Multi-Media

Multi-Media Filters (Sand Filters) with Automatic Backwash for Sediment Removal

Multi-Media Filtration is effective in removing dirt, silt, rust, and other suspended particles from a water stream with a filtration level of approximately 5 to 15 microns.

Multi-Media Filters contain several types of media and gravel under bedding. Multi-media filtration is a proven design concept; the coarse media layers in the top of the tank trap large particles, and successively smaller particles are trapped in the finer layers of media deeper in the bed. The result is a highly efficient filtering since removal takes place throughout the entire bed. Multi-Media depth filters typically remove particles 5-15 microns in size or larger. All media included in our filters are carefully selected according to particle size, so the media retains its stratification during backwash and rinse. Automatic backwashing system removes the trapped contaminants within the filter bed and washes them down the drain.

Multi Media Backwash Sediment Filters Product Details

Model No.*	Flow Rate** (GPM)		Backwash Flow** (GPM)	Volume of Media (ft³)		Resin Tank (Dia”×H”)	Valve Size	In/Out Conn.	Approx. Shipping Wt. (lbs)
Model No.*	5gpm/ft²	15gpm/ft²	Backwash Flow** (GPM)	Filtration (Only)	Total (Incl. Underbed)	Resin Tank (Dia”×H”)	Valve Size	In/Out Conn.	Approx. Shipping Wt. (lbs)
W-MB744ET	1	4	4.2	0.50	0.60	7×44	1”	1”	80
W-MB844ET	2	5	5.3	0.60	0.70	8×44	1”	1”	90
W-MB940ET	2	6	6.5	0.75	0.85	9×40	1”	1”	100
W-MB1054ET	2	7	7.5	1.25	1.45	10×54	1”	1”	150
W-MB1252ET	4	12	11	1.75	2.05	12×52	1”	1”	200
W-MB1354ET	4	14	15	2.00	2.30	13×54	1”	1”	250
W-MB1465ET	5	16	15	3.00	3.50	14×65	1”	1”	365
W-MB1665ET	7	21	20	3.50	4.00	16×65	1”	1”	425
W-MB2162ET	13	36	35	6.00	7.00	21×62	1.5”	1.5”	730
W-MB2472ET	15	47	45	8.00	10.0	24×72	1.5”	1.5”	1,060
W-MB3072ET	24	74	75	12.5	16.5	30×72	2”	2”	1,755
W-MB3672ET	35	106	105	17.0	22.0	36×72	2”	2”	2,280
W-MB4272ET	48	144	140	23.0	30.0	42×72	3”	3”	3,445
W-MB4872ET	60	180	175	30.0	43.6	48×72	3”	3”	5,050

Ordering Notes:

Multi-Media Sediment Filters are available with USA or European style plugs and voltages. Please add the appropriate voltage code to the end of the model when ordering.
- 120V AC/60Hz with USA cord = US
- Example: W-MB744ET-US
- European 220V AC = EU (EU plug is removable to convert into universal 220v cord)
5 gpm per sq. ft. of media is the best design condition for filtration. For relatively clean water, you may go up to design criteria of 15 gpm per sq. ft. Backwash flow rate based on 25 psi pressure drop.
Skid mounting, control panel and custom sizes and configurations are available upon request. AMI Auto Backwash Multi-Media Sand Filters Filters are offered standard with new state of the art electronic programmable valves, but may be ordered with electromechanical Fleck valve heads upon request.