Condensate polishing plant is used mainly on once-through type boilers. It takes the condensate from the steam turbine/condenser and purifies or polishes it to reduce the concentrations of any impurities such as sodium chloride, sulphate, which may have entered the system via condenser tube leaks. Condensate polishing plants normally remove small levels of contaminants; therefore only have a mixed bed stage.

Continuous electrodeionization uses a combination of ion exchange resins and membranes, and direct current to continuously deionize the water without regeneration chemicals. It removes dissolved, ionizable materials such as salts, acids and bases. It can also remove weakly ionized materials such as dissolved silica, carbon dioxide and some organics. Its modules consist of mixed-bed resins sandwiched between alternating anion and cation membranes.

Corporation Cock is the method of introducing chemical into a pipe work system. The corporation cock is suited for low forming scale forming chemicals such as sodium hypochlorite.

Deaerators are mechanical devices that remove dissolved gases from boiler feed water. It uses steam to heat the water to the full saturation temperature corresponding to the steam pressure in the deaerator and to carry away dissolved gases. The deaeration system consists of storage tank, vent and a deaeration tank, where water is heated and agitated by steam bubbling through the water. Deaeration designs include atmospheric, pressurized and tray type deaerators.

Demineralized Water is obtained by distillation or ion exchange processes for medical or technical purposes. It run through active resin beds to remove metallic ions and filtered through a sub micron filter to remove suspended impurities. There are many forms of demineralized water. The differences of each form is primarily the conductivity or resistance of the water after demineralization.

Demineralizers are used to remove mineral ions from water. The process of demineralization is the same type of process used in a water softener, except that in the ion exchange process, all of ions, both negatively charged and positively charged, are removed. Demineralizers contain several beds of resins and are packaged in cartridges; the water that is obtained this way is free from both mineral anions and cations. Demineralizers will not remove organic matter or nonelectrolyte from water. These must be removed first by distillation. Demineralized water cannot be substituted for distilled water in every case.

Diaphragmless ejectors are used in applications where the standard ejectors have failed due to excessive on/off cycling frequency and/or high water temperatures. The minimum backpressure required is 20 psig to ensure proper operation.