This reference provides the dimensional data, bolt information, weight, and CAD resource for a Weld Neck Flange 24 Inch Class 300. Use the listed dimensions for drafting and coordination, then verify the flange, pipe, gasket, and bolting details against the governing project requirements.
The bore is identified separately because it depends on the mating pipe schedule and wall thickness. For accurate connection detailing, compare this flange reference with the relevant pipe schedule, flange type, and piping terminology resources on this site.
Weld Neck Flange 24″ Class 300
Weld Neck Flange 24″ Class 300 is widely used in piping systems that require strong, leak-resistant flange connections. It features a long tapered hub that provides excellent stress distribution and is commonly applied in process piping, utility lines, and industrial systems where welding strength and reliability are important.
This dimension data is based on ANSI / ASME B16.5-2020.
Weld Neck Flange 24″ Class 300 Dimensions
- Reference Standard: ANSI / ASME B16.5
- Nominal Pipe Size (NPS):24″
- DN Size: DN600
- Outside Diameter:914mm
- Flange Thickness:68.3mm
- Hub Diameter:702mm
- Bore Diameter: varies depending on pipe schedule and pipe wall thickness
- Raised Face Diameter:692.2mm
- Weight: 359kg
- Number of Bolts:24
- Stud Bolt Size: 1 1/2″ UNC (or M39) x 230 Long
- Hole Diameter: 1 5/8″ (41.275mm)
What Is a Weld Neck Flange?
A weld neck flange is a type of pipe flange designed with a long tapered hub that is welded directly to the pipe. This design helps reduce stress concentration at the flange base and provides better strength under pressure, temperature fluctuation, and cyclic loading.
Common Applications
Weld Neck Flange 24″ Class 300 is commonly used for:
- Process piping systems
- Oil and gas lines
- Water and utility piping
- Higher pressure service
- Pressure piping connections
- Industrial fabrication and maintenance work
CAD Drawing Download
This page includes the CAD drawing file for Weld Neck Flange 24″ Class 300, which can be used for drafting, detailing, piping layout coordination, and fabrication reference.
Available Weld Neck Flange Class 300 Sizes
This size is part of the Weld Neck Flange Class 300 series. Check other sizes in the same category to find matching dimension data and CAD files for your project.
Notes
Before fabrication or installation, always confirm the latest project requirements, flange material specification, pipe schedule, bore size, gasket type, bolt length, and applicable pressure-temperature rating.
How to Use This Flange Reference
The dimensional list is intended to support preliminary layout, CAD detailing, fabrication review, and component coordination. The outside diameter, thickness, hub diameter, raised face diameter, hole diameter, and bolt information describe the flange geometry and connection interface. They should be checked against the mating flange and the selected sealing arrangement before release for fabrication.
Why the Bore Requires Pipe-Schedule Verification
A weld neck flange is welded to the pipe through its tapered hub. The flange bore must match the pipe connection and its wall thickness; therefore, the bore cannot be treated as a universal value for every pipe configuration. Review the applicable pipe dimensions and schedules reference before selecting or detailing the bore.
Bolting and Facing Checks
The source data identifies the stud bolt size, bolt length, hole diameter, and number of bolts. These details should be coordinated with the mating flange, gasket type, washer requirements, available tooling, and the project bolting specification. Do not use the bolt information alone to establish a complete pressure-boundary design.
CAD and Drafting Workflow
Use the downloadable DWG as a drafting reference for piping layouts, fabrication drawings, and model coordination. Confirm units, insertion scale, facing details, bore selection, and any project-specific modifications before incorporating the drawing into a released document. Related references for flanges, fittings, and CAD/DWG resources can help maintain consistent detailing across a piping package.
Selection and Installation Review
Before procurement or installation, verify the material specification, pipe schedule, gasket, bolt assembly, flange facing, pressure-temperature requirements, and applicable project standards. The listed weight is useful for handling and layout planning, but lifting, support, and structural decisions require project-specific engineering review.
Frequently Asked Questions
What information is provided for this Weld Neck Flange 24 Inch Class 300?
The reference includes flange dimensions, weight, bolt quantity, stud bolt size and length, hole diameter, raised face information, hub information, and a CAD drawing download.
Why is the bore not given as one fixed dimension?
The bore varies with the connected pipe schedule and wall thickness. Confirm the mating pipe details before finalizing the flange selection or drawing.
What is the purpose of the tapered hub?
The tapered hub provides the transition from the flange body to the pipe and helps distribute stress near the welded connection. The weld design and installation still require compliance with the applicable engineering and fabrication requirements.
Can the DWG be used directly for fabrication?
The DWG is a drafting and coordination reference. Review its units, scale, bore, facing, material, and project-specific requirements before using it in a fabrication document.
What should be checked before installation?
Confirm the pipe schedule, flange material, gasket, mating flange, bolting, facing, pressure-temperature requirements, and applicable project specifications before installation.