Every industry has a demand for sanitary fittings, but the pharmaceutical industry takes the crown in this race. There is very little margin of error in this industry, as we are talking about medicines. Medicines that cure our headaches, medicines that save our life! As it is evident, the standard sanitary fittings aren’t meant for manufacturing drugs. Hence, there is a need for biopharmaceutical sanitary valves, which we are going to discuss in this brief. Biopharmaceutical fittings (BPE) are a perfect solution to this problem.

The Difference Between Sanitary Valves and Industrial Valves

On the face of it, there seems to be very little difference between biopharmaceutical fittings and 3A sanitary fittings. However, there are some critical differences in the styles of the two fittings that set them apart. The BPE fittings comply with the ASME-BPE standards. It is pertinent to mention it again that sanitary valves play a critical role in the production of pharmaceutical products. Therefore, it is natural that these vales feature high tolerance and clean interior surface finishes. This is in contrast to standard fittings. Furthermore, material requirements are a lot different than 3A sanitary standards. 3A standards are industrial valves that find plenty of uses in industries like food, beverage, and dairy.

What are the Main Types of Sanitary Valves?

Fun fact: It is possible to build sanitary valves with thousands of variations! However, for the sake of convenience, we can classify sanitary valves into three key types. This classification is made on the basis of their mechanical motions. These three classes are linear motion, rotary motion, and quarter-turn valves. Let us talk about them briefly in the following lines of this brief:

1.    Linear Motion Valves

These valves use a closing member. As they move in a straight line, they permit, stop or choke the medium’s flow. You might have come across some types of linear motion valves already. These include gate, diaphragm, pinch, lift check valves and globe valves.

2.     Rotary Motion Valves

In this type of sanitary valve, a valve closure member is used. It is this valve that permits motions on the cylindrical or angled paths. Some of the common types of rotary motion valves include ball, eccentric, swing check, and butterfly valves.

3.    Quarter Turn Valves

In essence, these are just like rotary motion valves. The key point to note here is that these valves require only a quarter-turn stem motion to switch their positions between fully open and fully closed.

An important that must be kept in mind is that a sanitary valve is defined by a set criterion. Unless these special sterile requirements are met, a valve cannot be deemed sanitary.

Let us talk a bit about the sanitary ball valves and butterfly valves in this space as well. Coming towards the sanitary ball valves first, well, they use a ball with a hole that is drilled through the middle swivel mounted to the valve body. The sanitary ball valves operate at their maximum when the ball is in line with the pipe. However, it is quite possible to rotate the hole in the ball away from the pipe’s direction. This chokes the flow rate. It is cut off completely once the hole is at 90 degrees in the pipe direction.

Often, there is a question about the nature of the butterfly valves. Do they have a place in the sanitary club or not? The answer is, yes, of course, they are sanitary valves. They feature a single eccentric structure. Their soft seal is predominantly different from the middle section. Their characteristic features are compactness, lightweight and minimalistic composition.

Who Uses Sanitary Valves and Why?

Now, let us talk a bit about the end users of sanitary valves. Usually, biopharmaceutical sanitary valves are used by folks concerned with the pharmaceutical industry, biotechnological facilities, and certain other purity industries. What makes them suitable for use in these industries? Let us find that out in this section of the discussion!

In medical industries, contamination is the last word you would want to hear. We don’t need to build on why it is a taboo word there, right? Now to the real point, if there are services in the valves, then the chances of contamination increase by a significant factor. So ideally, valves that come without any services sound like a perfect pick for industries that we have mentioned in the earlier lines of this brief, right? Guess what? Sanitary valves come without any services! So that contamination problem is solved alright, what do you think?

Cleaning is cumbersome sometimes. When we are talking about mega industries like the pharmaceutical industry, then we need to pay more attention to streamlining the process. That’s where sanitary valves save the day. Because they are not stained easily, they are a super convenient option. Now you might not realize it at first, but the extensiveness of the process is directly proportional to the amount of cleaning that needs to be done afterward!

