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Check Out Our Booth at Construction Machinery Trade Fair Ipoh 2023 (15 – 17 SEP)

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Check Out Our Booth at Construction Machinery Trade Fair Ipoh 2023 (15 - 17 SEP)

We’d love to meet you in person at the Construction Machinery Trade Fair Ipoh.

Visit us on 15-17 September 2023 at the SMJK YUK CHOY, Ipoh. Booth No: G3

Locate us on the Map below. See you on the day!

马来西亚建造行联合总会 | 育才国民型中学大礼堂

Looking for flanges, fittings, pipes, valves and gasket?

Saliran Group has over 10 years of experiences in trading of a wide range of flanges, pipes, valves, fittings, gasket and related parts and accessories (“PVF products”) as well as steel products with numerous happy customers all around the world. We supply a variety of gaskets either in metal, non-metal as well as food-grade approval available material.

Click on the link below to contact us now!

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Check Out Our Booth at PIPOC 2023 (7 – 9 NOV)

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Check Out Our Booth at PIPOC 2023 (7-9 NOV)

We’d love to meet you in person at the the PIPOC 2023 MPOB International Palm Oil Congress & Exhibition.

Visit us on 7 – 9 November 2023 at the Kuala Lumpur Convention Centre (KLCC) Hall 5, Booth No: 144 & 153.

Locate us on the Map below. See you on the day!

Looking for flanges, fittings, pipes, valves and gasket?

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All You Need to Know About Stainless Steel Pipes

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All You Need to Know About Stainless Steel Pipes

In essence, stainless steel is a low-carbon steel that has at least 10% by weight of chromium. Chromium is added to steel to give it its special stainless, corrosion-resistance qualities. Because steel contains chromium, a tenacious, adherent, invisible, corrosion-resistant chromium oxide coating can develop on the steel surface.

This coat can self-heal if it sustains mechanical or chemical damage as long as oxygen is available, even in trace amounts. By adding other elements like molybdenum, nickel, and nitrogen as well as increasing the amount of chromium in the steel, the corrosion resistance and other beneficial qualities are improved. Stainless steel comes in more than 60 different grades. The entire group may be split up into four classes, though. Each is recognized by the alloying substances that have an impact on their microstructure and are given names.

At Saliran, we choose high-quality materials that exhibit high levels of corrosion resistance together with appropriate mechanical and physical qualities. Numerous applications and industrial sectors in and outside of Malaysia use our stainless steel fittings.

Exploring the Benefits and Characteristics of Stainless Steel Pipes

Due to the features they possess, stainless steel pipes are the most sought-after and searched-for pipes globally. When operating in any setting, such as chemical industries, cooking areas, hotter temperatures, and water supply regions, these High-temperature resistance pipes are the best and most dependable option. It provides the greatest quality, and the qualities it possesses make it exceptional and the ideal choice for many different fields.

Due to the wide range of components they include, which only adds to their versatility, they are pricey. It withstands trying circumstances and produces the greatest outcomes.

Properties of stainless pipe fittings in a nutshell:

They don’t corrode
They have a high strength rate
These are robust
They are ecologically beneficial since they are 100% recyclable
They can be controlled and handled with ease
These are long-lasting.

Match Your Needs with the Right Stainless Steel Pipe:

With more than ten years of experience in the trading and supply of premium Corrosion resistance steel pipes, Saliran Group has a large number of satisfied clients all over the world.

To satisfy your needs, we offer a range of Welded pipes with various standards and specifications.

However, when you are looking to buy stainless pipe fittings, consider the following things:

Quality:

Since quality cannot be compromised at any cost, it is always crucial to examine it. People frequently settle for substandard quality in their pursuit of lower prices, which leads to disastrous circumstances.

Therefore, it is usually preferable to use only high-quality stainless pipes to prevent accidents and other issues. High-quality SS pipes will be more durable and produce superior results.

Standardization and Certification:

When compared to products without one, those with certification and standardization represent the highest levels of performance and quality. Standardized items pass several tests to obtain certifications and provide you a guarantee, so you can always go and have your concerns heard, as opposed to uncertified products, which have no guarantee and won’t last for you over the long haul.

Here, it is important to note that Saliran is certified to the latest version of the industry standard ISO 9001:2015. To prepare individuals for a successful career with Saliran—at the vanguard of the Fourth Industrial Revolution (IR4.0)—the company offers extensive training programs. Employees use a hybrid approach to gain technical competence and certifications throughout the program.

Look for trustworthy sources and client testimonials:

We should constantly think about the people we know before making any kind of purchase since we can trust them to give us the proper service and point us in the right route. It’s because you have a strong relationship with them, a solid connection, and reliability that works in your favor.

For instance, if an issue with the product arises in the future, they will always consider it and offer the finest services, sometimes for a longer period. After that, you may search for further choices, but only those that are also dependable. To determine a product’s dependability, it’s crucial to read prior customer evaluations from credible sources because they will point you on the proper path.

