Kinvalve Mini Ball Valve
Mini Ball Valves (or miniature ball valves) are available in stainless steel 316, 304 and other alloy steels with a pressure rating 1000PSI WOG. This full stainless steel construction provides extra strength and corrosion resistance.

Your Reliable Mini Ball Valve Manufacturer

  • Compact small body, best pricing
  • Full range of connections optional, male x male, female x female, male x female
  • Each individually tested and blowout proof stem for maximum safety
  • 1-mini-ball-valve-workshop
  • 2-mini-ball-valve-material-inspection
mini ball valve

Miniature Ball Valves develop reliable shutoff and long cycling time in the compact construction. Available in the instrument, gas lines, high-pressure gauges, and hydraulic or pneumatic pipeline in equipment matching. This mini ball valve stands out from the rest with a polished chrome finish.

Key Benefits:

  • Size: Available in 1/4”- 1”
  • Body – SS 316 (CF8M) or SS 304(CF8)
  • Ball – SS 316 (CF8M) or SS 304(CF8)
  • Bonnet – SS 316 (CF8M) or SS 304(CF8)
  • Ball Seat – RPTFE
  • Valve Stem – SS 304/ SS 316
  • Nut – SS 304
  • Lever Handle – Aluminum Alloy
  • O-Ring – NBR/Viton
  • Working on pressure of 1,000 PSI (WOG)

Kinvalve: Your Best Pricing Mini Ball valve Manufacturer

Kinvalve mini ball valves are widely used in your applications where reliable tightness with a high-pressure rating and less space occupied is required. At Kinvalve, the mini ball valve is also known as the miniature ball valve. Our mini ball valve is a type of small ball valve.


Our miniature ball valves, threaded ends, feature a full range of installation with the choices of female to female, male to female or male to male process connections.

Kinvalve stainless steel mini ball valves feature a double valve seat and stem seal providing you bidirectional use and bubble-tight shutoff.

And the one-piece body design offers you less leaking path and robust structure. You also can choose from our variety of seat and seal materials to adapt to your specific requirements.

All above together with the corrosive resistant full stainless steel construction design make our stainless steel mini ball valves perfectly use in a wide range of applications.


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Your One-Stop solution on Mini Ball Valve

As a professional mini ball valve manufacturer, Kinvalve owns the full capacity on stainless steel mini ball valves to extend the use in your applications.

One of the biggest advantages of our stainless steel mini ball valve is that small size features more. At such pricing, it covers a wide range of your usage.

You can’t imagine that how our unique design and manufacturing capability are reflected on a small mini ball valve.

With the improvement of stainless steel manufacturing technology and the reduction of stainless steel price, our stainless steel mini ball valve is more and more popular.

Now, there is another reason for you to decide to select stainless steel mini ball valves widely. As you know, Lead-free legislation has been implemented in many countries and regions in the world.

This factor leads to the price rise of lead-free brass mini ball valves, so the price factor that hindered you to choose a stainless steel ball valve is no longer a problem for you.

As a result, stainless steel mini ball valves are used to replace brass mini ball valves in some applications where brass mini ball valves are preferred.

Actually, Kinvalve stainless steel mini ball valves do a greater job than brass mini ball valves. First of all, our stainless steel mini ball valves are much more corrosion-resistant than brass mini ball valves.

This is an important thing you need to consider seriously; especially when you need mini ball valves. Because the small bore of the mini ball valve will be easily blocked when it becomes corrosive.

And the corrosive media also affect its internal components including the ball and the stem. This will make a nonstainless steel mini ball valve fail to reliable shutoff.

Full stainless steel configuration characteristic ensures our stainless steel mini ball valves not only use in gas, oil and water systems but also chemical, petroleum, seawater or brewing systems and other harsh environments.

Second, Kinvalve stainless steel mini ball valves exhibit high tensile strength and hardness, which make them difficult to damage, and are highly resistant to extreme temperature and pressure.

Generally speaking, stainless steel mini ball valve can withstand higher pressure than brass mini ball valve.

