· PDF fileASME Guidelines for Water Quality in Modern Industrial Water Tube Boilers for Reliable Continuous Operation:-Boiler Feed Water Boiler Water Drum Pressure (psi) Iron (ppm Fe) Copper (ppm Cu) Total Hardness (ppm CaCO3) Silica (ppm SiO 2) Total Alkalinity** (ppm CaCO 3) Specific Conductance (micromhos/cm) (unneutralized) 0-300 0.100 0.050 0.300 150 700* 7000 301-450 0.050 0.025 0.300 …

· PDF fileBoiler feed water ASME Guidelines for Water Quality in Modern Industrial Water Tube Boilers for Reliable Continuous Operation Boiler Water. Created Date: 2/21/2011 9:14:01 AM

a quality water and boiler operates at less than 1000 psig (6.89 MPa) drum pressure, the boiler water conductance should be that in table for 1001-1500 psig (6.9-10.34 MPa) range. In this case, the necessary continuous blowdown will usually keep these parameters below the tabulated maximum values. Alkalinity values in excess of 10% of specific conductance values may cause foaming. () ax …

· PDF fileRecommended ABMA & ASME Boiler Water Limits Boiler Water Treatment Products Water used to generate steam contains various impurities, the most typical being compounds of calcium, magnesium, silica and iron.

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