You can operate more effectively, consistently, and securely because of Saliran’s committed workforce, cutting-edge technology, and worldwide reach and capabilities. Building a world that flows smoothly is the irrepressible purpose of Saliran Industrial Supplies and Saliran Precision Engineering, which is supported by cutting-edge technology, a vast worldwide network, and an outstanding workforce.

Visit our website if you want to buy anything but can’t locate the correct supplier. Saliran Group is a global marketplace that links reputable suppliers and clients with engineering tools and services. On our website, we have provided you with a list of trustworthy connections for vendors and exporters. You may browse that list and select the best alternative from the many possibilities there.

Looking for flanges, fittings, pipes, valves and gasket?

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Basic Knowledge of Flange

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NeRo Pipeline connections Ltd connectors 20th March 2012

Basic Knowledge of Flange

The flange is a ring-shaped device that can be used instead of welding or threading various piping system components used throughout the piping system. Because they may be easily dismantled for transportation, routine inspection, maintenance, or replacement, flanged connections are used as an alternative to welding. Because threading large bore pipe is neither cheap nor dependable, flange ends are preferred. The flange is an essential part of every plumbing system.

Flanges are most commonly employed when connecting or disassembling a junction is required. Flanges can be found in pipe-to-fitting joints, valves, equipment, or any other important component of the piping system.

Flange Parts

A typical flanged connection is comprised of three parts:

Pipe
Flanges
Gasket
Bolting

Common Flange Types and Characteristics

Flanges are not a one-size-fits-all answer. Aside from sizing, selecting the best flange design for your piping system and intended use will help to assure dependable performance, a long service life, and a competitive price.

Here are some of the most prevalent flange types:

Threaded Flange

This design, also known as a screwed flange, has a thread inside the flange bore that matches the matching male thread on the pipe or fitting. Because of the threaded connection, you may avoid welding in many applications. Simply match the threading to the pipes to be joined.

Socket-Weld Flange

Socket-weld flanges have a connection in which you fit the pipe into the flange and then secure the connection with a single multi-pass fillet weld. This makes this form easier to install than other welded flange types while eliminating the drawbacks of threaded ends.

Slip-On Flange

Slip-on flanges are widely used and come in a variety of sizes to support systems with increased flow rates and throughput. Installation is a little more complicated because you’ll need to fillet-weld both sides of the flange to fasten it to the pipe.

Lap Joint Flange

Lap joint flanges are two-piece designs that require butt welding the stub end to the pipe or fitting and the use of a backing flange to produce the flanged connection. Because of this, this type is ideal for usage in systems with limited physical area or systems that require frequent disassembly and repair.

Weld Neck Flange

Weld neck flanges require butt welding for installation. Their integrity, performance in systems with multiple repeat bends, and ability to be used in high-pressure and high-temperature systems, on the other hand, make them a top choice for process piping.

Blind Flange

Blind flanges are simply boltable blank discs that are used to terminate or isolate pipe systems. When properly placed and combined with the appropriate gaskets, they can provide an excellent seal that is simple to remove when necessary.

Specialty Flange

Nipple flanges, an essential component of fluid conveyance systems, securely join pipes and fittings. These threaded extensions are short and offer leak-free couplings and ease of installation. Nipple flanges, known for their adaptability, play an important part in a variety of sectors, from plumbing to oil and gas, guaranteeing efficient fluid movement.

Orifice flanges are critical components of fluid measuring and control systems. They have a precision-drilled hole that allows for accurate flow rate and pressure monitoring. These flanges are widely used in industries such as petrochemicals and manufacturing, where they ensure accurate fluid management and efficient processes.

Long weld neck flanges are designed for important applications requiring strength and integrity. Their expanded neck design provides additional support, decreasing joint stress. These flanges are extensively used in industries such as oil & gas and power generation and are ideal for high-pressure systems.

Flange Facing Types

- Flat Face (FF): As the name implies, flat face flanges have a flat, even surface with a full face gasket that contacts the majority of the flange surface.
- Raised Face (RF): These flanges have a little elevated area around the bore and an inside bore circle gasket.
- Ring Joint Face (RTJ): This face type is used in high-pressure and high-temperature procedures and has a groove in which a metal gasket sits to maintain the seal.
- T&G (Tongue-and-Groove): These flanges have matching grooves and elevated portions. The design facilitates installation by allowing the flanges to self-align and providing a reservoir for gasket glue.
- Male and female (M&F) flanges: These flanges, like tongue and groove flanges, use a matching pair of grooves and raised parts to hold the gasket. Unlike tongue and groove flanges, however, these keep the gasket on the female face, allowing for more accurate positioning and a wider range of gasket material alternatives.

Flange Dimensions

Apart from a flange’s functional design, flange dimensions are the most probable factor to influence flange selection when developing, maintaining, or updating a pipe system. To ensure adequate sizing, consider how the flange interfaces with the pipe and the gaskets in use.

