Sanitary ball valves, also called hygienic ball valves are opened by turning handles attached to balls inside the valves.

Adamant valves can supply valve body and disc materials such as AISI 304 or AISI 316L, 304L, and 316 materials according to your requests. This hygienic ball valve is suitable for dairy, food, beer, beverage, pharmaceutical, cosmetics, and other industrial areas.

Adamant valves sanitary ball valves are made of high-quality stainless steel, which can meet the special requirements of various media in the food and biopharmaceutical fields. The smooth, seamless, and automatic emptying of handicrafts is also very suitable for steam cleaning.

How does it work?

Sanitary ball valves can be opened by turning handles attached to balls inside the valves. The valve body is a ball, the ball has a hole or port through the middle. When the port is in line with both ends of the valve, the flow will occur.

When the valve is closed, the hole is perpendicular to the ends of the valve, and flow is blocked. A ball valve is durable and suitable to achieve perfect shutoff and flow control purposes even after years of disuse.

What are the types of sanitary ball valves?

Ball valve classification according to the assembly structure, can be divided into three commonly used designs: one-piece, two-piece, and three-piece housings. The difference is how the ball valve is assembled:

One-piece —The valve parts are pressed or welded. The diameter of the ball is slightly smaller than that of the pipe. The valves can not be opened for cleaning or maintenance.

Two-piece — Two-piece ball valve is composed of two parts, the sealing effect is better than a one-piece ball valve, the diameter of the ball and pipe diameter of the same, and the one-piece ball valve is easy to remove. Usually, the parts are connected via a threaded connection. The valve must be completely removed from the pipe in order to separate the two parts.

Three-piece — Three-piece ball valve is composed of three parts, a valve cover, and an intermediate valve body, the parts are generally clamped together by bolt connections, and it is easy to remove and maintain.

Ball valve classification is according to the hole of the ball, such as reduced bore, full bore, and V-shaped.

Reduced bore — Most ball valves have a reduced bore. One-piece ball valves are almost always reduced bore.

Full bore — Full bore valves have the same bore diameter as the pipe. The advantage is that there is no additional friction loss and the system is mechanically easier to clean. The disadvantage is that the ball and the housing are bigger than a standard ball valve with a reduced bore.

V-shaped — The hole in the ball or the valve seat has a “V” shaped profile, the required flow can be controlled more precisely by rotating the ball.

The post What is a Sanitary Ball Valve and How Does it Work？ appeared first on Adamant Valves.

For this wine, the process begins during the 4-week fermentation process where each tank of grapes is tasted twice a day. When this process comes to a close, samples are drawn from each tank and evaluated to decide if they are “blend worthy”.

Once the lots are selected, the wines are blended together in upright, 6,000-gallon oak crests. With these blends being drawn from as many as 30 different lots, it is critical to have the most reliable wine manufacturing process in place. For these reasons, the Three-Way Sanitary Ball Valve was chosen.

Adamant’s Three-Way Sanitary Ball Valves meet health and safety requirements for industries that require thorough cleanliness and the absence of contamination. This food-grade valve provides flow control for raw ingredients as well as finished products, making it ideal for the meticulous wine blending process. Adamant’s unique Three-Way Sanitary Ball Valve features a direct mount actuator pad and high cycle stem seal design, making it suitable for a wide range of process applications.

If you would like to learn more about Adamant’s Sanitary Valve options, please reach out to our sales team for assistance.

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Adamant sanitary provides sanitary 3-way ball valves with full bore or reduced bore design, in stainless steel 304 or 316L with different connection end.

Stainless steel sanitary 3-way ball valves are used in a wide variety of high-pressure applications.

The sanitary ball valve is compact and simple in design, and easy to maintain, with a full diameter from 1/2″ to 4″, and meet the stringent requirement of high-purity sanitary industries of Food, Brewery, Beverage, Dairy, Pharmaceutical, Biopharma, etc.

