Blog

The characteristics of ASTM A182 F5 flange The ASTM A182 F5 Flange is constructed of chromium molybdenum steel. It is lightweight and has a high rupture resistance. It is also resistant to hydrogen attack and cracking caused by sulfide corrosion. The material Alloy Steel ASTM A182 F5 Flanges is widely used in the petrochemical and power generation industries. These flanges are widely used in a variety of industries such as power generation, gas processing, oil drilling, pharmaceuticals, and seawater equipment.   Slip-on and threaded ASTM A182 F5 Flanges are also available. Flanges made of alloy steel grade F5 and alloy steel grade F9 are suitable for high temperatures and pressure. These flanges are built to withstand high pressures and are made from high-quality raw materials. As a result, they are the preferred option for any industrial project.     ASTM A182 F5 Flanges chemical composition and mechanical properties The ASTM A182 F5 specification covers requirements for F5 alloy steel forgings and forged products such as chemical composition, mechanical properties, heat treatment, and other supplementary requirements.     ASTM A182 F5 flange usage range ASTM A182 F5 Flanges are available in nominal bore sizes ranging from 1/2-inch to 36-inch. They come in a variety of pressure ratings and are typically used in smaller piping systems. They are also used in high-risk environments where welding connections would be hazardous. Look no further than our ASTM A182 F5 Flange if you need high-quality flanges.     ASTM A182 F5 Weld-neck Flanges are used in industrial, high-pressure applications such as condensers, boilers, evaporators, heat exchangers, and so on. Also, Wuxi changrun offer a wide range of Alloy Steel ASTM A182 F5 Flanges such as ASTM A182 F5 Slip On Flanges, Alloy Steel F5 Weld Neck Flanges, F5 Alloy Steel Socket Weld Flanges, A182 F5 Alloy Steel Blind Flanges, Alloy Steel F5 Orifice Flanges, A182 Alloy Steel F5 Spectacle Blind Flanges, A182 F5 Screwed / Threaded Flanges, Alloy Steel F5 Reducing Flanges, ASTM A182 F5 Alloy Steel Ring Type Joint Flanges (RTJ), etc.      Wuxi Changrun has provided high-quality tube sheets, nozzles, flanges, and customized forgings for heat exchangers, boilers, pressure vessels, etc. to many well-known petrochemical enterprises at home and abroad. Our customers include PetroChina, Sinopec, Chevron, Bayer, Shell, BASF, etc. Send your drawings to sales@wuxichangrun.com. We will provide you with the best quotation and the highest quality products.    

What is heat exchanger baffle? A heat exchanger baffle is a plate or barrier that is inserted into a heat exchanger to enhance heat transfer efficiency. The primary function of a baffle is to direct the flow of fluid inside the heat exchanger in a specific pattern, such as cross-flow or counter-flow, to maximize heat transfer.   Baffles are commonly used in shell and tube heat exchangers, which consist of a bundle of tubes enclosed in a shell. The baffles are placed inside the shell, perpendicular to the tube bundle, and divide the shell into several chambers. The fluid flows through the tubes and is directed by the baffles through each chamber, which increases the time the fluid spends in contact with the tube surface, thereby enhancing heat transfer efficiency.       The types of baffle plates The design and placement of baffles in a heat exchanger depend on the specific application requirements, including the type of fluid being heated or cooled, the flow rate, temperature, and pressure, and the desired heat transfer rate. The size, shape, and thickness of the baffles may also vary depending on the application. The baffle plate is installed on the shell side, which can not only improve heat transfer efficiency but also play a role in supporting the tube bundle. There are two types of baffles: arched and disc-shaped. Arched baffles are available in three types: single arched, double arched, and triple arched.     What is the function of a baffle? 1. Extend the flow channel length of the shell side medium, increase the flow velocity between tubes, increase the degree of turbulence, and achieve the goal of improving the heat transfer efficiency of the heat exchanger.   2. Setting baffle plates has a certain supporting effect on the heat exchange tubes of horizontal heat exchangers. When the heat exchange tube is too long and the pressure stress borne by the tube is too high, increasing the number of baffle plates and reducing the spacing between baffle plates while meeting the allowable pressure drop of the heat exchanger tube side can play a certain role in alleviating the stress situation of the heat exchange tube and preventing fluid flow induced vibration.   3. Setting baffle plates is beneficial for the installation of heat exchange tubes.       Heat exchange baffles can be made of various materials, such as stainless steel baffle plates, carbon steel baffle plates, or titanium baffle plates, depending on the corrosive or erosive nature of the fluid being processed. In some cases, baffles may also have holes or slots to allow for more fluid flow and heat transfer.   Wuxi Changrun has provided high-quality baffle plate, tube sheets, nozzles, flanges, and customized forgings for heat exchangers, boilers, pressure vessels, etc. to many well-known petrochemical enterprises at home and abroad. Our customers include PetroChina, Sinopec, Chevron, Bayer, Shell, BASF, etc. Send your drawings to sales@wuxichangrun.com We will provide you with the best quotation and the highest quality products.  

