Split Body Ball Valve

Kinvalve split body ball valves designed with heavy duty according to API 608 and API 6D certificates, are used for oil and gas industries with easy access for maintenance, repair or replacement.

  • api-6d-split-ball-valves
  • Floating-Split-Body-Ball-Valve
  • Split-Body-Ball-Valve-Paintings
  • Forged-Steel-ball-valve-drilling
  • Trunnion-Split-Ball-Valve
  • api-6d-split-ball-valves
  • Floating-Split-Body-Ball-Valve
  • Split-Body-Ball-Valve-Paintings
  • Forged-Steel-ball-valve-drilling
  • Trunnion-Split-Ball-Valve


  • Construction – Two-Piece or Three-Piece Body, with Flange Ends,
  • Body Material – Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel, Special Alloy
  • Ball – Floating or Trunnion
  • Stem – Forged Blowout Proof Design
  • Seat – Soft or Metal-to-Metal
  • Size Range – DN15-DN600
  • End Connection – Flange, BW, SW
  • Pressure Rating – Class 150 – Class 2500
  • Standard – Design to API608/6D, ASME B16.34, Flange Dimension to ASME B16.5, Butt Welding to ASME B16.25, Face to face meets ASME B16.10, Inspection and testing according to API598 API6D
  • Temperature Rage – -40°F – 650°F


What is a Split Body Ball Valve?

Split body ball valve has two or three body parts, which are bolted to contain the ball with flange connections, either floating or trunnion ball.

Split body ball valves of Kinvalve are constructed with strong and steady materials along with a robust design. These are designed for heavy-duty usage and work just fine for a good long period of time. This saves you from the difficulty of getting your ball valves faulty, frequently.

Split ball valves give convenient access to the internal parts of it. This makes the maintenance easy for you. You can repair or replace the faulty part all by yourself. This saves your money as you do not have to change the whole product but just the damaged piece of it.

When two different types of materials get rubbed together, they result in the production of static electricity. A similar case can occur in ball valves and can cause a fire. Kinvalve split body ball valves offer an anti-static design that prevents the accumulation of static electricity.

Anti-Static Devices

Kinvalve offers a customized set of seats in the split ball valves. You can choose that according to your need and preference, either you want to get the soft seats or metal seats. And you also can find the blowout proof stem in the split ball valves.

At Kinvalve, the split ball valves utilize many special features to benefit you to adopt a widely usage. Such as the ISO mounting flange, Fire-safe design, Self-relieving Seat, Double Piston Effect, Double Block and Bleed(DBB), Double Isolation and Bleed Valve, Low Emission Sealing and Emergency Stem and Seat Sealant Injection.

For more details, please contact us.

Kinvalve split ball valve has a pretty modern design for its usage. It gets manufactured in different materials depending on your choice. You would find diversity in this product that would help you decide easily.


The Kinvalve split body ball valve gives you a diversity of arrangements. The parts can be altered in terms of material as well as sizes and design according to your choice.

Split ball valves made with the casting method are known as cast steel body split ball valves. Casting is the method in which the metal is firstly in a liquid form, which then gets the shape of whatever mold we pour into it.

It hardens and takes the shape of that mold. Cast steel bodies are more complex detailed in design.

Forged steel split ball valves are those which get manufactured through the forging of the metal. It is stronger and more heavy-duty but some complex and delicate parts are hard to forge. These are great for corrosive and acidic fluids.

Split body ball valves also include a blow-out proof stem design. In this design, the stem has a shoulder on the lower position, it prevents the stem blow out upward when the gland is removed and the valve is still under pressure.

Blow-out Proof Stem

The flexible configurations are there to help you in every way possible. They are convenient and user friendly for corrosive and abrasive fluids. You do not have to worry about damage and leakage of your chemicals anymore.

It is most known for its flexibility and extraordinary sealing property. It makes it handy for you to clean and clear it properly leaving zero residues and dirt behind which keeps the product new and safe for the long run.