Sanitary valve manufacturers in USA are making gold as they are a perfect pick for anyone who is weary of polishing and smoothing valves all the time. Do you know who that is? Pharma boys! Rust is enemy number one in all such settings. It can complicate things to a great extent. Hence, sanitary valves are a perfect pick again because they are made of polished stainless steel.

Standards & Certification

ASME-BPE

ASME has a BPE committee that acts as a governing body for BPE standards. The ASME-BPE standard is concerned with all aspects of BPE fittings. These aspects include tolerances, interior surface finishes, product markings, composition, and packaging. BPE certification implies that ASME has conducted an audit of a company. Companies that hold ASME-BPE certification can proudly flaunt that they are meeting the required standards. Such audits are a must for compliance. Companies who undergo the said audits have permission to label their products with ASME certification marks.

One of the key requirements of ASME-BPE standards is that the BPE fittings must be consistent in terms of dimensions. It doesn’t matter who is producing them; the manufacturer becomes an irrelevant topic in this discussion. Then, these sanitary valves must also come with specific permanent markings on the outside of the fittings. These markings include heat number, material type, company, manufacturing country, surface finish, and the letters BPE inscribed on them.

An important question that arises here is: how is material verification performed in the case of BPE fittings? Well, it is done so by using a niton gun. Thanks to this clever invention, identifying a fitting in terms of its chemical composition is fairly easy. All that it takes is a single click! Performing this identification is extremely important since, without it, one cannot be sure about the materials that the end-users are getting.

Traceability

Traceability is one of the most important factors when we are talking about BPE fittings. It is absolutely essential that the chemical and mechanical make-up of the materials must meet the set criterion. Otherwise, the sanitary valves in question will not be given the due nod of approval. Here, talking about heat numbers is a must; they identify the manufacturing lot of the steel. Normally, heat numbers are marked on the outer side of the sanitary valves. Heat numbers must match up with the corresponding paperwork. This corresponding paperwork is dubbed Materials Test Reports. It serves as proof that the sanitary valves meet the specified standards.

MTR

Let us talk about Material Test Report (MTR) in this domain as well. It is an official piece of documentation from the mill; it specifies the mechanical and chemical properties of the steel. Its importance in material traceability and verification cannot be ignored. The MTR must be provided with every sanitary valve. Sanitary valve suppliers need to take care of these parameters.

Conclusion

So, that would be all from this brief. As it is evident from these lines, the biopharmaceutical sanitary valves have critical importance in medicine and related pharmaceutical industries. Precision and fine finishes are key parameters that distinguish them from their industrial counterparts. To ensure that nothing wrong has happened throughout the process, documentation and packaging have been given due weightage as well. It is these major points that allow users to trace back products to inception. Once the understanding is at the most perceptive level, users can easily pick the sanitary valve that is the requirement of the process.

Today, the industrial web is bigger than ever. It is getting more and more specific with every day passing. Biopharmaceutical industries needed something safer and more efficient to solve their quality woes and concerns. Sanitary valves are the answer, as it seems!

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What are Diaphragm Valves?

Diaphragm valves are bi-directional on-off throttle valves. They control the flow and speed of fluids through an area. Diaphragm valves regulate the area through which fluids enter or exit the system. The name diaphragm comes from a thin and flexible membrane that moves up and down within the valve’s body, causing it to open and close. Diaphragm valves can be made from plastics, single-use materials, and stainless steel. Stainless steel Diaphragm valves are easy to maintain, and they are clean and leak-proof.

How Do Diaphragm Valves Work?

Diaphragm valves are pretty similar to pinch valves in the way they work. The valve has a linear compressor that pushes the thin diaphragm into contact with the valve’s body. When the user decides to shut the valve, the actuator is pressed or turned, pushing the membrane to the edge of the valve, thus closing the valve.

Criteria for Selecting a Diaphragm Valve

You may encounter some problems specifying the correct valve size to use as there are no industry standard diaphragm valves. Below are some parameters you can consider when purchasing a diaphragm valve, so you can make the right choice.

