DIN Flanges

What are DIN Flanges?

DIN flanges are a type of flange that conforms to the dimensional standards set by the Deutsches Institut für Normung (DIN), a German national standards organization. DIN flanges are commonly used in Europe and other parts of the world, and they are available in a range of sizes and pressure ratings to suit different applications. These flanges are typically made from forged steel and are used to connect pipes and other equipment in industrial and commercial piping systems.

Standard Specication For DIN Flanges

• Dimensions: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
• Size : 1/2″ (15 NB) to 48″ (1200NB)
• Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
• DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629,
• DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
• BS : BS4504 , BS4504, BS1560, BS10
• Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Advantages and disadvantage of DIN Flanges

DIN (Deutsches Institut für Normung) flanges are known for their strength, durability and reliability. Some of the advantages of DIN flanges include:

• They are strong and durable for high pressure and high temperature applications.
• They are compatible with a wide range of pipe sizes and materials, making them suitable for use in different piping systems.
• They are easy to install and maintain, reducing the overall cost of the piping system.
• They have a simple and clean design, making them easy to inspect and troubleshoot in the event of a problem.

Some potential disadvantages of DIN flanges include:

• They may not be available in all sizes and materials, making it difficult to find the right flange for your specific application.
• They may be more expensive than other types of flanges, depending on size, material and other factors.
• They may require special tools and equipment for installation, which can add to the overall cost of the piping system.

DIN flanges are a reliable and durable choice for use in piping systems. However, it is important to carefully consider your specific needs and requirements before deciding if they are right for your application.

What are the different types of DIN flanges?

DIN flanges are designed to conform to specific German standards and are often used in conjunction with other types of flanges, such as ANSI flanges, to create a secure and leak-free connection in a piping system. There are several different types of DIN flanges, each with its own unique features and uses. Some of the most common types of DIN flanges include:

• DIN Slip-On Flanges – These flanges are designed to be slipped over the end of a pipe and then welded in place. They are easy to install and provide a secure connection between the pipe and the flange.
• DIN Weld Neck Flanges – These flanges are designed to be welded to the end of a pipe, creating a strong and leak-free connection. They are commonly used in high pressure or high temperature applications where a secure connection is essential.
• DIN Blind Flanges – These flanges are used to seal off the end of a pipe or fitting. They are often used in conjunction with other types of flanges, such as slip-on or weld neck flanges, to create a secure connection.
• DIN Threaded Flanges – These flanges are designed to be threaded onto the end of a pipe, allowing for easy installation and removal. They are commonly used in low pressure applications where a quick connection is needed.
• DIN Lap Joint Flanges – These flanges are designed to be used with a stub end fitting, which is welded to the end of the pipe. The flange is then slipped over the stub end and bolted in place, creating a secure and leak-free connection.
• DIN Ring Joint Flanges – DIN ring joint flanges are a type of flange that is used in piping systems. They are designed to be used with ring joint gaskets, which are designed to be seated in the grooves of the flange. The advantage of using DIN ring joint flanges is that they provide a high level of sealing performance, which makes them suitable for use in high-pressure and high-temperature applications. They are commonly used in the oil and gas industry, as well as in other industries where a reliable seal is required.
• DIN Plate flanges: Plate flanges are the most commonly used type of DIN flange. They are flat, circular flanges that are typically made from a single piece of metal. Plate flanges are often used in applications where the flange needs to be welded to the pipe, such as in high-pressure piping systems.

In addition to these common types of DIN flanges, there are also several other less commonly used types, such as DIN Long Weld Neck Flanges, and DIN Spectacle Blind Flanges.

• DIN Long Weld Neck Flanges – A DIN Long Weld Neck Flange has a long neck that extends from the base of the flange, which allows for a smooth transition between the flange and the pipe. This design helps to distribute the stress from the flange evenly along the length of the pipe, which helps to prevent leaks and increase the overall strength of the connection. DIN Long Weld Neck Flanges are commonly used in high-pressure and high-temperature applications, such as in power plants and other industrial settings.
• DIN Spectacle Blind Flanges – A DIN spectacle blind flange is a type of flange that is used in piping systems. It consists of two metal discs that are attached to each other with a small metal bar or rod. One of the discs has a hole in the center, and the other disc is solid. This allows the flange to be used to either completely block off a section of pipe, or to allow fluid to flow through the pipe by removing the solid disc.

DIN flanges are a versatile and widely-used type of flange that can be found in many different types of piping systems. They are designed to conform to specific German standards and are available in a wide range of sizes and materials, making them suitable for a variety of applications.