Kinvale is known best for the quality and reliability of its products. There is no compromise on the materials of our product line so that you are never provided with a faulty product.

Kinvalve offers a full port split body ball valve which allows you to have a fast and steady flow.

Full port means the inside diameter of the ball valve is the same as the size of the pipeline it is going to attach with.

This provides a seamless flow without wastage. Your satisfaction is the highest priority of Kinvalve thus it provides you with a wide range of sizes and designs in its split ball valves.

Kinvalve split body ball valve has robust construction for safe transmission of liquids or gasses through it. Its modern design gives more room for safety and reliable work.

It possesses a fire-safe design that protects the split ball valve from getting damaged and prevents the fluid or gas from leakage. A split body ball valve with two sets of seats can perform a fire-safe activity.

Fire-safe Split Body Ball Valve
Fire-safe Design

In case of fire, the secondary seats melt and the primary seats keep on working safely preventing any kind of leaks.

To make your precious time worth spending, Kinvalve makes the availability quick and safe. The fine quality saves you from the continuous wastage of money in the repeated maintenance and replacement of your ball valves.

You can get the finest products at reasonable prices here. We provide a special range of prices in case of larger quantity orders. Feel free to contact and reach out to us for your desired products. We promise a fast and sound delivery service.


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Split Body Ball Valve Series

Kinvalve split body ball valves are one of the most important product line. We can provide floating and trunnion mounted split body ball valves with soft or metal seats for your various industries.

  • Floating-Split-Body-Ball-Valve
    Floating Split Ball Valve

    Kinvalve Floating split body ball valves are specially engineered in heavy duty applications, especially excellent for high pressure condition, with size range up to Class 1500. The split ball valves can adopt 2-piece or 3-piece body, manufactured in casting or forged stainless steel, carbon steel. Soft or metal sealing for your options.

  • Trunnion-Split-Body-Ball-Valve
    Trunnion Split Ball Valve

    Kinvalve Floating split body ball valves are specially engineered in heavy duty applications, especially excellent for high pressure condition, with size range up to Class 1500. The split ball valves can adopt 2-piece or 3-piece body, manufactured in casting or forged stainless steel, carbon steel. Soft or metal sealing for your options.

Feature Box


Two independent isolated valves are to block the line pressure. This gives you the convenience to drain the flow in the downstream in order to execute repair or sampling.

Emergency Seat Seal

In the even of valve seat failing due to various reasons, the sealant will be injected to seal the valve temporarily until maintenance is undergoing.

Low Emission Stem Sealing

The live-loading stem packing together with the stem O-rings provide the superior low fugitive emission complying with ISO 15848.

Mounting Flange

With the top mounting flange, you can assemble any other supplier’s actuations for these split body ball valves easily, as long as they are compatible with the ISO 5211 standard.


  • Split body ensuring ease of maintenance
  • Bubble tight sealing from zero to full pressure rates
  • Double stem seal providing replacement in field capability
  • Variety of seat materials according to your need and choice
  • Easily automated built-in mounting pad for your convenience
  • Anti-static, ball-stem-body devices to avoid electricity built-up


Kinvalve can provide various overlays on balls and seats to distinguish your different demands. The hard-facing weld overlay provides excellent wear resistance. The corrosion resistant weld overlay ensures better corrosive resistance. The other specific overlays like TCC, CCC or ENP, bring the extra protection under the demanding conditions.

Coating & Painting

Kinvalve provide the epoxy paint for cast carbon steel split body ball valves in common use. A wide range of RAL color paints for your options. You also can require the special paint system according to your applications.


Single Piston Effect

SPE is also called self-relieving seat. When the pressure in the cavity overcomes the seat ring spring force and pipeline pressure, the seat ring will move away from the ball. This action will release the excessive pressure from the cavity to the pipeline. The excessive pressure will be relieved to the upstream and downstream.

Double Piston Effect

In a split body ball valve, you can request the two seat rings to provide a tight sealing with the ball surface on both upstream and downstream. The double safety seal makes your split ball valve more reliable. DPE design will request an external venting valve to relieve excess pressure in the body cavity.


