Class 150 Hot Dipped Galvanized Forged Carbon Steel Slip On, Raised-Face Flange
Class 150 Hot-Dipped Galvanized A105/SA-105 Slip-On Raised-Face Flange
The Class 150 ASTM A105 / ASME SA-105 ASME B16.5 Hot-Dipped Galvanized Forged Carbon Steel Slip-On Raised-Face Flange provides a durable, economical connection for commercial and industrial piping systems. Combining forged carbon steel strength, convenient slip-on installation, a corrosion-resistant galvanized finish, and raised-face sealing surface, this flange is well suited for many general-purpose piping applications.
ASTM A105 / ASME SA-105 Forged Carbon Steel
Manufactured from ASTM A105 / ASME SA-105 forged carbon steel, this Class 150 slip-on flange offers excellent mechanical strength, toughness, and long-term durability. A105/SA-105 is widely specified for pressure-containing piping components used in industrial processing, manufacturing, utilities, mechanical piping, water systems, energy facilities, and general industrial piping applications.
The Class 150 designation represents an ASME pressure class rather than a maximum operating pressure of 150 PSI. Actual allowable pressure depends on material, operating temperature, flange size, and applicable pressure-temperature ratings.
Slip-On Flange Design
A slip-on flange has an internal bore that allows the flange to slide over the outside diameter of the pipe. The pipe is positioned slightly back from the flange face and typically secured using fillet welds according to the applicable welding procedure.
Slip-on construction provides convenient positioning and alignment during piping fabrication, making these flanges a popular choice for many industrial installations.
Hot-Dipped Galvanized Corrosion Protection
The hot-dipped galvanized finish provides a protective zinc coating that helps protect the underlying forged carbon steel against atmospheric corrosion, moisture, humidity, and weather exposure.
Raised-Face Flange Construction
The raised-face (RF) design features an elevated gasket seating area that concentrates bolting force over the gasket to help establish a dependable seal between compatible mating flanges.
Manufactured to applicable ASME B16.5 requirements, these Class 150 flanges provide standardized dimensions, bolt patterns, facing requirements, and pressure-temperature ratings.
When ordering, verify nominal pipe size, Class 150 rating, slip-on configuration, raised face, A105/SA-105 material, hot-dip galvanized finish, gasket selection, ASME B16.5 requirements, and service conditions.