A full, unrestricted flow allows no product restrictions through the valve, allowing easy diversion. We offer three-way ball valves made of T316 (CF8M) stainless steel with PTFE seats that are easily removed.

Clamp and weld ends are standard. Other connections are available upon request. Ball valves meet 3A requirements. L-Port is standard, but T-Port is available upon request.

Stainless steel sanitary 3-way ball valves are used in a wide variety of high-pressure applications. A full, unrestricted flow allows no product restrictions through the valve, allowing easy diversion.

We offer three-way ball valves made of T316 (CF8M) stainless steel with PTFE seats that are easily removed. Clamp and weld ends are standard. Other connections are available upon request. Ball valves meet 3A requirements. L-Port is standard, but T-Port is available upon request.

The post What is a 3 Way Sanitary Ball Valve Used for? appeared first on Adamant Valves.

The ball valve is mainly used in pipelines to cut off, distribute and change the direction of media flow, and designed as a V-shaped opening ball valve also has a good flow regulation function.

Which ball valve is best?

One of the answers is Sanitary 3-way Ball Valves.

The main characteristics of Sanitary Ball Valves are its own compact structure, reliable sealing, simple structure, sealing surface and the spherical surface is often in a closed state, not easy to be eroded by the medium, easy to operate and maintain, suitable for water, beer, pharmaceuticals, and other sanitary working media, widely used in various industries.

Sanitary Ball Valve is a sphere, it is the ball around the center line of the valve body for rotation to achieve opening, or closing a valve. The pipeline is mainly used to cut off, distribute and change the flow direction of the medium.

Why are sanitary ball valves better?

1, small fluid resistance, the full diameter of the ball valve basically no flow resistance.
2, simple structure, small size, and lightweight.
3, good sealing, in a wide range of pressure and temperature, can achieve a complete seal.
4, easy to operate, can achieve rapid opening and closing, can be used in the automatic control system, easy to control from a distance.
5、The valve body is symmetrical and can well withstand the pressure from the pipeline.
6, easy to maintain, the ball valve structure is simple, the seal is generally movable, and easy to disassemble and replace.
7, long service life, in fully open and fully closed, the ball and seat sealing surface is isolated from the medium, so the high speed through the valve medium will not cause erosion of the sealing surface.

What are the specification sizes of sanitary Ball valves?

1、Nominal pressure or pressure level: PN1.0-32.0MPa, ANSICLASS150-900, JIS10-20K.

2、Nominal diameter or caliber: DN6～900, NPS1/4～36.

How do I know what size sanitary ball valve I need?

The larger the size of the bore, the better the flow rate so this is a good place to begin, especially if you are specifying a new assembly that will include your sanitary ball valve. If the rate of flow within your process system is optimized with a 2” hose then it is likely that you will require a 2” sanitary ball valve to suit.

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Definition

A valve is defined as “The generic name of a device with a moving part allowing it to open and close a passageway to allow, prevent or regulate the flow of a fluid.”

Valve Categories

There exist many types of valves in various technical industries. The most commonly used manual valves in steam systems and sanitary systems are globe valves, ball valves, slide valves, and butterfly valves.

Valves can be categorized as follows based on their construction and features:

• Ball valve or Butterfly valve – The valve element ‘swivels’ in the flow path to stop the flow.
• Globe valve – The valve element acts as a seal or plug in the passageway to stop the flow.
• Gate valve – The valve element is ‘inserted’ into the flow path to stop the flow.
• Diaphragm valve – The passageway itself is ‘throttled from the outside’ to stop a flow.

The construction of a gate valve is similar to that of a sluice. Another essential characteristic of this type of valve is the low-pressure loss when the valve is fully open. The valve body, however, must be lifted entirely out of the way for the valve to be fully open. This means that the lever must be turned frequently. Low-pressure loss is also present in this valve type because of the face-to-face dimension of a butterfly-type valve that is often tiny. These valves are often used in water and air applications.

