Different Types of Flanges Used in Piping Applications
If you’re looking for a flange or Pipe pile that’s right for your piping application, then you’ve come to the right place. Here, you’ll learn the differences between Slip-on and threaded flanges, as well as the benefits of each. There are many benefits to using these types, and we’ll go over some of the most common ones. Read on to learn about the various types of flanges used in piping applications.
Orifice Flanges
Orifice flanges are used for a variety of piping applications. The basic design of an orifice flange is a circular plate with a small hole at its center. Two pressure tap holes are drilled into each flange to measure the pressure that is created inside the pipe. The orifice flanges are separated from the pipe with the help of an additional bolt that serves as a jack.
Orifice flanges are designed to fit orifice meters. This design allows them to measure flow rate in liquids and gases. They also include a pair of pressure tappings on each orifice plate, eliminating the need for separate carriers and tappings in the pipe wall. These flanges typically feature Raised Faces and are a popular option for measuring flow rates.
An orifice flange can be made from a variety of materials and is manufactured to meet specific requirements for different piping applications. The main differences between a 150-pound and a 600-pound flange are the number of bolts and the outer diameter. They can also be made from a variety of materials, including carbon steel, and have different sizes. If you need a flange with a high density, you’ll need to check a few specifications before deciding on one.
Orifice flanges are often used in piping applications because of their high strength and durability. Flanges must be installed according to the application specifications for proper safety. An example of a flange installation failure occurred in 2002 in Danville, Michigan, after a pipeline operator failed to properly seal a flange gasket during construction. This led to a pipeline shutdown of five days and additional costs of over $35 million. This case also prompted a major investigation and remediation effort.
Orifice flanges have two basic types: tongue and groove and orifice flange. A tongue and groove flange is used when the flange’s face and its interior diameter are similar. A scarf flange is used when the two are incompatible because it is designed to hold the gasket in place. Both of these flange types are made of high-quality materials.
Square Flanges
One type of square flange is called the LSA. These flanges are blind, which means that they have an internal flow in an L shape. They are typically used for pressure testing fluids and are often used at the termination of hydraulic systems. They have a pressure rating of 350 kilograms per square meter and are commonly used in high-pressure hydraulic applications. A special torque range is required for the installation of square flanges.
There are three main types of square flanges: SHAB, LSA, and SSAB. A SHAB is smaller than an SSAB. An LSA is used on the ring side and has an L-shaped internal flow. Square flanges are available in carbon steel, stainless steel, and alloy steel. They can be stamped with yellow, black, zinc, or oil-based markings. Payment terms for flanges are usually T/T before shipment or L/C at sight.
Before installing square flanges in piping applications, a technician should perform a flange balance check by using four points perpendicular to each other. The inner and outer edges of each point should be 90 degrees apart. Vernier calipers can be used to check the parallelism of flanges. This step is critical for the integrity of a flange. Heat treatment eliminates stress and makes it equal in density.
When choosing square flanges, look for the materials they’re made of. Stainless steel is preferred over carbon steel because of its high resistance to corrosion and ability to withstand high temperatures. It also has a higher life expectancy and helps prevent corrosion problems caused by chemical interaction and environmental changes. Carbon steel, on the other hand, is more affordable and has enhanced hardness and strength. Carbon steel is the most commonly used steel for square flanges in piping applications.
In piping applications, square flanges are typically made to JIS B2291 and JIS F7806 standards. They are designed to link two or more pipes that have the same nominal bore size. Most square flanges are manufactured of steel and stainless steel, with each component part, labeled either A or B. Square flanges are used in steam lines and hydraulic systems. There are several different configurations of square flanges.
Threaded Flanges
There are two basic types of threaded flanges: normal and raised face. The latter is characterized by a metal ring that replaces the lens pad. Both types are compatible with a wide range of gaskets. They are typically used with small-diameter piping. The raised face type is a common choice in piping applications because of its high-pressure capabilities and compatibility with a variety of gaskets.
Another advantage of threaded flanges is that they can be threaded onto a pipe without welding. This is an important benefit, especially in explosive environments where a flange with a welded connection could ignite. Threaded flanges are also easier to assemble than welded flanges. However, threaded flanges may not be suitable for all types of piping applications.
The most common type of flanges is made of carbon steel. Other common grades are alloy steel, stainless steel, and duplex/super duplex steel. Some industries, such as the petrochemical industry, use nickel alloy grades, but carbon steel is the most common. These flanges are available in a wide variety of sizes and materials. They can be made of carbon steel, stainless steel, or nickel.
Threaded flanges are similar to slip-on flanges in that they have a threaded bore. They can also be connected with a seal weld. These flanges are generally low-cost and are best used for piping with small bores. Despite being low-cost, they are often incompatible with high-pressure or high-temperature applications.
Lap-jointed flanges are another common type. This type is used on stub ends of a pipe. The pipe slides over the flange, which seats on the back of the stub end. A bolt holding the two parts together is used to tighten the connection. There are also a number of variations of lap joint flanges, each with its own advantages.
Despite the fact that threaded flanges are relatively common in piping applications, the differences between them are important. Depending on the type of piping and its fluid, you may require special controls. When piping is connected, threaded flanges are the most common. They allow a leak-free connection, which makes them a preferred choice in piping applications.
Slip-on Flanges
Slip-on flanges are used in piping applications and are designed for use in various types of piping systems. They provide smoothbores and are ideal for piping systems that handle high pressure and the flow of fluids. They are designed in standard sizes, with dimensions and ratings set by the American Society of Mechanical Engineers (ASME). Other common world standards include DIN for Europe and JIS for Japan and Korea. In choosing the right slip-on flange for a particular application, it is important to consider the outside diameter, thickness, and bore circle diameter of the pipe.
Slip-on flanges can be used in a variety of piping applications. They are commonly used in applications where there is low pressure and high pressure. The ASME B16.5 Code sets the weight class and design for slip-on flanges and restricts their use to 1500# and 2500#. Slip-on flanges are available in flat-face and raised-face designs and have a variety of connection options. Slip-on flanges are ideal for piping systems that must maintain a steady stream of steam or cool water.
The flanges are installed on the pipe to maintain the correct specifications. They can be screwed, welded, or threaded. They are best suited for low-pressure fluids and are often used on cooling water, firefighting water, and compressed airlines. Depending on the type of application, slip-on flanges can be installed in small or large diameters.
Another type of slip-on flange is called the weld-neck flange. Its hub gradually tapers towards the pipe’s surface. This type of flange is welded to the pipe and provides increased strength under variable forces. They are commonly used in lower pressure applications and are also known as “ring style” flanges. In addition to the weld-neck, socket weld flanges have a high degree of fatigue strength and are used on smaller pipe sizes.
In addition to the slip-on flange, you can also select a lap joint flange. It is used on piping with lapped or lap joint stub ends. Lap joint flanges can rotate on the pipe to make it easy to align the bolt holes. This type is ideal for systems that require frequent disassembly and re-installation.