For example, standard stainless steel and a standard brass mini ball valve for your option, if you decide a brass mini ball valve, you can use it for 200PSI applications, but the same size stainless steel mini ball valve is suitable for 1000PSI service.

Higher-pressure ratings and high temperature provide you better durability and longer service life, which helps you get lower full-cycle cost.

With so many benefits built into a so small design, providing you with cost efficiency and less space required. Buy it now!

Mini Ball Valve: The Complete FAQ Guide

I know you’re looking for high-quality mini ball valves.

Or, you would like to learn more about mini ball valves.

In this guide, you will find all information about mini ball valves such as design, specification, surface finishing and features, amongst other critical aspects.

So, if you want to be an expert, read this guide.

What is a Mini Ball Valve?

Mini ball valve

Mini ball valve

This refers to a quarter-turn ball valve used for shutting off application in different types of pipework.

It has a handle, which can rotate at 90° to open or close the valve.

A mini ball valve is a threaded end mechanical device where one side is a male thread, and another side is a female thread.

This type of valve is suitable for relatively confined and small spaces, where larger ball valves are not necessary.

It is also ideal for residential and somewhat light commercial applications in domestic pipework systems.

Moreover, it is available in various designs and sizes, giving you broad options when looking for a specific type.

What are the Uses of Mini Ball Valve?

The primary function of a mini ball valve is to control flow of different substances, including air, water, and oil, among others.

However, this type of ball is also commonly used for controlling flow and pressure control in gas distribution systems.

It is also used for reducing pressure in connection with gas storage.

In a nutshell, the primary ball valve is to direct, guide, control, and modulate different media flow.

Therefore, the device allows you to figure out the rate or volume of flow your project requires.

It attains this by partially or entirely closing the different passageways.

How do you tell if a Mini Ball Valve is Opened or Closed?

Opened and closed mini ball valve

Opened and closed mini ball valve

It is quite easy to determine whether the mini ball valve is opened or closed.

All you need is to look at the handle’s position.

If the mini ball valve‘s handle is parallel to the valve or pipe, it is open.

And when the lever is perpendicular to the valve, then it is closed.

It is as simple as such.

What are the Advantages of Mini Ball Valves?

Mini ball valves are advantageous in several ways, making it a worthwhile investment for your various applications.

Some of the benefits of this device include the following;

1) Compact Size

The compact size of mini ball valve is advantageous since it allows you to use it conveniently in confined or small spaces.

Notably, there are specific pipework projects, which do not necessarily require larger ball valves.

Thus these types become suitable for such applications.

2) Lightweight

Typically, mini ball valves tend to be comparatively lightweight.

And this is advantageous because it makes it easy for you to install it conveniently in various applications.

Furthermore, this makes it easy to carry it around, thus enhancing the portability of the device.

3) Versatile

Most mini ball valve designs are multi-purpose.

This means you can use it in different types of applications and still attain desirable results.

In other words, the mini ball valve’s design suits numerous applications surrounding flow control and shut off.

4) Durable

The design construction of this mechanical device makes it easy to endure different environmental and mechanical conditions it is exposed to.

In general, this enables it to last for relatively long compared to other types of valves.

The advantage, in this case, is that it allows you to save a considerable amount of money related to repair, maintenance, and replacements.

5) User-friendly

It is quite easy to use a mini ball valve in the respective applications.

This unit comes with a handle or lever, which only require a quarter turn to open and the reverse to close.

This is quite easy since it guarantees a fast shut-off mechanism and ultimate desired results.

6) Affordable

Mini ball valves are generally affordable.

This is advantageous since it implies you can purchase them easily, irrespective of the quantity you need for your project.

Does a Mini Ball Valve have a Flow Direction?

Not necessarily.

Technically, mini ball valves are not directional.

If you check at the interior parts of this unit, you’ll notice its guts are symmetrical.

In other words, the ball valve is round; hence the flow direction is not necessarily a concern.

Even so, plumbing and engineering convention can lead you to set up the valve handle to point in flow direction.