Let’s take a closer look at ball valves and globe valves, two types of valves often used in steam systems.

Ball Valves

This type of valve features a polished ball with a hole in the center that rotates in the valve body. When the hole is aligned with the pipe, materials can flow through it. However, the ball cuts the flow when turned at right angles to the line. Because of their short actuation travel, motorized ball valves belong to a family of products called quarter-turn valves. This makes them very fast to operate and ideal for fast response cuts. The ball valves also offer exceptional shut-off values, the average arrangement of the balls ensuring a perfect seal.

Ball valves offer a very good shut-off and are practical because to open and close the valve; it is enough to turn the lever by 90°C. In addition, they can be a full bore, which means that the opening of the valve is the same size as the inside of the pipe. This generates a very low-pressure loss. Another feature is the lower likelihood of gasket leakage. This results from the valve stem only having to turn 90°C.

It should be noted, however, that this valve is intended for use only when it is fully opened or fully closed. It is not suitable for use in a partially open position for any application, including flow control. Thus, it is not ideal for use in a partially open position for any application, including flow control.

Globe Valves

The globe valve is suitable for various applications, from flow control to zero flow.

When the valve is tight against the valve seat, the valve is closed. This type of valve opens when it is moved away from the valve seat. So, flow regulation is not by the degree of opening of the valve seat but by the valve lift (distance between the valve and the seat). A feature of this type of valve is that, even if used in the partially open position, there is little risk of the fluid damaging the valve seat. The kind of globe valve mainly used for flow control is the needle valve.

It should be noted, however, that due to the S-shape of the passageway of this valve, the pressure drop is more significant than that observed with other types of valves. Also, the valve stem must be turned frequently to open and close the valve. Consequently, the gasket tends to leak. Also, because closing the valve involves turning the valve stem until it is seated firmly against the valve seat, it is difficult to determine the exact point at which the valve is fully closed. Cases have occurred where overturning the valve stem by accident has damaged the seating surfaces.

Pneumatic Ball Valves

Pneumatic valves, also known as pneumatically actuated angle seat valves or externally piloted valves, are an excellent choice when a conventional solenoid valve just won’t do.

Such a valve is a good troubleshooting solution for troublesome situations; it allows very high flow rates, can start operating from 0 differential pressure, and enable high temperatures of fluid. It can also perform to flow high viscosity and contaminated fluids. Moreover, it works in EEx zones simply by placing the pilot valve outside of this area. The valve is usually paired with a pneumatic actuator powered by a 3-way valve solenoid. Pilot fluid pressure flows into the actuator cylinder and acts on the piston, allowing the seal to open or close through the stem. The seal returns to its resting position using a return spring which is located in the pneumatic actuator.

Note that a ball valve is not pneumatic in and of itself. When someone refers to a “pneumatic ball valve,” they are referring to the commonly used ball valve that is fitted with a pneumatic actuator. The actuator is typically mounted to an industry-standard (ISO 5211) 4-bolt mounting pad on valves designed for automation.

Applications for pneumatic valves

A Pneumatic ball valve can be used in many applications:

• Cooling.
• Pre-Heating.
• Sterilizers and Autoclaves.
• High-Pressure Lubrication.
• Distributing Steam.
• Bottling.
• Textile Production Equipment.
• Industrial Steam Ironing Equipment.
• Mixture of Paints, Inks, and Colors.
• Industrial Washing and Cleaning Equipment.

Other applications of pneumatic valves

Pneumatic valves are used in the development of automation or remote-control systems. As such, they are found in all industry sectors, machine tools, chemicals, petrochemicals, medical, pharmaceuticals, food, transport, etc.

They can also be applied to communities: hot water, air or steam heating, air conditioning, transport of liquid or gaseous fuels, and fire-fighting.