Common factors to consider include:

- Outside diameter: The distance between two opposing flange face edges.
- Thickness: The thickness of the outer adhering rim.
- Bolt circular size: The distance calculated from center to center between opposing bolt holes
- Pipe size: A reference to the pipe size to which the flange relates.
- Nominal bore size: The inner diameter of the flange connector.

Flange Classification and Service Ratings

Flanges are frequently classified according to their capacity to tolerate high temperatures and pressures. This is denoted by a number followed by the “#,” “lb,” or “class” suffix. These suffixes are interchangeable, but they will vary depending on the location or provider.

Typical classifications include:

150#
300#
600#
900#
1500#
2500#

The exact pressure and temperature tolerances will vary depending on the materials utilized, the flange design, and the flange size. The sole constant is that pressure ratings decline as temperatures rise in all circumstances.

Flange Standards and Markings

Flanges are classified as global standards created by the American Society of Mechanical Engineers (ASME) – ASME B16.5 & B16.47.

To aid in the replacement or verification of existing parts, all flanges must carry markings – often on their outer perimeter.

These markers are also in a certain order:

Logo or code of the manufacturer
ASTM material code
Material Grade
Service rating (Pressure-temperature Class)
Dimensions
Thickness (Schedule)
Special designations, if applicable — for example, QT for quenched and tempered or W for welding repair

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Benefits of choosing stainless steel flanges- A complete guide

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Benefits of Choosing Stainless Steel Flanges- A Complete Guide

Well, we all know that pipelines are very important in almost all industries. Whether we talk about oil, mining, or another industry, pipelines are required to transport resources safely from one point to another. But, when these pipelines are not able to do the transportation of resources, they are of no use. Well, one of the steps that most industries follow to keep the pipeline system fully functional and smooth is that they invest in suitable pipe flanges. These pipe flanges are known for their ability to control the entire piping system well-connected and integrated.

When you reach out to a company to purchase flanges, they will let you know all the available materials and the product’s plus and minus. However, it is better to seek some referrals beforehand so that you can invest your money in the right products. With many materials available that you can opt from, this article will highlight some of the key benefits of using stainless steel pipe flanges fittings.

High corrosion resistance

The first and foremost benefit of using stainless steel flanges is that they offer high corrosion resistance, which makes them the ideal choice for many customers. This is also one of the plus points of stainless steel flanges. They can sustain and function well in various environmental conditions where other products usually get corroded.

Anti-corrosion property of stainless steel is very beneficial, especially in the oil and gas industries, where corrosion remains a considerable concern as the flow of oil in the pipes make them rust more often.

Versatility

The next feature of the Stainless steel flanges Is their versatility. This means that they can incorporate various materials, including nickel, molybdenum, or nitrogen. This helps in enhancing the overall quality and other properties of the product. Besides this, the high versatility also gives you the option to use the dimensions according to your requirements. This means you will get hands on the best products that perfectly fit into your outdoor and indoor environments.

Strength

Well, the next benefit is the one we all have heard all our lives. Yes, you guessed it right. It’s the high strength of the Stainless steel flanges. This is what makes it the best choice for high-temperature and pressure environments.

Value for money

One of the main issues with traditional hydraulic fittings and flanges is that they aren’t that robust and are easily prone to corrosion and rusting. This means they will only last you for a while, and you will have to spend your money again to get new ones. However, one of the solutions is to opt for stainless steel flanges made from highly reliable material capable of tolerating high pressure and surviving in high vibrations areas. If you are searching for dedicated flanges materials that are reliable, durable, and give you value for your money, then you need to opt for stainless steel flanges.

Highly sustainable and durable

The next benefit of stainless steel fittings is that they are more sustainable. This means that after doing the fittings, you won’t be required to inspect again and again if there are loosening in connections. This is what sets stainless steel flanges apart from standard hydraulic fittings. They help establish solid connections and reduce the likelihood of loosening fittings. Besides this, another sustainable feature of stainless steel flanges is that they have a shiny surface that doesn’t get rusted easily. Thus, you won’t be required to spend extra on products that aim to protect the flanges from corrosion.

Easy cleaning and inspection

Another benefit of stainless steel flanges is that you can quickly inspect them. This means that when doing any replacement, modification, or cleaning, you will only have to spend a little time as the flanges linking system makes the overall Pipe connections less complex. Besides this, it also helps you save money as you can do all the cleaning independently instead of hiring a professional service to help you access the piping-linking system.

Industrial uses

In industries, flanges are extremely useful because they provide a tight connecting system for valves, pipes, and other equipment. They simplify the connections providing easy access for cleaning and modification as well. Besides this, these stainless steel flanges can also sustain and tolerate the high temperatures and pressure of the industries.

Conclusion

In this article, we have highlighted the key benefits of opting for stainless steel flanges. With many options available in the market, you can choose the one you like. However, do consider the material choice beforehand. If you want to purchase flanges for your company, feel free to reach out to Saliran to seek the best services and products at affordable rates.

Looking for flanges, fittings, pipes, valves and gasket?