Therefore, if you must install the mini ball valve in a particular flow direction, ensure it has an arrow cast into the body.

This shows the direction of the flow hence making it easy for you to figure it out when necessary.

What is the Ideal Way to Install a Mini Ball Valve?

The appropriate installation process is dependent on the specific type of mini ball valve.

However, a general process for installing this unit involves the following;

Ostensibly, you need to know that you can install a mini ball valve in any direction since it is bi-directional.

Nevertheless, you must ensure to flush out the pipework to free it from dirt, debris, burs, and cutting residues.

This is a vital step since it prevents the seat of the ball valve from damaging.

Then you’ll need to lift the mini ball valve in position and fix it using a sound pipework fitting practice.

Depending on the type of valve, you can loosen the nuts where applicable and remove the end connectors from valve body.

While at it, ensure you retain the end seals.

The next step is to prepare pipe ends through the nuts and fit the end connectors on the prepared pipe end.

Insert the end seals into the recess in the valve body and connect then connect it to the pipework by tightening the nuts.

For flanged end mini ball valves, fit stub flanges and backing rings to every end of the pipe.

Then bolt the ball valve between flanges using an appropriate gasket between the valve flanges and stub.

Carry out system pressure tests on the installed valve in the open position.

This helps in preventing compression damage to the seats.

Nevertheless, determine whether your application is compatible with possible silicone-based lubricants from the assembly at the factory.

If silicone is unacceptable in your project, ensure you strip and degrease the valve to remove the solvent before use.

What is the Ideal Working Pressure and Temperature for a Mini Ball Valve?

The suitable working pressure and temperature for mini ball valve are dependent on a few factors.

One is the actual material used for manufacturing the device.

Ideally, some materials are relatively stronger than others hence can tolerate higher working pressures and temperatures.

On the other hand, some materials can be somewhat intolerant to high pressure and temperature due to their inherent properties.

Another determining factor is the size of the mini ball valve.

They come with varying diameters, which is essential in figuring out the ideal temperature and working pressure.

Relatively larger diameter ball valves can ensure higher working pressure and temperature compared to smaller diameter valves.

Moreover, the specific media that passes through the device is also a fundamental determinant of these elements

The bottom line is that an appropriate working pressure and temperature of mini ball valve are dependent on a few factors.

However, the average working pressure in most available mini ball valves ranges from 250-1000 psi.

The average temperature for most mini ball valves ranges from -30° F – 325° F.

What are the Components of a Mini Ball Valve?

Parts of mini ball valve

Mini ball valve

Mini ball valves are available in different designs and sizes.

Nevertheless, most of them share some core components such as the following;

  • Valve body
  • Seat
  • Actuator
  • Packing
  • Bonnet
  • Stem

What is the Working Principle of a Mini Ball Valve?

Mini ball valves are manufactured from different materials, but the working principle is more or less similar.

Ideally, this type of valve contains a rotary ball and a bore at the center.

It is the ball valve that drives lever, thus allowing it to rotate about an axis perpendicular to the flow.

The valve stays open when the ball’s hole is in parallel to the flow.

It also stays closed when it is turned in the reverse direction at the same 90-degree angle by the valve handle.

The seat on the valve flows around the ball’s edge opening, locking the ball in the same position.

And this happens when the ball stays partially open for a while under high-pressure drop conditions across the ball.

So the ball moves across the seats with a wiping motion.

While ina closed position, the mini ball valve traps the media in central cavity.

When you rotate the ball at a quarter turn,the bore can be aligned parallel or perpendicular to the pipework

This makes it possible to open or block the media’s flow, respectively.

Which Industries Benefit from Mini Ball Valves?

Mini ball valves are used across various sectors in industrial and residential settings.

They are vital in enhancing the overall efficiency of the various applications.

Some of the industries benefitting from this mechanical device include the following;

  • Petroleum refining industry
  • Chemical process industry
  • Marine industry
  • Irrigation sector
  • Gas distribution
  • Brewing sector
  • Industrial, commercial and residential plumbing
  • Water treatment industry
  • Transport industry
  • Military

How does Plastic and Metal Mini Ball Valve Bodies compare?