The post In Which Fields are Pneumatic Ball Valves Mainly Used and What are the Main Features? appeared first on Adamant Valves.

Three-way ball valves made of stainless steel have impressive properties. They’re resistant to corrosion, are not affected by high temperature, and are well suited for specific industrial applications when a ball valve is not fit. Three-way ball valves have a unique design to make the flow of fluids run from the center port to either side. When looking to get quality stainless steel three-way ball valves, one of the things to consider is the type of valve you need.

Types of Three-way Port Valves

Full Port Ball Valves: This valve allows a full flow of fluids and is mainly used on hard piping systems. They have their dimensions very similar to a hard pipe.

Standard Port Ball Valves: The standard port ball valve is also suitable for piping but is mainly used with a hose because it does not restrict flow. The standard port ball valves have the exact internal dimensions as the corresponding host size.

What are the Properties of Stainless Steel?

Steel is an alloy of iron and other metals. It has a very high resistance to heat and corrosion. Stainless steel is a class of steel comprising chromium content as high as 10.5%. Stainless steels have higher corrosion resistance when compared to other steels. Stainless steel comprises iron, carbon, and chromium with other alloying elements. Stainless steel may contain alloys such as nickel, magnesium, molybdenum, and nitrogen.

There are different properties of stainless steel that make it an excellent choice for a wide range of industrial applications. The chromium content of stainless steel makes it highly resistant to corrosion, making it ideal for manufacturing parts and components where purity is required.

Also, the chromium content accounts for stainless steel’s high strength and durability.

Manufacturers require stainless steel to make different machine components because of its high heat resistance, increased formability, and easy fabrication. Stainless steels are long-lasting, they have an attractive appearance, they are environmentally friendly, and they are easily recyclable. Stainless steels do not require constant maintenance, and they do not need coating or painting.

How Can I Get Quality Stainless Steel Bulb Valves?

Several manufacturers produce quality ball valves today. A good choice is Adamant Valves. One thing to look out for when purchasing valves is the specifications for each application. At Adamant Valves we provide different Sanitary ball valves. Our AV-2 series sanitary ball valves are made of high-quality stainless steel suitable for various applications in the food and biopharmaceutical fields.

Our AV-2 series sanitary ball valves are suitable for different industrial use as they have an easily removable connection, a simple structural design, and are easy to maintain. Our AV-2 series ball valve rubber seals and valve plates are very high quality to guarantee long-lasting performance and service life.

Ball valves control flow through the use of a ball; this is done by closing or opening the ball. The valve is opened completely by just a quarter-turn of the ball valve handle. The ball has a hole at the center, allowing flow when it is open and stopping the flow when the ball is closed at 90 degrees. You can regulate the flow of gas/liquid by opening the ball partially. Using the ball valve makes it easy to tell when the valve is opened or closed.

Applications of Stainless-Steel Ball valves

The ball valves are inexpensive but very durable. They are used in systems requiring good sealing to avoid leakages of fluids. The ball valve is used in specific industries due to its reliability and airtightness when appropriately closed. Ball valves are typically used in oil and gas, agriculture, manufacturing, mining, heating, cooling, and construction industries.

Stainless steel balls are used in a system where the purity of the fluid is of utmost importance. They are popularly utilized since stainless steel does not corrode and contaminate the fluid. They have different applications in petroleum refining, brewing systems, and seawater environments.

Final thoughts

The quality of stainless-steel ball valves depends on the grade of steel used in making it. Three-way ball valves have two kinds of flow passage patterns, and each is dependent on the choice of application. These are Type L (3-way and 2-port) and Type T (3-way and 3-port).

Looking for high-quality stainless steel ball valves? Look no further. You can visit Adamant valves to get the best sanitary valves, including stainless steel ball valves, butterfly valves, shut off and invert, check and diaphragm valves for different applications. You can quickly contact any of our experts to help you get a suitable valve for your system by calling us at (949) 407 8897.