● Valve size: The size of the valve is important since they have different throttling applications. As such, the size of the valve has a way of affecting the control of the fluids. To get the right valve size to use, ensure that the volume of the process fluid moving through the system is known. Hence, it’s important to know the state of the liquid, how it flows, as well as the viscosity and specific gravity of the fluid. Endure to also know the inlet and outlet pressures and temperatures.

● Deciding the Type of Actuator to Use: The actuator type will determine the size of the diaphragm valve you should select. Actuation types include electric motor, thermal, pneumatic, hydraulic, etc. This factor determines how the valve is opened or closed. The type of actuator you use depends on the force of the fluid flow through the system.

Advantages of Using a Diaphragm Valve

1. It serves as an on-off and throttling service valves
2. There is no case of stem leakage when using the diaphragm valve
3. The diaphragm valve provides tight bubble service
4. There are no pockets that trap impurities, slurries, and other solids.
5. Diaphragm valves have suitable linings that are resistant to chemical attacks.

Disadvantages of the Diaphragm Valve

1. Diaphragm valves are not suitable for use where the temperature is below -60 or more than 450 degrees Fahrenheit.
2. It is also not suitable for use in a flow system, where the flow pressure is more than 300psi.
3. Diaphragm valves are not ideal for use in multi-turn operations

Application of Diaphragm Valves

Diaphragm valves are used in different industries because they are cheap, very effective, and made in different sizes and forms. Below are some common places where the diaphragm valve is of importance:
1. Power industry
2. Vacuum services
3. Breweries
4. Corrosive applications
5. Water treatment facilities, and
6. Pharmaceutical manufacturing systems

What Are Butterfly Valves?

A butterfly valve controls fluid flow using a rotating circular plate or two hinged semicircular plates attached to a transverse spindle and mounted on a pipe to prevent or control flow. Butterfly valves are used mainly in places with limited space. They are very easy to operate and they open fast, with just a 90-degree rotation of the handle that will cause the valve’s complete opening or closure.

Advantages of Using Butterfly Valves

1. They are relatively light in weight
2. Butterfly valves work well in small spaces since they have a compact design
3. Have low-pressure drop and high-pressure recovery
4. They are used to provide bubble-tight service

Disadvantages of the Butterfly Valve

1. The butterfly valve leaves residual materials in the pipeline.
2. The flow turbulence affects the movement of the disc.
3. Sometimes, the thickness of the valve may restrict the fluid flow.
4. Thick liquids can sometimes prevent the disc from moving freely.

Application of Butterfly Valve

Some common applications where the butterfly valve offers effective control includes:
1. Vacuum service
2. Slurry and similar services
3. High pressure and high-temperature water and steam services
4. Compressed air or gas applications
5. Cooling water, air, games, and fire protection.

The most significant difference between the butterfly and diaphragm valves is their valve elements. The diaphragm valve uses a thin, flexible membrane, whereas a butterfly valve uses a circular plate that controls fluid flow by closing and opening.
Are you in search of top-quality valves for your system? Visit Adamant valves to get high-quality sanitary valves, including stainless steel diaphragm valves, butterfly valves, pneumatic valves, and electric valves for different flow systems. Feel free to call us today at (949) 407 8897 to reach our experts and get the perfect valve for your system.

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A sanitary valve for powders is widely used in many industries.

A customer of Adamant Valves has a wide range of products, including organic infant formulas, organic follow-on milk, organic milk, organic cereals, allergenic formulas, milk-free infant formulas, dietetic baby food, probiotics, and polyunsaturated fatty acids.

Butterfly Valve for Powders

The drive for innovation has necessitated the requirements of extraordinary accuracy in production and packaging. The company, from a technological point of view, classifies itself somewhere between a dairy and pharmaceutical products and pays the highest attention to the selection of sanitary components for its process.
Sanitary diverter valves and sanitary butterfly valves play an important role in powder conveying.

How to convey powders for sanitary valves in the materials handling industry?