Mini ball valves are manufactured from a variety of materials.

Notably, plastics and metals top the list.

Of course, they all provide a similar function of controlling and shutting off fluid flow in the pipework.

However, there is a slight variance between these two materials regarding several aspects.

Ideally, engineered plastics enable valves to meet specification requirements, which metal does not necessarily have.

On the other hand, metal mini balls have advantages that the plastics cannot essentially match.

Nevertheless, a plastic mini ball valve is comparatively cheap, lightweight, and durable than a metal mini ball valve.

Additionally, it has better resistance to cavitation and corrosion as well as broader chemical compatibility.

On the other hand, metal mini ball valve has lower thermal expansion and better resistance to shock pressure.

Furthermore, it has greater stress resistance, higher burst pressure, and better ability to handle higher temperatures.

The ultimate choice of body valve, whether plastic or metal, is dependent on required pressure ratings and fluid compatibility.

Moreover, determine the specific industry regulations and the design requirements for the ideal mini valve.

Which Materials are used for Manufacturing Mini Ball Valve?

Mini ball valve

Mini ball valve

There are several materials used for making this type of mechanical device.

Some of the commonly preferred materials include the following;

  • Brass
  • Stainless steel
  • Iron
  • Polycarbonate
  • PVC
  • PTFE
  • Iron
  • Chlorinated PVC

How do you Determine the Ideal Mini Ball Valve Size?

In most instances, the process technical requirements of your project are what determine the ideal mini ball valve size.

Nonetheless, there are other elements, which determine the suitable size of this device.

One of the factors is the required media flow rate.

Of course, the larger the bore diameter, the better the flow rate.

It is also an important consideration, particularly if you are specifying a new assembly, including your ball valve.

If the flow rate within your process system is optimized with a 2” hose, you’ll need a 2” ball valve to fit.

However, it is also possible to use relatively small-sized balls in some process settings.

How much Does Mini Ball Valve Cost?

There is no fixed price for purchasing a mini ball valve.

In essence, these units come in various designs and sizes, which determines the exact amount of money for each.

Relatively big-sized mini ball valves are a bit expensive than small-sized valves.

The order quantity is another price determinant of mini ball valve.

Most manufacturers usually offer better discounts on higher quantities compared to lower quantities.

Another factor is the material used for manufacturing the device.

Engineered plastic mini ball valves are seemingly more expensive than ordinary metal ball valves such as brass.

In other words, the higher the quality and grade of the material, the more expensive it is and vice versa.

Also, the specific brand you are purchasing influence the ultimate cost.

Some brands are generally costlier depending on popularity, reliability, and market position.

In a nutshell, the cost of buying a mini ball valve is dependent on various factors, as mentioned above.

How do you Select a Suitable Mini Ball Valve?

Mini ball valve

Mini ball valve

Choosing a suitable mini ball valve is an integral part of attaining desirable results.

There are several aspects you always need to look into when selecting this particular device.

Here are some of the ways you can use to choose the best one for your needs;

· Always Consider your Fluid Type

Fluid or medium can be liquid or gas.

However, you need to figure out the characteristics of the specific fluid.

It is essential in determining compatible valve materials.

Ordinarily, engineered plastics such as PFA and PTFE can endure different harsh conditions and corrosive chemicals.

But for enhanced safety, it would be ideal to consider metal mini ball valves, especially for pressurized gases.

· Determine the Working Pressure and Temperature

Figure out the respective working pressure and temperature of fluid you’re projecting to pass through the mini ball valve.

Technically, metal valves have better tolerance to higher temperatures and working pressure than plastic ball valves.

· Response Time

This is particular when it comes to solenoid mini ball valves.

You need to factor in the response time and the time it takes for the valve to be energized.

Choose a specific valve, which opens or closes normally, depending on its state.

· Maintenance Needs

Always consider the maintenance needs of your mini ball valves.

Some designs are prone to failure and hence require intensive maintenance to enhance reliability.

