Allied Fitting 929325-13338 Weld Neck Flange 12 in 300 Class

Product Description

The ALLIED FITTING 929325-13338 is a 12-inch Class 300 weld neck flange with a raised face, manufactured from carbon steel conforming to ASME B16.5 and ASTM A105 material standards. Weld neck flanges are engineered for high-stress piping applications where structural integrity at the flange-to-pipe joint is critical. The long tapered hub distributes stress evenly and provides reinforcement against bending and pressure loads. This flange is a standard-wall fitting suited for industrial and commercial piping systems and is typically installed by licensed pipefitters and mechanical contractors working on process, HVAC, or utility piping.

This flange is designed for use in Class 300 piping systems requiring a raised face sealing surface. The raised face configuration is compatible with standard spiral wound or ring gaskets and is commonly used in carbon steel process lines, steam distribution systems, and high-pressure water systems. Standard wall thickness conforming to ASME B16.5 makes it suitable for a wide range of commercial and industrial applications where carbon steel flanges are specified.

Key Features

• 12-inch nominal size, Class 300 pressure rating per ASME B16.5
• Raised face sealing surface for use with standard compressed gaskets
• Carbon steel construction per ASTM A105 for strength in pressure service
• Weld neck design with tapered hub for stress distribution and fatigue resistance
• Standard wall conforming to ASME B16.5 dimensional requirements
• Import sourcing noted; verify project specifications for domestic material requirements

Compatibility

Designed as an OEM-style replacement or new-installation weld neck flange for Class 300 carbon steel piping systems conforming to ASME B16.5 dimensional and pressure-temperature standards.

Installation Notes

Installation should be performed by a qualified pipefitter or mechanical contractor in accordance with applicable codes including ASME B31.1 or B31.3 as required by the system service. Depressurize, drain, and isolate the piping system completely before welding or bolting any flange connection. The weld joint between the flange bore and pipe must be made by a certified welder and inspected per project specifications before returning the system to service. Do not overtighten flange bolts unevenly; follow a cross-pattern torque sequence using fastener specifications called out in the engineering drawings.

Technical Specifications

• Nominal Size: 12 inches
• Pressure Class: 300
• Flange Type: Weld Neck
• Face Type: Raised Face
• Material: Carbon Steel
• Material Standard: ASTM A105
• Dimensional Standard: ASME B16.5
• Wall: Standard
• Color: Black
• Origin: Import

Standard Information

• Brand: ALLIED FITTING
• Manufacturer Part Number: 929325-13338