piece vs. two-piece ball valves!

Everything to Learn About One-Piece Ball Valve:

A single or a one-piece ball valve features only one body part. In this device, the trim attaches to the seals through end connections made of the same material as the body. Since its port size is not the same as its line, it results in a small bore design. A device bought from an industrial ball valve company comprises a ball, a PTFE ring, and a lock nut.

Users rarely or never experience leakage problems with this type of construction. However, the main downside to this type of device is it is irreparable, i.e., it cannot be replaced. It features a reduced diameter, and its flow diameter is smaller than the thread diameter.

Advantages of Using One-Piece Ball Valve:

  • It provides little fluid resistance and zero friction on the switch.
  • Its resistance coefficient is similar to that of the same length of pipe.
  • It is lightweight and takes up very little space in a piping system.
  • Its sealing surface material is used with good sealing performance and a vacuum system.
  • It is easy to operate and quick to open and close due to 90 degrees rotation.
  • Its maintenance is convenient as its structure is simple, the sealing ring is movable, and it is convenient to replace and dismantle.
  • It is more affordable than its competitors due to its simple design.

Since it is a relatively new ball valve type, it offers some unique advantages, reducing the size of the actuator. Its working principle is to make the valve unblocked or blocked by rotating it.

In high-demand industries, a one-piece ball valve is rarely employed because they are difficult to repair and replace. However, a one-piece ball valve can be utilized in applications where a reduced flow is not a concern. It works effectively in such applications. Some common uses of this device are in food service machinery, liquid filling equipment, and motor fluid filing equipment.

Everything to Learn About Two-Piece Ball Valve:

A two-piece ball valve contains two independent components connecting them through a bolt, thread, or flange assembly. These pieces have body and end connections. However, since two separate sections are combined in this valve body, there is a high chance of leakage. It is used to cut off, distribute, and alter the flow direction of the medium in the pipeline.

As a result, a two-piece ball valve is unsuitable for high-pressure applications. Unlike a one-piece valve, it is possible to disassemble it for internal component repair because of the connection. Its sealing effect is better than a one-piece ball valve and is further divided into a top entry floating ball valve, an elastic, and fixed one.

Advantages of Using Two-Piece Ball Valve:

  • It offers minimal fluid resistance whose coefficient is equal to the same length of a pipe.
  • It is lightweight, occupies less space, and its design provides good sealing performance.
  • Its structure is convenient to repair and maintain due to its simple design and movable ring.
  • Since the valve seat and sealing are isolated from the medium, there is no corrosion on the sealing surface.
  • Its medium does not erode the piece quickly because its sealing cover and seat are isolated.
  • It requires only a 90 degrees turn to open or close, thus making it convenient for remote control.

A two-piece ball valve is commonly used in various applications with any media because of the ease of maintenance in a wide range of industries. A few industries employing a two-piece ball valve in their applications include food, manufacturing, and automotive. Its working principle is to block the valve or unblock it by rotating it.

Difference Between One-Piece and Two-Piece Ball Valve:

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Here is a quick table to help people understand everything they need to know about one-piece vs. two-piece ball valves:

BASIS OF DIFFERENCEONE-PIECE BALL VALVETWO-PIECE BALL VALVENUMBER OF PIECESIt consists of a single, solid cast body.It contains two separate pieces, with the connection either through a bolt and flanged assembly or threaded.REPAIR OR SERVICEIt is impossible to repair or service a one-piece ball valve.A two-piece ball valve allows for limited repair and maintenance.PORT AVAILABILITYA one-piece ball valve does not have the same port size as the line.A two-piece ball valve is available in complete port configurations.COSTAcquiring a one-piece ball valve is cheaper than a two-piece ball valve.A two-piece ball valve is a costlier option than a one-piece ball valve.COMMON APPLICATIONSFoodservice equipment, liquid filling, petrochemical city water supply and drainage, and automotive fluid filling equipment.Foodservice equipment and automotive industries.DISASSEMBLEMENTIt is impossible to disassemble a one-piece ball valve for internal component repair.Unlike a one-piece ball valve, it is possible to disassemble it for internal component repair.

In industrial piping systems, a ball valve functions as a shut-off device to regulate the flow of media, especially liquids and gases, passing through it. It controls the flow by rotating the ball with a bore located inside it. Industrial valve manufacturers offer their devices in several industries, including chemical storage, oil and gas, residential applications, and manufacturing.

Since it is available in many types, such as one piece, two pieces, and three pieces, choosing the one with a body suitable for a particular application often becomes challenging. While a one-piece ball valve has only one body portion, a two-piece valve has two body components threaded together.

Parting Words

A one-piece ball valve is typically considered a thrown-away because it is difficult to repair it for maintenance. But it is still an economical option than its counterparts, such as a two-piece valve that feature a main body and a single-end connection. One can quickly repair it, but it is often difficult due to galling in the threads when the end plug removes from the valve body.

Hopefully, this guide helps select the most appropriate ball valve for a specific application. You can contact us to purchase high-quality ball valves from a reliable manufacturer.

What is the difference between 1/2/3 piece ball valves?

What is the difference between a 1Pc, 2Pc and 3Pc Ball Valve?

