To connect two pipes, a pipe flange is a mechanical device. It may be weld to a pipe or other buttweld fittings in the form of a welding neck. A companion pipe is use to screw the threaded flange or flange collar onto the forged stainless steel flanges. Stub end connections may be made using a lap joint or the usual slip-on and socket weld procedures.
Slip-on flanges are prefer by users who seek flanges that are simple to use, require little or no installation time, and are inexpensive.
These flanges may also be use for noncritical low-pressure services like firewater and cooling water since their strength is roughly 1/3 lower than that of a weld neck flange, depending on the assembly. This makes them ideal for non-challenging piping. The flange hub and bore are attached to the pipe through welding.
Magnetic particles, optical tests, or PT tests may all be use to verify the integrity of the slip-on connection. Slip-on flanges, which are available in a range of diameters larger than NPS 12, may be use (DN 15).
In High-Pressure Socket
Socket weld flanges are ideal when space is at a premium in high-pressure pipes below 2 inches (DN50). The pipe to the hub of the socket weld flange may be strengthened by filleting welding. A radiographic assessment of the fillet weld is difficult to do, thus a good welding flange experience is essential. To determine the strength of a magnetic or penetrating particle connection, however, more than a visual inspection is required if the connection is significant on forged fittings manufacturers.
High-Cost Material Pipelines – Lap Joint Flange
Pipelines made of expensive metals like stainless steel and nickel alloys benefit greatly from the performance of lap joint connections. It significantly lowers the overall cost of all needed flanged connections. To create a lap joint connection, we solder the pipe’s stub end to the backing or lapped flanges. For a good welded connection at a cheaper cost, you may utilize a stainless steel stub end and a carbon steel lap joint flange. As steel prices grow more volatile, this is becoming a more popular option.
Setting up Weld Flange
- The weld-neck flanges have a tapered hub. It has a butt weld end and may use with butt weld pipes and fittings.
- Ultrasound radiography or visual inspection may use to determine the quality of the weld. In terms of fatigue and mechanical stress, weld neck forged fittings manufacturers and pipe flanges are excellent.
- Flange joint sealing should only performed by trained professionals. It aids in the prevention of pipeline breaches that might be fatal.
- When using steel pipes for the first time, an engineer who has been adequately educated must the one to connect them and reference the necessary bolt torque data.
For multi-stage pipe assemblies, steel pipe flanges are frequently the best choice. However, the material grade is also important to take into consideration For flange fittings in the gas and oil sector, stainless steel is an ideal option since it is corrosion-resistant, robust, and strong. Contact Texas Flange for more information on steel pipe flanges.
Read More: Tips for Seamless Pipes Fire Fighting