This reference page covers the published dimensions, weight, bolt information, and CAD resource for a Weld Neck Flange 24 Inch Class 600. Use the source data for drafting and coordination, then verify project-specific requirements before fabrication or installation.
The most important selection detail is the flange bore. Unlike several external flange dimensions, the bore must correspond to the pipe outside diameter and wall thickness or schedule. For related design work, connect this page with references covering pipe schedules, flange face types, stud bolt dimensions, and piping CAD blocks.
Weld Neck Flange 24″ Class 600
Weld Neck Flange 24″ Class 600 is widely used in piping systems that require strong, leak-resistant flange connections under high-pressure service. It features a long tapered hub that provides excellent stress distribution and is commonly applied in process piping, utility lines, refineries, power plants, and industrial systems where welding strength and reliability are essential.
This dimension data is based on ANSI / ASME B16.5-2020.
Weld Neck Flange 24″ Class 600 Dimensions
- Reference Standard: ANSI / ASME B16.5
- Nominal Pipe Size (NPS):24″
- DN Size: DN600
- Outside Diameter:940mm
- Flange Thickness:101.6mm
- Hub Diameter:718mm
- Bore Diameter: varies depending on pipe schedule and pipe wall thickness
- Raised Face Diameter:692.2mm
- Weight: 568kg
- Number of Bolts:24
- Stud Bolt Size: 1 7/8″ UNC (or M48) x 330 Long
- Hole Diameter: 2″ (50.8mm)
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 600 is commonly used for:
- Process piping systems
- Oil and gas lines
- Water and utility piping
- High-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 600, which can be used for drafting, detailing, piping layout coordination, and fabrication reference.
Available Weld Neck Flange Class 600 Sizes
This size is part of the Weld Neck Flange Class 600 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 This Weld Neck Flange Reference
The listed outside diameter, thickness, hub diameter, raised-face diameter, bolt-hole information, and weight describe the flange component as published in the source data. These values support preliminary layout, bill-of-material development, drawing review, and fabrication communication.
The flange bore is identified separately because it is not a universal value for every pipe-wall condition. Confirm the matching pipe schedule or wall thickness before using the flange in a detailed model, spool drawing, or fabrication package. A flange that matches the nominal pipe size still requires a compatible bore and weld-end detail.
Why the Tapered Hub Matters
A weld neck flange is welded directly to the pipe through its extended tapered hub. The hub provides a gradual transition between the pipe and flange, helping the connection manage stress more effectively than a short, abrupt transition. This makes the flange geometry especially relevant when reviewing pressure-piping layouts, thermal movement, cyclic service, or weld details.
Drafting and Installation Review
- Use the published outside dimensions and bolt-hole layout for general arrangement and coordination drawings.
- Match the bore to the actual pipe schedule or wall thickness rather than relying only on the nominal size.
- Confirm the flange facing, gasket arrangement, material specification, and project pressure-temperature requirements.
- Check bolt diameter, thread designation, length, clearance, and tightening requirements against the project specification.
- Use the downloadable DWG as a drafting reference, and verify scale, units, facing details, and fabrication requirements before issuing construction documents.
Useful related references include Class 600 flange dimensions, weld neck flange sizes, pipe flange terminology, and flange bolt-hole patterns. These links can help readers compare this component with adjacent piping items without replacing the authoritative values on this page.
Frequently Asked Questions
What information is provided for the Weld Neck Flange 24 Inch Class 600?
The page provides the published flange dimensions, weight, bolt count, stud bolt information, hole diameter, raised-face information, and a CAD download reference.
Does the flange bore stay the same for every 24-inch pipe?
No. The bore depends on the associated pipe schedule or wall thickness. Verify the pipe and flange bore together before fabrication or installation.
Why is a weld neck flange used in pressure piping?
Its long tapered hub creates a gradual transition from the pipe to the flange and is intended to improve stress distribution at the connection. The final suitability of the connection still depends on the complete design, material, welding, gasket, bolting, and service requirements.
Can the DWG file be used directly for fabrication?
The DWG is a drafting and coordination reference. Review its units, scale, bore condition, weld details, facing requirements, and project specifications before using it for fabrication.
What should be checked before installation?
Confirm the flange material, pipe schedule, bore compatibility, gasket type, bolt and stud requirements, facing condition, alignment, welding procedure, and applicable project pressure-temperature requirements.