Low NOx 3-pass flue and smoke tube steam boiler

KDF series

Main specifications

Full specification table
ModelKDF-1000 ~ KDF-10000 · 13 models
Rated evaporation1,000 – 10,000 kg/h
Maximum operating pressure1{10} Mpa[kg/㎠]
Efficiency88%
Power380V / 440V x 3ø x 60Hz

Feature

  • 3-pass structure

  • Easy to replace and repair the flue with handy open-close 2-door smoke room design.

  • The boiler has excellent sudden load fluctuation response ability as the body contains large amount of retained water.

  • High heat absorption rate by designing the rear combustion chamber wet type

  • The flue tube can be used safely as it is designed to cope with thermal expansion by making it in a waveform.

Standard specifications

KDF series

Standard specifications for 3-pass flue and smoke tube type of low NOx boiler KDF series

Category Unit KDF -1000 KDF -1500 KDF -2000 KDF -2500 KDF -3000 KDF -3500 KDF -4000 KDF -4500 KDF -5000 KDF -6000 KDF -7000 KDF -8000 KDF -10000
Boiler specifications Rated evaporation kg/h 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 6,000 7,000 8,000 10,000
Medium hot water Gcal/h 1G 1.5G 2G 2.5G 3G 3.5G 4G 4.5G 5G 6G
Maximum operating pressure Mpa[kg/㎠] 1{10}
Heat output MW 0.75 1.12 1.50 1.87 2.25 2.62 2.99 3.37 3.74 4.49 5.24 5.99 7.48
kcal/h 643,700 965,550 1,287,400 1,609,250 1,931,100 2,252,950 2,574,800 2,896,650 3,218,500 3,862,200 4,505,900 5,149,600 6,437,000
Efficiency % 88%
Heating area ㎡ 26 33 41 51 62 70 81 91 101 110 121 138 175
Power V 380V / 440V x 3ø x 60Hz
Burner Combustion control - HI - LOW - OFF / HI - MID - LOW - OFF / proportional control
Burner type Forced mixing type
Ignition method Pilot ignition method
Fuel consumption LNG N㎥/h 73.1 109.7 146.3 182.9 219.4 256.0 292.6 329.2 365.7 438.9 512.0 585.2 731.5
LPG +AIR 52.2 78.4 104.5 130.6 156.7 182.9 209.0 235.1 261.2 313.5 365.7 418.0 522.5
Propane 32.7 49.0 65.3 81.6 98.0 114.3 130.6 146.9 163.3 195.9 228.6 261.2 326.6
Butane 24.8 37.2 49.6 62.0 74.4 86.8 99.2 111.6 124.0 148.8 173.6 198.4 248.0
Power consumption Water pump Model Vertical multi-step
kW x Quantity 2.2 X 2 3.0X2 3.7X2 5.5X2 7.5X2
Blower kW 3.7 7.5 11 15 19 22
Connection diameter Steam outlet A 50 65 80 80 100 100 100 100 125 125 150 150 200
Water inlet 25 25 25 25 40 40 40 40 40 40 40 40 50
Drainage outlet 40 40 40 40 40 40 40 40 40 50 50 50 50
Gas inlet 25 40 40 40 40 40 50 50 50 65 65 80 80
Safety valve 25 X 1 32X1 40X1 32X1/25X1 40X1 / 25X1 40X2 40x1/32X1 40X2 50 X 1 / 40 X 1 65X1 / 50X1
Exhaust outlet mm 250X400 250X550 300X600 300X750 400X750 400X800 400X950 500X950 500X950 600X950 600X900 700X950 700X950
Flue ø 300 350 400 450 500 550 600 600 650 650 650 700 800
External size Width(W) mm 2,178 2,278 2,408 2,408 2,498 2,605 2,705 2,852 2,852 2,660 2,810 3,010 3,120
Length(L) 3,553 3,715 3,968 4,448 5,069 5,075 5,275 5,375 5,575 5,600 6,200 6,500 6,960
Height(H) 2,796 2,896 3,031 3,031 3,131 3,251 3,351 3,501 3,501 2,860 3,060 3,250 3,320
Weight Ton 4.6 6.8 8.4 9.1 11.0 12.6 13.5 15.4 15.9 16.4 17.6 19.2 22.5

The above specification table is indicated as follows. Fuel consumption is based on the low-level calorific value.
- LNG : 10,000 kcal/N㎥
- LPG + AIR : 14,000 kcal/N㎥
- Propane(LPG) : 22,400 kcal/N㎥
- Butane : 29,500 kcal/N㎥
The rated evaporation amount is based on the water supply temperature of 20℃ and steam pressure of 1MPa.
These specifications are subject to change without prior notice to improve product performance.

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