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All you need to know about the Types of Flanges

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All You Need to Know About the Types of Flanges

The primary purpose of the flanges is to help connect pipes, valves, and pumps. With a range of materials available and a variety of types and styles, you need to be aware of all the aspects and get adequate information beforehand in order to make the right choice. The most commonly available types of flanges that you can use in your industries are given below;

SLIP-ON FLANGES

Slip-n flanges are the type of flanges that are connected to the pipe or the fittings. The connections are made by getting it welded inside and outside. In other words, these flanges are ring-shaped structures placed over the pipe’s end. As the name suggests, these flanges are supposed to have a slipping property, which means they slip over a pipe. Following the same point, they are designed to have a larger bore size and the diameter of the outside pipe as well.

Benefits

They save a lot of safe because of their compact and slim shape.
They are the best-used options in liquid industries, with a low risk of leakage and spillage.
They are easily affordable.
They are used in low-pressure and temperature areas.
They are among the most popular and frequently used flanges types.

WELD NECK FLANGES

Other names for weld neck flanges are high high-neck flanges or tapered hub flanges. These flanges systems are designed in a way that they have a well-balanced neck that helps in transferring the tension of the pipe. The channel is also beneficial in reducing the overall pressure that otherwise would accumulate at the flange button and would result in distortions. Most customers prefer them because they are capable of functioning even at high temperatures.

Benefits

They help in distributing the mechanical stress of the pipe.
These flanges can tolerate extremely high temperature and pressure conditions.
You can easily connect them with either fittings or pipes.
They are approvingly resistant to corrosion and rust.
They reduce the overall friction and also offer minimal to no turbulence.

SOCKET WELD FLANGES

Socket weld flanges are the type of flanges that adjust the incoming pipe into the socket to great a fitting. The connections are made with the help of fillet weld on the exterior. They are mostly preferred in the situation when there is an issue with space management, as they can even fit perfectly and effortlessly and narrow spaces. They are not preferable to be used for something other than critical services.

Benefits

Their sleek and small design makes them an ideal choice for small pipes.
They offer double fatigue strength than the double-wedged flanges.
The risk of leakage is shallow.
Their static power is the same as the slip-on flanges system.
They are commonly used in areas of high pressure.

BLIND FLANGES

Blind flanges are the type of flanges that do not have a bore at the center of the flange system. Such kinds of flanges are used to terminate or seal the ends of pressure vessel openings, valves, and pipes. In short, they are helpful in stopping the flow of liquid. Because of the simple design, these flanges can be bolted and unbolted easily compared to the other flanges types.

Benefits

They have high mechanical stress-tolerating abilities and are known to strengthen the pipe system.
They are capable of sustaining high-pressure areas.
They are beneficial in sealing the opening of the nozzle effortlessly.
They can function well, even if located at greater distances from the work site.
They are easier to clean and inspect and thus can preserve a lot of time and money.

LAP JOINT FLANGES

Such flanges have a flat face and are always used in combination with a stub end. They are usually preferred to be used in expensive pipes and closely resemble the slip-on flanges, except for a few differences in the manufacturing design. They are highly affordable and help reduce the piping system’s overall cost as they minimize the need for expensive materials.

Benefits

They are fortunate to use, and they do not cost much money.
They help simplify and ease the bolting operations.
These flanges have freedom of movement around the pipe and can move quickly without restrictions.
They are easy to assemble, and the pipe can be removed easily at any time for cleaning purposes.

THREADED FLANGES

These flanges are also very much similar to slip-on flanges, but the only difference is that they have a tapered thread. This addition of tapered thread helps threaded flanges to get attached to the pipes without welding.

Benefits

They are ideal be used in pipes that have a small diameter.
They are used in low-pressure and low-temperature areas.
They are incredibly beneficial to be used in explosive places like gas stations and power plants.
There is no need to get the pipe welded to the flange, which saves a lot of time.
They are designed to withstand big shocks, vibrations, and pressure changes.

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How to choose the suitable flanges according to your needs and Budget

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How to Choose the Suitable Flanges According to Your Needs and Budget

What is a flange?

A flange is a device that is used to connect various pipes, valves, and other equipment so that a connection of pipes can be formed. In other words, this helpful device allows for the easy management and assembly of the piping system. If you are planning to buy the correct type of flanges or carbon steel fittings but need support figuring out where to start, here’s a complete guide that will serve as a road map and help clear your queries. This article highlights the uses, benefits, types, and things to consider before buying flanges.

Why use Flanges?

Well, this is one of the most frequently asked questions. People usually need to be aware of how flanges can provide them with a convenient and reliable way to connect the pipes to other equipment, including pumps and valves. This is because flanges are designed to offer flexibility and support to the piping systems so that you can easily access all the components with ease and with less effort. When you use flanges or carbon steel fittings, you will also notice that it becomes easier to assemble and disassemble in case of any cleaning-related task or any other maintenance issue.

How using flanges can make your Industrial work easier.

