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An expansion tank is attached to the main body and no pressure is applied to the internal area of the main body of this non-pressure pipe boiler. It supports operation without a license or inspection.  
The heat exchange inside the pipeline achieves indirect heat exchange and supplies clean hot water at all times.  
The water quality is consistent at all times. It has no scale or oxygen and prevents corrosion. It has a semi-permanent life cycle.  
The large capacity water boiler allows you to install the heat exchanger outside the main body to facilitate a supply of hot water.  
Depending on usage, it is classified as a one-circuit hot bath boiler and a two-circuit heating and hot bath boiler.  
Model B&B-ZM 50 60 80 100 120 150 200 250 300 350 400
Rated evaporation 103kcal/hr 500 600 800 1000 1200 1500 2000 2500 3000 3500 4000
Efficiency ㎡ 11.3 12.5 13.8 16.9 18.7 36 42 48 53 67 72
Fuel con-
sumption		 B/C ℓ/hr 65 78 104 130 156 182 243 304 364 425 486
LNG N㎡/hr 60 72 96 120 144 162 216 270 325 379 433
Fuel B/C A 20 20 20 20 20 20 20 25 25 25 25
LNG A 25 25 40 40 40 40 40 50 50 50 50
Outlet gas duct mm 200x300 200x300 250x300 250x350 280x400 300x400 300x450 350x450 350x500 400x600 450x600
Chimney mm 300 300 350 430 430 460 550 580 610 680 750
Installa-
tion exterior		 Width mm 1700 1700 1850 1850 2000 2000 2100 2100 2150 2200 2240
Depth mm 3200 3250 3500 4000 4200 4350 4450 4830 4830 5300 5565
Height mm 1900 1900 2100 2150 2200 2400 2500 2600 2600 2700 2700
For heating Structure    
Max pressure kg/㎠ 10
Thermal capacity 103kcal/hr 500 600 800 1000 1200 1500 2000 2500 3000 3500 4000
Fluid amount ㎥/hr 50 60 80 100 120 150 200 250 300 350 400
Diameter of the heating inlet and outlet A 80 80 100 100 125 125 125 150 150 150 150
급탕용 Structure    
Max pressure kg/㎠ 10
Thermal capacity 103kcal/hr 500 600 800 1000 1200 1500 2000 2500 3000 3500 4000
Fluid amount ㎥/hr 8.3 10 13.3 16.7 20 25 33.3

41.7

 50 58.3 66.7
Diameter of the heating inlet and outle A 65 65 80 80 100 100 100 100 125 125 125
1. These specifications are subject to change depending on the customer’s request and for the purpose of quality improvement.
2. The rated evaporation is obtained for a water temperature of 20℃, and vapor pressure of 10kg/cm2.
3. The gas supply pressure is 2,000 ~ 4,000 mmAq.