What are the tube sheet inspection and testing methods? Tube sheet inspection and testing methods are used to ensure the integrity and safety of tube sheets, which are components used in heat exchangers and other types of equipment. There are several methods used for tube sheet inspection and testing, including:   Visual Inspection This is the simplest method of tube sheet inspection, which involves a visual examination of the tube sheet surface for any visible cracks, corrosion, erosion or other signs of damage.   Dye Penetrant Test (PT) This method involves applying a dye penetrant to the surface of the tube sheet and then wiping off the excess. The penetrant is then drawn into any cracks or other surface defects by capillary action. A developer is applied, which draws the penetrant out of the cracks and makes them visible.   Magnetic Particle Test (MT) This method involves applying a magnetic field to the tube sheet and then applying ferromagnetic particles to the surface. Any surface cracks or defects will cause the magnetic field to be distorted, making the particles cluster at the location of the defect, which can then be visually detected.   Ultrasonic Testing (UT) This method uses high-frequency sound waves to detect defects in the tube sheet. A probe is placed on the surface of the tube sheet, which emits sound waves that travel through the material. Any defects in the material will cause some of the sound waves to be reflected back to the probe, which can be detected and analyzed.   Eddy Current Testing (ECT) This method involves passing an alternating electrical current through a coil, which induces eddy currents in the tube sheet. Any defects in the material will cause changes in the eddy currents, which can be detected and analyzed.   These methods can be used individually or in combination to provide a comprehensive inspection and testing of tube sheets. The choice of method(s) used will depend on the type of equipment, the material of the tube sheet, and the level of sensitivity required for defect detection.   Wuxi Changrun has provided high-quality tube sheets, nozzles, flanges, and customized forgings for heat exchangers, boilers, pressure vessels, etc. to many well-known petrochemical enterprises at home and abroad. Our customers include PetroChina, Sinopec, Chevron, Bayer, Shell, BASF, etc. Send your drawings to sales@wuxichangrun.com We will provide you with the best quotation and the highest quality products.    

What is double tube sheet? A double tube sheet is a design feature commonly used in shell-and-tube heat exchangers and other similar equipment. In a shell-and-tube heat exchanger, there are two main components: the shell, which is a large outer vessel, and the tubes, which are smaller tubes that run through the shell. The double tube sheet design involves having two separate tube sheets within the shell.     Double tube sheet heat exchangers are generally used in the following two situations: One is to absolutely prevent the mixing of media between the shell and tube sides. For example, for heat exchangers with water passing through the shell side or chlorine gas or chloride passing through the tube side, if the water in the shell side comes into contact with chlorine gas or chloride in the tube side, it will produce highly corrosive hydrochloric acid or hypochlorous acid, which will cause serious corrosion to the material in the tube side. Adopting a double tube sheet structure can effectively prevent the mixing of two materials, thereby preventing the occurrence of the above-mentioned accidents;   Another scenario is when there is a large pressure difference between the medium on the tube and shell side. In this case, a medium is usually added to the cavity between the inner and outer tube sheets to reduce the pressure difference between the medium on the tube and shell side. This series of heat exchangers adopts a double tube plate structure design, which connects the tube side and shell side with their respective tube sheets, breaking the traditional practice of using the same connecting tube plate for both the tube side and shell side of a row tube heat exchanger. This minimizes the risk of cross contamination, facilitates timely detection of leakage hazards, and ensures safe production for users.     How double tube sheet works? 1. Inner Tube Sheet: The first tube sheet is located inside the shell and is usually closer to one end. The tubes are attached to this inner tube sheet, and they pass through it to the other end of the shell.   2. Baffle Space: Between the inner tube sheet and the other end of the shell, there is a space that contains baffles. Baffles are plates or other structures designed to direct the flow of the fluid inside the shell and promote efficient heat transfer.   3. Outer Tube Sheet: The second tube sheet is located at the other end of the shell. The tubes are also attached to this outer tube sheet.     Whats the double tube sheet design advantages? 1. Prevents Cross-Contamination: Because there are two tube sheets, there is a space (the baffle space) between them. This helps to prevent cross-contamination between the two fluids flowing through the tubes, especially when they have different properties.   2. Enhanced Safety: In applications where one fluid is hazardous or toxic, the double tube sheet design provides an extra layer of safety by reducing the risk of leaks.   