In a typical wet blending/spray drying process for infant formulas and powders, ingredients are blended with water in large batches and then pumped to a heat exchanger for pasteurization. After pasteurization, the liquid is homogenized and the product may be concentrated by passing it through an evaporator or sent directly to the spray dryer.

the product is then atomized in the spray dryer. As droplets of products are fluidized in the dryer, water is evaporated, and then dry powder drops to the bottom of the spray dryer, where it is discharged with a sanitary butterfly valve to a fluidized bed.

As droplets of products are fluidized in the dryer, water is evaporated and then dry powder deposits drop to the bottom of the spray dryer. There the product is typically dried further and cooled. The outlet air from the spray drying chamber still carries product (fines) which is normally ducted into cyclones and bag filters after the spray dryer. From there the product is discharged with sanitary shutoff valves into the fines return line.

The fines can either be transported by conveying pneumatically to the fluidized bed or back to the top of the spray dryer for agglomeration purposes. The actual conveying path is selected by the sanitary valve. After the fluidized bed, the finished powder passes through a sifter and is then pneumatically conveyed to storage silos or packaging lines, where it is deposited into bags or where it is canned.

Moisture and warm temperatures in the wet blending and spray drying process are conducive to bacterial growth. Therefore wet cleaning is normally applied in this process while dry cleaning is often typical in the process after the fluid bed dryer.

What are the features in the design of Adamant sanitary butterfly valves for powders?

It is designed for the delivery of a split open and closed valve by using the principle of compressed air to realize sealing. The valve is the ultra smaller torque and longer life standard than other normal butterfly valves.

What distinguishes sanitary valve components is the gap-free design, especially in critical areas, such as inlet flanges or side cover gaskets. This is very important when the production plants are cleaned wet, in order to prevent product deposits and also humidity residues in gaps.

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The aim of using a butterfly valve is for isolating or regulating the flow of liquid. The closing technique takes the form similar to a disk. All the operation is similar to that of a ball valve, where a quick shut-off is there to regulate the flow. Usually, people prefer butterfly valves as they are inexpensive as compared to other valves due to their lightweight. A butterfly valve needs less support to function.

Here in butterfly valve sanitary, a circular pipe is attached which controls the flow of material through a circular pipe or tube. Usually, the materials for which a butterfly is used are air, gas, steam, or liquid. It can be also be used for certain dry materials.

Butterfly valves are quick opening valves associated with a metal circular disc along with its pivot axes at right angles. It regulates the direction of the flow of the pipe. It works with the mechanism that when it is rotated on a shaft, it seals against seats in the valve body. The butterfly valves are normally used as throttling valves to control flow. The high-performance butterfly valves do not have any pockets where the fluids may get trapped while the valve is closed.

This type of valve is one of the most compact, as well as lightweight valves, that exist on the earth. It has a wide range of applications. This kind of valve is more popular due to the choice of the seat as well as the lining. Moreover, the disc options have significantly enhanced the demand for the same over the latest years making the valve a smart alternative.

Being full of all the favorable qualities like the wide range of materials with desired sizes and pressure ratings offers reliable and positive isolation with moderate flow control potential more than a wide range of applications all the way through the valve industry.

The petrochemical trade and oil industry use this metal seated valve because they are fire safe, lightweight as well as perfectly suitable for actuation. If used for the appropriate application these butterfly valves offer you a great number of advantages. It is suitable for chemical services. The main advantage of the valve is that it can be used where space is less. It is designed to be used with small dimensions.

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The biggest difference between sanitary ball valves and sanitary butterfly valves is that the opening and the closing component of the butterfly valve is a plate, while the opening and closing member of the ball valve is a ball. The valve plate of a butterfly valve and the valve core of the ball valve both rotate around their own axis. The valve plate of the gate valve moves along the axis in lift movement. The butterfly valve can also adjust the flow rate by opening partially, but the ball valve does not have this function.

What is a Butterfly Valve?

The butterfly valve is characterized by a relatively fast opening and closing mechanism and simple, cost-effective construction. However, butterfly valves have relatively poor sealing tightness and low-pressure capacity, both of which limit the valve’s scope of applications. The characteristics of the ball valve are similar to those of the gate valve, but with limitations to the opening diameter due to the restrictions on size and opening/closing resistance.

