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air-heaters: water heaters

Duct heater NKV

Ducted water heaters for heating supply air in ventilation systems with a rectangular cross-section.

The casing is made of galvanized steel, tubular collectors made of copper tubes, the surface of the heat exchanger is made of aluminum plates. Heaters come in a 2-, 3- or 4-row variant. They are designed for operation at a maximum working pressure of 1.6 MPa (16 bar) and a maximum water temperature of + 90 ° C. In the inlet stub of the heater there is a possibility of installing a temperature sensor to protect the heater against freezing.

Type Sizes [mm] Rows of pipes Weight [kg]
B B1 B2 B3 H H1 H2 H3 L L1 L2 K
NKV 400×200-2 400 420 440 565 200 220 240 150 200 43 43 G 3/4″ 2 7,6
NKV 400×200-4 400 420 440 565 200 220 240 150 200 38 65 G 3/4″ 4 8,1
NKV 500×250-2 500 520 540 665 250 270 290 200 200 43 43 G 3/4″ 2 15,8
NKV 500×250-4 500 520 540 665 250 270 290 200 200 38 65 G 3/4″ 4 16,3
NKV 500×300-2 500 520 540 665 250 320 340 250 200 43 43 G 1″ 2 11,5
NKV 500×300-4 500 520 540 665 300 320 340 250 200 38 65 G 1″ 4 12,0
NKV 600×300-2 600 620 640 765 300 320 340 250 200 43 43 G 1″ 2 21,8
NKV 600×300-4 600 620 640 765 300 320 340 250 200 38 65 G 1″ 4 22,3
NKV 600×350-2 600 620 640 765 300 370 390 300 200 43 43 G 1″ 2 22,4
NKV 600×350-4 600 620 640 765 350 370 390 300 200 38 65 G 1″ 4 22,9
NKV 700×400-2 700 720 740 865 350 420 440 350 200 36 47 G 1″ 2 27,8
NKV 700×400-3 700 720 740 865 400 420 440 350 200 42 58 G 1″ 3 28,4
NKV 800×500-2 800 820 840 965 400 520 540 450 200 36 47 G 1″ 2 36,5
NKV 800×500-3 800 820 840 965 500 520 540 450 200 42 58 G 1″ 3 37,2
NKV 900×500-2 900 920 940 1065 500 520 540 450 200 36 47 G 1″ 2 40,4
NKV 900×500-3 900 920 940 1065 500 520 540 450 200 42 58 G 1″ 3 41,2
NKV 1000×500-2 1000 1020 1040 1165 500 520 540 450 200 36 47 G 1″ 2 44,3
NKV 1000×500-3 1000 1020 1040 1165 500 520 540 450 200 42 58 G 1″ 3 45,2

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