Class 125 Forged Carbon Steel Lap Joint, Flat-Face Flange
Class 125 Forged Carbon Steel Lap Joint Flat-Face Flange
The Class 125 Forged Carbon Steel Lap Joint Flat-Face Flange provides a durable and versatile connection for commercial and industrial piping systems. Combining strong forged carbon steel construction with the flexibility of a lap joint design, this flange allows easier bolt-hole alignment and convenient disassembly when used with a compatible stub end.
Forged Carbon Steel Construction
Manufactured from forged carbon steel, this Class 125 lap joint flange provides excellent mechanical strength, toughness, and long-term durability. The forging process creates a dense, uniform structure that provides dependable performance when the flange is properly specified and installed.
Forged carbon steel lap joint flanges are used in industrial processing, manufacturing, utilities, mechanical piping, water systems, power facilities, chemical processing, and general industrial piping applications.
Class 125 Lap Joint Flange Design
A lap joint flange is designed for use with a compatible stub end that is attached to the pipe. The backing flange remains free to rotate behind the stub end, allowing bolt holes to be aligned with the mating flange without rotating the connected pipe.
This rotating design can simplify piping installation, equipment alignment, maintenance, disassembly, and system modifications. It can be particularly useful in piping systems requiring periodic inspection or access.
Flat-Face Lap Joint Construction
The flat-faced lap joint flange bears against the back of the compatible stub end. In the completed connection, the stub end provides the gasket seating surface, while the lap joint flange supplies the bolting force necessary to secure the assembly.
Because the backing flange normally does not contact the process fluid, material selection can offer additional flexibility depending on system design.
Class 125 Flange Selection
The Class 125 designation should be verified against the applicable dimensional and pressure standard, since Class 125 products may differ from standard forged-steel ASME pressure classes.
When ordering a Class 125 forged carbon steel lap joint flat-face flange, verify nominal pipe size, actual flange class, material specification, compatible stub end, dimensional standard, bolt pattern, gasket requirements, bolting, operating temperature, and service conditions for proper piping system compatibility.