V-Port Ball Valves

V Port ball valve is a special type of ball valve, which can be used in regulating the flow accurately and precisely. Available in floating or trunnion mounted ball design with soft or metal to metal sealing.

  • v-port-segment-ball-valve
  • Segment-V-notch-ball-valve
  • v-port-segment-ball-valve
  • Segment-V-notch-ball-valve


  • Construction – Floating/Trunnion Ball
  • Body Material – A351 CF8M/CF8/CF3, A216 WCB, A182 F304 F316
  • Stem Material – A351 CF8M/CF8/CF3, A216 WCB, A182 F304 F316
  • Ball Material – Metal Seat: Stainless Steel with Stellite Hard Facing, Solid Tungsten Carbide
  • Seat – Soft or Metal to Metal
  • Size Range – DN15-DN300/1/2”-12”
  • End Connection – Flanged, BW, SW, Threaded
  • Pressure Rating – Class 150-1500
  • Standard – Design to API6D, ASME B16.34, Flange Dimension to ASME B16.5, Butt, Welding to ASME B16.25, Face to face meets ASME B16.10, API6DInspection and testing according to API598 API6D
  • Temperature Rage – -40°F – 650°F

You Need to Know More about the V-Port Ball Valves

From its name, it can be inferred that V-Port ball valves are ball valves with V-shaped inlets and/or outlets. This hole design can provide approximately linear flow characteristics to achieve precise control.

At Kinvalve, you can choose a V-port ball or a V-port seat ball valve. We have V notches allowing for 30º, 60º and 90º flow control options. They are adaptable to various flow conditions and offer optimal performance even in variable operation scenarios.


V-Notch Angle Options

When in the open position, the smallest section of the V opens first, allowing you to gradually adjust the opening to the desired degree for the media to flow through.

At this stage, it can provide you with relatively stable and precise control. As the opening continues to expand, the ability for precise control weakens.

Based on this control method, you usually need to choose a suitable structure to avoid damage to the V-Port ball valve due to fluid velocity and pressure.

Kinvalve can provide from small bore floating threaded ball valves to large diameter trunnion ball valves to meet your needs.

The V-shape of the bore is machined to ensure design accuracy and enable precise flow with no leakage. You can choose between metal and soft seats, which offer resistance to prevent leakage in a closed position.

Kinvalve v-port ball valve is ideal for applications where precise flow control and measurement of media, adaptability and efficiency are crucial. The unique design allows for higher velocity media flow.

Contact us today for more personalized information about the Kinvalve V-port ball valve.

Versatile V-Port Ball Valves

We can provide V-port ball valves with various design structures to meet your different application needs. You can choose the most suitable product from the options of soft seated threaded ball valves to trunnion metal seated ball valves.

  • Cast_V_Port_Ball_Valve
    Cast Steel Threaded Ball Valve, V Port Design

    Kinvalve threaded ball valves with V port design are cost-efficient choices for the regulating service requirements. These ball valves can only be tailored with V-shape port ball.

  • Threaded-v-port-ball-valve

    V port ball valves with threaded connections can be designed with a v shaped ball, or a v-shaped seat made of Forged Bodies. This type of v-notch ball valve also can be BW, SW or tri-clamp connections.

  • Flanged-v-port-ball-valve
    2-Pc Ball Valve, Flanged Connections

    2Pc flanged V notch ball valves have got enough space to contain a v notch ball or a v shaped seat design. There are carbon steel and stainless-steel bodies for your options. Metal seats on request.

  • 3Pc Ball Valve, Flanged Ends

    Cast steel 3pc flanged v port ball valves are flexible in end connections, including butt welding, socket welding, or tri-clamp types. With V notch angle from 15 to 90 degrees.

  • Segmented-Ball-Valve
    Segment Ball Valve

    A unibody trunnion mounted V port ball valve is designed with a hollow spherical ball, available with hard facing trim with wafer or flanged connections. Metal seats and soft seats for your options.

  • Trunnion-V-Port-Ball-Valve
    Trunnion Mounted Ball Valve

    Trunnion mounted v notch ball valves are designed with split bodies, metal to metal sealing with special harden coatings, perfectly for corrosive and abrasive fluid control applications.