What is a butterfly valve used for?

The structural mechanism of the butterfly valve makes it particularly suitable for the production of a large diameter valve. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the butterfly valve body cylindrical channel, a disc-shaped butterfly plate rotates around the axis with a rotation angle between 0 and 90 degrees. When it reaches the 90th degree, the valve is in fully open status, and the adjustable range is relatively generous.

What is a ball valve?

Ball valves are named for their closing member, which is a sphere. The sphere rotates around the centerline of the valve body to achieve opening and closing. Ball valves are used in pipelines to shut off, distribute and change the flow direction of the medium.

What is a ball valve used for?

The ball valve is usually suitable for liquids and gases that don’t have particulate impurities. Ball valves operate with a small fluid pressure loss and good sealing performance. In comparison, the ball valve’s sealing tightness is better than that of the butterfly valve. Ball valves seal themselves by pressing the valve seat against the sphere’s surface. Compared with semi-ball valves, the ball valve wears down more quickly.

The butterfly valve’s sealing components are usually made of flexible materials, which are difficult to use in pipelines of high temperature and high pressure. The butterfly valve has rubber sealing components that don’t create as tight of a seal as the hard metal components of ball valves. After a long period of use, a semi-ball valve’s valve seat will have slight wear. We can continue to use it through adjustment. During the opening and closing process, the valve stem only needs to rotate 90 degrees. When there’s a leak, press the bolt on the stuffing lid a little bit tighter to reduce leakage.

How to Use Ball Valves and Butterfly Valves?

During the opening and closing process, the ball valve is operated by the force from the valve seat at both ends. It has a bigger opening and closing torque than the semi-ball valve. The greater the diameter, the more obvious the difference of opening and closing torque is.

The opening and closing of the butterfly valve are achieved by overcoming the deformation of the rubber sealing surface. Its torque is much greater, it takes a long time to operate, and requires much effort to do so.

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It is widely used in food, pharmaceutical, cosmetics, clean steam, alcohol, beverage, biochemical industry, and other occasions. It has the advantages of compact structure, easy assembly, and disassembly.

The main advantages of the pneumatic butterfly valve are simple structure, small size, lightweight, and low cost. This feature of the pneumatic butterfly valve is particularly significant. It is installed in the high-altitude passage, controlled by a two-position five-way solenoid valve that is easy to operate, but also adjustable flow media.

When it is fully open, the sanitary pneumatic butterfly valve has a smaller flow resistance. When it is open between about 15 degrees to 70 degrees, it can be applied for sensitive flow control. In the area of large caliper adjustment, the valve plate is wiped with movement and can therefore be used for media with suspended solids. The strength of the seal can also be used for both powder and granular media.

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Signal butterfly valves are throttling devices suitable for fire protection systems in high-rise buildings and other pipeline systems that need to display the valve switching status. These crucial valves are connected to fire alarm systems and provide convenient control of fire-fighting water supplies during system maintenance.

The Mechanism of Signal Butterfly Valves

How Does a Signal Butterfly Valve Work?

How does the signal butterfly valve control flow?

Signal sanitary butterfly valves achieve opening, closing, and flow control functions by using driving devices like worm gears and worm shafts to drive the rotation of the rotating axis and butterfly plate.

Simply rotate the worm gear and worm shaft’s handwheel to make the butterfly plate open, close, and change flow rate settings. Clockwise rotation of the handwheel closes the signal butterfly valve.

How to Set a Micro-Switch in the Transmission Box

There are two ways to set micro-switch in the transmission box of the worm gear and worm shaft:

1. The transmission box is equipped with two micro-switches that indicate open and closed separately. These two switches operate when the signal butterfly valve is in full open and full closed status, respectively. When the indicated light source of “valve open” and “valve closed” in the control room is connected, the status of the valve will be accurately displayed.
2. The transmission box is equipped with a micro-switch that indicates closed. When the butterfly plate moves from 0 to 40 degrees, the close signal of the valve should output. From 40 to 90-degree positions, the open signal of the valve is output. The protruding wheel of the micro-switch can be adjusted to show the different positions of the butterfly plate.

