Why Treat The Water in Your Boiler?


|| Water Impurities || Water Testing || How A Boiler Works || Boiler Ratings/Load || Boiler Treatment Options ||

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SOME USEFUL WATER TREATMENT CHARTS

Water Temperature vs. Pressure

Boiler Pressure (psig)

Boiler Water (Deg. F)
0 212
5 227
10 240
15 250
20 259
25 267
30 274
40 287
50 298
75 320
90 330
105 340
120 350
140 361
160 371
180 380
200 388
220 396
240 403
260 409
280 416
300 422
350 436
400 448
450 460
550 480


Gallons of Makeup Water

Boiler Horse Power

 Percent of Condensate Return

(hp) 0% 10% 20% 30% 40% 50% 60% 70% 80% 90%
40 160 144 128 112 96 80 64 48 32 16
60 240 216 192 168 144 120 96 72 48 24
80 320 288 256 224 192 160 128 96 64 32
100 400 360 320 280 240 200 160 120 80 40
125 500 450 400 350 300 250 200 150 100 50
150 600 540 480 420 360 300 240 180 120 60
200 800 720 640 560 480 400 320 240 160 80
250 1000 900 800 700 600 500 400 300 200 100

The above figures are given as examples. Other boiler sizes can be computed accurately by using the following formula:


hp x 4 gallons/hr- % condensate return = makeup water in gallons/hour

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|| Water Impurities || Water Testing || How A Boiler Works || Boiler Ratings/Load || Boiler Treatment Options ||

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E-mail: chemical@alken-murray.com