Advanced Processes and Equipment Ensure Reliability

Design and Analysis

A team of well educated and experienced engineers, aided by advanced tools, design high-quality products that are easy to produce through certified processes.

Testing and Inspection

At Kinvalve, all valves must undergo strict testing before shipment. All leakage tests must comply with API 598 or EN12266 standards. You also have the right to make special requests, such as ultrasonic testing.

Split Ball Valve: The Ultimate FAQ Guide

This guide is all about what you would want to know regarding a split body ball valve, be it about its working, appearance, size, or types.

It will make it easier for you to decide before you actually buy it.

What is a Split Ball Valve?

It is the type of ball valve made up of two sometimes three or four halves, joined together to make the whole product.

Since its body parts are divided, it is called a split body ball valve.  The parts or halves are joined together with the help of bolts & nuts or screws.

The halves when get docked together, perform their function properly. It is designed as such to work perfectly even under drastic conditions. Its body shape helps it maintain fluid pressure.

Do Split Ball Valves fail?

Like anything else in the world, split ball valves can turn out to be imperfect due to some reasons.

No valve can work perfectly forever and it is destined to wear out and get damaged over time.

A few reasons due to which your split body ball valves can get damaged early are listed below:

a)Leakage of a split ball valve happens due to the kind of seats used in it. There are two types of seats used in a split body ball valve

1.Soft seated ball valve

Soft Seated Ball Valve

2.Metal seated ball valve

Metal Seated Split Ball Valve
Metal Seated Ball Valve

The split ball valve with metal seat leaks due to low sealing capacity and frequent wear.

Soft seal split ball valve due to the seats aging, wearing, or temperature and pressure factors to damage, resulting in leakage.Usage of soft seated ball valve with dirty fluids also may cause damage and end up leaking.

b)Metal seat in a ball valve is not suitable for a perfect torque action which again leads to the leakage of fluid.

c)The body parts of the product were not docked together perfectly.

d)Bolts and nuts getting moist and affected from the outer environment turn out rusty.

e)Leakage of fluids from at certain points which ultimately result in rusting and stop working.


f)You may have chosen an unsuitable body material for the fluid medium, resulting in corrosion and leakage.

g)You did not clean it properly and frequently if it was placed somewhere where dust had easy excess to it, ruining the perfect functioning of the split ball valve.

h)Check for loosened bolts and nuts and tighten them so that the product does not fall apart.

i)Overpressure of fluids or any other thing can bend the metal from certain sensitive areas sometimes.

Here are some trouble shootings for your information.

LEAKAGE THROUGH THE VALVEBall surface damageReplace the ball
Seat damageReplace the seats or try with an injection of sealant grease (For trunnion mounted construction)
Not complete closureCheck Open/Close limits and settings
BALL MOVEMENT NOT REGULAR (ACTUATED VALVES)Dirt between ball and seatsFlush the inside, operating the valve 5 times
Dirt between ball and body cavitiesFlush the inside, operating the valve 5 times
Not sufficient air supply flowConfirm working conditions are as per request
Not sufficient air dischargeInclude quick exhaust valve
VALVE TORQUE TOO HIGHSeat damageReplace the seats
Dirt between ball and seatsFlush the inside operating the valve 5 times
Dirt between ball and body cavitiesFlush the inside operating the valve 5 times
Excessive Pressure or TemperatureConfirm working conditions are as per request
STEM LEAKAGEStem nuts  looseTighten stem nuts
Damaged stem seal surfacesReplace stem
Damaged stem sealsReplace stem seal or try with an injection of sealant grease (For trunnion mounted construction)
BODY SEAL LEAKAGEGasket damageReplace gaskets
Excessive Pressure or TemperatureConfirm working conditions are as per request
Excessive load from the piping systemVerify piping system architecture
EXCESSIVE VALVE NOISEError in valve sizingConfirm valve sizing
Not complete openingCheck Open/Close limits and settings
FAIL IN VALVE MOVEMENT AFTER ELECTRICAL INPUT (ACTUATED VALVES)solenoid valve failConfirm power supply Replace the solenoid
FAIL IN LIMIT SWITCH SIGNALIncorrect settingsCheck Open/Close  settings
The limit switch is brokenReplace limit switch
Incorrect power supplyConfirm working conditions are as per request
Can Split Ball Valves be repaired?

