About the Carbon Steel Fittings
In general, carbon steel pipe fittings and weldolet has not good corrosion resistance as stainless and alloy steels. The common used grade is ASTM A105 for forged carbon steel fittings. The schedule chart is STD, XS, SCH80 AND SCH160. Carbon Steel Fittings is primarily used across piping systems for its hardness, moderate to good tensile strength and inexpensiveness.
|Specification of Weldolet Fittings|
|Size Range||1/8″ – 4″ / DN6 – DN600|
|Schedule Chart||STD, XS, SCH 80, SCH 160|
|Carbon Steel||ASTM A105 / A105N|
|Low Temp Carbon Steel||ASTM A350 LF2/LF3|
|Pipeline Steel||ASTM A694 F42/46/56/60/65|
|Alloy Steel||ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / 22|
|Stainless Steel||ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317, 347, 904L|
|Duplex Stainless Steel||ASTM A182 F51, F53, F44|
The Function of Weldolet
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).
Weldolet branch connection fittings are used for a variety of metal pipes such as stainless steel, chrome-moly and several other alloys.
Pipe branch fittings are used to create integrally reinforced connections from a run pipe (header pipe) to an outlet pipe, at 45 or 90 degrees, alternatively to connections made with buttweld tees, reinforcing pads and saddles. This type of forged fittings are otherwise called “branch connections”, or “branch fittings”, or “pipe branch outlet fittings” or, simply, “Olets”.
Outlet fittings are forged products with high strength and clear cost advantages over conventional pipe branching techniques.
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. Of course, the header pipe shall be properly cut in the proximity of the area where the pipe needs to be branched.
Weldolet Drawing and Specification