Ball valves come in one, two, or three pieces. One piece being manufactured with only 1 body part, Two piece ball valves consist of two separate pieces, with the connection between them being either threaded or a bolt and flange assembly. As you may have guessed, a 3 piece ball valve consists of three pieces, two end caps and a body

Ball valves are employed throughout many commercial, institutional, and industrial venues where the need to isolate part of a system is necessary, or even just to regulate the on/off condition of system fluid flow. The product variants are almost uncountable, with a version to accommodate almost any application. When selecting a ball valve, one facet of construction will be evident in your research.

 

1 Piece Ball Valve

 A one piece ball valve, can also be referred to as single piece ball valve, has a body and end connections formed from a single piece of material. This construction presents a comparatively reduced number of opportunities for leakage. The valve trim and seals are inserted through one of the end connections. This type of valve will not have a port size equal to the line size. The simplicity of the one piece body design tends to make their cost lower than the other versions. Once the valve is in place, it cannot be serviced without removing the entire valve assembly from the piping system. One piece ball valves are inexpensive and generally not repaired.

Are you interested in learning more about 1-Pc Ball Valve? Contact us today to secure an expert consultation!

Buy One Piece Valves online here

2 Piece Ball Valve

A two piece ball valve consist of two separate pieces, with the connection between them being either threaded or a bolt and flange assembly.  They generally have one piece that includes an end connection and the body, plus a second piece that fits into the first that will hold the trim in place and provide the second end connection. The construction presents an additional leak potential where the two pieces are joined, but also allows disassembly of the valve for replacement of the internals. These valves can provide full port service and bidirectional flow shutoff.  We sell these as female threaded and flanged ends.

3 piece body ball valve

A three piece ball valve ball valve consists of three pieces, two end caps and a body. The end caps are welded, threaded, or flanged to connect to the pipe on either side.  A three piece ball valve essentially separates the connection portions of the valve assembly from the body of the valve. These will be more expensive than either of the other two types, but their allowance for removing the valve body and trim from the piping system while leaving the connections in place may prove valuable for many applications. Full port and bidirectional shutoff can be provided by this construction.

2 piece ball valve vs 3 piece

The main advantage for a 2 piece vs 3 piece ball valve is that the 2 piece ball valves are cheaper.  The main advantage for a 3 piece ball valve vs 2 piece is that you can easily change the seals by unbolting the end caps and removing the  centre section.

Stainless Steel Ball Valve Supplier

Should you require Stainless steel ball valves, look no further you have come to the right supplier. At AK Valves Ltd we are considered to be a leading supplier of ss ball valves and are a family run business with over 25 years of experience in the area. As specialists in providing a range of stainless steel ball valves, we aim to ensure that you receive the most comprehensive range of ss ball valves and associated fittings. All of our stainless steel ball valves can be found online and are available to purchase from our website. Should you require any further information, feel free to contact the team at AK Valves Ltd, as stainless steel ball valve suppliers we will be more than happy to answer any questions or queries that you may have. 

When it comes to getting the right SS ball valves, as specialists, at AK Valves Ltd we understand how essential it is which is why we offer an extensive range of valves including stainless steel products. Quality is vital, especially to the team at AK Valves Ltd and this is why when it comes to looking for a SS ball valve supplier, there&#;s no need to consider another company. We have got you covered and what&#;s more is we are known for our excellent reputation when it comes to supplying our clients with Stainless steel ball valve products.

Stainless Steel Ball Valves UK

SS ball valves are often used as shut off valves, the valve will include a rotatable ball with a bore. Stainless steel ball valves are a popular choice as they are both durable and cost efficient, they can also be used for a wide variety of purposes including water, air, corrosive chemicals, acids and bases. In comparison to brass ball valves, they are rated for higher temperatures and pressures and have higher mechanical strength. These types of valves can also be easily removed for replacements, inspections and cleaning. At AK Valves Ltd, our range of SS ball valves have all been manufactured to the highest standards and are highly durable, ensuring that they last. 

At AK Valves Ltd, we ensure that we provide one of the most comprehensive ranges of stainless steel ball valves and associated fittings. Should you be unsure of what exactly you require or if you cannot find the exact product that you need, please don&#;t hesitate to call our team today. At AK Valves Ltd we&#;re experts when it comes to quality valve products and our SS ball valve range. 

Stainless Steel Pipe Ball Valve

When it comes to SS ball valves, there&#;s a number of reasons why they are a popular choice, this includes that they are lightweight, strong and long lasting.  The material means that they are suitable for use in sanitary applications, and they are also resistant to chemicals and acids. 

Choose AK Valves Ltd

We have been supplying Stainless Steel ball valves to customers and clients across the UK for a number of years. Our range of SS ball valves are available to buy online and suit a number of requirements. When it comes to using stainless steel ball valves they will support a range of usage and when you choose AK Valves Ltd as your provider, you can trust that you&#;ll receive quality. Here are just some of the reasons why you should choose AK Valves Ltd:

  • Leading online supplier of stainless steel ball valves
  • Experts in valves and associated products
  • More than 25 years of experience
  • Supply an extensive range of stainless steel ball valves

Buy Stainless Steel Ball Valves from AK Valves Ltd

When it comes to Stainless Steel Ball Valves, the AK Valves Ltd team are all highly skilled and knowledgeable, they will guarantee that you receive the best possible SS ball valve product. No matter what type you are looking for the team at AK Valves Ltd can assist. We are also able to provide you with a range of expert guidance, simply contact our team today for more information on the Stainless steel ball valves that we provide.

 

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