The answer depends on how damaged the product is.

Split body ball valves are made of strong materials to overcome and bear high pressure and drastic conditions.

However, it is almost inevitable for any ball valve to not get damaged.

Split ball valves are most likely to get damaged due to leakage and it happens because the seats used in them fail to seal.

To repair that you need to change or repair the seat inside it.

It is better to understand your usage first after that you should buy the split ball valve with the respective kind of seat inside it.

If the damage belongs to outer spare parts and covering of the valve, then you can simply remove and replace it with a new one.

If the actual ball has become faulty, then you will have to change the whole valve as it will not stop leaking at this point.

What is the Flow Direction of the Split Ball Valve?

A split body ball valve has two to three types and its direction of flow varies with that.

3-way split body valve has the ability to divert or mix the fluid flow from three ports.

It can either join two ways of fluid together or close two ways and allow the fluid to pass in one direction only.

It also has the characteristic to let the liquid pass in all three directions.

What are the Types of Split Ball valves?

There are commonly 3 types of Split Body Ball Valve:

  1. Two-piece split body ball valve
  2. Three-piece split body ball valve
  3. Multiple ports split body ball valve
What is the Working Principle of Split Ball Valve?

A regular split body ball valve works or moves at an angle of 90 degrees.

When the handle or regulator moves, the ball inside moves along.

This results in the regulation of flow control.

When the ball rotates to open, it makes a path perpendicular to the fluid flow way.

Similarly, when it rotates in the opposite direction, closes the way from which fluid flows.

When the seat comes in contact with the ball and attaches, it then seals.

Why Would You Use Split Ball Valve?

Before buying the product you must know in how many ways it can benefit you.

This would help you make a fine decision about it.

This product will help you in the following ways:

  1. You will not have to worry about a high-temperature environment as it is made with fine material and has the ability to bear that.
  2. It works best even under extreme pressure.
  3. It is well suited for abrasive or harsh liquids.
  4. It will give you a rich performance as compared to other types of valves in the market.
  5. Its thickness prevents leakage on a better level than others.
  6. Split ball valves are removable and their construction is always highly precise which makes it easier for you to replace or repair the components.
  7. Apart from separate parts, even the whole unit can be replaced perfectly without any difficulty.
  8. Split ball valves have come with many options including trunnion mounted balls, spring-loaded seat rings or Double Block and Bleed function, etc.
What is a Three-way Split Ball Valve?

A Three-way split ball valve has three openings to it.

This means the fluid or gas can flow from three different directions.

It offers a wider range in the world of ball valves by offering more area and openings.

This type shuts off the flow from any of the 3 sides of it making way for fluid in its desired direction.

How to Replace a Split Ball Valve?

The process is not that complicated and you can probably do this on your own.

Following are the tools you might need for the process:

  1. Screwdriver
  2. Wrench
  3. Piece of cloth
  4. Nuts and bolts
  5. Any oil for lubrication depends on your availability and need.

After getting access to all these, move on to the next steps.

  1. Shut off the fluid or gas supply so that it does not create any mess for you.
  2. Pat the cloth over it to absorb any leftover water or fluid.
  3. To change or replace the ball valve you need to open its nuts and bolts with the help of a screwdriver.
  4. Lubricate the bolts with the oil if they are hard to open due to rust or being in that place for a long time.
  5. After opening them, remove the outer parts piece by piece.
  6. Disassemble all the parts of the split ball valve and place it aside after removing it.
    1. Align the parts you need to put back together.
    2. Carefully choose and inspect the split ball valve for replacement before actually doing it
Split Body Ball Valve Explore View
Disassemble of split ball valve

Follow all steps carefully and you will be able to replace it.  Seek professional help in case of any difficulty.

