Minneapolis Blower Door™ Ring E

Blower Door Fan Flow Ring E

Ring E is an optional flow ring for Model 3 & 4 Minneapolis Blower Door^™ fans. Ring E measures air flows between 45 - 11 CFM.

Ring E attaches inside Ring D by rotating the 3 fastener clips. When using Rings D and E, fan pressure is measured by using the pressure tap mounted directly on Ring D, rather than the tap on the top of the fan.

Please note that Ring D is required when using Ring E with the Minneapolis Blower Door^™ fan. Ring D is sold separately.

Minneapolis Blower DoorTM Booklet 12/2020 (PDF 377kb)