IS 10496 (1983): Feed Water, Boiler Water and Condensate for High
Hardness - Hard water does not foam. However, boiler water is deliberately softened to prevent scale formation, and this gives it a propensity to foam. Colloidal substances - Contamination of boiler water with a colloid in suspension, for example. milk, causes violent foaming. Note: Colloidal particles are less than 0.000 1 mm in diameter, and
Nov 11, 2013 · Can hard water affect my boiler? you ask. The short answer is absolutely. Most boiler water needs to be filtered before it can be used, and boiler feedwater requires different characteristics than potable drinking water. Thats a fancy way of saying that hard water isnt something to just casually dismiss when it comes to your boiler.
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. In boilers the hardness of the water can cause the formation of scale and sludge or mud. The hardness must be removed in the makeup water to the return system. Total hardness should not exceed 50 PPM.
Characteristics of boiler feedwater - Lenntech
Total hardness (ppm CaCO3) 0.300 0.300 0.200 0.200 0.100 0.050 0.0 0.0 Silica (ppm SiO2) 150 90 40 30 20 8 2 1 Total alkalinity (ppm CaCO3) 700 600 500 400 300 200 0 0 Specific conductance (micro-ohms/cm) (un-neutralized) 7000 6000 5000 4000 3000 2000 150 100 Boiler feed water
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10 rows · Water Hardness is the measure of the amount of calcium and magnesium in the water. Water
Boiler Water Treatment Guidelines; Columbia Boiler Co