Material of DIN Flanges

DIN Flanges are typically made from cast or forged carbon steel, stainless steel, or other alloy materials. The specific material used will depend on the application and the design specifications of the flange. It is important to choose the right material for a flange to ensure that it is strong and durable enough to handle the pressure and temperature conditions it will be subjected to in service.

Size of DIN Flanges

The size of a DIN flange is determined by the diameter of the flange and the pressure rating of the flange. The diameter of a DIN flange is usually specified in millimeters and can range from 15mm to over 2000mm. The pressure rating of a DIN flange is specified in bar, which is a unit of pressure. The pressure rating of a DIN flange can range from 1 bar to over 400 bar, depending on the specific type of flange.

Dimensions of DIN Flanges

The dimensions of DIN flanges vary depending on the specific type of flange and the size of the flange. For example, a DIN 2501 PN10 flange has a flange diameter of 110 millimeters and a bolt circle diameter of 90 millimeters, while a DIN 2566 PN16 flange has a flange diameter of 250 millimeters and a bolt circle diameter of 210 millimeters.
It’s important to note that DIN flanges come in many different sizes and dimensions, so it’s best to consult the specific DIN flange standard or the manufacturer’s specifications to determine the exact dimensions of a particular DIN flange.

DIN Flange Dimensions PN 6

DIN Flange Dimensions PN10/ DIN Flange Dimensions PN 16/ DIN Flange Dimensions PN 40/ DIN Flange Dimensions PN 64

PN10

DIN 2527 Blind Flange Dimensions & DIN 2527 PN10 Flange Dimensions

DIN 2527 flanges – These flanges are also known as weld neck flanges and are designed for use in high-pressure applications. They have a tapered hub and a long tapered neck, which allows them to be easily welded to the pipes. This type of flange is commonly used in piping systems that carry fluids under high pressure, such as water, steam, and oil.

DIN 2527 PN16 Blind Flange Dimensions & DIN 2527 PN25 Blind Flange Dimensions

DIN 2527 PN40 Blind Flange Dimensions & DIN 2527 PN64 Blind Flange Dimensions

DIN 2527 PN100 Blind Flange Dimensions

DIN 2544 Flange Dimensions (Flat Flange For Welding (Slip On) PN25)

DIN 2543 Flange Dimenisons

The DIN 2543 slip-on flange is another popular type of DIN flange. This flange is similar to the welding neck flange, but it has a shorter neck and is not suitable for welding. Instead, it is designed to be slipped over the end of a pipe and then secured with bolts. This makes it a quick and easy way to connect pipes, but it is not as strong as a welding neck flange and is not suitable for high-pressure applications.

DIN 2544 Flange Dimensions (Flat Flange For Welding (Slip On) PN25)

DIN 2558 Flange Dimensions

DIN 2561 Flange Dimensions

DIN 2565 Threaded Flange with Weld Neck PN6 Dimensions

The DIN 2565 threaded flange is another type of DIN flange that is used for low-pressure applications. This flange has threads on the inside of the flange, which allows it to be screwed onto the end of a pipe. It is a cost-effective option for connecting pipes, but it is not suitable for high-pressure applications because the threads can easily be damaged.

DIN 2566 Threaded Flange with Neck PN16 Dimensions

DIN 2566 flanges – These flanges are also known as threaded flanges and are designed for use in low-pressure applications. They have a flat face and a circular opening, but they also have a thread.

DIN 2567 Threaded Flange With Neck PN25 and PN40 Dimensions

DIN 2653 Flange Dimensions

DIN 2656 Flange Dimensions

DIN 2501 PN10 Flange Dimenisons

DIN 2642 PN10 Flange Dimensions

DIN 2527 PN10 Flange Dimensions

SS DIN Flange Pressure Rating

O.D. = outside diameter PCD = bolt circle diameter PN = nominal pressure in bars Note: (1 bar = 14.5 psi = 0.1 MPa = 100 KPa = 1.02 Kgf/cm²)

Check Din Flange Size Chart

Manufacturing process of DIN Flanges

DIN flanges can be produced by forging, casting, cutting or rolling. We mainly produce flanges by forging, cutting and rolling processes.

Manufacturing process of DIN forged flange

The forging process usually includes the following processes, i.e. selection of high quality billets, heating, forming and cooling.

