Class 1500 Studding Outlets

Class 1500 Studding Outlets serve extreme-pressure applications where flanged branch connections must withstand very high internal pressures. The forging weight and material requirements at Class 1500 are significant, and each studding outlet is manufactured with full material traceability and comprehensive NDE.

At this pressure class, the base pad of the studding outlet extends further around the header circumference to distribute the branch loading over a larger area of the header wall. The weld configuration between the pad and the header is a critical design element, requiring detailed finite element analysis for non-standard size combinations.

Class 1500 studding outlets are found in high-pressure gas injection systems, polyethylene reactor piping, and supercritical steam applications. The combination of extreme pressure and the need for reliable flanged connections makes these specialized fittings essential components in the most demanding process environments.