On the other hand, there are some sturdy designs, which technically can endure different conditions with minimum maintenance needs.

· Application

This is the bottom line you must look into when purchasing an ideal mini ball valve.

Different valves suit various applications depending on several prevailing factors.

Ensure the particular ball valve suits all the specific needs of your project and ultimately guaranteeing the best results.

Are Mini Ball Valves Durable?


The materials and engineering process of manufacturing mini ball valve units guarantee longevity.

Most mini ball valves have simple designs, which is essential in determining its usability.

Moreover, the common materials for manufacturing this unit have excellent shear and tensile strength.

Therefore, these devices are relatively durable and can last for over 10 years under normal conditions.

However, the specific longevity of the mini ball valves is largely dependent on the severity of the conditions it is exposed to.

What are the Causes of Mini Ball Valve Failure?

Mini ball valves often fail due to several reasons.

It could be as a result of mechanical, design, maintenance, or operational issue.

Some of the common causes of failure in this device include the following;

  • Poor handling of the valve when in operation
  • Mini ball valve material incompatibility with fluid
  • Buildup of foreign and abrasive fragments in the pipework
  • Excessive working pressure and temperatures beyond designated parameters
  • Incorrect installation of the mini ball valve
  • Poor maintenance routine on a mini ball valve
  • Low-quality repair of the unit
  • Foreign debris accumulating on the pipework causing actuator failure
  • Improper mini ball valve selection for the specific application

Can you Lubricate Mini Ball Valve?


It is one of the integral elements that help in enhancing performance and durability of the unit.

Ball valve lubrication is essential since it helps in preventing seizure of the device.

When lubricating it, make sure to rotate it to allow the lubricant to get into the valve cavity.

There are several lubricants you can use to apply to these valves.

However, you must ensure that you use the correct and recommended lubricants to attain best results.

What are the Best Maintenance methods for Mini Ball Valve?

Stainless steel mini valve

Stainless steel mini valve

Proper and timely maintenance helps enhance the efficiency, performance, and durability of the mini ball valve.

However, the maintenance routine for this device is also dependent on its design and specific malfunctioning part.

Nonetheless, some of the ideas you can implement when carrying out a maintenance routine for this unit include the following;

  • Always cycle the valve at least once every month, especially if you use it infrequently.
  • Make sure you relieve the system pressure before conducting any form of maintenance
  • Use sound engineering methods and common knowledge when removing the valve from the pipework.
  • Also, ensure you use a key tool to remove the seat carrier
  • If there is a need for replacing any valve component, ensure you disassemble, replace, and re-assemble the body accordingly.

What are the Recommended Quality Control Measures when Manufacturing Mini Ball Valves?

The manufacturing process of mini ball valve is relatively intensive.

It involves several elements, thus ensuring the quality control interventions to ensure you obtain the best results.

Some of these quality measures include the following;

· Material Testing

This involves evaluating and testing material composition before the casting process starts.

Material testing process also includesa comprehensive inspection of the single casting before the manufacturing process starts.

· Regular Inspection

This measure aims at assessing the process frequently.

Every aspect of the manufacturing process is pegged to a respective party.

This helps to trace the quality of the ultimate mini ball valve.

· Cleaning

Cleaning and drying of mini ball valves are carried out using ultrasonic techniques.

This is vital in making the product attractive before packing and shipping.

· Leakage Test

It is a vital quality control measure since leakage can be a safety and performance issue in mini ball valves.

Ideally, leakage testing is a fundamental quality assurance process since it prevents supplying of substandard units.

· ISO Certification Compliance Requirements

Compliance with ISO certification standards is another vital quality measure taken in manufacturing of mini ball valves.

All the units and systems involved in the manufacturing process need to conform to the ISO standards to guarantee quality.

What makes China the Best Place for Buying Mini Ball Valves?

China is arguably the leading country as far as manufacturing of the mini ball valves is concerned.

This is attributed to many factors hence making it the most preferred marketplace for purchasing these units.

Some of the reasons for such popularity include the following;

· High-end Tools and Equipment

Most of the Chinese valve manufacturers have invested heavily in advanced tools and manufacturing equipment.

