Filter Softener

Water softening systems

The hardness in water is caused by Calcium (Ca+) and Magnesium (Mg+) salts. These ions  form hard, difficult to remove layer on surfaces of pipes and equipment in drinking water and process water systems and are normally known as scale in the water. This scale reduces the efficiency of the equipments and reduces the life of it too. This scale built-up increases fuel and maintenance costs.

Softening units offer a water purification solution for hard water and limescale removal.

Softening Process Regeneration Water Quality Applications FRP Softening Units Carbon Steel Softening Units

Softening Process

Softeners are specific ion exchangers which are designed to remove ions with a multiple positive charge. A process in which Contaminant ions are removed from water is called ion exchange. As the name implies, contaminant ions are not merely removed from the water; instead, they are exchanged for another kind of ion. This process occurs in ion exchange resin.

Initially, resin is loaded with Sodium (Na+) ion. As water passes through the resin, the contaminant ions in the water displace the loaded ions from the sites on the resin. This is because the resin has a greater affinity for the contaminant ions. Affinity for most resins is based loosely on ionic size and charge. In general, affinities are as follows:

single charge ions (H+, Na+) < 2 charges (Ca++, Mg++) < 3 charges (Fe+++) < etc.

Water is passed through a column filled with ion exchange resin. Water is discharged from the bottom of the column with little or undetectable concentrations of hardness causing ions.


Over a period of time most of the softener resin gets converted into Ca, Mg form and it has no Sodium Ions (Na+) to replace Ca, Mg ions. This is called the resin exhaustion or end of service cycle. The exhausted resin has to be brought back into Sodium (Na+) form to continue the process and use it again and again. The procedure of converting exhausted resin into Sodium (Na+) form is called regeneration. Normal salt is used for regeneration.

Water Quality

The hardness of treated water generally we get after softener is less than 5 ppm as CaCO3, which is considered as commercial zero.

We supply hardness test kit along with softener, as well as spare.


FRP Body with Multi-port valve Up-flow Softening Systems:

Softener Flow range - 2 m3/hour to 15 m3/hour.


Hrushikesh Water models made from glass fiber reinforced polyester. Additional reinforcement from continuous woven over wrap.


High quality resin provides stability and uniform size for top performance and long life. Treated water hardness = < 5 ppm CaCO3


Pressure 14 - 50 psi (1-3.5 kg/cm2)
Vacuum None
Temperature 1 - 40°C
Turbidity 5 NTU, max.
Chlorine 0.5 mg/l, max.
Iron 5 mg/l
Electrical (For Automatic) 220V AC, 50 HZ / 24 VDC



High quality resin provides stability and uniform size for top performance and long life. Treated water hardness = < 5 ppm CaCO3.


Pressure 14 - 100 psi (1-7 kg/cm2)
Vacuum None
Temperature 1 - 50°C 
Turbidity 2 NTU, max
Electrical (For Automatic) 220V AC, 50 HZ / 24 VDC