Industrial & Mechanical

Pipe Size & Schedule Lookup

Select a nominal pipe size (NPS) and schedule to get the outside diameter, wall thickness and inside diameter in millimetres.

Nominal size (NPS)

Schedule

Outside diameter

21.34 mm

Wall thickness

2.11 mm

Inside diameter

17.02 mm

Outside diameter is fixed for a given NPS — the schedule only changes wall thickness, so a higher schedule means a smaller bore.

Nothing listed online for this size yet — we stock more than the website shows, so browse the range or ask us for a quote.

Reference data — verify against manufacturer datasheet for critical/high-pressure applications.

Need the material, not just the numbers?

Send us your sizes, class or PN requirement and we’ll confirm stock and price.