This reference is intended for quick dimensional checks on Schedule 30 Pipe 36 Inch (DN900). Use the values below when developing piping layouts, checking drawing clearances, preparing material takeoffs, reviewing support loads, or coordinating fabrication information.
For efficient project work, compare the dimensional data with related Schedule 30 pipe size references when reviewing size transitions or adjacent line items. The downloadable DWG can also support preliminary CAD coordination, while final design decisions should be checked against the project piping specification and applicable engineering requirements.
Schedule 30 pipe 36 inch (DN900) 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 36 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.
36 Inch Schedule 30 Pipe Dimensions
- Nominal Pipe Size (NPS): 36 inch
- Diameter Nominal (DN): DN900
- Outside Diameter (OD): 914 mm
- Wall Thickness: 15.88 mm
- Inside Diameter (ID): 882.24 mm
- Pipe Weight: 351.73 kg/m
- Pipe Weight Including Water: 962.73 kg/m
- Standard: ASME B36.10
Schedule 30 Pipe 36 Inch Data Table
| NPS | DN | Outside Diameter (OD) | Wall Thickness | Inside Diameter (ID) | Weight |
|---|---|---|---|---|---|
| 36 inch | DN900 | 914 mm | 15.88 mm | 882.24 mm | 351.73 kg/m |
Understanding 36 Inch Schedule 30 Pipe
36 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 914 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 36, 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 351.73 kg/m helps with transport estimates, lifting plans, and support loading. If the pipe is filled with water, the total weight increases to 962.73 kg/m, which is useful for operating load calculations and support checks.
Common Uses of DN900 Schedule 30 Pipe
DN900 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 36 and DN900
NPS 36 is the inch-based nominal pipe size designation, while DN900 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 914 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 36 Inch
- Pipe Size: 36 inch
- DN: DN900
- OD: 914 mm
- ID: 882.24 mm
- Wall Thickness: 15.88 mm
- Weight: 351.73 kg/m
- Weight Including Water: 962.73 kg/m
- Reference Standard: ASME B36.10
Related Pipe Size Pages
Conclusion
Schedule 30 Pipe 36 Inch (DN900) is an important large-diameter steel pipe reference for piping design, drafting, estimation, and fabrication work. With its 914 mm outside diameter, 15.88 mm wall thickness, and 351.73 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
The table separates the pipe’s nominal designations from its physical dimensions. NPS 36 is the inch-based nominal size, while DN900 is the corresponding metric designation. The outside diameter is the principal envelope dimension for layout and clearance checks. The inside diameter describes the available internal passage, while wall thickness describes the steel section between those diameters.
Schedule identifies a standardized wall-thickness series for a given nominal pipe size. It should not be treated as a complete pressure rating. Pressure and service suitability also depend on material, temperature, design code, corrosion allowance, manufacturing requirements, joining details, and project specifications.
Using the Data in Design and Drafting
- Use the outside diameter when checking routing space, insulation or coating allowances, clamps, guides, sleeves, and openings.
- Use the inside diameter as a dimensional reference for flow studies and internal clearance checks; hydraulic design still requires the applicable fluid and system inputs.
- Use the dry pipe weight for preliminary handling, transport, and support-load reviews.
- Use the water-filled weight as an operating-condition reference when reviewing supports and structural reactions.
- Use the DWG download to reduce manual drafting effort, then verify units, scale, connection details, and project-specific geometry before issuing drawings.
Important Review Points
Pipe weight is only one part of a complete piping load assessment. A project review may also need to consider contents, insulation, valves, fittings, flanges, supports, test conditions, thermal movement, wind or seismic effects, and temporary construction loads. The values on this page are dimensional reference data and should not replace a code-based piping or structural assessment.
When ordering or fabricating, confirm the required material specification, end preparation, length, tolerances, coating or lining, inspection requirements, and connection components separately. Nominal size and schedule alone do not define every procurement or fabrication requirement.
Frequently Asked Questions
What is the difference between NPS 36 and DN900?
NPS 36 is the inch-based nominal pipe size designation, while DN900 is the metric nominal designation used for the same size category in this reference. Neither designation should be interpreted as the exact measured inside diameter.
Does Schedule 30 define the pipe pressure rating?
No. Schedule describes the wall-thickness series. Pressure capability must be evaluated using the applicable material, design conditions, code requirements, temperature effects, corrosion allowance, and project specification.
Which diameter should be used for piping layout?
Use the outside diameter as the primary pipe-envelope dimension for routing and clearance checks. Add any applicable insulation, coating, cladding, support, or access allowances separately.
Why is the water-filled weight higher than the pipe weight?
The water-filled value combines the pipe’s own weight with the mass of water occupying its internal passage. It is therefore useful for an operating-load reference, but the actual design case may include other contents and attached components.
Can the DWG file be used directly for final fabrication?
The DWG is a drafting reference. Before fabrication, verify its units, scale, geometry, end details, tolerances, and compatibility with the approved project drawings and procurement documents.