3. Reduced Risk of Thermal Expansion Issues: The double tube sheet design helps accommodate thermal expansion differences between the tubes and the shell. This is important to avoid problems that may arise from temperature-induced expansion and contraction.   4. Easier Inspection: The space between the tube sheets allows for easier inspection of the tubes and facilitates maintenance activities.     In summary, a double tube sheet design is a configuration used to enhance the safety, efficiency, and ease of maintenance in certain types of heat exchangers, particularly those dealing with potentially hazardous fluids.   Wuxi Changrun has provided high-quality tube sheets, nozzles, flanges, and customized forgings for heat exchangers, boilers, pressure vessels, etc. to many well-known petrochemical enterprises at home and abroad. Our customers include PetroChina, Sinopec, Chevron, Bayer, Shell, BASF, etc. Send your drawings to sales@wuxichangrun.com We will provide you with the best quotation and the highest quality products.    

A shell and tube heat exchanger consists of a shell, heat transfer tube bundle, tube sheet, baffle plate (baffle), and channel. The shell is mostly cylindrical with a tube bundle inside, and the two ends of the tube bundle are fixed on the tubesheet. There are two types of heat transfer fluids: hot fluid and cold fluid. One is the fluid inside the tube, called the tube side fluid; Another type is the fluid outside the pipe, called the shell side fluid.     1. What is Shell? The shell serves as the outer housing of the heat exchanger. It contains one of the fluid streams and is typically constructed from materials such as carbon steel, stainless steel, or other alloys depending on the application and operating conditions.   2. What is Tube Bundle? The tube bundle is the core component of the heat exchanger where heat transfer occurs. It consists of a series of tubes through which one fluid flows while the other fluid flows around the outside of the tubes. The tubes can be straight or bent, and they are usually made of materials such as copper, stainless steel, or titanium.   3. What is Tubesheet? The tubesheet is a thick metal plate located at both ends of the tube bundle. It serves to support and secure the tubes in place, providing a leak-proof seal between the tube bundle and the shell.   4. What are Baffles? Baffles are plates or spacers placed inside the shell to direct the flow of the shell-side fluid. They promote turbulence in the fluid flow, which enhances heat transfer efficiency by increasing the mixing of the fluid. Baffles also help to support the tubes and prevent vibration.   5. What is Baffle Plate? The baffle plate is a large plate attached to the inner wall of the shell. It supports the baffles and helps to guide the flow of the shell-side fluid through the heat exchanger.   6. What is Front Channel and Rear Channel? These are the spaces between the baffles where the shell-side fluid flows around the tube bundle. The front channel is located near the inlet of the shell-side fluid, while the rear channel is located near the outlet.   7. What is Tube Side Connection? These are the inlet and outlet connections for the fluid flowing through the tubes. They allow the tube-side fluid to enter and exit the heat exchanger.   8. What is Shell Side Connection? These are the inlet and outlet connections for the fluid flowing around the outside of the tubes. They allow the shell-side fluid to enter and exit the heat exchanger.   9. What is Vent? The vent is an opening on the shell of the heat exchanger used to remove trapped air or gases during startup or operation. It ensures proper operation and prevents air pockets from interfering with heat transfer.   10. What is Drain? The drain is an opening on the shell or tubesheet used to remove liquid from the heat exchanger. It is typically used for maintenance purposes or for draining the system during shutdowns.   11. What is Expansion Joint? An expansion joint is a flexible element installed in the shell or tube bundle to accommodate thermal expansion and contraction. It prevents damage to the heat exchanger caused by temperature fluctuations.   12. What are Heat Exchanger Legs? Legs are support structures attached to the bottom of the heat exchanger to elevate it above the ground or other surfaces. They provide stability and facilitate installation and maintenance.   13. Lifting Lug? Lifting lugs are welded to the shell of the heat exchanger and used for lifting and handling during installation or maintenance.   14. Reinforcing Pad? Reinforcing pads are additional material welded to the shell or other components to strengthen areas subjected to high stress or pressure, such as nozzle connections.   These components work together to facilitate efficient heat transfer between the two fluid streams while ensuring structural integrity, reliability, and safety of the heat exchanger.    Wuxi Changrun has provided high-quality tube sheets, nozzles, flanges, and customized forgings for heat exchangers, boilers, pressure vessels, etc. to many well-known petrochemical enterprises at home and abroad. Our customers include PetroChina, Sinopec, Chevron, Bayer, Shell, BASF, etc. Send your drawings to sales@wuxichangrun.com We will provide you with the best quotation and the highest quality products.

