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SAND FILTER SPECIFICATIONS: 160 SERIESFilter tanks shall be manufactured from fiberglass using heavy woven cloth as necessary for strength and have a minimum wall thickness of 0.5". Filter tanks are designed for 50 psi working pressure with a safety factor of 4 to 1. Tanks are factory tested at 75 psi. The underdrain system shall be such that uniform collection of filtered water and distribution of backwash water is provided under the entire bed area. The underdrain pipe is PVC with slotted orifices. The total area of slots in filter is equal to (4) times the area of inlet pipe. The orifices in top laterals are equal to (7) times the area of inlet pipe. Filter tank is provided with 14" x 18" fiberglass elliptical manway with gasketed yoke and bolt cover which is sealed by internal pressure.

Filter shall be designed for a filter rate of up to 20 GPM per square foot of filter area and a backwash rate of 15 GPM per square foot of filter area.

Single 160 Filter (Download .pdf)
Stacked 160 Filter (Download .pdf)
 


Sand Filter Model "A" Length of Tank Sq. Ft. Filter Area Flange Dia. Max. Flow @ 12GPM/sq ft Max. Flow @ 15GPM/sq ft Max. Flow @ 20GPM/sq ft "B" "C" "D" "E"
160-109 113" 41.6 6" 499 624 832 27" 66" 20" X
160-133 137" 51.6 6" 619 774 1032 27" X 20" 45"
160-157 161" 61.6 8" 739 924 1232 27" X 20" 57"
160-181 185" 71.6 8" 859 1074 1432 27" X 20" 69"
160-205 209" 81.6 8" 979 1224 1632 27" X 20" 54"
Saddle Footprint=5" wide x 28" long

Bags of (100 lb.) Filter Media Required by Filter Model
Filter Media 160-109 160-133 160-157 160-181 160-205
Bottom Layer, 1/4"x1/2" Stone 14 17 19 22 25
Second Layer, 1/8"x1/4" Stone 10 13 15 18 20
Third Layer, 6-20 Sand 13 16 18 21 24
Top Layer, 20-30 Sand 53 65 77 89 101
Total Bags 90 111 129 150 170



Download Single 160 Filter Dimensions

Download Stacked 160 Filter Dimensions