Where to Install a Signal Butterfly Valve

Signal butterfly valves can generally be installed in two different places: in front of the floor-level main pipe water flow indicator or the main pipe wet alarm valve.

Front of the floor-level main pipe water flow indicator:

In order to maintain the floor spray system: 

1. Close the butterfly valve, open the end to drain, and empty the water from the floor spray sprinkler system. No water is allowed in the sprinkler system. 
2. Close the butterfly valve. It should transmit a signal to the fire alarm system, which should receive a monitoring signal (called the signal butterfly valve) to remind the fire sprinkler system on this floor. If you receive a no water signal, it should be repaired as soon as possible.

Main pipe wet alarm valve:

One is to repair, and the second is to indicate that a signal butterfly valve in the sprinkler system is closed, and it should be repaired as soon as possible.

Conclusion

Thank you for reading our article and we hope it can help you better understand the mechanism of signal butterfly valves. If you want to learn more about butterfly valves, we would like to advise you to visit the Adamant Valves homepage for more information.

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Sanitary butterfly valve is a kind of valve widely used in the field of the sanitary level. The butterfly valve is called not because it looks like a butterfly, but because it is simple and easy to operate. There are many similarities, such as the butterfly is also a small and flexible insect, so this device is called a sanitary butterfly valve.

What are the types of sanitary butterfly valves?

The drive mode of the sanitary butterfly valve is divided into manual, pneumatic, and electric, among which the pneumatic butterfly valve is the terminal element in the process control. Besides the quality of the product itself and the correct installation, use, and maintenance of the user, it is very important to calculate and select the type correctly.

How to select a suitable butterfly valve?

Due to the failure of model selection when purchasing, it is easy to cause the system to start and stop, and some of them cannot even be used. Users and system designers must pay attention to the selection principle of pneumatic and hygienic butterfly valves. The specific principles are as follows.

Users and system designers should be aware of the importance of valves in the field and should pay enough attention to the selection of hygienic butterfly valves. One should choose suitable structural forms and materials according to the technological conditions; the flow characteristic of the pneumatic sanitary butterfly valve should be selected according to the characteristics of the process object; select the appropriate pneumatic hygienic butterfly valve caliber size according to the process operating parameters; select the required auxiliary device according to the requirements of the process, etc.

How Do Sanitary Butterfly Valves Work in Healthcare Industry?

The application of stainless steel sanitary butterfly valve in food and beverage is the thermal electric water heater, which is mainly composed of heating tank plate, pressure sensor, power conditioner, water conditioning tap, the inlet pipe, and outlet pipe components, etc.

The heating groove plate is the key component of the thermal electric water heater, which consists of the groove weight, sealing ring, cover, and electric heating elements.

The electric heating element is located in the tank of the tank plate, also known as the tank of the thermal water heater. Demand Water Heaters with a heating body made of steel heating tube allow cold water to enter the tank and be heated directly through the outside of the stainless steel thermals.

Food grade stainless steel butterfly valve is currently the most widely used heating method in the hot electric water heater industry.

The post How Do Sanitary Butterfly Valves Work in Healthcare Industry? appeared first on Adamant Valves.

1. As the multi-layer soft and hard stack sealing ring is fixed to the valve plate when the valve plate is in an always-open status, the medium has a frontal brush on its sealing surface. After the soft sealing in the metal sheet is brushed and eroded, the sealing performance is directly affected.

2. Limited by the structural conditions, this structure is not suited to be made into valves that have a diameter less than DN200, because the overall structure of the valve plate is too thick and the flow resistance is too big.