Flanges have been reported to be one of the most valuable pieces of equipment that makes industrial work much more accessible, smooth, and hassle-free. Flanges systems have been extensively used in various industries like transport, gas, water, and petroleum. With a range of materials to choose from, you can select the one that suits and fulfills your needs. Here are some of the incredible advantages of using flanges in industries:

An essential benefit of flanges is that you can easily access those areas that are out of reach or are complex with a flange system.
They can be assembled and disassembled easily, saving a lot of effort and time. All you need to consider is moderate torque application, and you will be all set to go.
It allows easy maintenance of the piping connections and can also tolerate extremely high pressure and temperature. Besides this, the flange system prevents components from loosening, which is the main problem with traditional hydraulic systems.

Selecting the right Flanges Material

We talk about the material of flanges; there is a range of materials available that you can pick from. Each material has different factors, including temperature, pressure tolerance, and rusting properties, which you need to consider beforehand. Following are some of the commonly used materials in the manufacturing process.

Stainless steel:

Starting from stainless steel, the material has some great qualities that make it a perfect choice for a flanges system. It is capable of tolerating high-pressure and temperature areas. Moreover, the material is also known for its incredible anti-corrosion abilities. Besides this, it is also highly reliable and durable and is extensively used in piping systems in various industries that deal with oil and water applications.

Carbon steel:

The following material on the list is carbon steel. Carbon steel flanges are also widely used for different purposes, especially in fuel lines and shipping vessels, and offer great benefits. Such flanges are made of high-power carbon steel capable of bearing high weights due o its incredible strength and toughness. However, they were designed to be used in low-temperature areas.

Aluminum:

Aluminum flanges are commonly used in the petroleum, oil, and gas industries. These flanges are lightweight but are known to have great strength. They are preferred for industries that deal with medium-low temperatures and pressures.

Plastic

One of the lightest and cheapest types of flanges are plastic flanges. They have the same features and abilities as all the other flanges. The only point that needs to be considered is that they cannot handle immense pressure and heat. This is one thing that puts them behind the other types.

Nickel alloy

Alloys are known for offering superior strength and have the properties of sustaining and tolerating extreme environmental conditions as well. Besides this, their high heat and anti-corrosion abilities make them an ideal material choice for flanges. Also, they cost less in comparison with the number of benefits they offer.

Conclusion

After reading the blog, you can get a lot of insight into choosing suitable flanges considering all the essential aspects mentioned. There are a lot of companies in the market that offer you the best quality products intending to make their customers satisfied and happy. However, you need to decide after thorough research and consultation, as flanges are one of the critical components of a piping system. It’s essential to communicate with the experts and let them know what material and size you need so that they can offer you high-end products that perfectly fit your needs.

Searching for the best pipe flanges? Contact us today

Are you searching for the best pipe flanges or carbon steel fittings but need help knowing where to get the one? Here you are on the right page. Is here to help you get the best quality flanges at affordable rates. Our team will help you throughout the process, from full support and easy placement of orders to effortless and smooth deliveries at your doorstep. Contact us today, and let us offer you the best services available.

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Gasket

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Gasket

What is Gasket?

Flange gasket is intended to close the gap between two pipe sections. Gasket is also commonly referred to as an O-ring or washer. These objects often come in a variety of sizes and forms based on their intended use. Of course, flanged surfaces are used to join the majority of pipes. The joint between two pipes is not level or completely smooth. Instead, it has a flange, which flares out. Flange gasket is used for flanged surfaces like this one.

How Flange Gasket Works?

Like the majority of other gaskets, flange gasket functions similarly. They produce a sealed mating surface when installed, preventing leakage of water or other liquids. Water or other liquids usually flow through pipes. Water or other liquids may seep out through this mating surface if two pipes are linked together. Flange gaskets seal the surface to stop this from happening.

When used alone, pipes typically do not provide a sealed mating surface. This is particularly valid for pipes with flanged surface. This is particularly valid for pipes with flanged surfaces. Water and liquids can easily escape through the fractures on flanged surfaces because they are flared. Installing a flanged gasket is an easy way to stop leaks. To ensure that water or other liquids stay inside the pipes. The bordered gasket will adapt to the shape of the flanged surface.

Type of gasket flange

Non-metallic, semi-metallic, and metal gaskets are the three main types of flange gaskets.

In low pressure, low temperature, and noncritical service applications, non-metallic flange gaskets are employed. To fit in the grooves of the flange face, these flange gaskets are constructed from a soft substance.

Based on the needs of the Product and Service, the Semi Metallic Flange Gasket or Composite Flange Gasket is a blend of metal and nonmetal components. The Spiral wound Flange Gasket, which is appropriate for a wide variety of temperature and pressure Classes, is the most commonly used. A metal outer ring is typically fashioned into a spiral winding with a filler of graphite or PTFE, along with stainless steel or another alloy, to seal the flanged connection when squeezed.