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Ball valves and needle valves are very popular control valves. Although each has a different control mechanism, they are both used for controlling flow. This article will explain the main differences between ball and needle valves and the advantages and disadvantages of using each.

What are Ball Valves?

Ball valves are on-off valves. This kind of valve controls flow through the use of a ball; this is done by closing or opening the ball. The valve is opened completely by just a quarter-turn of the ball valve handle. The ball has a hole at the center, allowing flow when it is open and stopping the flow when the ball is closed at 90 degrees. You can regulate the flow of gas/liquid by opening the ball partially. Using the ball valve makes it easy to tell when the valve is opened or closed.

What are Needle Valves?

A needle valve is a simple control instrument used in a process system that has the on-off feature and controls fluid flow. The needle valve is quite similar to the ball valve, in that it has an on-off feature. However, it can regulate flow through different ways and settings. The needle valve has a needle-shaped plunger that blocks the path of a flow through the valve. It has a rotating stem adjustment mechanism that allows easy plunger positioning control. The plunger can move up and down to enable half-open, barely open, or fully open positionings. Needle valves have better precision for controlling flow due to their easy adjustability.

Application of Ball Valves

The ball valves are inexpensive but very durable. They are used in systems requiring good sealing to avoid leakages of fluids. The ball valve is used in specific industries due to its reliability and airtightness when appropriately closed. Ball valves are typically used in oil & gas, agriculture, manufacturing, mining, heating, cooling, and construction.

Stainless steel balls are used in a system where the purity of the fluid is of utmost importance. They are popularly utilized since stainless steel does not corrode and cannot contaminate the fluid. They have different applications in petroleum refining, brewing systems, and seawater environments.

Advantages of Using the Ball Valve

• They are not expensive and are still quite durable
• Provides low-pressure drop when open
• The valves do not need much maintenance
• They are also very easy to clean

Disadvantages of Using Ball Valves

• Ball valves are not ideal for flow control requiring high precision control and adjustment
• Abrasion of the ball’s surface may occur due to its collision with fluid particles, leading to leakages

Application of Needle Valve

A needle valve provides high precision and good accuracy of control. A needle valve is applicable in vacuum systems and metering systems due to the need for high precision in these systems. The needle valve is also used in sample lines, fluid power systems, and automatic combustion control systems. Needle valves are not applicable in systems that require rapid changes in the valve’s state.

Advantages f Using Needle Valves

• They allow for ease of adjustability
• Provides more precision in controlling the flow of fluids
• There is usually a high-pressure drop when a needle valve is opened. This allows for efficient flow and less restriction in the processing system
• The needle valve is neither affected by hot or cold temperatures
• They can be quickly shut off with finger-tight pressure

Disadvantages of Using Needle Valves

A needle valve is not suitable for high flow processes

Although it provides increased precision adjustment, it isn’t easy to adjust rapidly

The needle valve is not suitable for high flow processes

It is usually challenging to know if the valve is open or closed during use

Buy top-quality sanitary valves at affordable prices

Looking for high-quality valves? Visit Adamant valves to get the best sanitary valves, including stainless steel ball valves, butterfly valves, shut off and invert, check and diaphragm valves for different applications. You can quickly contact any of our experts to help you get a suitable valve for your system by calling us at (949) 407 8897.

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When it comes to choosing isolation or flow control valves that best suit your application, the two most common options that you can choose from are gate valves and ball valves. Both are essentially the same in functionality, but they are markedly different when you compare their structural qualities.

If you’re wondering which option is right for you between gate valves and stainless steel ball valves, worry no more. In this post, we’ll highlight the main features of these valves, then explain how each of them can serve you.

What are Gate Valves?

Gate valves consist of a closure element that is connected to the stem of the valve. The closure element is a solid disk component that serves as the gate moving up and down to start or stop the flow of liquid or gas.

