How does weldolet fit on a pipe?
How are they installed? Quite easily: on one side, the fittings (example a Weldolet) is fixed onto the run pipe with a full penetration groove weld and, on the other side, welded (or screwed) on the branch pipe.
What is the difference between Sockolet and weldolet?
A sockolet has the same basic design as a “weldolet” or “threadolet” where the major difference is that a sockolet has a socket for welding while the weldolet has got a buttweld connection. This makes a 90° branch and comes in full size or reducing for a straight piece of pipe.
How do you specify a weldolet?
A weldolet is designated by the run length by the branch length. For example a 6-inch weldolet on a 10-inch pipe would be a 10×6 Weldolet. A weldolet is designed to minimize stress concentrations and provide integral reinforcement without the need for reinforcing the weld.
What is the difference between socket weld and butt-weld?
Socket weld (the fillet weld) resists around 1/2 the strength of butt welding. So it is mainly used for small pipeline (Small Bore Piping) with diameters NPS 2 or smaller. Butt weld keeps better strength, good for high pressure or high temperature pipelines.
What type of weld is a weldolet?
Weldolet® is the most common of all branch connections, and is welded onto the outlet pipe. The ends are bevelled to facilitate this process, and therefore the weldolet is considered a butt-weld fitting. Weldolet’s are designed to minimize stress concentrations and provide integral reinforcement.
What is the difference between stub in and stub on branches?
As explained above, Stub-in is used when the run pipe and branch pipe has a difference of more than one size. On the contrary, Stub-on pipe branch connection is applicable when the branch pipe isequal to run pipe only only one size lower than the header pipe.
Where is weldolet used?
Weldolets are used to provide an outlet area from a larger to a smaller pipe connection point. The weldolet is welded to the larger pipe (the run) and connected to the smaller pipe (the branch).
What is a weldolet connection?
A weldolet is a branch butt-weld connection fitting that is adhered to an outlet pipe to minimize stress concentrations in the piping area.
How much welding is needed for a socket weld?
It is not uncommon in the power plants, mainly nuclear, to use a 2 x 1 fillet profile to reduce the chance of fatigue failure. The leg on the socket is made to 1.09t or 1.4t, whichever is applicable, and the leg on the pipe is twice the size of the other leg.
Is weldolet a butt-weld?
Weldolet is the most common of all branch connections, and is welded onto the outlet pipe. The ends are bevelled to facilitate this process, and therefore the weldolet is considered a butt-weld fitting.
Why is excessive weld reinforcement bad?
Excess Reinforcement Or Penetration For fillets – is excess weld metal above the specified fillet size including throat thickness. Excess reinforcement/penetration can be caused by excessive current, too slow travel speeds and incorrect joint fit-up.