Forged Carbon Steel Tube Sheet Specific Material Forged carbon steel tube sheets are typically made from carbon steel materials such as ASTM A105 tube sheets or ASTM A350 LF2 tube sheets. Carbon steel is chosen for its high strength and excellent machinability, making it suitable for high-temperature and high-pressure environments.   Forged Carbon Steel Tube Sheet Production Standards The production of forged carbon steel tube sheets typically complies with relevant standards such as ASME (American Society of Mechanical Engineers) or international standards. These standards ensure product quality and performance, including material strength, dimensional accuracy, and weldability.   Forged Carbon Steel Tube Sheet Dimensions The dimensions of forged carbon steel tube sheets depend on specific design and application requirements. Typically, the diameter and layout of tube holes, plate thickness, and overall dimensions vary based on the specifications and functions of the equipment.       Forged carbon steel tube sheets are commonly used in the following applications 1.Heat Exchangers: A heat exchanger is an equipment that utilizes the heat transfer of fluid inside the pipe for energy conversion. Carbon steel tube sheets are often used as materials for pipes and heat exchanger bundles in heat exchangers, with high corrosion resistance and pressure bearing capacity.   2.Boilers: Carbon steel tube sheet is also one of the most important materials in the manufacturing of boilers, and is generally used for the tubes and some structural components of boilers. Due to its excellent mechanical properties, strength, and high corrosion resistance, carbon steel tubesheets can ensure the safe operation of boilers.   3.Chemical Industry: In petrochemical equipment, carbon steel tube plates are often used as materials for catalyst tubes, distillation towers, reactors, and other devices. Due to its excellent corrosion resistance and reliable pressure bearing capacity, carbon steel tube plates ensure the safety of petrochemical equipment.         Forged Carbon Steel Tube Sheet Advantages 1. High Strength: Carbon steel offers excellent strength, enabling it to withstand high-temperature and high-pressure conditions. 2. Excellent Machinability: Carbon steel is easy to forge, cut, and weld, making it suitable for various complex-shaped tube sheets. 3. High-Temperature Resistance: Carbon steel tube sheets are well-suited for high-temperature environments, making them ideal for use in boilers and heat exchangers. 4. Corrosion Resistance: While susceptible to corrosion, carbon steel tube sheets can still be used in corrosive environments with proper coatings and protection.     Forged Carbon Steel Tube Sheet Processing Steps 1. Raw Material Preparation: Select suitable-quality carbon steel billets. 2. Forging: Heat the billets to the appropriate temperature and shape them through forging processes, using hammering or pressure to achieve the desired shape. 3. Machining and Hole Drilling: Cut and drill tube holes, ensuring accurate dimensions and hole positions. 4. Inspection and Quality Control: Conduct non-destructive and destructive testing to ensure that the tube sheet meets specifications and standards. 5.  Surface Treatment: Surface treatments, such as corrosion-resistant coatings, may be applied to enhance corrosion resistance.   Wuxi changrun has equipped facilities for manufacturing. Now it has five forging machines, one of which is forging machine whose capacity reaches 3600-ton, one is numerical control ring roll whose capacity reaches 6300 mm (Diameter), one is 1.5 ton hammers and the other two are 1-ton air hammers. There are 7 gas generators used for forge heating, 16 industrial resistance furnaces for heat treatment and more than 80 metal processing equipment among which there is a numeric control Standing Lathe whose processing diameter can reach 5meters. The company has an annual production capacity of 50,000 tons of middle and high-pressure flanges and various steel forgings for boilers and pressure vessels. The maximum pressure of manufactured flanges can reach 2500Lb, the maximum diameter can reach about 6 meters and the maximum weight of unit forging can reach 30 tons.       Conclusion Forged carbon steel tube sheets play a crucial role in heat exchange and heating equipment, offering strength and high-temperature resistance. Their manufacturing requires precise craftsmanship and quality assurance to ensure equipment safety and reliability.   Wuxi Changrun has provided high-quality tube sheets, nozzles, flanges, and customized forgings for heat exchangers, boilers, pressure vessels, etc. to many well-known petrochemical enterprises at home and abroad. Our customers include PetroChina, Sinopec, Chevron, Bayer, Shell, BASF, etc. Send your drawings to sales@wuxichangrun.com We will provide you with the best quotation and the highest quality products.    

