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.

Standard rectangular duct sizes mm.

The standard dimensions of ducts and fittings range between 130 mm and 2500 mm for any side length. Rectangular rectangular or square ducting comes in standard sizes ranging from 3 by 7 inches to 35 by 40 inches. Here equivalent diameter of rectangular ducts are given from 60 to 3050. Rectangular 10 3750 400 1000 2000 the air tightness classes are specified in the table below.

Ducts diameter and cross sectional area circular ducts and cross sectional areas. For 375 duct size the equivalent diameter inches will be about 16x6. Spiral ducts dimensions standard dimensions. Enter an internal duct size this must be limited to a maximum aspect ratio of 5 1 for the results to be valid the resulting vel ocity and pressure drop per unit length are displayed in the blue box.

Maximum size of duct or pipe through steel joists k series joists and maximum size of ducts and pipes. The ducts and fittings below and above these sizes are available on request.