• Raw material inspection – The key raw material used to produce flanges is billet or hot rolled bar stock. All raw materials purchased are supplied with test reports in accordance with British Standards with full traceability. This is the first mandatory step in the flange production process to ensure good quality. The raw materials are retested in-house to ensure chemical composition, mechanical properties and metallographic analysis.
• Cutting of raw materials – Correct and strict control of cutting sizes and proportions ensures full cost control.
• Heating – This is a very important step for the quality of the flanges. It is necessary to keep detailed records of heating temperatures to avoid overheating. Overheating can damage the structure of the metal and the mechanical properties of the raw material.
• Forging – The forging process is divided into free forging and die forging. The forging time and strength of flanges vary for different pressure classes.
• Heat treatment-The purpose of heat treatment is to eliminate the stress inside the flange and make the density more uniform. Careful recording of heat treatment temperature and cooling time is the key.
• Inspection of forging blanks – After the heat treatment process, select batch samples are tested again for chemical composition and mechanical properties to ensure that all items pass.
• Machining of forging blanks – During machining, inspection is performed along with machining to ensure that each part of the flange is qualified. Machining is performed on CNC and/or lathes.
• Finished Product Inspection – The finished product will be inspected 100% prior to delivery to ensure that the goods meet DIN, ASME, EN or customer standards.
• Documented Documentation – The entire production process and quality checks at different levels are documented according to ISO compliant standard operating procedures. This is the guarantee of good quality.
• Test certificates: As we are an ISO and PED certified manufacturer, we can issue test certificates for all goods upon delivery and inspection in accordance with British Standards.
• Packaging: All forgings and flanges are packed in wooden boxes or crates or pallets to ensure safe movement of the goods.

Production process of DIN casting flange

The production process of a DIN casting flange typically involves several steps, including the creation of a mold or pattern, the casting of the flange using molten metal, and various finishing and quality control steps. To begin the process, a mold or pattern is created using a material such as wood or metal. This mold or pattern will be used to create the shape of the flange, and will typically be made to precise specifications to ensure that the final product meets the desired dimensions and specifications. Once the mold or pattern is ready, the casting process can begin. This typically involves melting the metal that will be used to create the flange, such as iron or steel, and pouring the molten metal into the mold or pattern. The metal is then allowed to cool and solidify, taking on the shape of the mold or pattern. After the casting process is complete, the flange will typically undergo various finishing and quality control steps. This may include machining or grinding to achieve the desired dimensions and surface finish, as well as testing to ensure that the flange meets the required specifications and standards. Overall, the production process for a DIN casting flange is a highly precise and technical process that requires a thorough understanding of metallurgy, casting techniques, and quality control processes.

Manufacturing process of DIN plate cutting flange

The process here is relatively simple, and the key raw material is hot rolled plate. The process is mainly used to produce lower thickness sliding plate flanges and blind flanges. All plates purchased are accompanied by a test certificate to German Standards. The circles are cut from the plates. No heat treatment is involved in the flange manufacturing process. Drilling and machining is carried out on the circles to obtain the required dimensions. The goods are visually inspected and marked in accordance with the relevant standards.

Marking of DIN Flanges

DIN flanges are typically marked with a number that indicates the flange size, pressure rating, and material. The number is typically stamped or engraved on the flange itself. For example, a DIN flange marked with the number “PN 10” indicates that it is a flange with a pressure rating of 10 bar and is made of stainless steel. In addition to the flange number, DIN flanges may also be marked with other information, such as the manufacturer’s name or logo, the date of manufacture, and the pressure and temperature ratings. This information can be useful for identifying and verifying the flange, as well as for ensuring that it is suitable for the intended application.

Packing of DIN Flanges

To properly pack DIN flanges for shipping or storage, it is important to ensure that they are protected from damage. This can be done by using appropriate packaging materials, such as bubble wrap, foam, or other protective material, to cushion the flanges and prevent them from being damaged during transport. The flanges should also be properly secured in the packaging to prevent them from shifting or moving around. It may also be necessary to label the packaging with the appropriate information, such as the type and size of the flange, to ensure that they can be easily identified and handled properly.

Inspection and measurement of DIN Flanges

To inspect and measure these flanges, proper tools and equipment are required. A common method of measuring DIN flanges is to use calipers or micrometers to measure the external and internal dimensions of the flange, including the diameter of the bolt holes and the total thickness of the flange. You can also use a thread gauge to check the threads on the bolt holes to make sure they are the correct size and pitch. In addition to these measurements, the flange must be inspected for any visible defects such as cracks, chips or other damage. This can be done either by visual inspection or by using non-destructive testing methods such as radiography or ultrasonic testing. Overall, the inspection and measurement of DIN flanges is an important step in ensuring that these components are of high quality and suitable for a variety of applications.