Advantages of v-port ball valves

  • Precise Regulating Ability
  • Bubble Tight Shut-off
  • 2-in-1 Solution, shutoff and throttling
  • Capable of adapting to high-temperature and high-pressure applications
  • Soft or Metal seats options
  • Straight-thru flow path with high Kv values
  • Easy on-site maintenance

Details Determine Success

1)Anti-static stem, with blowout proof design, equipped with the first gasket for tightness
2)Optional Stem O-ring for bubble tight
3)Anti-Static Devices provide two transmission routes, stem-to-ball and stem-to-body.
4)Heat treatment and smooth finished stem reduces frication and operating torque.
5)Live-loading stem packing brings enhanced sealing performance and reliability.
6)Gland keeps the packing in position and creates the instant forces on the sealing system.
7)Belleville washers compensate the fluctuation of pressure or temperature to maintain the optimal sealing performance.

V Port Ball Valves: The Ultimate FAQ Guide

Today, I will answer all questions you have been asking about V port ball valves.

Whether you want to learn about the working principle, parts, specifications, material type, or features, you will find all information you need in this guide.

Keep reading to learn more.

What Is a V Port Ball Valve?

A v port ball valve is a valve that has a seat or ball or both that has a V shape.

When you actuate the v port ball valve, the section that will open first is the smallest section of the V.

Hence, providing your process with precise and accurate control of media flowing through the v port.

The media flows through these valves at a considerably higher velocity than other ball valve variations.

They, therefore, have to be constructed from high quality and robust materials.

You can use v port ball valves in many applications, including power industries, paper industries, chemical plants, etc.


V Port Ball Valve

What are the Components of a V Port Ball Valve?

Some of the main components include:


It is a sphere that has a hole in its center.

The hole in its center is called a bore.

Normally the bore serves as the flow path of the fluid when the cross-section of the fluid flow path and the bore is coplanar.

Otherwise, the flow is throttled or constricted. The ball, in this case, has a V-shaped bore.


The stem connects the ball to the control mechanism that rotates the ball.

It has packings such as O-rings to seal the stem and the bonnet to avoid leakage of the fluid.

The stem may be manually operated by a lever or a handwheel or operated by an electric, pneumatic, or hydraulic actuation.


The bonnet is an extension of the valve housing that contains and protects the stem and its packing. It may be welded or bolted to the body.

It is also made of hard metal, and it covers the opening made from connecting the stem to the external control mechanism.


Normally, the valve seats provide sealing between the ball and its body.

The upstream seat component is located adjacently to the inlet side of the V port ball valve.

Besides, the downstream seat is found on the opposite side of the upstream seat, which is adjacent to the discharge side of the valve.

Valve Housing

All internal components are contained inside the valve housing or body.

It is made of a hard and rigid metal that protects the components of the ball valve.

It also allows access to the external control mechanism that rotates the ball.

How Does a V Port Ball Valve Work?

If your V port ball valve is closed and you begin to actuate it, the small section of the V-shaped bore will open first.

This will allow you to have stable and precise control over the media flow in this stage.

The v port ball valve design requires solid and robust construction. Fluids flowing at high velocity may cause damages to the valve.

Despite being classified as control valves, V port ball valves are a tad bit inaccurate compared to other control valve types.


V Port Ball Valve Works (Assured Automation)

What Is the Difference Between V Port Ball Valve and Full Port Ball Valve?

A full port ball valve.

This is a valve that is specifically designed to have a larger ball diameter which is of a similar dimension to the present piping.

There is unrestricted flow through the full port ball valve when it is in an open situation.

This is because the hole diameter is similar to the piping diameter.

This gives it an edge over the V port ball valve, but only in applications that require such flow.

You can use full port ball valves for applications that require throttling.

You can also use them in applications with high flow coefficients and low-pressure drops.

This is because full port ball valves are widely considered as recovery ball valves.

A V port ball valve, on the other hand, is a ball valve with either a seat or ball that has a V shape. When you actuate the v port ball valve, the section that will open first is the smallest section of the V.

Hence, providing your process with precise and accurate control of media flowing through the v port.

The media flows through these valves at a considerably higher velocity than other ball valve variations.

They, therefore, have to be constructed from high quality and robust materials.

What Are the Features of a V Port Ball Valve?
  • They are available in socket weld, NTP threaded, and ANSI flanged end connections.
  • Also, the V port ball valves have manual actuation or configuration to ensure efficiency in automated control or processing.
  • The V port ball valves have an ISO 5211 mounting pad for actuators.
  • V port ball valves have low-pressure drops and can manage low flow controls, i.e., as low as 0.07 flow coefficients.
  • V port ball valves can work in high pressures of up to 150 PSI For steam and 500PSI for liquids and temperatures as high as 1000°F.
  • The V port ball valve is an exclusive option that allows you to precisely control and modulates media flow with 90°, 60°, or 30° V notch.
How Does a V Port Ball Valve Work for Flow Control?

