This reference provides the dimensional data, bolt information, weight, and CAD resource for a 24 inch Class 150 weld neck flange. Use the listed values when reviewing piping layouts, flange details, fabrication drawings, and related procurement information.
The bore requires particular attention because it varies with the connected pipe schedule and wall thickness. The flange dimensions should therefore be reviewed together with the applicable pipe, gasket, bolting, material, and pressure-temperature requirements.
Weld Neck Flange 24″ Class 150
Weld Neck Flange 24″ Class 150 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 150 Dimensions
- Reference Standard: ANSI / ASME B16.5
- Nominal Pipe Size (NPS):24″
- DN Size: DN600
- Outside Diameter:813mm
- Flange Thickness:46mm
- Hub Diameter:663mm
- Bore Diameter: varies depending on pipe schedule and pipe wall thickness
- Raised Face Diameter:692.2mm
- Weight: 196kg
- Number of Bolts:20
- Stud Bolt Size: 1 1/4″ UNC (or M33) x 170 Long
- Hole Diameter: 1 3/8″ (34.925mm)
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 150 is commonly used for:
- Process piping systems
- Oil and gas lines
- Water and utility piping
- High-temperature 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 150, which can be used for drafting, detailing, piping layout coordination, and fabrication reference.
Available Weld Neck Flange Class 150 Sizes
This size is part of the Weld Neck Flange Class 150 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 Read the Flange Dimensions
The nominal pipe size identifies the piping connection, while the outside diameter, thickness, hub diameter, and raised face diameter describe the flange geometry. These dimensions support drawing checks and coordination with mating flanges, but they do not by themselves define every installation requirement.
The bore is not a single universal value for this flange entry. Confirm it against the connected pipe schedule and wall thickness before preparing a fabrication detail or checking internal alignment.
Bolting and Mating-Flange Checks
Use the listed bolt count, stud bolt size, bolt length, and hole diameter when checking the flange drilling pattern. Confirm that the mating flange uses a compatible pattern and that the selected gasket, washers, nuts, and tightening procedure match the project specification.
Do not treat the listed weight as a substitute for a handling or support calculation. For layout and installation planning, also consider the connected pipe, valves, fittings, insulation, supports, and any temporary lifting arrangement.
Using the CAD File
The downloadable DWG can support piping layout, drafting, detailing, and fabrication reference work. Before issuing a drawing, verify the CAD geometry against the dimension list and the project requirements, particularly the bore, raised-face arrangement, weld preparation, and mating connection.
Related Reference Topics
For a complete piping review, compare this entry with the relevant pipe schedule dimensions, gasket and flange terminology, companion flange data, and other Class 150 flange sizes available in the same reference category.
Frequently Asked Questions
What is a weld neck flange?
A weld neck flange has a long tapered hub and is welded directly to the pipe. Its geometry is intended to provide a gradual transition and reduce stress concentration near the flange connection.
What is the bore of this 24 inch Class 150 flange?
The bore varies according to the connected pipe schedule and wall thickness. Select or verify the bore only after confirming the pipe specification.
How many bolts are listed for this flange?
The source data lists the number of bolts, stud bolt size, bolt length, and hole diameter. Check all of these details against the mating flange and project bolting specification before fabrication.
Can the DWG be used for fabrication?
The DWG is provided as a drafting, detailing, layout, and fabrication reference. It should be checked against the published dimensions and approved project requirements before release for manufacture.
What should be confirmed before installation?
Confirm the flange material, pipe schedule, bore, gasket type, bolt length, and applicable pressure-temperature rating, along with the project’s latest engineering and inspection requirements.