Common Conversions And Boiler Specs - Nationwide Boiler Inc.
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About Nationwide Boiler

Here you will find a variety of educational and technical resources available from Nationwide Boiler Inc. This information is geared at assisting our clients through the process of selecting the right equipment for a variety of applications. In addition, you can utilize our common conversions calculator to help you quickly convert units of measure, emissions, or boiler capacity, as well as our conversion calculators for saturated steam properties, superheated steam properties, and water properties

Firetube Boiler Specifications

Note: The links below include detailed specifications based on the size of each boiler 
(fuel input at high fire and low fire, max steam production, steam temperature, output at high and low fire, and more).

47.5 HP 300 HP 700 HP
50 HP 350 HP 800 HP
100 HP  400 HP 900 HP
119 HP 475 HP 1,000 HP
125 HP 500 HP 1,200 HP
200 HP 600 HP 1,500 HP
 250 HP 650 HP  
Boiler Horsepower Relationships

 

1 BHP = 33,475 BTU/hr  1 BHP = 746 Watts
1 BHP = 34.5 lbs/hr steam 1 BTU/hr = 0.29 Watts
1 BHP = 0.07 GPM water  1 Watt = 3.45 BTU/hr = 9.7 kW/BHP     
Water, Pressure, & Flow

 

1 atm = 14.7 psi PSIA = PSIG - 14.7
1 lb/sq.in. = 2.04 in. Hg. @ 62F = 2.31 ft. water @ 62F  g/cm2 = sp. gr. 
1 gpm = 0.143 cu.ft/min = 500 lb/hr x sp. gr.  27.7 in. water = 1 psi     
1 cu.ft/min (cfm) = 448.8 gal/hr (gph) 2.31 ft. head = 1 psi
1 centipoise = 2.42 lb/ft.hr.  
1 lb/ft.sec = 1488 centipoises = 3600 lb/ft.hr.  
Work & Power

 

1 BHP = 0.745 kW = 42.4 BTU/min = 2544 BTU/hr = 33000 ft.lb/min 1 kW HR = 1000 Watt HR = 3413 BTU
1 kW = 1000 Watts (W) = 1.341 BHP = 56.88 BTU/min = 3413 BTU/hr 1 BTU = 0.029 kW HR = 778 ft.lb. = 0.555 pcu (lb C)   
Metric Conversion Factors

 

Steam Flow
1 HP = 34.5 lb/hr = 2200 tons/hr = 2.2 kg/hr (steam)   
Temperature
100F = 37.78C
Pressure
1 PSI = .0689 bar = .0703 kg/cm2 = 703.23 kg/m2  

View complete metric conversions guide for quick conversions.