It applies a principle known as the floating ball principle.

This principle modulates flow control in addition to providing a bubble-tight shut-off.

When you close the v port ball valve, the ball is pushed by an upstream pressure against the downstream seat.

This enhances the v port ball valve’s sealing capability.

This can shut off or control the bidirectional flow of media.

Hence making them best suited for applications in the gas industry.

What Are the Advantages of a V Port Ball Valve?

V port ball valves will provide your process with a variety of benefits compared to valve alternatives for similar control applications.

Our stainless steel threaded and flanged ball valves come in a compact package but still offer precise flow control.

Flow Control

Our 90° and 60° V port ball valves offer flow characteristics similar to those of control globe valves.

You can achieve your desired flow rate at the ball component rotates by angling it anywhere between zero to 90°.

The response time is faster because they have smaller actuators compares to massive diaphragm globe valve actuators.

Bubble Tight Shut Off

Other control valves used for similar applications as v port ball valves do not provide your process with effective shut off capabilities.

They may leak even when closed due to their ergonomic design, i.e., metal to metal seats.

V port ball valves incorporate the use of soft seats, which can shut off or control bidirectional flow and provide bubble-tight shut-off.

Using these in your application will save you a lot of expenses while reducing the amount of components in your system.

Low-Pressure Drop

V port ball valves are manufactured to do more than just restricting flow.

They are also designed to be applied in processes that require full and total unobstructed flow.

Besides, they allow the media to flow right through the ball valve, leading to a significant reduction in pressure drop.

They also have a considerably high Cv value, i.e., flow coefficient.

Making them appropriately able to achieve similar flow rates to bigger control valves.

High Shut Off Pressure

Larger control valves, e.g., globe valves, have meagre close-off ratings.

This means that you will need a very large actuator to actuate the valves.

V port ball valves have tiny actuators that you can use to shut off and operate regardless of the amount of pressure.

Meaning, with twice as small a valve, your process can still achieve efficiency in shut-off and operation.

What Are the Typical Applications of V Port Ball Valves?

You can use them in a variety of markets and multiple applications.

For example, storage and transmission, industrial, and gas treatment applications, to name a few.

You can also use them in: – pharmaceuticals, waste processing, leaching acid, bleach chemicals, agriculture, acid transfer.

Also in food processing and water treatment applications.

In these applications, v port ball valves are the most suited because they:-

  • Can stabilise fluid flow rates to make uninterrupted batch operation easy and efficient.
  • Control the liquid filling lines pressure.
  • Control heat exchanger temperature discharge through the steam feed line.
  • Maintain tank levels.
  • Control and regulate the temperature of the heat jacket.
How Do You Install V Port Ball Valves?

Each V port ball valve has a casting into its side of an arrow.

When installing the V port ball valve, orient it in the casting’s direction, which you should, in turn, align to the flow direction.

Doing this will ensure that the fluid you are controlling flows at the gasket’s bottom.

Thus, preventing damage.

What Are the Maintenance Procedures for V Port Ball Valves?

V port ball valves need regular maintenance to keep working properly.

Some kinds of valves are difficult to maintain, while others, like valves, can be opened and cleaned/repaired easily.

Here are some tips on how to maintain v port ball valves:

  • Unrig the inlet and outlet pipelines of the v port ball valve before you open it for maintenance. Some V port ball valves don’t have to be removed from the pipeline. However, you still need to unrig the pressure on all outlets before you start repairing or cleaning the valve.
  • Seal the spare parts of the V port ball valve when you’re cleaning or repairing the valve to make sure those parts are protected. If the ball is being used to regulate the flow of hazardous materials, sealing some parts may also help protect the maintenance workers.
  • Disassemble the valve by unscrewing the bolds uniformly and symmetrically. This will ensure the bolts remain undamaged and do not become loose. Screw them back in the same way.
  • Use appropriate cleaners for different parts of the valve. The parts made of metal should be cleaned by cleaning sprays made of gas. You can use alcohol and other cleaning agents on the parts of the valve made of plastic.
  • Apply lubricants to the moving parts of the valve to make sure they work seamlessly. Applying lubricants to the outer parts of the valve also makes it look clean and shiny.
How Many Types of V Port Ball Valves Are There?

