Non-pressure tube type hot water boiler

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Non-pressure tube type hot water boiler

Non-pressure tube type hot water boiler

Non-pressure tube type hot water boiler SEH Series SEH-100/200/300/400/500/600/800/1000/1300/1600/2000/2500

A new, easy-to-use method of heating and hot water using a non-pressure tube type hot water boiler.
Product Features
  • The water pipe is operated at a low temperature of 95℃ or lower, rarely needs to be replaced, and is maintained in a degassed state, so there is no need to worry about corrosion caused by dissolved oxygen. Since scale does not attach to the heat exchanger, fuel costs are reduced through high efficiency, and the lifespan is semi-permanent.
  • The hot water is indirectly heated in a copper pipe heat exchanger, providing clean, rust-free hot water.
  • Heat exchangers for heating and hot water circulation can be installed in a single pipe body, allowing for a wide range of uses. Additionally, since each heat exchanger is independent, there is no mixing of water, and installation and construction are simple.
  • Anyone can operate without a license or inspection.
  • By attaching a circulation pump to exchange heated water, it generates hot water in a short period of time and maintains high efficiency.
  • Fuel costs can be significantly reduced by attaching a condensing economizer (pressurized high performance) to the exhaust gas flue area. (Optional)
  • When equipped with the artificial intelligence control device SE-Ai system, operation and maintenance become easier. (Optional)
How it Works
It is a structure in which the expansion tank is directly attached to the boiler body, and is operated under 95℃ in a non-pressurized state. Temperature control switch, overheating prevention switch, water level controller, and overflow line are installed as standard to ensure safety from accidents such as damage or explosion. It is easy to handle without a license or inspection.

Product standard specifications performance table

Item＼Type Unit SEH-100 SEH-200 SEH-300 SEH-400 SEH-500 SEH-600 SEH-800 SEH-1000 SEH-1300 SEH-1600 SEH-2000 SEH-2500
Tube heat output MW 0.12 0.23 0.35 0.47 0.58 0.7 0.93 1.16 1.51 1.86 2.33 2.91
kcal/h 100,000 200,000 300,000 400,000 500,000 600,000 800,000 1,000,000 1,300,000 1,600,000 2,000,000 2,500,000
Heat transfer area ㎡ 6.1 8.2 9.3 11.3 12.8 14.2 16 22 25 28 30 36
Thermal efficiency % 90
Control method - ON-OFF HIGH-LOW-OFF
Power used V 220V×1Ø 220V×3Ø / 380V×3Ø×4W
Total power consumption kw 0.4 0.4 1.0 1.5 1.5 2.0 2.6 4.1 6.0 8.0 12 15
Product weight kg 760 820 880 1,520 1,600 1,840 2,200 2,600 3,100 3,600 4,000 4,300
Fuel consumption Diesel kg/h 10.7 21.5 32.3 43.1 53.9 64.7 86.2 107.8 140.2 172.5 215.7 269.6
City gas(13A) N㎥/h 11.2 22.4 33.6 44.8 56.1 67.3 89.7 112.2 145.9 179.5 224.7 280.5
LPG(Propane) N㎥/h 4.9 9.9 14.8 19.8 24.8 29.7 39.7 49.6 64.5 79.4 99.2 124.1
kg/h 10 20 30 40.1 50.1 60.1 80.2 100.2 130.3 160.4 200.5 250.7
LPG(Butane) N㎥/h 3.9 7.8 11.7 15.6 19.5 23.4 31.2 39.1 50.8 62.5 78.2 97.8
kg/h 10.1 20.3 30.4 40.6 50.8 60.9 81.3 101.6 132.1 162.6 203.3 254.1
Connection diameter Refueling port A 8 15 15 15 20 20 20 20 25 25 25 25
Gas inlet A 20 25 32 50 50 50 50 50 50 50 50 50
Drain A 25 32 40 40 50 50 50 50 65 65 65 80
Flue ømm 200 200 250 250 300 300 350 400 400 450 500 500
Appearance Width (W) mm 1,050 1,140 1,160 1,280 1,280 1,290 1,420 1,580 1,650 1,820 2,100 2,300
Length (L) mm 1,880 2,130 2,320 2,660 2,960 2,960 3,360 3,380 3,460 3,650 3,940 4,250
Height (H) mm 1,680 1,780 1,900 2,000 2,000 2,050 2,100 2,300 2,500 2,600 2,700 2,850

