Standard Rectangular Duct Sizes Mm

Spiral ducts dimensions standard dimensions.

Standard rectangular duct sizes mm.

Equivalent diameter rectangular and circular hvac ducts equivalent diameter for rectangular and circular ducts air flows between 100 50000 cfm maximum size of duct or pipe through steel joists k series joists and maximum size of ducts and pipes. Maximum size of duct or pipe through steel joists k series joists and maximum size of ducts and pipes. Equivalent diameter of rectangular ducts rectangular duct sizes chart helps you to find the size of duct with its corresponding inches. The ducts and fittings below and above these sizes are available on request.

Ducts diameter and cross sectional area circular ducts and cross sectional areas. The standard dimensions of ducts and fittings range between 130 mm and 2500 mm for any side length. Sizing is based on airflow needs per cubic foot per minute as well as velocity. Rectangular 10 3750 400 1000 2000 the air tightness classes are specified in the table below.

Here equivalent diameter of rectangular ducts are given from 60 to 3050. Rectangular air ducts velocity diagram velocity diagram for rectangular air ducts metric units.