Discover forged outlet fittings (Olets) including Weldolet, Sockolet, and Threadolet for secure branch connections in high-pressure piping. Compliant with MSS SP-97, available in carbon steel, stainless steel, and alloy materials.
FORGED FITTINGS – OUTLET (OLET FITTINGS)
Structural Features:
Outlet fittings, commonly known as Olets, are forged branch fittings used to create a branch connection from a larger (header) pipe to a smaller (branch) pipe.
They are designed to provide a smooth, reinforced, and strong transition, reducing stress concentration at the junction.
Olets are widely used as alternatives to standard tees, especially when welding to the run pipe is more practical or cost-effective.
Common Types of Outlet Fittings:
Weldolet – for butt weld connections
Sockolet – for socket weld connections
Threadolet – for threaded connections
Latrolet – for angled branches
Elbolet – for elbows
Nipolet / Sweepolet / Flangolet – for special applications
Each type is chosen based on the connection method and pipe configuration.
Standards:
ASME B16.11 (partial)
MSS SP-97 – Standard for Integrally Reinforced Forged Branch Outlet Fittings
Custom dimensions also available based on project needs
Pressure Ratings:
Generally designed to match the pressure class of the run pipe
Available in Class 3000 / 6000 / 9000 and customized ratings
Applications:
Outlet fittings are widely used in:
Oil and gas pipelines
Petrochemical processing
Pressure vessels
Power generation systems
Shipbuilding and offshore platforms
General industrial piping networks
They provide a cost-effective and structurally sound way to add branches without full tees or reinforcement pads.
Common Materials:
Carbon Steel (ASTM A105)
Stainless Steel (ASTM A182 F304, F316)
Alloy Steel (ASTM A182 F11, F22)
Also available in Duplex, Monel, Inconel, and other exotic alloys
Recommendation:
Outlet fittings are ideal for applications where customized branch connections are needed in high-pressure or high-temperature environments.
They help ensure safe, durable, and efficient distribution of flow in complex piping systems.