Tube sheets are commonly used industrial components, widely employed in industries such as chemical, petroleum, pharmaceuticals, and food processing. Tube sheet size standards refer to the standardized size specifications used in the design and manufacturing process to ensure interchangeability and universality of various pipeline equipment. This article provides a detailed introduction to tube sheet size standards.   Tube Sheet Overview 1. Tube Sheet Definition A tube sheet is a device that connects multiple pipelines or equipment and consists of two flat surfaces, typically with numerous holes on the top surface, with each hole connecting to one or more holes on the bottom surface.   2. Tube Sheet Classification Depending on different application scenarios and functional requirements, tube sheets can be categorized into the following types: (1) Distributors: Divert one inlet into two or more outlets. (2) Collectors: Collect two or more inlets into one outlet. (3) Heat Exchangers: Achieve heat exchange through the transfer of heat between internal fluids. (4) Reactors: Complete chemical synthesis or other chemical processes through internal reactions.   Tube Sheet Size Standards 1. Tube Sheet Hole Diameter: In the design and manufacturing process, international standards like ISO/TR 10400 or ASME B16.5 are typically used as standard specifications for tube sheet hole diameters. Both of these standards specify a range of hole sizes, ranging from 1/2 inch to 48 inches.   2. Tube Sheet Thickness: Tube sheet thickness refers to the distance between the top and bottom surfaces of the tube sheet. In the design and manufacturing process, standards such as ASME B16.5 or GB/T 9119 are typically used as standard specifications for tube sheet thickness. These standards specify a range of thicknesses, ranging from 3 millimeters to 100 millimeters.   3. Tube Sheet Hole Spacing: Tube sheet hole spacing refers to the distance between adjacent holes. In the design and manufacturing process, standards like ASME B16.5 or GB/T 9119 are usually used as standard specifications for tube sheet hole spacing. These standards specify a range of hole spacing sizes, ranging from 15 millimeters to 600 millimeters.   4. Tube Sheet Material: Tube sheet material refers to the type and variety of materials used in manufacturing the tube sheet. In the design and manufacturing process, standards such as ASME B16.5, GB/T 9119, or JIS B2220 are typically used as standard specifications for tube sheet materials. These standards classify and specify various material types and varieties.       Frequently Asked Questions   1. What is the purpose of tube sheet size standards? The purpose of tube sheet size standards is to ensure the interchangeability and universality of various pipeline equipment, allowing pipeline equipment produced by different manufacturers to be compatible and work together.   2. What is the relationship between tube sheet hole diameter, thickness, and hole spacing? There is no direct relationship between tube sheet hole diameter, thickness, and hole spacing. Different tube sheet size standards specify different ranges of hole diameter, thickness, and hole spacing sizes, and users can choose the appropriate specifications according to their needs.   3. What are the common types of tube sheet materials? Common tube sheet materials include carbon steel, stainless steel, alloy steel, copper, aluminum, and more. Users can select the appropriate material type and variety based on their specific requirements.       Conclusion Tube sheet size standards are crucial for ensuring the interchangeability and universality of various pipeline equipment and should be strictly followed during the design and manufacturing process.    Wuxi Changrun has provided high-quality tube sheets, nozzles, flanges, and customized forgings for heat exchangers, boilers, pressure vessels, etc. to many well-known petrochemical enterprises at home and abroad. Our customers include PetroChina, Sinopec, Chevron, Bayer, Shell, BASF, etc. Send your drawings to sales@wuxichangrun.com We will provide you with the best quotation and the highest quality products.  

