2023 Online Catalog - Flipbook - Page 129
Filter-Ag Plus®
4
Filter-Ag Plus®
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Substantial savings can be realized when designing a system
using Clack Filter-Ag Plus . Its low pressure drop, high service
flow rates and high bed loadings combined with lower backwash
frequency allow economy in equipment downsizing and reduced
pumping requirements. Its low density also saves on handling
expense and shipping costs.
®
Clack Filter-Ag Plus can be applied to systems designed for
either pressure or gravity flow. Because of its unique physical
characteristics, Filter-Ag Plus can be used to replace multimedia
(graded density) filter designs.
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Air scour is possible and helpful when there is heavy loading in
the bed. It has to be done minimally in order to prevent too much
bed lift and/or advanced attrition.
An air scour of 1 to 2 cfm/ft2 at backwash rates of 15 to 20 gpm/
ft2 would be sufficient. The pressure required would be static
head pressure plus the psi necessary to deliver 1 to 2 cfm/ft2. Bed
expansion should be observed to ensure that media is not being
discharged in the back wash water. A one minute air scour at the
beginning of the backwash cycle should be sufficient. Prolonged
air scour may cause stratification of the smaller media to the top
of the bed which could affect future head loss.
Advantages:
• Deep bed filtration results in superior water quality and
reduces the load on downstream equipment.
• High sediment removal capacity results in longer filter runs,
with a substantial savings in backwash water and time out
of service.
• High service flow rates result in lower equipment costs and a
savings in space.
• Reduced shipping cost due to lighter weight/cu.ft.
• Replacement of multimedia with Filter-Ag Plus in existing
installations may increase filter capacity.
• Filter-Ag Plus is an all-natural, environmentally safe product.
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Physical Properties:
• Color: ........................................................................................................White to off white
• Dry Bulk Density: ............................................................................................ 50 lbs/cu.ft
• Specific Gravity: ...................................................................................................... 2.2 g/cc
• Mesh Size:.......................................................................................................................... 14x30
• Effective Size:............................................................................................................. 0.55mm
• Uniformity Coefficient:.....................................................................................................1.8
• Hardness: ............................................................................................... 4-5 (Mohs Scale)
Conditions for Operation:
Water pH range...................................................................................................... wide range
Maximum water temperature .................................................................. 140°F/60°C
Bed depth........................................................................................................................... 24-36 in.
Freeboard ....................................................................................50% of bed depth (min.)
Service flow rate.................................. 5 gpm/sq. ft., although considerably
................................ higher rates are often use
Backwash flow rate .............................................................................. 8-10 gpm/sq. ft.
Backwash bed expansion ................................................... 20-40% of bed depth
Upon installation allow bed to soak overnight before back-washing.
Certified to
NSF/ANSI 61
Filter-Ag Plus®
Pallet quantity - 70 bags per pallet
FILAG-PLUS
FILAG-PLUS-50-BOX
FILAG-PLUS-75-BOX
FILAG-PLUS-100-BOX
1/2 Cubic Foot Bag (25 lb.)
1/2 Cubic Foot Box
3/4 Cubic Foot Box
1 Cubic Foot Box
Call Nelsen Toll-Free — OHIO - 800.362.9686, ARIZONA - 866.445.4299, TEXAS - 855.674.0357 or FLORIDA - 866.712.6796
All prices and products subject to change without notice. ©Nelsen Corporation
$
62.10
55.10
$
71.70
$
89.00
$
Resins,
Resins, Media
Media && Chemicals
Chemicals
Clack Filter-Ag Plus is a unique natural ore called clinoptilolite
that has many outstanding advantages over common granular
filter sands and multimedia used for suspended solids reduction.
The granules are angular in shape, with rough surfaces and
micro porous void spaces as small as 3 microns. This creates
a surface area over 100 times greater than silica sand. The
angularity of the granules and the tapered internal pore spaces
allow for reduction of dirt, silt and organic matter suspended in
water by bridging, straining and adhesion. The rough surface and
internal porosity provide a high surface area for efficient reduction
of suspended matter. Utilizing deep bed filtration can typically
reduce suspended solids down to the 5 micron or less range.
Filter-Ag Plus ’ structure typically creates less pressure loss
through the filter and allows deeper sediment penetration into the
bed for higher sediment loading and longer filter runs. The deep
bed filtration capacity of Filter-Ag Plus prevents a rapid buildup
of head loss and blinding problems that are associated with
typical sand filters. The longer filter run times reduce backwash
frequency, which provides conservation of water. This ideal
combination of particle shape, texture and porosity make it a
good choice where quality water filtration and water conservation
are important.
Section
11
4
