ASME B16.5 SO Flange, ASTM A105, 4 Inch, 150 LB, RF

Product Name: Slip-On Flange (SO Flange)
Flange Type: SO (Slip-On)
Sealing Surface: RF (Raised Face)
Standard: ASME B16.5
Material: ASTM A105
Size: 4 Inch
Pressure Rating: Class 150 LB
Surface Treatment: Black painting

Product Description

ASME B16.5 Slip-On (SO) Flange is manufactured from ASTM A105 forged carbon steel for reliable performance in industrial piping systems. This 4-inch flange features a Class 150 LB pressure rating and a Raised Face (RF) sealing surface, providing dependable gasket contact and secure connections. The slip-on design allows the flange to be easily positioned and aligned over the pipe before welding, simplifying installation and fabrication. A black-painted surface treatment provides additional protection against corrosion during storage, transportation, and service. With its robust construction and practical installation design, this ASTM A105 SO flange is suitable for a wide range of standard piping applications.

Typical Applications

ASTM A105 Slip-On Flanges are widely used in general industrial piping systems where reliable and economical flanged connections are required. Typical applications include oil and gas transmission, chemical processing, water treatment, fire protection, utility piping, and other industrial facilities operating within the Class 150 LB pressure range.

Main Features

Reliable ASTM A105 Construction

Forged ASTM A105 carbon steel provides excellent mechanical strength, durability, and resistance to operational stress.

Easy Installation

The slip-on configuration allows convenient pipe alignment and positioning before welding, helping simplify field and shop fabrication.

Raised Face Sealing Surface

The RF face provides a reliable gasket contact area for secure and effective sealing.

Corrosion-Protective Finish

Black painting helps protect the flange surface from corrosion and environmental exposure during handling and service.

Standardized Dimensions

Manufactured according to ASME B16.5 requirements for dimensional compatibility with standard piping components and systems.