Slip-on flanges are one of the most widely used types of flanges in various piping systems. Known for their versatility and ease of installation, these flanges are designed to slip over the end of a pipe and are typically welded in place. This design provides a secure connection between the pipe and the flange, ensuring that fluid or gas flow remains consistent and safe. As a reputable slip-on flange and forged flanges manufacturer, BFN Forgings offers high-quality products that meet the diverse needs of industries requiring reliable piping solutions.
What are Slip-on Flanges?
Slip-on flanges, also referred to as “hubbed flanges,” include a highly low-profile hub. Although it is feasible to utilize just one fillet weld, this sort of flange is often attached to a pipe by one or two fillet welds (one within the flange and one outside the flange). Slip-on flanges are commonly used in lower-pressure applications (ASME class < 600) and come in a variety of sizes.
Because a slip-on flange’s bore size (internal diameter) is greater than the connected pipe’s, it can slide or slip onto the pipe. Because there isn’t a full penetration weld between the pipe and the flange, the weld integrity is reduced, which limits the application.
The main characteristics of the slip-on flange
Easy installation and inexpensive material costs are two of the benefits of slip-on flanges. These flanges have the extra benefit of being able to be employed as lap-joint flanges in situations where Type B or Type C ends are being handled. There are several different low-pressure versions and sizes available. This flange requires double welding as it lacks a neck that may rest on the pipe, in contrast to welding neck flanges.
How are Slip-on Flanges Used?
A slip-on flange is a circular metal component that has been welded to the end of a pipeline. A slip on flange is commonly referred to as a “Slip-on hub”. This flange’s outer diameter (OD) tapers down to fit tightly against another mating part, such as an elbow or tee fitting, while its inner face fits flush with the pipe’s OD. To secure this slip-on flange in place, it is pressed up against the matching component and bolted down. Tightening the bolts causes the gasket between them to compress, expelling any air or debris that could have been sucked into the pipe system during installation.
The most common applications for slip-on flanges are low-pressure systems, which include steam, natural gas, and potable water. The flange must be on a pipe that has been put horizontally through the top of whatever it goes through, such as a roof or flooring. If your elbow, tee, or other fitting is not on a straight length of pipe, where you install it will determine where you need to place the slip-on flange.
Selecting the Ideal Manufacturer
When picking a slip-on flange manufacturer or a forged flanges manufacturer, it’s crucial to find one that provides the highest quality standards in forging. A reputable brand in the field, BFN Forgings provides precisely constructed flanges that satisfy demanding international requirements. Being a top producer of forged flanges, BFN guarantees the robustness, dependability, and constant performance of all of its products, which makes them a great option for the requirements of your project.