Application of DIN Flanges

German standard flanges are known to deliver exceptional performance and are generally developed for meeting the demands. We oer a broad range of DIN Flanges through a worldwide network of stock-keeping branches. These british dtandard flange is use in various industries like:

• Stainless Steel German Standard Flange uses in Oil and Gas Pipeline;
• German Standard Flange uses in Chemical Industry;
• Alloy Steel German Standard Flange uses in Plumbing;
• German Standard Flange uses in Heating;
• German Standard Pipe Flange uses in Water Supply Systems;
• German Standard Flange uses in Power Plant;
• German Standard Flange uses in Paper & Pulp Industry;
• German Standard Flange uses in General Purpose Applications;
• Steel German Standard Flange uses in Fabrication Industry;
• German Standard Flange uses in Food Processing Industry;
• German Standard Flange uses in Structural Pipe.

How to purchase the correct DIN flanges?

When purchasing DIN flanges, it is important to make sure that you are purchasing the right size and type of flange for your application. Here are some steps you can follow to ensure you get the right DIN flange. Determine the size and type of flange you need. DIN flanges come in a variety of sizes and types, so you need to know the specific size and type required for your application. Measure the pipe or other fitting to which the flange will be connected and make sure the flange you purchase is the right size for the pipe or fitting. The pressure rating of the flange, based on the pressure of the fluid or gas flowing through the pipe. Choose the right type of flange for your application. there are different types of DIN flanges, such as threaded flanges, welded flanges or slip-on flanges, each with its own specific application. Consider the material of the flange. din flanges can be made of different materials such as carbon steel, stainless steel or other alloys. Consider factors such as strength, corrosion resistance and cost, and choose the material that best suits your application. Check the specifications of the flange to ensure it meets your requirements. din flanges have specific technical specifications, such as pressure ratings and temperature ratings, that you need to consider before purchasing. Make sure you buy from a reputable supplier. the quality of DIN flanges can vary, so it is important to buy flanges from a supplier with a good reputation. By following these steps, you can ensure that you are purchasing the correct DIN flange for your application.

How to select DIN flanges manufacturer?

Choosing a DIN flange manufacturer can be a tricky task, as there are many different manufacturers on the market, all with their own strengths and weaknesses. There are several key factors to consider when choosing a DIN flange manufacturer.DIN flanges are an important part of many industrial and manufacturing processes, so it is vital that you choose a manufacturer that can provide a quality product that meets your specific needs. The following are some tips to help you choose the right DIN flange manufacturer. Consider a manufacturer with guaranteed quality DIN flanges: The quality of DIN flanges is essential to ensure that they perform as expected and will last for a long time. Look for a manufacturer that has a proven track record of producing high quality DIN flanges. This can be determined by looking at customer reviews and checking industry certifications such as ISO 9001. Consider the manufacturer’s reputation: The first thing to consider when choosing a DIN flange manufacturer is its reputation in the industry. Look for a manufacturer that has a proven track record of producing high-quality products and delivering them on time. You can seek advice from other industry professionals or check online reviews to see what other customers think of the manufacturer. Consider the manufacturer’s experience: Experience is another important factor to consider when choosing a DIN flange manufacturer. A manufacturer with a long history in the industry may have a better understanding of the unique challenges and requirements of DIN flanges and be able to provide the expertise and support needed to ensure a successful project. Consider the manufacturer’s capabilities: It is important to select a manufacturer that is capable of producing the specific type of DIN flange required. This means looking at the types of flanges the manufacturer offers, as well as the materials and finishes they are available in. Make sure the manufacturer is capable of producing flanges in the size and quantity you require, and that they have the necessary certifications and approvals to ensure the quality of their products. Consider the manufacturer’s customer service: The quality of customer service offered by DIN flange manufacturers is also an important factor to consider. Look for a manufacturer that is responsive, easy to work with, and provides the support and guidance you need throughout the process. A manufacturer with a dedicated customer service team may be a valuable resource when it comes to answering any questions or concerns you may have about the flange you are ordering. Consider the manufacturer’s pricing: Of course, price is also an important factor to consider when choosing a DIN flange manufacturer. It is important to balance the need for a quality product with the need to stay within your budget. Look for a manufacturer that offers competitive pricing without sacrificing quality. Get quotes from multiple manufacturers to compare prices and ensure you get the best price. Consider the manufacturer’s location: Consider the manufacturer’s location as it relates to your business. If you need DIN flanges installed quickly, it is best to choose a local manufacturer. However, if you are willing to wait for delivery, a manufacturer located in a different region or country may offer a better price or higher quality product. Consider a manufacturer’s custom service: Some manufacturers offer the ability to customize DIN flanges to meet your specific needs. If you need specific dimensions or features, choose a manufacturer that can meet your requirements. In short, choosing a DIN flange manufacturer is an important decision that will have a significant impact on the performance and reliability of your equipment. By conducting thorough research and considering a manufacturer’s track record, customer service, technical capabilities, pricing and delivery options, you can make an informed decision and select a manufacturer that will provide the best value and quality for your investment.

Export Country For DIN Flanges