A flange is a tool that connects pipes, valves, pumps, and other pieces of equipment to form a piping system. It also enables easy cleaning, inspection, and changes. Flanges are typically welded or screwed together. Flanged joints are made by bolting two flanges together and placing a gasket between them to create a shield.
Flanges are used when a piping joint needs to be dismantled. These can be found in various machines, valves, and specialty applications. Breakout flanges are routinely installed in many pipelines where maintenance is performed regularly.
Flanged joints are made up of three different but interconnected components: flanges, gaskets, and bolts. To achieve a leak-proof joint, special controls must be used to select and apply all of these components.
This guide will provide the most up-to-date information on pipe flanges and stainless steel flanges.
Pipe flanges are classified into eight types based on their design. Blind, lap joint, orifice, reducing, slip-on, socket-weld, threaded, and weld neck are some examples.
Blind flanges are round plates with no centre hole and are used to seal the ends of pipes, valves, or equipment. They help to make it easier to access a line after it has been sealed. They can also be used to test flow pressure. Blind flanges are designed to fit standard pipes of all sizes and have higher pressure ratings than other types of flanges.
Lap joint flanges are installed on piping that has lapped pipe or lap joint stubs. Even after the welds have been completed, they can rotate around the pipe to allow for easy alignment and assembly of bolt holes.
Lap joint flanges are used in systems that require frequent flange and pipe disassembly because of this advantage. They look like slip-on flanges but have a curved radius at the bore and face to adjust a lap joint stub end. Lap joint flanges have low-pressure ratings but are higher than slip-on flanges.
Slip-on flanges are designed to be welded in place after being slid over the end of the piping. They are ideal for lower-pressure applications and are simple and inexpensive to install.
Socket weld flanges are ideal for high-pressure piping that is small in size. Their construction is similar to slip-on flanges, but the internal pocket design allows for a smooth bore and improved fluid flow. When internally welded, these flanges have 50% greater fatigue strength than double-welded slip-on flanges.
Threaded flanges are pipe flanges that can be attached to the pipe without the use of welding. They are threaded in the bore to match the external threading on a pipe and tapered to seal the flange to the pipe.
Seal welds can also be used in conjunction with threaded connections to provide stable support and sealing. They work best with small pipes and low pressures and should be avoided with large loads and high torques.
Welding neck flanges are used for high-pressure applications and have a long tapered hub. The tapered hub transfers stress from the flange to the pipe and provide strength reinforcement to compensate for dishing.
Stainless Steel Flanges are used to join Pipes, Tubes, Valves, Pumps, Fittings, and other pieces of equipment to form a Piping System. Flanges also allow for easy cleaning, inspection, and modification. They are typically welded or screwed together by bolting two stainless steel flanges together with a gasket between them to provide a seal.
Our stainless steel flanges are made of 316 stainless steel. This has excellent corrosion resistance and is more vulnerable to pitting and crevice corrosion in warm chloride environments. 316 stainless steel is also naturally resistant to organic chemicals, dyes, and a wide range of inorganic chemicals.
As a result, our stainless steel flanges can be used in a number of industries. We ship our stainless steel flanges all over Australia, so browse our selection today!
To provide sufficient strength and prevent leakage, the flange is slipped over the pipe and fastened inside and outside. When stub ends are used, slip-on flanges are also used as loose backup flanges.
This flange with no centre bore is used to close a piping system or vessel opening.
To provide sufficient strength and prevent leakage, the flange is screwed into a Threaded BSP pipe or Threaded BSP Fittings.