Designing a baghouse system requires careful calculation and optimization of multiple design variables to ensure reliable performance, regulatory compliance, and long-term durability.

What is Can Velocity?

Can velocity is the vertical gas velocity throughout the housing, above the hopper level but before reaching the bottom of the bags.

Can velocity is the vertical gas velocity throughout the housing, above the hopper level but before reaching the bottom of the bags.

Can velocity is the speed at which air moves vertically through the space below the filters (the “can” or lower plenum of the baghouse above the hopper). This air must move slowly enough to allow dust to fall into the hopper without being re-entrained.

Can Velocity Calculator

BAGHOUSE CAN VELOCITY CALCULATOR

Formula:
Can Velocity = ACFM ÷ ((Side L × Side W) ÷ 144)
Note: 144 square inches = 1 square foot
Can Velocity = ft/min (FPM)

Importance of Can Velocity in Baghouse Design

A high can velocity can keep dust suspended and cause it to be re-captured by the filters, reducing collection efficiency and increasing wear. Maintaining proper can velocity is essential for clean operation and effective dust discharge.

Note: Can velocity is just one part of the picture. Hopper design, precleaners, and dust type also affect performance. Always review with a dust collection expert before finalizing your design.