A CNC machined tube plate refers to a tube sheet or plate that has undergone precision machining using a Computer Numerical Control (CNC) machine.  CNC machining involves the use of computer numerical control to automate and control the movement of machining tools and equipment. This technology allows for precise and accurate shaping, cutting, and drilling of materials, including metal plates used in various applications.   Information on CNC machining tube plates 1. Tube Sheet in Heat Exchangers: In the context of heat exchangers, a tube sheet is a plate that separates the fluid in the tubes from the fluid in the shell of the heat exchanger. CNC machining can be used to create precise holes in the tube sheet for the tubes to pass through.   2. CNC Tube Cutting: This could refer to the process of using CNC machines to cut tubes into specific lengths or shapes. CNC tube cutting is commonly used in industries such as automotive, aerospace, and construction.   3. Tube Plate in Structural Engineering: In structural engineering, a tube plate might be a component used in the construction of steel structures, such as trusses or frames. CNC machining can be employed to create precise cuts and holes in these plates.     CNC machining tube plate 1. Hole Drilling: CNC machines can accurately drill holes in tube plates to accommodate tubes in heat exchangers or other systems. The hole patterns need to be precisely designed to ensure proper alignment and fit.   2. Milling and Cutting: CNC milling machines can be employed to cut and shape tube plates according to specific designs and requirements. This can include creating intricate patterns or features on the surface of the tube plate.   3. Surface Finishing: CNC machining can be used to achieve a smooth and precise finish on the surface of the tube plate. This is important for both functional and aesthetic reasons, depending on the application.   4. Customization: CNC machining allows for a high level of customization. Tube plates can be machined to exact specifications, accommodating different sizes, hole patterns, and materials based on the requirements of the specific application.     CNC machined tube plates are commonly used in the construction of heat exchangers, boilers, and similar equipment where precise alignment and secure attachment of tubes are essential for efficient heat transfer. The use of CNC machining ensures the production of high-quality, accurate, and repeatable tube plates in various industrial settings.    Relying on the top processing equipment cluster, wuxi changrun can provide multiple processes from material to cutting, beveling, welding, heat treatment, vertical turning, drilling and so on; Capable of processing tube plates and folding plates made of diversified materials such as pure titanium, stainless steel composite, high-specification stainless steel and various high-strength steels.

What is a forged tube sheet? Forging is a process of manufacturing components by plastic deformation of metal. During the forging process, the metal is pressed to the desired shape. A forged tubesheet is commonly made from a round disc forging with holes drilled to accept the tubes or pipes in an accurate location and pattern relative to one another. The advantages of forging tube sheets are high density, high strength, and good toughness. However, due to the high temperature and specialized equipment required for forging, the cost is relatively high.   A forged tube sheet is a critical component in shell-and-tube heat exchangers. It serves as a support for the heat exchanger tubes and provides a sealed barrier at the ends of the tubes to prevent leakage between the tube-side and shell-side fluids, ensure effective heat transfer or to support filter elements. In shell and tube heat exchangers, two plates support the tubes, one on each end. They are in contact with both fluids on the shell side and the tube side, so they must be corrosion resistant and sealed tightly. Many heat exchanger design codes and standards require forged tubesheets.       Forged Tube Sheet Production Standards: The production standards for forged tube sheets can vary depending on the specific industry and application. However, some common standards that may be followed include:   1.ASME (American Society of Mechanical Engineers) Standards: ASME Boiler and Pressure Vessel Code (BPVC) provides guidelines and standards for the design, fabrication, and inspection of pressure vessels, including heat exchangers. ASME standards ensure that the equipment meets safety and performance requirements.   2. ASTM (American Society for Testing and Materials) Standards: ASTM specifications provide guidelines for the materials used in the fabrication of tube sheets. Different grades of materials are specified based on factors such as temperature, pressure, and corrosion resistance.     Material of Forged Tube Sheets: The choice of material for forged tube sheets depends on the specific requirements of the application. Common the material include: carbon steel tube sheets, stainless steel tube sheets, alloy steel tube sheets. A tubesheet may be covered in a cladding material which serves as a corrosion barrier and insulator which is weld overlay tube sheets. (Know more about welding overlay tube sheet)     Forgings for manufacturing tube sheets need to meet the following performance requirements: 1. High strength: able to withstand high pressure and impact loads, ensuring the stability and safe operation of the tube sheet. 2. Good corrosion resistance: It can resist the corrosion of the medium and extend the service life of the tubesheet. 3. Good sealing: Ensure the normal operation of the tube plate and prevent medium leakage. 4. Good processability: Easy to process into complex shapes to meet the design requirements of tubesheets.     Forged tube sheets find applications in various industries, including: 1. Petrochemical Industry: For heat exchangers in refineries and chemical processing plants. 2. Power Generation: In boilers and steam generators. 3. Oil and Gas Industry: For heat exchangers in oil refineries and offshore platforms. 4. Chemical Processing: In chemical reactors and processing equipment.     Forged tube sheets are crucial components in heat exchangers, manufactured through a forging process to achieve specific mechanical properties. They adhere to industry standards and are chosen for their strength, durability, and resistance to corrosion in various industrial applications. Wuxi changrun specialized in forged tube sheet manufacture.  

