20X22 ND | Rectangular Damper | 20X22 ND MOTORIZED DAMPER | EWC Controls Section_Carbon Steel Valves Models that close on a

Models that close on a pressure increase are used on steam unit heaters to avoid blower operation when steam pressure is below the point required for adequate heating

2X1-1/2 PVC DWV REDUCING VENT TEE HUBXHUBXHUB

4X10 PVC NIPPLE TOE SCH80

10 PVC 90 ELBOW SOCKET SCH40 FABRICATED

1 GALV ROUND FLOOR FLANGE

20X22 ND | Rectangular Damper | 20X22 ND MOTORIZED DAMPER | EWC Controls Section_Carbon Steel Valves Models that close on aACTUATORS ARE INSTALLED ON THE 2ND DIMENSION, PHOTO IS GENERIC AND MAY NOT REPRESENT THE PART BEING ORDERED Rectangular Damper 20X22 ND MOTORIZED DAMPER Resources Datasheet More Info ^^This damper is 20" by 22". The motor lever is installed on the 22" side. Full dimensional specifications are in the datasheet below.