V port ball valves are available with 90° degrees, 60° degrees, and 30° degrees V notch options. They offer more consistent and better control compared to traditional full and standard port ball valves.

We offer these variants of v port ball valves with their control ports machined and cast into the ball component instead of the seat as in most.

This will create conditions that reduce the need to replace valve seats while offering peak flow control characteristics.

Besides, the 90° degrees and 60° degrees options offer a considerably significant flow coefficient value.

The 30° degrees, on the other hand, enables tapered and finer control throughout the ball valve’s rotation.

What Is the Life Span of V Port Ball Valves?

A variety of factors influences the V port ball valve’s longevity.

Overall, they are popular as a result of their reliable sealing, long service life and durability.

They are completely capable of controlling contaminated fluids than other types of control valves without being damaged.

If used in the right applications, they can last up to one million cycles or even an entire decade.

What Is the Cost of V Port Ball Valve?

It is undoubtedly true that product safety and quality are the top priorities for you, the buyers and the equipment industry in general.

Here, we offer an excellent chance to acquire V port ball valves which are reliable, efficient and high performance.

We do all this at a reasonable price point ranging between 26 dollars and 100 dollars without compromising the above-mentioned parameters.

What Test and Qualifications Standards Do V Port Ball Valves Conform To?

For our v port ball valves to get into the market, it has to be certified to have met a few qualification standards.

These certifications imply that the v port ball valve is safe for application and will perform its designated functions efficiently.

These standards are:

  • V port ball valve design is constructed to meet ASME B16.34 or ANSI requirements.
  • End connections of the v port ball valve meet ASME or ANSI BPE- 1997/2000 requirements.
  • Have ISO 5209, MSS SP-25 valve body marking system.
  • Meet API 598 pressure testing requirements.
  • Conform to ISO 90001:2008 quality assurance requirements.
  • Are made FROM EN 10204-3.1 MTR classified materials.
  • Have an IEC 61508:2010; SIL 3 safety integrity.
What Are the Temperature and Pressure Ratings of V Port Ball Valves?

The maximum and minimum temperature ratings for V port ball valves vary based on the body style.

However, most are in conformance to standards posited by ASME.

This means they have flanges or end connection s that are either 900#, 600, 300, 150 or higher in class rating.

Thus, they can accommodate working pressure as high as 2250 psi.

The temperature ratings do not only depend on the valve body style as well but on seals and seats.

They can operate with temperatures of up to 550° Fahrenheit.

What Materials Are V Port Ball Valves Made of?

We manufacture them from stainless steel materials or their alloys because of their hardness and robust characteristics.

This means you can configure them for applications in almost every industry.

They are more durable and weigh way less than standard ball valves.

What Are the Limitations of Using V Port Ball Valves?

A limitation of V port valves is that you can’t use them to control slurry media or any media with suspended debris and particles.

These particles and debris may get stuck in the valve’s body cavities, e.g., the V-shaped bore.

This will, in turn, lead to valve failure, leaks or premature wear, causing you to incur additional replacement costs.

We do not recommend that you use V port ball valves in applications like drink and food systems, pharmaceutical, or bioprocessing applications.

Mainly because they are hard to clean. This is a potential health hazard as it may lead to contamination of control products.

V port ball valves have very bad throttling properties.

Their seats may be eroded by high-velocity fluid flow because they are partially exposed.

We do not recommend that you use the v port ball valves for sustained throttling usage.

The v port ball valves are prone to wear and tear.

Controlling the wrong fluid types can result in the v port ball valve being stuck, jammed or damaged.

What Is the Difference Between V Port Ball Valves and Standard Port Ball Valves?

A V port ball valve is a ball valve with either a seat or ball that has a V shape.

When you actuate the v port ball valve, the section that will open first is the smallest section of the V.

Hence, providing your process with precise and accurate control of media flowing through the V port.

The media flows through these valves at a considerably higher velocity than other ball valve variations.

They, therefore, have to be constructed from high quality and robust materials.

A standard port ball valve is, on the other hand, a ball valve with a slightly smaller bore compared to the full port ball valve.

The diameter of its bore is significantly smaller in comparison to that of the surrounding piping. Also, they are less expensive yet have good pressure drops than v port ball valves.