To open the valve, the gate is lifted, typically by rotating it, and to close the valve, it is returned down to its initial position. On top of the valve is a bonnet or handwheel, which, when rotated, opens or closes the gate. This valve turns typically more than 360° to fully open or close valve.

Gate valves are sturdy and durable. You’ll typically find them used in high pressure and high-temperature applications, which is one of the reasons they can prevent pressure drops in a system. They are used extensively in pharmaceuticals, manufacturing, the automobile industry, and oil and gas applications.

What are ball valves?

A ball valve is a flow control device that uses a hollow, perforated, and pivoting ball to either stop or allows the flow of materials. By turning through 90°, the handle of the valve turns the hollow, rotary ball, which then restricts or allows the flow of fluid. Unlike the multi-turn gate valves, ball valves are quarter-turn valves by design. This is because they can only turn up to 90°, which is enough to open or close the valve fully.

When the handle is turned to a position parallel to the pipe, it is open. When it stands perpendicular to the pipe or flow of material, it is closed (i.e. the bore of the valve aligns with the pipe to allow materials to flow through).

Compared to gate valves, ball valves have a simple design, and you can easily or quickly turn them on or off. They hardly freeze, and as the gate valves, they are equally durable and reliable – and are used in oil and gas settings, manufacturing companies, and marine applications.

Ball valves are mostly available as stainless steel ball valves, such as the 3-piece, unibody, split-body, and 2-Piece stainless steel ball valves. However, the 2-piece stainless steel ball valve is about the most widely used ball valve.

Ball valves vs gate valves: differences

As explained above, the main difference between ball valves and gate valves lies in their structural qualities and how they are marked. While both valve types are commonly used in residential and industrial applications, this structure difference helps inform the applications in which each of these valve types is most suitable.

1. Structure: A gate valve opens and closes by sliding a solid enclosure element up and down to allow or restrict the flow of fluid. Ball valves, on the other hand, have a stem and a ball with a bore that turns horizontally through 90 degrees to open or close the valve.

2. Ports: The ports of a valve are also known as its inlets and outlets. Gate valves, on the one hand, are bi-directional, meaning that they typically come with just two ports. Depending on the application and type of hate valve, the ports of a gate valve can be threaded, soldered, or flanged.

Ball valves, on the other hand, can have two or more ports. Likewise, the ports can be threaded, soldered, or flanged depending on the type and application of the valve. In most cases, stainless steel ball valves with three ports are used for mixing and diverting material flow in pipes.

3. Speed of opening and closing: Ball valves only need to turn 90 degrees to close or open. Therefore they are better suited for emergencies or applications that require fast opening and closing speed. Gate valves need to go more than 360 degrees to fully open or close, meaning that they operate slower and cannot be applied in emergencies.

However, keep in mind that if you want to prevent or reduce the risk of water hammering, you should go for gate valves, which typically open and close slowly.

4. Cost: Bulb valves are normally more expensive than gate valves of similar specifications, but since stainless steel bulb valves are more durable and require less maintenance, they may prove to be a more economical option in the long run.

5. Installation space: Bulb valves require more space than gate valves to accommodate a quarter-turn handle, while gate valves need smaller installation space than a ball valve.

Common applications

Shut-offs: Gate valves are generally suitable for applications that do not require frequent shutoffs, such as older plumbing systems and large water supply lines because gate valves have straight flow paths and fewer flow restrictions. Ball valves are used more in systems that require frequent shut-off requirements, such as new plumbing systems.

Ease of cleaning: Since gate valves are easier to clean, they are suitable in applications with slurries and viscous media. Ball valves are difficult to clean. Besides, the slurry particles could cause damage to the rotary ball. They are not suitable for food, beverage, and pharmaceutical applications.

Gate valves are used in power plants, mining, and water treatment applications, while ball valves are best for fire protection systems and marine applications.

