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Calcite pH Neutralization Filters with Automatic Backwash With Fleck Control Valves

Calcite is a naturally occurring calcium carbonate media. One of the advantages of Calcite is its self-limiting property. When properly applied, it corrects pH only enough to reach a non-corrosive equilibrium. It does not overcorrect under normal conditions. Upon contact with calcite, acidic waters slowly dissolve the calcium carbonate to raise the pH which reduces potential leaching of copper, lead and other metals found in typical plumbing systems. Periodic backwashing will prevent packing, reclassify the bed and maintain high service rates. Depending on pH, water chemistry and service flow, the Calcite bed will have to be periodically replenished as the Calcite is depleted. As the Calcite’s calcium carbonate neutralizes the water, it will increase hardness and a softener may become necessary after the neutralizing filter.
  • Raises pH of water to a non-corrosive equilibrium

  • Advantages of Calcite
    • Naturally occurring, inexpensive material
    • Low uniformity coefficient for maximum contact 
    • Slower Reacting for controlled pH correction
       
  • Automatic Backwash Feature Reduces Maintenance, Maintains Filter Efficiency, and Prolongs the Life of the Filtration Media
Calcite Filter Model No.* Service Flow Rate, Maximum** Back Wash Flow
(gpm)		 Volume of Resin (cu.ft.) Resin Tank
(Dia."×H")		 Fleck Valve In/Out Conn. Approx Ship Weight
(lb)
Calcite
(Only)		 Total (Incl. Underbed)
W-N744 1.3 2.7 0.5 0.6 7×44 5600 ¾" 100
W-N844 1.7 3.2 0.6 0.7 8×44 5600 ¾" 105
W-N940 2.2 4.2 0.7 0.8 9×40 5600 ¾" 115
W-N1054 2.7 5.3 1.2 1.4 10×54 5600 ¾" 150
W-N1252 3.9 7.5 1.7 2.0 12×52 2510 1" 190
W-N1354 4.6 9.0 2.0 2.4 13×54 2510 1" 225
W-N1465 5.3 10 2.6 3.1 14×65 2510 1" 335
W-N1665 7.0 15 3.6 4.1 16×65 2510 1" 385
W-N2162 12.0 25 5.9 6.9 21×62 2850 1.5" 645
W-N2472 15.7 30 8.0 10.0 24×72 2850 1.5" 950
W-N3072 24.5 50 12.4 16.4 30×72 3150 2" 1,535
W-N3672 35.3 75 17.1 22.1 36×72 3150 2" 1,950
W-N4272 48.1 100 23.1 30.1 42×72 3900 3" 2,950

Ordering Notes:

* Calcite Neutralization Filters are available with several options of valve voltages. Please add the appropriate voltage code to the end of the model when ordering.
110v/60Hz = 116 Example: W-N744-116
220v/60Hz = 216 Example: W-N744-216
220v/50Hz = 215 Example: W-N744-215

**5 gpm per sq. ft. of media is the best design condition for pH Neutralization. Backwash flow rate based on 25 psi pressure drop.

Skid mounting, control panel and custom sizes and configurations are available upon request.

Calcite pH Neutralizing Backwash Filter with Optional SS Jacket

Skid Mounted GAC Carbon Backwash Filters

Custom Industrial Media Installation
Calcite Neutralization Filter with Optional SS Jacket Skid Mounted Commercial Carbon Filter Custom Industrial Carbon Filter Installation
  • Fully automated with Pentair Fleck brand electromechanical control valve
  • High quality FRP/Composite Resin Tank, rated at 150 psi maximum operating pressure and 120°F maximum operating temperature.   (Optional stainless steel jackets are available for 9”-16” diameter tanks upon request.)
  • Backwash:  Time Clock Delayed (Metered, pressure-differential &  PLC-controlled options are available upon request.)
  • Manufactured in our ISO 9001:2015 Certified Facilities
  • Backed by our Experienced Technical Support Staff

Calcite Filters Manufactured in our ISO Certified Facility Member of Water Quality Association Pentair Fleck Control Valve for Calcite Filters for pH Neutralization

  • Water Neutralization 
  • Whole-House Water Filtration
  • Water Filtration for Hotels, Spas, Resorts
  • Post-Treatment to RO 
  • Beverage
  • Food Processing
  • Spot Free Rinse/Car Wash 
  • Labs
  • Pharmaceutical
  • Humidification
  • Misting
  • Rinse Water
  • Bottled Water
  • Ice Makers

Replacement Components

Optional Equipment: Stainless Steel Jackets (Add-On)

Stainless Steel Jackets are available for 9” to 16” Diameter Calcite pH Neutralization Filters.  To include a SS jacket with your calcite filter, please add the appropriate part number below to your RFQ or order.

GAC Carbon Backwash Filter with Optional SS Jacket
Model No. For Tank Size
A950-940 9" × 40"
A950-1054 10" × 54"
A950-1252 12" × 52"
A950-1354 13" × 54"
A950-1465 14" × 65"
A950-1665 16" × 65"

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