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Clack Filter Sand Filtration Media

Product Description

Clack Filter Sand and Gravel are naturally occurring, river washed, glacial deposit products. Their excellent chemical properties - high silica content and low soluble calcium, magnesium and iron compounds - meet AWWA-B100-96 specifications. Precision sizing and uniform grading to close limits meet the rigid specifications of professional engineers throughout the world. For over 80 years Clack Filter Sand and Gravel have been satisfying the requirements of industrial, municipal and residential users. These products have been specified and used nationally and internationally because of their high quality, desirable chemical properties, color, and wide range of precision sizing. Processing and regular analysis of production are supervised by registered professional engineers. Clack Filter Sand is graded specifically for water filtration plants. It can be used in municipal, industrial or residential applications for sediment filtration. Clack Uncrushed Gravel has a highly spherical shape that promotes good flow and even distribution in support beds. Gravel is low in soluble impurities and it will maintain the quality of the treated water, especially in softeners. Three inch layers are recommended in graded support beds.

Order Information
Part No. Description Cu. Ft. /Bag Wt./Cu. Ft. Bags/Pallet Weight/Pallet Pallet Dimension
A8071 Filter Sand (0.44-0.55mm) 1 100 lbs. 30 3050 lbs. 42" x 40" x 45"
A8072 #20 Flint (1.65-2mm) 1 100 lbs. 30 3050 lbs. 45" x 41" x 40"
A8072-01 #20 Flint (1.65-2mm) 0.5 (50 lbs.) 100 lbs. 40 2050 lbs. 42" x 40" x 30"
A8073 1/4 x 1/8 Flint 1 100 lbs. 30 3050 lbs. 42" x 40" x 44"
A8073-02 1/4 x 1/8 Flint 0.5 (50 lbs.) 100 lbs. 40 2050 lbs. 42" x 40" x 30"
A8074 1/2 x 1/4 Flint 1 100 lbs. 20 2050 lbs. 42" x 40" x 28"
A8075 3/4 x 1/2 Flint 1 100 lbs. 20 2050 lbs. 42" x 40" x 28"
A8076 1 x 3/4 Flint 1 100 lbs. 20 2050 lbs. 42" x 40" x 28"

Physical Properties

• Color: Light tan to reddish brown
• Density: 100 lbs./cu. ft.
• Mesh Size: 18x35*
• Effective Size: 0.45-0.55 mm*
• Uniformity Coefficient: 1.6 or less*
• Acid Solubility: 0.3-1.6%
• Specific Gravity: 2.65-2.75

Conditions For Operation
• Bed depth: 18-30 in.
• Freeboard: 20% of bed depth (min.)
• Backwash flow rate: 15-20 gpm/sq.ft.
• Backwash bed expansion: 20% of bed depth
• Service flow rate:
     Municipal: 1.5-2 gpm/sq. ft.
     Industrial: 3 gpm/sq. ft.
     Domestic: 5 gpm/sq. ft.




• Clack Filter Sand is graded specif ically for water filtration plants
• Filter Sand can be used in municipal, industrial or residential applications
• The spherical shape of uncrushed gravel promotes good flow and even distribution

[custom-documents]Clack Filter Sand Filtration Media [/custom-documents]
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