What is a tube sheet for heat exchanger? One of the most common heat exchangers in service within industrial process applications is the “Tube Sheet Heat Exchangers”. They are available in many shapes, sizes and have been used in industry for over 150 years. In this exchanger group are various sub design types: Fixed, U-tube and Floating tubes heet. Variations of all can be denoted as type “E”, “F”, “G”, “H”, “J”, “K” or “X”. The main applications are where high pressure/temperatures are key considerations. Loosely, general designs consist of the/an outer shell in which resides a tube bundle (these can be configured as finned, plain etc) sealed at each end by a tube sheet which isolates the tubes and the outer shell.     How does a heat exchanger work? Tube Sheet Heat Exchangers have the capability to transfer large amounts of heat at low(er) costs. This, in principle, down to both design simplicity and effectiveness – large tube surface for reduced weight, volume of liquid and importantly floor space.   Whilst there is a wide variety to choose from there are certain key components similar in all. Tube sheets have tubes attached to them within the body or “shell” of the heat exchanger. The tubes allow the movement of a given medium (gas/fluid) through the shell chamber stopping it mixing with a second fluid medium that lies outside these tubes. As long as there is a temperature difference between these, in effect, the two flow past one another exchanging heat without ever mixing. Tube sheets can be fixed or floating dependent on the application the heat exchanger is designed for.       The role of tube sheets in heat exchangers Tube sheets are a critical component of the final design. There are a multitude of materials they can be manufactured from. Material selection is made after careful consideration as it is in contact with both fluids. It must therefore have the necessary corrosion resistance, electromechanical and metallurgical properties associated for its given working environment.   The tube sheets themselves contain holes drilled into them. This, in a given, very specific design configuration, at very precise locations with critical tolerances. The amounts of holes can range from a few to thousands. These pattern or “pitch” holes are relative to each other tube sheet within the shell. This pitch changes tube distance, angle and flow direction. These parameters have been varied to maximize the heat transfer effectiveness.   Tube Sheet Heat Exchangers of the big advantages of using a shell and tube heat exchanger is that they are often easy to service, particularly with models where a floating tube bundle where the tube plates are not welded to the outer shell is available. Fixed Tube Sheet Heat Exchangers used on fixed tube sheet heat exchangers.    Tube Sheet Heat Exchangers the right choice of materials they can also be used to cool or heat other mediums, such as swimming pool water or charge air. Fixed Tube Sheet Heat Exchangers ideal cooling solution for a wide variety of applications. One of the most common applications is the cooling of hydraulic fluid and oil in engines, transmissions and hydraulic power packs.     How does wuxi changrun work? Because these tube sheets are the main, critical，Wuxi changrun manufactures directly to OEM drawings issued as DXF files. The in house Delcam FeatureCam CAD reading capabilities mean the final product supplied from us is manufactured to the exacting specifications as designed, released and issued from you the client.   Wuxi changrun’s considerable experience in this highly specialized area means that whatever the requirement, whatever the timescale, we have the technical, in house experience and know-how to approach a given task, deliver on time and in budget. This is why the company is entrusted to manufacture to key, blue chip clients across the globe.

