Description

Can-Filters 38 Special

The Can-Fan 38-Special series has been designed and manufactured with the same proven, packed bed design, proper carbon for the job and solid steel shell as the Original Can-Filter. With the exception of the carbon bed (wall ) thickness the 38-Special is identical to the Original Can-Filter. The 38-Special has a 2″ carbon bed thickness whereas the Original Can-Filter has a 2.5″ Bed thickness. The 38-Special provides superior performance with higher air flow ratings, less weight, better price and an effective contact time of .08 seconds in contact compared to the competing brands. Can Filter 50 38 Special MAX CFM: 840 Recirculating (Scrubbing) Exhaust: 420 Prefilter: Yes Flange: 6″-10″ Max Operating Temp: 80ºC Dimensions: (with pre-filter) Outside Diameter:38cm / 15″ Height: 50cm / 19.5 ” Weight: 22kg / 47lbs Carbon Bed Depth :55mm / 2″ How To Size Fan to Filter To match a Can Filter for your size growing environment, use this formula: Length x Width x Height divided by 3. This figure will give you the minimum recommended CFM for your fan. Then match your inline fan to the size filter you need by getting one that’s within the range that the Can Filter can operate within. Example, 10 x 10 x 20 = 2000 Cu. Ft. 2000 Cu. Ft./3 = 667 CFM 667 CFM fan is the minimum fan size for this area. After establishing fan size, match it to appropriate sized filter, IE, Can 100. How Much CFM Loss Through A Carbon Filter? Every different size of filter provides a different resistance to each different size and style of fan you put on it, a filter at the maximum exhaust CFM rating has approximately 0.7 wg. pressure drop. All Fans will have a lower CFM at a higher pressure. For Example at .5 wg the 10″ Max-Fan goes from 1019 CFM to 885 CFM, the 12″ Max-Fan would go from 1708 CFM to 1595 CFM. How much CFM is lost through a 25ft. Section of ducting? Approximately 3%(straight hard cast) to 7%(flex ducting). 1%