The Metal Flange Gasket, also known as the Ring Type Joint Flange Gasket, is an all-metal gasket used to seal joints made of carbon steel, stainless steel, or other exotic alloys. The RTJ Flange Gaskets are intended for use in demanding situations involving high pressure and high temperature. A rectangular or oval cut groove on the face of the mated flanges receives the RTJ Flange Gasket. These flange gaskets are pressed into the grooves when they are tightened, creating a reliable seal at the flanged connection.

Properties of a Gasket

The gasket material ought to be highly tensile, flexible, and low in density. Additionally, it should be durable and resistant to internal pressure and chemicals. Additionally, it must adhere well to both itself and whatever else it touches.

The appropriate gasket will prevent corrosion in addition to sealing. Consideration must be given to additional abrasion, vibration, impact, and temperature fluctuations.

Nevertheless, strength is the most crucial component in every gasket application. It must be strong enough to sustain pressure without breaking under typical circumstances. This is done so that it can perform its main duty of sealing tightly.

Applications of a Gasket

There are various industrial applications for gaskets. Petrochemical, gas, machinery, and plumbing are some of the examples. In the workplace, gaskets in pumps, pipes, valves, and machinery are a few examples. The simplest approach to condense these is to consider the statement, “If it needs sealing and it does not move, it probably uses a gasket.”

Most people typically associate head gaskets with the metal or stainless steel gaskets used in automobiles. However, as you can see, there are many different types of gaskets.

Most frequently, they are passed off as something else, such as washers or O-rings. They all perform important tasks in a variety of applications.

How are Gaskets Tested?

Gasket goes through testing including hot compression tests as part of the evaluation procedure. This test establishes the maximum heat that the gasket can endure without material degradation or failure.

The next step is to inspect the sealant for any leaks and to look any other issues, such as pinholes or cracks. Before the product leaves the factory, professionals will undertake a thorough evaluation of it as the last step in the manufacturing process.

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Type of Valves Used in Piping

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Type of valves used in piping

What is a valve?

A valve is a device that controls the flow of fluids by opening and closing. Any substance that can flow freely is considered a fluid in a scientific setting, and valve can utilised either liquids or gases. Also, it regulates the flow of fluid in hydraulic, pneumatic, irrigation, plumbing, and motor systems. The venerable pre-transistor vacuum tube is sometimes referred to as a valve.

Moreover, the simplest valve is one-way flap devices that open with backflow pressure and permit flow in one direction and shut to stop flow in the opposite direction. In essence, this is how the heart’s valves function. Furthermore, it can operates manually or with a motor, and in addition to being powered by the physics of flow. They can also be powered by pressure or temperature.

Other than that, levers, pedals, hand knobs, or wheels are commonly used to crank a screw-turned stem on manual valve. A valve may include geared mechanical inner workings that activate the valve ball or disc against its seat, which may contain a gasket. Also, it can control fluid to onw or more than four ports.

The functions of a valve in piping systems.

Valve plays an important role in boosting process efficiency, improving quality control, and maintaining process safety and reliability. The primary consideration in valve selection is the valve’s desired function. It is also used in piping systems for a variety of reasons, including:

Initiation or cessation of fluid flow.
Controlling flow rates in a pipe system.
Pressure regulation and fluid temperature in a pipe system.
Redirecting flow from one path to another and restricting flow for system balance or to avoid over-pressurization.
Prevent fluid reverse flow
In the event of a system breakdown, the flow is halted.
Improving safety in a pipe system by alleviating pressure or vacuum.

Type of Valves.

Different types of valves use in different sectors. These are the type of valves:

i. Ball Valve

A spherical plug is used in ball valve. The spherical plug serves as a control element. It is commonly utilised in the chemical process industries. Moreover, it is utilised in situations where throttling and shutting down are essential. It has excellent flow properties. In addition, it is made up of a two-way globe with a ball that spins between robust seats. It is small, takes little maintenance, and does not require lubrication. Moreover, it is offered in three different patterns: venture, reduced, and full port. It can be closed or opened by turning the ball a quarter turn. And also, it does not provide adequate throttling. It is available in sizes ranging from 6mm to 900mm and it can withstand pressures of up to 500 kg/cm and temperatures of up to 300°C.

ii. Gate Valve

The gate valve operates through the reciprocating movement of a disc within its body. It can have either a single or double disc. It is used to turn off the power. The shut off of a twin disc valve is satisfactory.

Besides that, the stem of a gate valve might be rising or non-rising. It come in a variety of diameters ranging from 12mm to 30mm and even larger. Also, it is lightweight, inexpensive, and has a low pressure drop. Hence, it provides accurate flow control. It also can withstand pressures of up to 20kg/cm2 and temperatures of up to 675°C. Cast iron, carbon steel, stainless steel, ductile iron, bronze, nickel alloys, and other materials are used to create gate valves. Gate valve of the rotating disc type with a quick action lever actuator

iii. Global Valve

Global valve works via the reciprocating movement of a disc or plug. The disc or plug slides toward or away from the seat, either stopping or permitting fluid passage. The disc or plug is inserted into the valve seat. Therefore, it is detachable. Besides that, the pressure drop in the globe valve is significant.

iv. Check Valve

A check valve is used in piping systems to prevent backflow. The pressure of the fluid travelling through the pipeline causes the valve to open, Reverse flow prevents the fluid from flowing in the opposite direction by closing the valve. External control is not required for check valves. They operate automatically and hence lack an operating handle or stem. The most basic check valves have a one-way flap mechanism.