Why is it called Split Body Ball Valve?

The name actually indicates the physical structure and form of a product.

The product looks like it has a crack in it since it is divided into two halves joined together.

Split literally means divided or broken into two or more parts.

The product has the working principle similar to other ball valves, split into two portions the ball gets formed when the parts align together.

It is different from regular valves since it is not manufactured as a whole body.

This is the reason the product is called and known as “Split Body Ball Valve”.

What are the Materials of Split Ball Valves?

Different materials get used in the manufacturing of Split Ball Valves.

The most common and reliable of them are:

  1. Stainless Steel
  2. Carbon Steel
  3. Cast Iron
  4. Brass or bronze
  5. Plastic

The working and durability of split ball valves depend as well as varies on the type of material it is made of.

The type of material which gets used in the making also makes the product either cheap or expensive.

Good quality material prevents mishaps, makes the function of the split ball valve better in many ways, be it leakage control, pressure bearing ability, temperature resistance, or prevention of rust.

What are the Parts of a Split Body Ball Valve?

A general split body ball valve has the following parts which make it a whole product when joined together:

  1. Body
  2. Cap
  3. Ball
  4. Ball Seat
  5. Body Gasket
  6. Bolt Washer
  7. Bolt
  8. Lower Thrust Washer
  9. Compress Ring
  10. Upper Thrust Washer
  11. V-Ring Stem Packing
  12. Thrust Washer
  13. Anti-Static Stem
  14. Gland
  15. Belleville Washer
  16. Stem Nut
  17. Handle
  18. Handle Sleeve
  19. Rivet
  20. Stem Adapter
  21. Triangle Stopper
  22. Lock Saddle
  23. Locking Trigger
  24. Fix Plate
  25. Stop Bolt
Parts of Split Ball Valve

Each part has its own significant value and the absence of any single piece can affect the working of the product.

What is the difference between a Split Ball Valve and a Single Piece Ball Valve?

The single-piece ball valve is made as one whole product.

It has no cracks or halves in it which need to be joined together to function properly.

It gives surety of little to no leakage due to how it is formed.

A single-piece ball valve is a smaller product as compared to a split body ball valve and is used accordingly.

Whereas a split body ball valve is an advanced type of ball valve.

It is formed in that way to provide better performance and more flow directions.

The single ball valve is mostly used in sanitary and at a domestic level while the split body ball valve due to its diversity is commonly used at an industrial level.

How is a Split Ball Valve better than a One Piece Ball Valve?

The preference of one product over the other depends on the number of ways it works better than the other.

A split ball valve has more options to give to its users, unlike a one-piece ball valve.

It was designed a little complicated so that it may perform more and better functions than one-piece ball valves, thus it is not a simple product.

Split body ball valves are engineered for your most complicated and severe applications.

Thanks to their ingenious construction, you can customize these split ball valves with numerous selections, such as floating or trunnion mounted balls, soft or metal seats, spring-loaded seat rings, or Double Block and Bleed function.

You can use these split body ball valves for a broad range of applications, you will not have to worry about extreme pressure levels as split body ball valves work just fine under high-pressure levels.

These can be added to already manufactured and fixed taps according to your need of use or changing conditions.

The one-piece ball valve has only one type and its only function is to connect one part of the flow to another with simple opening and closing.

On the other hand, a split ball valve is the one, offering many functions it has two or three types in its category.

Split body ball valves are designed with two piece or three piece bodies, you can maintain them easily and quickly.

Split ball valves feature bolted body construction providing uncomplicated uncomplicated disassembly or assembly, you can conveniently access the trim and replace components without any difficulty.

These are some of the reasons which make it clear that a split body ball valve is better in usage than one piece ball valve.

What are the Benefits of a Split Body Ball Valve?

Thanks to the perfect design, you can see the figure of split ball valves in various industrial fields.

