This reference page is intended for quick dimensional checks when working with Schedule 30 pipe 32 inch (DN800). Use the values below to coordinate piping layouts, CAD drawings, material takeoffs, support studies, and fabrication documentation without confusing nominal size with the pipe’s measured outside or inside diameter.
For adjacent large-diameter sizes, compare this page with Schedule 30 pipe 30 inch (DN750) and Schedule 30 pipe 34 inch (DN850). The existing table and lists on this page remain the primary local reference for the stated dimensions and weights.
Schedule 30 pipe 32 inch (DN800) is a large-diameter steel pipe size commonly used in piping design, drafting, fabrication, estimation, and industrial layout work. This page provides the standard dimensions, wall thickness, inside diameter, and weight per meter for NPS 32 Schedule 30 pipe based on ASME B36.10.
For engineers, designers, estimators, and CAD users, quick access to accurate pipe data helps improve piping layout, support planning, weight checks, transport review, and fabrication coordination during project development.
32 Inch Schedule 30 Pipe Dimensions
- Nominal Pipe Size (NPS): 32 inch
- Diameter Nominal (DN): DN800
- Outside Diameter (OD): 813 mm
- Wall Thickness: 15.88 mm
- Inside Diameter (ID): 781.24 mm
- Pipe Weight: 312.17 kg/m
- Pipe Weight Including Water: 791.28 kg/m
- Standard: ASME B36.10
Schedule 30 Pipe 32 Inch Data Table
| NPS | DN | Outside Diameter (OD) | Wall Thickness | Inside Diameter (ID) | Weight |
|---|---|---|---|---|---|
| 32 inch | DN800 | 813 mm | 15.88 mm | 781.24 mm | 312.17 kg/m |
Understanding 32 Inch Schedule 30 Pipe
32 inch Schedule 30 pipe is a large steel pipe size used as a reference in industrial piping layouts, utility systems, water transmission lines, process design studies, and CAD drafting. With an outside diameter of 813 mm and a wall thickness of 15.88 mm, this pipe size is suitable for large-flow applications where designers need a balance between flow capacity and pipe wall strength.
What Does Schedule 30 Mean?
Schedule 30 refers to the wall thickness series of the pipe. For NPS 32, Schedule 30 gives a wall thickness of 15.88 mm. The schedule affects the inside diameter, total pipe weight, fabrication planning, and compatibility with supports, fittings, and structural loading requirements.
Why These Pipe Dimensions Matter
Accurate pipe dimension data is important for piping layouts, spool drawings, support design, structural load review, and material takeoff. Knowing that this pipe weighs 312.17 kg/m helps with transport estimates, lifting plans, and support loading. If the pipe is filled with water, the total weight increases to 791.28 kg/m, which is useful for operating load calculations and support checks.
Common Uses of DN800 Schedule 30 Pipe
DN800 Schedule 30 pipe may be referenced in industrial utility systems, large water transfer lines, plant layout studies, process piping documentation, and engineering design work. It is also useful for piping designers, CAD users, estimators, and procurement teams who need standard steel pipe dimensions for large-diameter piping systems.
Difference Between NPS 32 and DN800
NPS 32 is the inch-based nominal pipe size designation, while DN800 is the metric nominal diameter reference. Both refer to the same pipe size category on this page. The actual standard outside diameter for this size is 813 mm.
How to Use This Data
You can use this page to quickly check:
- pipe outside diameter for layout and clearance
- inside diameter for flow reference
- wall thickness for schedule comparison
- weight per meter for estimation and transport planning
- water-filled weight for support and structural load review
Quick Reference for Schedule 30 Pipe 32 Inch
- Pipe Size: 32 inch
- DN: DN800
- OD: 813 mm
- ID: 781.24 mm
- Wall Thickness: 15.88 mm
- Weight: 312.17 kg/m
- Weight Including Water: 791.28 kg/m
- Reference Standard: ASME B36.10
Related Pipe Size Pages
Conclusion
Schedule 30 Pipe 32 Inch (DN800) is an important large-diameter steel pipe reference for piping design, drafting, estimation, and fabrication work. With its 813 mm outside diameter, 15.88 mm wall thickness, and 312.17 kg/m pipe weight, it provides useful dimensional data for engineers and designers who need fast and accurate pipe information.
Note: NPS = Nominal Pipe Size, DN = Diameter Nominal. Dimensions and weights shown here are based on ASME B36.10 steel pipe data.
How to Read This Pipe Reference
NPS 32 and DN800 are nominal designations for the same pipe size category; they are not direct statements of the measured bore. For physical layout work, the outside diameter is the key value for clearances, clamps, sleeves, supports, and connection alignment. The inside diameter is the more relevant dimensional reference for flow-area studies and internal access checks.
The schedule identifies the wall-thickness series associated with the nominal size. Changing the schedule can change the wall thickness, inside diameter, and pipe mass while the nominal size designation remains the same. A schedule designation by itself is not a complete pressure rating. Material grade, design temperature, allowable stress, corrosion or erosion considerations, joint details, and the governing design code must also be reviewed by the responsible engineer.
Using the Weight Values in Design Work
The listed pipe weight is useful for preliminary material estimates, handling reviews, support reactions, and structural coordination. The water-filled value should be treated as a specific operating-load reference for the condition stated in the source. Actual system loads may also include fittings, flanges, valves, insulation, coatings, contents other than water, temporary loads, and support or seismic effects.
Before releasing a drawing or purchase document, confirm the project material specification, required end preparation, dimensional tolerances, corrosion allowance, pressure design requirements, and connection details. The downloadable DWG can support drafting coordination, but CAD geometry should be checked against the authoritative project specification before fabrication.
Practical CAD and Drafting Checks
- Use the stated outside diameter when checking envelope, clearance, sleeve, and support locations.
- Use the stated inside diameter only for the dimensional condition represented by this pipe entry; do not assume it defines hydraulic performance by itself.
- Apply the listed mass per meter consistently when preparing preliminary line-load or transport estimates.
- Check fittings, flanges, valves, weld details, and insulation separately because they are not represented by a straight-pipe dimension entry.
- Keep NPS, DN, OD, ID, wall thickness, and weight as separate drawing or spreadsheet fields to reduce identification errors.
Frequently Asked Questions
What is the nominal size of Schedule 30 pipe 32 inch?
The nominal size is NPS 32, with the metric designation DN800. These designations identify the same nominal pipe size category on this page.
What is the outside diameter of 32 inch Schedule 30 pipe?
The stated outside diameter is 813 mm. Use this value for preliminary layout, clearance, and support coordination.
What is the inside diameter?
The listed inside diameter is 781.24 mm. It is a dimensional reference for the pipe entry and should not be treated as a complete flow calculation.
Does Schedule 30 determine the pipe pressure rating?
No. Schedule 30 identifies a wall-thickness series for the nominal size. Pressure design also depends on the material, temperature, design code, joints, manufacturing requirements, and other project conditions.
How should the pipe weight be used?
The stated 312.17 kg/m can support preliminary estimating, handling, and support-load checks. The stated water-filled value, 791.28 kg/m, represents the reference condition shown in the source; project-specific contents and attachments require separate review.
Is the DWG file ready for fabrication?
The DWG is provided as a drafting reference. Confirm its geometry and all fabrication requirements against the project specification, approved drawings, and applicable engineering review before fabrication.