Moreover, check valves are typically small, straightforward, and affordable. It is used in a variety of industrial applications, including feed water control systems, gas systems that combine various gases into a single gas stream, and fuel and oxidizer mixing systems. Also, they are frequently employed in household applications to avoid the mixing of a hygienic potable water supply with water from filthy systems.

v. Needle Valve

A needle valve has a plug. The plug is tapered and fits snugly into the seat. Furthermore, the annular space between the tapered body of the plug and the seat controls the flow rate. It is also utilised for small, precise flows. The valve size ranges from 3mm to 25mm, and it can withstand temperatures and pressures of up to 260°C and 650 kg/cm respectively.

Other than that, they are used to reduce pressure variations by controlling actuating air or hydraulic fluid. The needle valve can be made of bronze, brass, or stainless steel, among other materials.

vi. Butterfly Valve

The regulating element in a butterfly valve is a disc known as a blade, vane, or flapper, which rotates in a horizontal or vertical direction and permits fluid to flow, Throttling or on-off operation at modest pressure drop is possible with a butterfly valve.

Besides that, it is inexpensive, simple to install, and prevents solids from accumulating. Also, butterfly valves can be screw-type or wafer-type. It can be operated manually, electrically, or automatically. Other than that, a butterfly valve of the water kind is depicted. It can be utilised for vacuum or pressure applications up to 80 kg/cm2. It is available in sizes ranging from 50mm to 900mm. The blade or flapper can be constructed or rubber, neoprene, or chloro sulphonated polyethylene and more.

vii. Safety Relief Valve

The fundamental purpose of Safety Relief Valve is to protect people, property, and the environment. It is a safety device that protects a pressurised vessel or system from over-pressure if all other safety devices fail. It is intended to open and relieve excess pressure form vessels or equipment before closing and preventing additional fluid, gas, or steam discharge once normal conditions have been restored.

How are Valves in Piping Systems Classified?

Valve classification can be divided into various categories. They are classified according to function, working mechanism type, end connections, mechanical motion, construction material, pressure and temperature ratings, and port size. When selecting a valve, it is critical to analyse each of these classifications to ensure that the it is appropriate for the application.

(A) Valve Function

Valves are used in processes to perform a variety of purposes. They can be used to start and stop the flow as well as to adjust the flow and pressure. Also, they may be necessary to control the flow direction or to improve process safety. The types are classed based on flow control as isolation valves or regulation valves.

(I) Isolation valves

Isolation valves are meant to either entirely limit or enable fluid flow without obstructing it. Hence, they should not used continuously in the partially open position because they may provide poor flow control or suffer wear damage over time.

(II) Regulation valves

Regulation valves are used for precisely regulating pressure and fluid flow. They can be utilised in procedurres that require a partial open or closed state in a safe and efficient manner.

However, some valves can do both jobs, while others are only suggested for one.

(B) Operating Mode

Based on how they are manipulated, valves are classed as manual, actuated, or automatic.

(I) Manual Valves

Manual valves are usually actuated by hand using wheels, levers, pedals, knobs, or chains. They can be mechanically geared to change movement direction and/or improve operation speed or torque.

(II) Actuated Valves

Valves are frequently coupled to electric motors, pneumatic systems, hydraulic systems, or solenoids in high-precision or large scale applications to enable remote operation and automation of valve function.

(III) Automatic Valves

Some valves are actuated automatically when a certain flow condition is satisfied. During backflow, for example, check valves close without the need for external intervention. Similarly, when an over-pressure condition is identified, pressure release valves are engaged automatically.

(C) End Connections

Valves are joined to pipes by joints, which can be screwed, flanged, or welded. The following are some examples of common valves ends:

Flanged end valves: A flange is a plate or ring at the end of a pipe or valve that forms a rim; two flanges are fastened together to form a connection.
Screwed end valves: Screwed end valves feature threaded joints that are screwed to the end of a pipe or another fitting.
Socket welded valves: The pipe is inserted and welded into a socket.
Butt weld valves: The valves have beveled edges that correspond to a matching bevel on the pipe.
Wafer type valves: The narrow valve body is located between two pipe flanges, with bolts around it. These valves are typically used on small-space systems.

(D) Mechanical Motion

Valves are classed as Linear Motion Valves or Rotary Motion Valves based on the mechanical motion of the closing member. A linear motion valve is one in which the closing element of the valve moves in a straight line to allow or stop flow. A rotary motion valve is one in which the closing element rotates or moves in a circular path.