This helps to enhance production of quality mini ball valves for different applications according to industrial standards.

· Affordable Rates

In China, you are likely to get different types of valves at amazingly affordable rates.

The competition is stiff, and this tends to work in favor of buyers. Suppliers ensure that they offer better discounts appropriately depending on the quantity you are purchasing.

· Flexible MOQ

Most of the Chinese valve manufacturers allow purchase of a different quantity of these units.

You can negotiate to get a few units as possible, depending on your needs.

And this is essential since it assures you of purchasing the valves depending on your preferred quantity irrespective of your budget.

· Quality Products

Buying ball valves from Chinese suppliers guarantees you the ideal quality you need.

The research put in place to ensure the final product meets the required industrial and market standards.

· Faster Production Rate

Chinese manufacturers guarantee a faster turnaround time for producing mini ball valves.

This is imperative because it allows you to get the units within the shortest time possible and enhancing convenience.

· Wide Variety

In China, there are hundreds of manufacturers specializing in producing different types of valves.

This makes it easy for you to find any mini ball valve you could be looking for your particular applications.

The broad variety also makes it easy for you to choose the right ball valve, which meets your demands.

What is Significance of Surface Coating Treatment on Mini Ball Valves?

Surface coating treatment on mini ball valves has numerous advantages such as the following;

  • It helps in enhancing the durability of the device by preventing it from seizure.
  • It prevents the mini ball valve from erosion and corrosion, especially if exposed to relatively harsh conditions.
  • It enhances the appearance of the unit hence making it attractive, particularly in indoor applications.
  • It reduces the repair and maintenance needs hence making use of this unit cost-effective.

How can you Order Mini Ball Valves?

Ordering mini ball valve units is quite easy.

However, the best technique to use depends on what suits you in terms of your demands and convenience.

One way to order these valves is via supplier’s online platform.

Most manufacturers have established their websites where customers can access, review, and order for their preferred units.

This is arguably the most convenient method since you can do this from the comfort of your home or workshop.

Another common method you can use is by physically visiting the manufacturer.

This method is advantageous since you can easily negotiate pricing with the seller.

Moreover, you get to choose from a variety of options available from such stores.

The other method is using a sourcing agent.

And agent understands various aspects surrounding acquiring these products.

It is a faster, convenient, and cost-effective means to use.

However, you must ensure you are dealing with a genuine agent.

How does Mini Ball Valve ½ compare to Mini Ball Valve ¼?

Mini ball valve ½ and ¼ vary on the following grounds;

Size – Mini ball valve ½ has a bigger bore diameter compared to mini ball valve ¼

Technically, the former is twice bigger than the latter.

Working pressure – Mini ball valve ½ withstands a working pressure of up to 1000 psi. Of course, this results from the bore size, which makes it easy to tolerate such pressure levels.

On the other hand, a mini ball valve ¼ can withstand a working pressure of up to 200 psi, depending on the material.

Working Temperature –Mini ball valve ½ has a working temperature tolerant of between -10° and 150° Centigrade.

However, mini ball vale ¼ has a working temperature tolerance ranging from -5° to 100° Centigrade, depending on the material.

What are the Features of Mini Ball Valve?

The common features of a mini ball valve include the following;

Mini ball valve

Mini ball valve

  • Blow-out proof
  • Excellent chemical and corrosion resistance
  • Lightweight
  • Superior shear and tensile strength
  • Good heat conduction
  • Excellent shock and pressure resistance
  • Superior dimensional stability

Are there any Shortcomings of Mini Ball Valves?

Yes, but a few.

One major shortcoming of mini valve worth noting is that it is prone to trapping water in the center cavity.

This is usually common when the valve is in a closed position.

And in slurry applications, the suspended particles may settle on the valve body, causing valve failure or wear.

Another notable disadvantage of this device is that it is unsuitable for throttling applications.

At Kinvalve, we offer a range of mini ball valves that meet the specific needs of our clients.

Let us help you boost your OEM mini ball valve business.

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