For heating and hot water circulation (60℃~70℃, 50℃~70℃ for SEV-1300 and above)

Item＼Type Unit SEH-100 SEH-200 SEH-300 SEH-400 SEH-500 SEH-600 SEH-800 SEH-1000 SEH-1300 SEH-1600 SEH-2000 SEH-2500
Rated heat output kcal/h 100,000 200,000 300,000 400,000 500,000 600,000 800,000 1,000,000 1,300,000 1,600,000 2,000,000 2,500,000
Circulating amount ㎥/h 10 20 30 40 50 60 80 100 65 80 100 125
Max. operating water head pressure mAq 100 (10kg/㎠)
Head pressure loss mAq 0.7 1.1 1.4 1.7 2.0 2.2 2.7 3.1 3.2 3.5 3.9 4.3
Heat exchanger Material Copper tube
Heating inlet/outlet diameter A 40 50 65 80 80 100 100 125 125 125 150 150

for Hot water supply (5℃~65℃)

Item＼Type Unit SEH-100 SEH-200 SEH-300 SEH-400 SEH-500 SEH-600 SEH-800 SEH-1000 SEH-1300 SEH-1600 SEH-2000 SEH-2500
Rated heat output kcal/h 100,000 200,000 300,000 400,000 500,000 600,000 800,000 1,000,000 1,300,000 1,600,000 2,000,000 2,500,000
Amount of hot water ㎥/h 1.7 3.3 5 6.5 8.3 10 13.3 16.7 21.7 26.7 33.3 41.6
Max. operating water head pressure mAq 100 (10kg/㎠)
Head pressure loss mAq 0.5 0.8 1.1 1.1 1.2 1.4 1.5 1.7 2.5 3.3 3.6 4.0
Heat exchanger Material Copper tube
Hot water inlet and outlet diameter A 20 25 32 32 40 40 50 65 65 80 80 100

for Hot water supply (25℃~65℃)

Item＼Type Unit SEH-100 SEH-200 SEH-300 SEH-400 SEH-500 SEH-600 SEH-800 SEH-1000 SEH-1300 SEH-1600 SEH-2000 SEH-2500
Rated heat output kcal/h 100,000 200,000 300,000 400,000 500,000 600,000 800,000 1,000,000 1,300,000 1,600,000 2,000,000 2,500,000
Amount of hot water ㎥/h 2.5 5 7.5 10 12.5 15 20 25 32.5 40 50 62.5
Max. operating water head pressure mAq 100 (10kg/㎠)
Head pressure loss mAq 0.7 0.8 1.2 1.3 1.5 1.7 1.8 2.0 2.3 2.6 3.0 3.5
Heat exchanger Material Copper tube
Hot water inlet and outlet diameter A 20 32 32 40 50 50 65 65 80 100 100 125

The above specification performance table is based on the following :

  • Steam pressure 0.7MPa[7kg/㎠], steam enthalpy 2.76MJ/kg[660.8kcal/kg], water temperature 293˚k(20˚C)
  • Low calorific value of fuel
    1. Diesel : 43.12MJ/kg (10,300kcal/kg)
    2. Boiler kerosene : 43.4MJ/kg (10,368kcal/kg)
    3. City gas(13A) : 41.45MJ/Nm3 (9,900kcal/Nm3)
  • This specification performance table may be changed without notice for quality improvement.
view table

Sekwang Boiler Co.,Ltd.Sekwang Boiler Co.,Ltd.