What are the long weld neck flanges? A long weld neck flange is a type of flange that features an extended neck or hub. It has a long, tapered neck that is welded to the pipe, providing a smooth transition between the flange and the pipe. The extended neck provides reinforcement and additional strength to the joint. The Long Weld Neck (LWN) connection is the lightest and most economical connections offered for use where a minimum of reinforcing area is required. It is the most commonly used nozzle in the ASME pressure vessel industry. A Long Weld Neck is also the lightest wall connection of the nozzle family. The nozzle that follows the Long Weld Neck with a slightly heavier wall barrel is known as the Heavy Barrel (HB).     The fuction of long weld neck flange Long weld neck flanges are commonly used in piping systems that require high-pressure and high-temperature applications. The extended neck allows for better flow characteristics, minimizing turbulence and pressure drop. It also provides additional space for insulation or corrosion-resistant coatings .Long Weld Neck connections are a crucial part of the pressure vessel industry. Welding is the most efficient and cost-effective way to connect two pieces of metal, so it is the material of choice for many industries, including petrochemical and aerospace.   The design of a long weld neck flange allows for easy welding, making it suitable for critical connections where strength, integrity, and leak-free performance are essential. The longer neck allows for a more gradual transition, reducing stress concentration and improving the overall structural integrity of the joint. Due to their robust design and superior performance, long weld neck flanges are widely used in industries such as oil and gas, petrochemical, power generation, and chemical processing. They are typically made from high-quality materials, such as carbon steel long weld neck flanges, stainless steel long weld neck flanges, or alloy steel long weld neck flanges, to ensure durability and resistance to corrosion.       A long weld neck flange is a specialized flange with an extended neck or hub. It provides strength, smooth flow characteristics, and easy welding in high-pressure and high-temperature piping systems, making it an ideal choice for critical applications.   Wuxi changrun’s product offering with a wide spectrum of ASME pressure vessel connections makes it simple on the customer, as we are capable of producing a nozzle for every application in the pressure vessel industry. Our Long Weld Neck connections are available in various seamless configurations for custom pressure vessel connections. They provide leak-free, long-term service in high-pressure environments.    

Duplex steel has become increasingly popular in industrial settings due to its unique properties, high strength, corrosion resistance, and durability. One of the most commonly used components made from duplex steel is the duplex steel elbow. This component is found in numerous industries, including oil and gas, chemical, and petrochemical manufacturing. This blog post will discuss everything you need to know about duplex steel elbows.     What is the role of elbows in pipelines?  Elbows belong to pipe fittings, and the purpose of using elbows in pipelines is to change the direction of the pipeline. Elbows are used at the turning point of the pipeline to change the direction of the pipeline. The angles of elbows include 15 degree elbows, 30 degree elbows, 45 degree elbows, 60 degree elbows, 90 degree elbows, and 180 degree elbows. The type of elbow including long-radius elbows, short-radius elbows, seamless elbows, and welded elbows. These are the most commonly used elbow angles, which need to be ordered and made according to the installation needs of the construction site project. Long and short-radius elbows differ in their radius of curvature, with long-radius elbows having a larger radius than short-radius elbows. Seamless elbows are made from a single piece of steel and are available in a wider range of sizes and wall thicknesses than welded elbows.The materials can be divided into stainless steel elbows, carbon steel elbows, alloy steel elbows, and duplex steel elbows. When connecting elbows and pipelines, welding is used. Therefore, for the convenience of welding, the ends of general elbows need to be bevelled.       Why Use Duplex Steel Elbows? Duplex steel is a type of stainless steel with a two-phase microstructure consisting of austenitic and ferritic stainless steel. This type of steel offers a unique combination of strength, corrosion resistance, and durability, making it the perfect material for industrial applications. The use of duplex steel elbows offers several advantages over other types of elbows. One of the main benefits is their excellent corrosion resistance, making them suitable for use in harsh environments such as offshore oil rigs, where exposure to seawater can cause significant damage to traditional piping systems. Duplex steel elbows are also known for their high strength, which allows them to withstand high pressure and temperature fluctuations without developing cracks or leaks.     Applications Of Duplex Steel Elbows   Duplex steel elbows are used in various industrial applications, including chemical processing, oil and gas, petrochemical manufacturing, and offshore platforms. They are also found in power generation plants, pharmaceutical manufacturing, and food processing facilities. Their durability, strength, and corrosion resistance make them suitable in environments where other materials would quickly degrade.     Conclusion Duplex steel elbows are essential to numerous industrial applications and offer many benefits over traditional piping systems. Their superior strength and corrosion resistance are ideal for harsh environments such as offshore oil rigs. Duplex steel elbows can provide long-lasting, reliable functions in various applications with regular maintenance and care. This blog post has provided valuable insights into everything you need about duplex steel elbows. Wuxi Cahngrun good at pipe fitting manufacture, choose us is one of your best choice.