3. Due to the mechanism of the rubber-lined sanitary butterfly valve, the sealing between the sealing surface of the valve plate and the valve seat is determined by the torque of the transmission device. In the positive flow state, for tube pinch valve, fluorine lined valve, exhaust valve, the higher the pressure of the medium is, the tighter the sealing squeezes. When the medium backflows, with the pressure of the medium increases, the unit positive pressure between the valve plate and the valve seat is smaller than the pressure intensity, resulting in the sealing beginning to leak.

4. High-performance fluorine-lined butterfly valve is characterized by the fact that the valve seat sealing ring is composed of a plurality of stainless steel sheets on both sides of a flexible T-shaped sealing ring.

The sealing surface of the valve plate and the valve seat is an oblique conical structure, and temperature and corrosion resistant alloy material is welded on the surface of the oblique conical structure. This structure effectively compensates the elastic deformation between the sleeve and the valve body, solves the sealing problem of the valve in the process of the two-way interchangeable medium transportation.

Using soft T-shaped multi-layer stainless steel sheets on both sides of the sealing ring has the dual advantages of metal hard sealing and soft sealing. Whether in low temperature or high-temperature conditions, both have a sealing performance of zero leakage.

Experiments suggest that in positive flow status, the pressure of the sealing surface is caused by the torque of the transmission and the effect of the medium pressure on the valve plate. When the positive medium pressure increases, the tighter the squeeze between the oblique conical surface of the valve plate and the sealing surface of the valve seat, the better the sealing effect.

When the medium backflows, the sealing between the sealing surface of the valve plate and the valve seat is determined by the torque of the transmission device. With the increase in the reverse medium pressure, the unit positive pressure between the valve plate and the valve seat is smaller than the pressure intensity.

Therefore, the utility model does not install the soft and hard multi-layer sealing ring on the valve plate as in current technologies. Rather, it is directly installed on the valve body. Adding an adjustment ring between the valve plate and the valve seat is very ideal for two-way hard sealing.

The post The Problems in the Use of Fluorine Lined Butterfly Valves appeared first on Adamant Valves.

This may sound discouraging to business owners but fortunately, all is not lost. Lots of manufacturers have already managed to develop new sanitary valves which can take on the fermentation of antibiotics with ease. They can also withstand corrosion and resist rust. In short, they offer value for money.

Design

The latest sanitary butterfly valves feature cutting-edge technological concepts meant to curb bacterium and polytetrafluoroethylene liners. This is made possible by the fact that screw threads of butterfly valves do not directly touch the production material. Keep in mind that the valves can withstand high temperatures as well as corrosive liquids. That explains why they are ideal for organic solvents, acids, and alkalis.

Specifications

Working pressure, operating temperature, and diameter are some of the most important specifications one has to take into account when considering sanitary valves. The diameter is usually measured across the valve inlet or outlet port. Working pressure on the other hand is simply the pressure at which the valve is designed to optimally operate. Then there is the operating temperature which happens to be the most important specification.

It is simply the ideal temperature that can allow smooth flow of liquids through the valve without compromising their composition and ultimately quality. Note that these valves can be configured to work with gases, liquids, and liquids with suspended solids. The ideal temperature is therefore one that the valve can easily withstand and still function as it should.

Body Material

This can be either plastic or metal. Metal choices often include copper, cast iron, bronze, ductile iron, steel, and stainless steel. Plastic choices include CPVC and PVC. Common end connections may be threaded or buttweld. Other forms of connections on the common end may include solder end, lugged, flangeless wafer style, grooved end, and mechanical joint. Sanitary valve actuation types include pneumatic, manual and electric.

Choosing the best valve

Sanitary valves are not the same. That being said, you should only select your valves according to the characteristics and composition of the fluids that will pass through them. This explains why valves are made of different materials as already hinted.

Some materials can handle more corrosive and flammable liquids than others. Failure to take this simple consideration into account can easily lead to crystallization or corrosive build-up around the piston. This can in turn lead to unexpected safety problems some of which could be life-threatening.

Care and maintenance

You don’t have to worry much about the performance of your sanitary valve. They call for little maintenance. It should however be noted that regular inspection is mandatory if one is to enjoy the full benefits that come along with the valves.

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