Boiler Water Hardness Test

If the boiler feedwater contains a high level of bicarbonate alkalinity and sulfates a dealkalizer is recommended.

Boiler water hardness test. It is important to maintain minimum of 10 ppm of phosphate. Boiler feed water and condensate systems are regularly tested for impurities which include gasses and undissolved solids. The hardness must be removed in the makeup water to the return system. In boilers the hardness of the water can cause the formation of scale and sludge or mud.

The nalco water hardness response program incorporates a state of the art hardness analyzer that monitors the process stream. You can also check your pipes and equipment for improper chemical levels that can cause corrosion and scale buildup shortening their life. Feedwater condensate make up water for increases in hardness calcium and magnesium concentrations. Hardness is the main source of boiler scale.

Most boiler systems have sodium zeolite softened or demineralized makeup water. The hardness of water is caused by calcium and magnesium ions which will vary greatly throughout the country depending on the source of the water. Phosphate for testing the presence of phosphate compounds. Water hardness levels are typically checked manually through the use of chemical reagents but such measurements are time consuming and can result in incorrect readings.

The recommended hardness of boiler feedwater is less than 1 ppm so a water softener is required for nearly all boilers. Feedwater hardness usually ranges from 0 01 to 2 0 ppm but even water of this purity does not provide deposit free operation. Therefore good internal boiler water treatment programs are necessary. Total hardness should not exceed 50 ppm.

These combine with water properties such as hardness and alkalinity to deposit scale and cause corrosion of water tubes and internal fittings. Condensate ph measuring the acidity or alkalinity of the water. Hardness test water hardness is composed primarily of dissolved calcium and magnesium compounds. What are the advantages of boiler water treatment.

To prevent corrosion in boiler and feed system. Feed water hardness is one of the main factors in making treatment recommendations. Hardness test of boiler water are not necessary when the phosphate is above the lower limit of the control range. To check for salt causing hardness note.

Oil causes foaming or combines with suspended. To prevent the scale formation in the boiler and feed system. Hydrate alkalinity for testing the presence of hydrates. Deha oxygen test for testing oxygen and chemical content.

Every effort should be made to prevent oils from getting into the boiler water. Neutralized conductivity for testing the presence of ferrous ions and metal contents. The main boiler water tests that are routinely carried out on board are as follows.