You can get high-quality sanitary valves at affordable prices

At Adamant Valves, we provide you with high-quality sanitary valves, including stainless steel ball valve, butterfly, shut off and divert, check, and diaphragm valves for different applications. Feel free to contact us at (949) 407 8897 and have one of our experts help you decide which valve type is best for your needs.

The post Which is Better, Gate Valves or Ball Valves? appeared first on Adamant Valves.

While the valve is closed, the flow is blocked as the hole is perpendicular to the split ends of the valve. Thus the handle and the port come in a single line which lets you see the valve’s position. Therefore the ball valve along with the butterfly valve and plug valve can be used as a part of the family of quarter-turn valves.

In addition to that using a ball valve has its own advantages and disadvantages. The best thing about it while used in sanitary applications is that they usually work to attain perfect shutoff even after years of disuse. These are the best selection for shutoff applications.

Baal valves are and are often preferred over sanitary butt-welded butterfly valves, as the latter do not offer the fine control which is very much useful in throttling applications. Another good thing about ball valves is that they are considered the high-pressure-rated sanitary valves on the market.

As the name says the sanitary ball valves, are associated with a ball with a hole drilled through the middle swivel mounted to the valve body. It operates in full flow while the hole in the ball is oriented in the same direction as the pipe. However, the hole in the ball sometimes if oriented away from the direction of the pipe will cause the flow rate to be restricted and ultimately cut off absolutely when the hole is oriented 90 degrees to the direction of the pipe.

Though the ball valves are produced by different manufacturers, almost all the ball valves share the same operational features. You can get different alternative choices for a ball valve on the market. This makes potential customers switch their choices to any other alternative. However, this is the main reason why manufacturers are very keen on the comfort and convenience of the end-user. They always try to interpret the need and tastes of their potential customers and update the quality of the product accordingly.

The post Why The Sanitary Ball Valves Are Useful? appeared first on Adamant Valves.

The classification of ball valves by structural types are:

1. Floating ball valve

The sphere of the ball valve floats. Under the effect of medium pressure, the sphere can produce a certain displacement and be pressed tight on the sealing surface at the outlet, ensuring the sealing of the outlet.

The floating ball valve has a simple structure and good sealing, but a load of working medium sustained by the sphere is all passed on to the outlet sealing ring. Therefore, one needs to consider if the material of the sealing ring can sustain the working load of the sphere medium. This structure is widely used in medium and low-pressure ball valves.

2. Fixed ball valve

The sphere of the ball valve is fixed and doesn’t move after being pressured. All fixed ball valves have floating valve seats. Under medium pressure, the valve seat moves, pressing the sealing ring tight on the sphere to ensure sealing. Usually, bearings are installed on the upper and lower shafts of the sphere. It has a small operating torque and is suitable for valves of high pressure and large diameter.

In order to reduce the operating torque of the ball valve and to increase the reliability of the sealing, there have been oil sealing ball valves in recent years. Special lubricants are injected between the sealing surfaces to form a layer of oil film, which not only enhances the sealing but also reduces the operating torque. It is more suitable for ball valves of high pressure and large diameter.

3. Elastic ball valve

The sphere of the ball valve is elastic. The sphere and the sealing ring of the valve seat are both made of metals. The sealing pressure is very large. Relying on the pressure of the medium itself already can’t meet the requirements of sealing, so external forces must be applied. This type of valve is suitable for the medium of high temperature and high pressure.

There is an elastic groove at the lower end of the inner wall of the sphere. When closing the channel, use the wedge of the valve stem to keep the sphere ballooned and pressed tight against the valve seat to achieve sealing. Loosen the wedge head before turning the sphere, and the sphere restores its original shape so that there is a very small gap between the sphere and the valve seat, which can reduce the friction of the sealing surface and the operating torque.

Conclusion

According to its channel positions, sanitary ball valve can be divided into straight-through, three-way, and right angle types. Three-way and right-angle ball valves are used to dispense the medium and change the flow direction of the medium.

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