Flownap provides a comprehensive ANSI Pipe Chart to help engineers, project managers, and procurement specialists accurately select the right pipe dimensions for their applications. The American National Standards Institute (ANSI) defines standardized pipe dimensions and wall thicknesses, ensuring consistency and compatibility across industries.
Whether you’re sourcing for oil & gas, petrochemical, power, or construction sectors, understanding pipe dimensions as per ANSI standards is critical to ensuring proper system design, safety, and performance.
The ANSI Pipe Chart is a reference guide that lists:
Nominal Pipe Sizes (NPS)
Outside Diameters (OD)
Wall Thicknesses (Schedule 5, 10, 40, 80, etc.)
Weight per Foot or Meter
This chart standardizes steel pipe dimensions, making it easier to select the correct size for both seamless and welded pipes used in structural and pressure systems.
NPS (Nominal Pipe Size): A standardized naming convention for pipe diameter.
OD (Outside Diameter): Actual external diameter of the pipe.
Schedule (Wall Thickness): Refers to the thickness of the pipe wall—thicker schedules can withstand higher pressure.
Weight: Indicates the weight of the pipe per foot/meter, helpful for transportation and structural planning.
🔧 Easy Pipe Selection for Projects
Quickly compare multiple pipe sizes and wall thicknesses.
📏 Assists with Engineering Calculations
Ensures correct pressure ratings, flow capacity, and structural load.
🌐 Industry-Wide Compatibility
Standardized dimensions mean seamless integration with flanges, fittings, valves, and accessories.
Schedule 5S & 10S: Thin wall—commonly used in low-pressure and corrosion-resistant applications.
Schedule 40: Standard wall—widely used in general applications including water and gas lines.
Schedule 80: Extra strong—for high-pressure environments such as oil & gas pipelines and power plants.
Schedule 160 & XXS: Extra heavy—for extreme pressure or critical applications.
Oil & Gas
Petrochemicals
Power & Energy
Water Treatment
Construction & Infrastructure
Marine & Offshore
Mechanical and Structural Fabrication
Our technical team at Flownap is available to guide you through the ANSI Pipe Chart and help you choose the right pipe size, schedule, and material for your specific project. We also supply pipes as per ANSI/ASME B36.10 and B36.19 standards.
Explore the ANSI Pipe Chart now or contact us for expert assistance in choosing the right pipes for your industry needs.
Let me know if you’d like this presented in a downloadable PDF or need the actual chart layout designed!