They are typically used in applications that require high flow coefficients and other characteristics.

How Do You Select a V Port Ball Valve?


Flow Curves

In any fluid handling application, the valve is usually the most crucial component.

Mainly because it is responsible for fluid flow regulation in the said system, it is undoubtedly an essential component of any piping system.

The system will fail if you use a v port ball valve that is not appropriately sized for the application.

Oversized v port ball valves mean that your process will fail due to poor controlling ability, which in turn may lead to damages.

Undersized v port ball valves will require a significant pressure drop. Or it may be susceptible to cavitation.

To select the proper valve for your application, you should have general knowledge of the piping system components and fluid mechanics.

You may use the following information to guide your selection process:

A general knowledge about the

  • Critical media/fluid pressure
  • Specific media/fluid gravity.
  • A minimum pressure of the inlet.
  • The line size of the piping system.
  • Minimum, normal and maximum flow rates.
  • Outlet Pressure or pressure drop.
  • Temperature.
What Is the Flow Coefficient of a V Port Ball Valve?

Flow coefficient refers to the capacity of a valve to control gas or liquids flowing through it.

It is also known as the Cv value.

Its technical definition is:

The volume of fluid at 60° F that flows through the v port ball valve each minute with a one psi pressure drop across the valve.

The larger the bore in the v port ball valve, the larger its flow coefficient will be.

As it opens, the flow coefficient increases.

The flow coefficient is said to be 100% when the v port ball valve is in the open position.

What Are the Available Size Options for V Port Ball Valves?

V port ball valves come in the following sizes, i.e., from ½ inch to 36 inches.

Usually, the size range of V-port ball valves designed with floating balls ranges from 1/2 inch to 10 inches.

The size of a V-port ball valve with a fixed ball structure is limited by the processing and manufacturing capabilities of the supplier’s equipment.

Do V Port Ball Valves Come with A Warranty?

Yes, V port ball valves come with a warranty, though limited.

The warranty applies to products manufactured by our company to assure you, the buyer, of our confidence in product quality.

The warranty posits that a v port ball valve purchased from us, or our authorized reseller is free from any defects whatsoever.

This assures peak quality and top form materials that, when used in the recommended conditions, will not fail.

Your purchase may carry additional warranties for parts of assembly not purchased from us.

What Are the Available End Connection Types for V Port Ball Valves?

There are multiple types of end connections that you can use to install process equipment and valves to the piping systems.

Every type of connection has its unique advantages and disadvantages despite performing the same function.

Your selection depends on a variety of parameters, among them:

The expected workload/ performance of the v port ball valve.

  • The required level of ease of v port ball valve installation.
  • Leakage prevention.
  • Overall system pressure or pressure rating.

The first of the bunch is threaded connections.

They are the most popular and will provide a streamlined and compact connection between the pipe and the v port ball valve.

The pipes male threaded connections will fit into the v port ball valve’s female threads.

For such connections to be useful, they have to conform to specific quality standards.

For example, the pipe and the v port ball valve have to be created by the same standards to ensure proper connection.

Secondly, socket welds and butt welds can cut it as V port ball valve end connections.

Valves with this type of connection have a socket inside them. This socket is larger than the piping, but only by a little margin.

The pipe is welded into the socket.

This type of end connection is best suited for v port ball valves that are below 2 inches in size. They are leakage free and permanent.

Also, the third type of end connection for V port ball valves is the flanged end.

This type has tiny bolt holes that you can match to the pipe flanges.

These types of end connections make maintenance procedures, e.g., replacement of parts and removal, simple and easy.

Be sure to use gaskets at the point where the flanges mate.

The final type of end connection for v port ball valves is pushed to connect end connections.

These are commonly used in commercial, industrial plumbing applications.

They are innovative and allow for easy a quick connection of the v port ball valve to the piping system.

They have an O-ring that will stretch and hold the pipe in place once it is inserted.

What Are the V Port Configurations Available for V Port Ball Valves?

There are multiple configurations for v port ball valves to accommodate various conditions, purposes and applications.

These configurations vary depending on:

  • Materials, i.e., non-metal or metal
  • Temperature and pressure conditions
  • Fluid type, i.e., corrosive, toxic or gas and liquid
  • Uses.

At Kinvalve, we have a range of V port ball valves for your unique applications and requirements.

Contact us today for all your V port ball valves.

Send Inquiry Now
Scroll to Top