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Stationary 1 MPa

Summary

Stationary 1 MPaStationary 1 MPa
OKC 300 NTR/1MPa, OKC 400 NTR/1MPa, OKC 500 NTR/1MPa, OKC 750 NTR/1MPa, OKC 1000 NTR/1MPa OKC 300 NTRR/1MPa, OKC 400 NTRR/1MPa, OKC 500 NTRR/1MPa, OKC 750 NTR/1MPa, OKC 1000 NTRR/1MPa

Character

1 MPa design
Indirect water heaters with enamelled vessel with the maximum operating pressure of 1 MPa and volumes from 300 up to 1000 litres. The water heaters are equipped with one (NTR) or two (NTRR) high performance spiral heat exchangers, receivers for regulating sensors and a flanged manhole. Hot utility water may be heated using heating water with the temperature of max. 110 °C and pressure of 1.6 MPa. Auxilliary electric heating from the accessories section of the R or SE series may be fitted into the manhole. The 6/4" neck above the lower heat exchanger is designed for additional electric heating of hot utility water using the heating unit of the TJ series from the accessories section. This additional heating is used mainly in case of connection of the water heater to the solar system. Water heaters with the volume below 500 litres are insulated by 50 mm of hard polyurethane foam. Water heaters with volumes of 750 l, 1000 l are insulated by 100 mm of soft polyurethane foam supplied separately with the vessel.
Most common use
Heating of hot utility water using heating water or in combination with electric heating for medium and large premisses, emergency water supply for heat exchange stations, bigger alternative power sources, etc.

Cut via NTR

Technical data of NTR

TypeOKC 300 NTR/1MPaOKC 400 NTR/1MPaOKC 500 NTR/1MPaOKC 750 NTR/1MPaOKC 1000 NTR/1MPa
Volume [l] 300 390 485 719 955
Diameter [mm] 670 700 700 910 1 010
Weight [kg] 108 123 143 210 274
HUW . operating pressure [MPa] 1 1 1 1 1
Heating water operating pressure [MPa] 1,6 1,6 1,6 1,6 1,6
Heating water max. temperature [°C] 110 110 110 110 110
HUW . temperature [°C] 95 95 95 95 95
Exchanger heating surface [m2] 1,45 1,8 1,9 3,7 4,5
Exchanger output [kW] 48 57 65 99 110
Output ratio acc. to DIN 4708 8,4 NL 15,2 NL 19,1 NL 30,5 NL 38,8 NL
Continuous HUW .* output [l/hod] 1170 1395 1590 2440 2715
Heat loss [kWh/24 hod] 1,68 2 2,3 3,6 3,9

HUW – heat utility water.

*) Hot utility water at 45 °C

Cut via NTRR

Technical data of NTRR

TypeOKC 300 NTRR/1MPaOKC 400 NTRR/1MPaOKC 500 NTRR/1MPaOKC 750 NTR/1MPaOKC 1000 NTRR/1MPa
Volume [l] 292 380 470 731 958
Diameter [mm] 670 700 700 910 1 010
Weight [kg] 124 138 158 198 258
HUW . operating pressure [MPa] 1 1 1 1 1
Heating water operating pressure [MPa] 1,6 1,6 1,6 1,6 1,6
Heating water max. temperature [°C] 110 110 110 110 110
HUW . temperature [°C] 95 95 95 95 95
Top exchanger heating surface [m2] 0,8 1,05 1,3 1,17 1,12
Bottom exchanger heating surface [m2] 1,55 1,8 1,9 1,93 2,45
Bottom/top exchanger output [kW] 48/26 57/31 65/40 60/33 76/32
Top exchanger output ratio acc. to DIN 4708 2,3 NL 5,7 NL 8,9 NL 6,2 NL 7,1 NL
Bottom exchanger output ratio acc. to DIN 4708 4,2 NL 9,4 NL 14,7 NL 21 NL 26 NL
Continuous HUW .* output of bottom exchanger [l/hod] 1170 1395 1590 1460 1780
Continuous HUW .* output of top exchanger [l/hod] 630 740 970 815 780
Heat loss [kWh/24 hod] 1,68 2 2,3 3,6 3,9

HUW – heat utility water.

*) Hot utility water at 45 °C

Download

Actual page from our catalogue (PDF) – assembly scheme etc. You can download Operational manuals also.