This reference page brings together the dimensional data, terminology, and practical checking points for Schedule 60 Pipe 22 Inch (DN550). Use the table for dimensional review, then confirm how the pipe interacts with supports, fittings, valves, connected equipment, and the project specification.
For related design work, compare this entry with the site’s pipe schedule references, pipe dimension guides, and pipe fitting resources. The downloadable DWG can also support preliminary routing and drafting checks, but it should be reviewed against the project’s approved design information before fabrication.
Schedule 60 Pipe 22 Inch (DN550 mm) is a carbon steel pipe size commonly used in heavy-duty piping systems where higher wall thickness and stronger mechanical performance are required. This pipe size is typically referenced under ANSI/ASME B36.10, which is the standard used for wrought steel pipe dimensions.
For this size, the pipe has an outside diameter (OD) of 559 mm, an inside diameter (ID) of 514.54 mm, and a wall thickness of 22.23 mm. The listed pipe weight is 294.27 kg/m, while the weight including water is 502.09 kg/m.
Schedule 60 Pipe 22 Inch (DN550 mm) Dimension Table
| Pipe Size | NPS | DN | Outside Diameter (OD) | Inside Diameter (ID) | Wall Thickness | Weight |
|---|---|---|---|---|---|---|
| Schedule 60 Pipe | 22 Inch | DN550 | 559 mm | 514.54 mm | 22.23 mm | 294.27 kg/m |
What Is Schedule 60 Pipe?
Schedule 60 pipe is a heavier wall steel pipe schedule used when a thicker pipe wall is needed compared with lighter schedules such as Schedule 40. In general, a thicker wall can provide improved strength, durability, and pressure-handling capability, depending on material grade, design temperature, and service conditions.
Pipe schedule selection should always be checked against project requirements such as design pressure, temperature, corrosion allowance, piping code, and fabrication method before final use.
22 Inch Schedule 60 Pipe Data
- Standard: ANSI/ASME B36.10
- Pipe Type: Steel Pipe
- NPS: 22 Inch
- DN: DN550
- OD: 559 mm
- ID: 514.54 mm
- Wall Thickness: 22.23 mm
- Pipe Weight: 294.27 kg/m
- Weight Including Water: 502.09 kg/m
Common Uses of 22 Inch Schedule 60 Pipe
22 inch Schedule 60 steel pipe may be used in applications where a large internal flow path and thicker wall construction are needed. Typical uses may include:
- Industrial process piping systems
- Water transmission and utility piping
- Oil and gas piping applications
- Power plant and heavy-duty piping systems
- Projects requiring higher wall thickness than lighter schedules
Why DN550 Pipe Dimensions Matter
Many users search for DN550 pipe dimensions to verify pipe routing, structural support loads, transportation limits, fabrication details, and compatibility with fittings or connected equipment. For a 22 inch pipe, accurate dimensional data is especially important because weight, lifting, and installation requirements can increase significantly.
Knowing the correct 22 inch Schedule 60 pipe dimensions also helps engineers, detailers, estimators, buyers, and students compare this pipe size with other schedules when reviewing wall thickness, internal flow area, and total pipe weight.
NPS 22 and DN550 Explained
NPS stands for Nominal Pipe Size in inches, while DN stands for Diameter Nominal in metric designation. For this pipe size:
- NPS 22 = inch-based nominal pipe size
- DN550 = metric nominal designation
Although DN is shown in metric form, the actual outside diameter should always be checked from the dimensional standard. For this size, the OD is 559 mm.
Reference for Schedule 60 Pipe 22 Inch
This page provides a quick dimensional reference for engineers, piping designers, students, fabricators, and procurement teams looking for Schedule 60 Pipe 22 Inch (DN550 mm) data in a clear format.
Reference Standard: ANSI/ASME B36.10 steel pipe dimensions.
How to Use This Schedule 60 Pipe Reference
The dimensional table is most useful when several project disciplines need the same baseline information. Piping designers can use the outside diameter for routing and connection checks, while the inside diameter helps with flow-path review and internal clearance considerations. Fabricators and detailers can use the wall thickness when coordinating weld preparations, fit-up, and related detailing requirements.
The listed pipe weight is important for support spacing studies, lifting plans, transportation review, and the preliminary assessment of connected equipment loads. The separate water-inclusive weight represents a different loading condition from the dry pipe value; it should not be treated as a substitute for a complete operating, hydrostatic-test, or design-load assessment.
Schedule Selection Is Not a Standalone Design Decision
A schedule identifies a dimensional wall category, but it does not by itself establish an allowable pressure, temperature limit, material grade, corrosion allowance, or complete code compliance. Those checks depend on the project specification, service fluid, design conditions, applicable piping code, joining method, and inspection requirements.
Before procurement or fabrication, confirm the dimensional reference, material documentation, end preparation, length requirements, tolerances, coating or lining requirements, and compatibility with the selected flanges, fittings, valves, and supports. The source data on this page should remain the dimensional reference for this entry; project-specific engineering verification is still required.
Drafting and Procurement Checks
- Use the OD when checking clearances, sleeves, clamps, supports, and connected components.
- Use the ID and wall thickness together when reviewing flow routing, internal access, and fabrication details.
- Distinguish dry-pipe weight from the listed water-inclusive condition when preparing load information.
- Confirm that the NPS and DN designations match the project’s piping class and equipment connection data.
- Review the DWG as a drafting aid rather than as a replacement for approved specifications or fabrication drawings.
Related Pipe Reference Topics
Readers comparing alternatives may also benefit from the site’s guides to pipe schedule comparison, NPS and DN terminology, pipe weight evaluation, and piping support considerations. These topics help place the listed dimensions into a broader design and drafting workflow without replacing project calculations.
Frequently Asked Questions
What is the outside diameter of Schedule 60 Pipe 22 Inch?
The listed outside diameter is 559 mm. Use this dimension for routing, clearance, support, and connection checks.
What are the NPS and DN designations for this pipe?
This entry identifies the pipe as NPS 22 and DN550. These are nominal designations, so the actual outside diameter should be taken from the dimensional data rather than inferred from the label alone.
What is the wall thickness?
The listed wall thickness is 22.23 mm. The applicable project specification should also be checked for manufacturing tolerances and any required corrosion allowance.
How should the pipe weight be used?
The listed dry pipe weight is 294.27 kg/m. It can support preliminary reviews of handling, supports, transportation, and connected-equipment loading, but final load cases require project-specific engineering.
What does weight including water mean?
The listed water-inclusive weight is 502.09 kg/m. It describes a pipe-and-water condition and should be kept separate from dry, operating, test, or other project load cases.
Is Schedule 60 automatically suitable for a particular pressure service?
No. Schedule selection alone does not establish suitability. Confirm material grade, design pressure, temperature, corrosion allowance, piping code, fabrication method, and service requirements before use.
Can the DWG be used for fabrication?
The downloadable DWG is useful as a drafting and layout reference. It should be checked against approved project drawings, specifications, connection details, and fabrication requirements before it is used for manufacture.