Pipe size is specified by two designations: a nominal pipe size (NPS) for diameter based on inches, and a schedule (Sched. or Sch.) for wall thickness. NPS is often incorrectly called National Pipe Size, …

Access our downloadable pipe schedule chart for accurate dimensions. Find the best-in-class product solutions tailored to your needs.

Specific pipe is identified by pipe diameter and another non-dimensional number for wall thickness referred to as the Schedule (Sched. or Sch., for example – "2-inch diameter pipe, Schedule 40").

The size of pipes, fittings, flanges and valves are often given in inches as NPS - Nominal Pipe Size, or in metric units as DN - 'Diametre Nominal'.

Explore comprehensive pipe dimensions including standard pipe sizes, outer diameter, wall thickness, and schedule numbers. Get detailed charts and information for piping and plumbing projects.

Aug 27, 2025 · There are two main measurements for pipes: Outside Diameter (OD): The total width across the pipe from edge to edge. Inside Diameter (ID): The usable space inside the pipe where …

Sep 6, 2025 · You use nominal pipe size schedule to describe pipe diameter and wall thickness without relying on exact measurements. ASME B36.10 and ASME B36.19 set standards for pipe size, …

2 days ago · Pipe size charts and pipe schedule charts help engineers, installers, and buyers select pipe that fits both flow requirements and pressure ratings. Nominal Pipe Size (NPS) labels the pipe, while …

Below is a list of common sizes you’ll find in hot-finished seamless tubing. Head over to our Mechanical Tubing page for more details. Click to Print HFS Size Chart. Have any questions? Talk with us …

Nominal diameter, also known as outside diameter, is used to represent the general diameter of various pipes and pipeline accessories. Due to the thin wall of the pipe, the outside and inside diameters are …