Class 150 Hot Dipped Galvanized Forged Carbon Steel Blind, Raised-Face Flange
Class 150 Hot-Dipped Galvanized A105/SA-105 Blind Raised-Face Flange
The Class 150 ASTM A105 / ASME SA-105 ASME B16.5 Hot-Dipped Galvanized Forged Carbon Steel Blind Raised-Face Flange provides a strong, corrosion-resistant solution for closing the end of an industrial piping system, valve connection, pressure vessel nozzle, or unused flanged opening. Its solid forged construction and galvanized finish deliver durability for demanding indoor and outdoor piping applications.
ASTM A105 / ASME SA-105 Forged Carbon Steel
Manufactured from ASTM A105 / ASME SA-105 forged carbon steel, this Class 150 blind flange offers excellent mechanical strength, toughness, and durability. A105/SA-105 is widely used for pressure-containing piping components in industrial processing, manufacturing, utilities, water systems, mechanical piping, fire protection, and general industrial applications.
The Class 150 designation identifies an ASME pressure class rather than a maximum working pressure of 150 PSI. Actual allowable pressure depends on material, operating temperature, flange size, and applicable pressure-temperature ratings.
Hot-Dipped Galvanized Blind Flange Design
A blind flange has no center bore and is designed to terminate a piping run or isolate a section of the system. Because it uses a removable bolted connection, a blind flange provides convenient access for inspection, cleaning, maintenance, pressure testing, piping modifications, and future expansion.
The hot-dipped galvanized zinc coating helps protect the forged carbon steel against atmospheric corrosion, moisture, humidity, and weather exposure.
Raised-Face Flange Construction
The raised-face (RF) flange features an elevated gasket seating area that concentrates bolting force over the gasket, helping establish a dependable seal with a compatible mating flange.
Manufactured to applicable ASME B16.5 requirements, these Class 150 blind flanges provide standardized dimensions, bolt patterns, facing requirements, and pressure-temperature ratings.
When ordering, verify nominal pipe size, Class 150 rating, raised-face configuration, A105/SA-105 material, hot-dip galvanized finish, gasket selection, ASME B16.5 requirements, and service conditions.