What To Look For in Pipe Flanges

Pipe flanges are critical components of pipeline systems, joining pipes, valves, and other equipment to allow for the seamless conveyance of fluids. However, choosing the ideal pipe flanges may be challenging. For instance, they must be picked based on various parameters to guarantee they are appropriate for the intended purpose.

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Pay attention to the following considerations when selecting pipe flanges to guarantee the secure and reliable operation of your pipeline system:

1. Material

   Pipe flanges can be made from carbon steel, stainless steel, and alloy steel. The material of the pipe flange is critical because it must be compatible with the fluid being conveyed. The same applies to the temperature and the environment in which it will be used.

2. Size

   Selecting the right size for pipe flanges guarantees an ideal fit and prevents leaks. To achieve this, match the inside diameter to the pipes it connects.

3. Pressure Rating

   The pressure rating indicates the maximum pressure the flange can sustain without failing. Therefore, selecting a flange with a pressure rating corresponding to the fluid’s pressure is critical.

4. Face Type

   The face type determines how the flange will seal with the gasket. Pipe flanges come in different face types, including flat face, raised face, and ring-type joint. The flat face flange is suitable for low-pressure applications, while the raised face flange is suitable for high-pressure applications. The ring-type joint flange is used in extremely high-pressure applications.

5. Connection Type

   The connection type of the flange must match the connection type of the equipment it will be used to connect. The most common connection types include the following:

   Slip-On Flange
   Slip-on flanges are a type of flange that is slid over the end of a pipe and then welded in place. They are commonly used in low-pressure applications.

   Weld-Neck Flange
   This flange has a long, tapered hub welded to the pipe to reduce stress at the base of the flange. It is commonly used in high-pressure applications.

   Blind Flange
   Blind flanges are a type of flange that is used to seal off the end of a piping system. They have no opening and block the flow of fluid.

   Lap Joint Flange
   Lap joint flanges are used in systems where frequent dismantling is required. They consist of a flat face with a radius edge that fits against a matching flange and is held in place with bolts.

   Threaded Flange
   This flange has internal threads that allow it to be screwed onto the end of a pipe.

   Socket Weld Flange
   Socket weld flanges fit around the pipe and are welded in place using a fillet weld. They are commonly used in small-bore piping systems.

6. Standards and Certifications

   When selecting pipe flanges, it’s important to consider if they meet the necessary standards and certifications for the intended application. These may include ASME B16.5, ASME B16.47, AWWAC207 and API 6A. Flanges may also require specific certifications, such as ASTM or ASNT. Meeting the required standards and certifications is crucial for ensuring the safety and reliability of the pipeline system.

Coastal Flange: Your Reliable Source of Quality Pipe Flanges

Looking for high-quality pipe flanges that meet your specific requirements and ensure your pipeline system’s safe and reliable operation? Coastal Flange is a perfect choice!

We are the leading manufacturer and distributor of pipe flanges with over 100 years of experience in the industry. Further, we specialize in producing and supplying pipe flanges from ½” through 200”OD, with a focus on meeting the highest industry standards and certifications.

At Coastal Flange, we are committed to providing our customers with the highest quality products and services! Contact us to learn more, or request a quote to partner with us today.