Valves are also classed as multi-turn or quarter turn depending on how far the handle/wheel must be turned to completely open or close the valve. Rotary motion valves frequently require only a quarter turn (90°) of the stem to transition from completely open to fully closed.

(E) Construction Material

Depending on the intended temperature and pressure ratings, durability, and use, the valves body can be made of stainless steel, alloy steel, brass, cast iron, or plastics. To achieve the appropriate amount of seal and temperature/pressure ratings, the gasket, packaging, and valve seat are often composed of PTFE, ROM, FKM, PA, EPDM, or NBR.

(F) Pressure-temperature ratings

Valves can also be categorised based on their pressure and temperature specifications. These ratings describe the maximum permitted pressure and temperature levels that the valve may withstand safely.

Looking for flanges, fittings, pipes and valves?

Saliran Group has over 10 years of experiences in trading of a wide range of flanges, pipes, valves, fittings, and related parts and accessories (“PVF products”) as well as steel products with numerous happy customers all around the world. We supply a variety of valve types such as Ball Valve, Gate Valve, Global Valve, Check Valve, Needle Valve, Butterfly Valve, and Safety Relief Valve.

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Lap Joint Flange

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Lap Joint Flange

The shape of a lap joint flange is similar to a slip on flange; it has a curved radius at the bore that can connect with a stub end fitting and slide over the pipe. The pipe is usually welded to the stub end so that it can freely rotate around the stub end. Lap joint flange and stub end assembly are primarily used in piping systems that must be dismantled frequently for inspection or routine maintenance.

To reduce the overall cost of the connection, a stub end will often be made of a special material grade (nickel alloy), with the lap joint made of basic carbon or commodity stainless. Naturally, for uniformity, we recommend that both items be of the same grade. However, your application will determine what is best and/or necessary.

Advantages and Disadvantages

The composite two-piece construction gives the lap joint flange two clear benefits when in operation. Imagine a lapped joint piping connection where all “wetted” sections must be made of a costly alloy (such as nickel, zirconium, tantalum, or titanium, etc.) to resist corrosion. The pricey, corrosion-resistant alloy can be used to create the stub end. Besides that, common carbon steels can be used to create the flange that serves as the backing flange. Therefore, it is less expensive than an entire alloy flange. On the other hand, it is not physically welded to the pipe. Hence, it may rotate easily to align bolt holes, making assembly and disassembly much simpler. Also, this make it easier to operate a piping system that must frequently be disassembled for inspection or standard maintenance.

However, the use of the flange has several drawbacks. The flange bore’s internal surface and the stub ends’ external surface have produced fissures that can easily become contaminated. Moreover, the accumulated contaminants might be problematic and cause crevice corrosion. At the design temperature specified by ASME B31.3, the longitudinal strains brought on by pressure, weight, and thermal expansion may build up and surpass the fundamental allowed stress. As a result, it is often utilized in moderate service, where the strains placed on the flange connection by the pipe are minimal. It is because the material of the flange may differ from that of the stub end, galvanic corrosion may occur in some circumstances.

Usage of Lap Joint Flange

Typically, low pressure applications require for the usage of the flanges. Hence, it is not appropriate when the flange pair must support heavy weights, Moreover, it may be necessary for some pipes, such as a metal pipe that has previously been lined with plastic.

Stub End – Key Fittings for Lap Joint Flange

A backing flange for a lap joint is always utilized with a stub end. Stub ends come in three main types: Type A, Type B, and Type C.

Type A:

The typical lap joint support flange can be machined to accommodate the Type A stub end.

Type B:

The standard slip on flange is intended to be used with Type B stub ends.

Type C:

The type C stub end can be utilized as either a slip on flange or a lap joint flange.

Furthermore, stub end patterns can be extensive or short in length. Long pattern ends are also referred to as ASA Stub Ends. The shorter end is used with ANSI 300 and 600’s bigger flanges. They are frequently utilized in sizes ANSI 900 and higher.

Differences Between Lap Joint flange and Slip On Flange

In essence, a slip on flange is a ring that fitted over the pipe end. Additionally, the flange face must be far enough from the pipe’s end to allow for the application of a weld to the inner diameter. Moreover, the slip on flanges outside diameter can be welded to the backside of the flange. Slip on flanges cost less to make and are simpler to align than weld neck flanges.

Besides that, slip on flange and lap joint flange are quite similar. Also, it almost seems identical from the outside which is the holes and sides of the lap joint flange. However, it has a curved radius on the reverse side to allow the lap joint stub end. On the other hand, the slip on flange can serve as the lap joint flange when type B or type C stub ends are utilized.

Looking for flanges, fittings and pipes?

Saliran Group has over 10 years of experiences in trading of a wide range of flanges, pipes, valves, fittings, and related parts and accessories (“PVF products”) as well as steel products with numerous happy customers all around the world. We supply variety of flange types such as blind flange, slip-on flange, weld neck flange, socket weld flange, threaded flange, lap joint flange, and orifice flange.

Click on the link below to contact us now!