Easy to maintain

Using a split body ball valve will save you from extreme difficulties and complexity as it is designed in an easier way to perform its function faster with more reliability.

Its rigorous design production makes each part of the product convenient to replace and maintain.

You can replace whole units of it if needed with lesser money and effort.


Split body ball valves are durable and long-lasting due to their type of construction.

The material and technique used in its manufacturing make it reliable even for abrasive and acidic fluids.

Split body ball valves are made of strong and sturdy materials so can bear uneven, powerful forces of any kind.

The bolted split body ball valves are often used in transport pipelines and can perform other heavy-duty functions.


Many options come with split ball valves, some of those are:

Trunnion mounted balls

Spring-loaded seat rings

Double block and bleed function

These give you variety and flexibility in terms of usage. It does not limit itself to one function only but gives you a list to choose from. Its wide range of functions and options makes it a flexible product for you.

When do you replace a Split Body Ball Valve?

A split ball valve is not meant to work perfectly forever, no ball valve is.

When you buy a product you are supposed to take good care of it afterward, else it will definitely wear out eventually.

Sometimes, even after taking every precaution split ball valves get damaged and stop working.

It can get rusty due to fluid leakage or a moist environment.

Its metal can get unstructured which affects the perfect functioning of the product.

Sometimes, the alignment of both halves of a split body ball valve does not match which leads to leakage.

These and many other reasons lead to the ultimate damage of the split body ball valve.

At that time, it becomes necessary to replace the damaged, non-functional split body ball valve with a new one.

Can Split Ball Valves Control the Flow Rate?

One of the basic functions of split ball valves is to control the flow rate of any fluid which is passing through it.

The amount of fluid that passes through the valve can be controlled by opening and closing it.

But for this purpose, the split ball valve has to use a V port ball valve.

V port ball is generally known as the ball for the control of flow.

It commonly rotates at the angles of 60, 30, and 15 degrees.

When you try and open the flow, the v port allows the regulation of flow in a very subtle manner, the flow starts at a specific speed which gradually changes according to your need.

As the ball rotates and the v-shaped port moves along, the flow rate differs with the angle of the v port.

V Port Flow Rating

If you open the valve only partially, less amount of fluid will be able to pass through it.

Similarly opening it fully will let more fluid pass.

Thus a split ball valve has a proper control overflow rate.

Does Split Body Ball Valve Design Prevent Leaks?

Yes, it definitely prevents leakage of fluid or gas.

Prevention of leakage mostly depends on loose or damaged sealing.

Just for the sake of a good sealing function, split body ball valves are made up of two types of seats that are metal seats and soft seats.

The introduction of soft seals in split body ball valves has made it become able to claim that it prevents leakage.

Soft seats fit perfectly leaving no space or air bubbles which does not let the fluid leak n any way.

Split ball vales are made of either stainless steel or carbon steel which are quite fine, and are often used in high-quality products.

Its thickness is made in such a way, the fluid does not get pass through it.

If the split ball valve is made of stainless steel, even the corrosive and abrasive fluids will not be able to harm it or create leakage.

In this way, a split body ball valve plays a vital role in the prevention of leakage.

Is Split Ball Valve a Fire-Safe Design?

One of the types of split body ball valves includes a fire-safe design.

In this type, even at an extreme temperature the valve does not leak or get damaged.

Even if the valve caught fire somehow, the valve is designed in such a way that only the outer will get damaged a little but the valve will work perfectly without causing any leakages.

This design usually has:

  1. Primary seat
  2. Secondary seat

In case of fire, the primary seal gets closed and the secondary seat works for fire safety.

Fire occurs in a normal ball valve, its seals burn out and melt, which results in damage.

On the other hand, a fire-safe ball valve having two sets and kinds of seals, on the disruption of fire the soft seal or primary seal gets exposed and might even melt.

But after this, the secondary seal will act as a fireproof seal and will not let the flow stop or get damaged due to fire.

Fire-safe Design
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