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Types of Tanks


Type                                                                                        Model
Single coil heat exchanger                                                                       VTC1
Double coil heat exchanger                                                                     VTC2


Storage tanks with fixed coil heat exchangers for both circuits for use of heating and solar system. The long large
surface of coils allows efficiently spread of energy along the tank producing domestic hot water and avoiding cold
zones.The base of enamel is, free boron and silisium and hygienically complies with European standards.

Specification

  • Material of tank                                   Low carbon hot rolled steel plate DIN EN 10111-98 DD 11
  • Welding                                                 As per DIN EN 287-1
  • Cleaning of steel                                  Chemical washing
  • Internal protection                             Enamel coating, thickness 200-250µm
  • Extra Protction                                    Magnesium rod
  • Max working temp                             95 °C
  • Insulation material                           Free HCFC Polyurethane, density 44 kg/m³
  • Insulation thickness                           50mm PU for 200-600 lit
                                                                   80mm Foam Soft PU for 800-3000 lit
  • Outer jacket                                       Artificial Leather Cover, ( painted steel cover is upon request)
  • Max working pressure                     10 bar
  • Testing pressure                                13 bar
  • Electrical backup                               Max. 45 kw (3x15 kw), 380V without thermostats
    ( upon request )
  • Heat exchanger                                  Steel pipe type EN 10217-1, 25 bar @ 95 °C
  • Warranty                                             5 years
  • Standard                                              Comply with DIN 4753 and EN 12897 specifications

Model VTC1 / VTC2
Effective capacity,lit 200 300 400 500 600 800 1000 1500 2000 2500 3000
Total Height(H),mm 1320 1210 1450 1800 2040 2100 2070 2300 2230 2220 2540
Total Dia.(D),mm 590 700 750 750 750 900 1000 1120 1260 1460 1460
Net weight,kg VTC1 94 123 153 211 219 262 285 456 530 670 810
VTC2 109 143 169 231 247 290 323 476 575 755 895

N.B. Storage tank capacity up to 7000 Lit is upon request


Vertical Storage Tanks, with fixed heat exchanger



Identification and hydraulic connections


Model VTC1
Capacity 200 300 400 500 600 800 1000 1500 2000 2500/3000
Heat exchanger
Inlet N6 11/4" 11/2"
Outlet N8 11/4" 11/2"
Sanitary water
Inlet cold N9 3/4" 1” 11/4" 11/2"
Outlet hot N5 3/4" 1” 11/4" 11/2"
Circulation N7 N7 3/4" 1” 11/4" 11/2"
Model VTC2 11/2"
Capacity 200 300 400 500 600 800 1000 1500 2000 3000
Heat exchanger
Inlet lower N9 11/4" 11/2"
Outlet lower N10 11/4" 11/2"
Inlet upper N6 11/4" 11/2"
Outlet upper N8 11/4" 11/2"
Sanitary water
Inlet cold N11 3/4" 1” 11/4" 11/2"
Outlet hot N5 3/4" 1” 11/4" 11/2"
Circulation N7 3/4" 1” 11/4" 11/2"
Model VTC1/VTC2
Various
Anode Magnesium N10/N12 11/4"
Thermometer N1 1/2"
Sensors N4-N13 1/2"
Electrical back-up N2 11/2" 2"
Cleaning flange N3 4" 5"

Vertical Storage Tanks, with fixed heat exchanger


Heat exchanger technical characteristics


Model VTC1
Storage Capacity,lit 200 300 400 500 600 800 1000 1500 2000 2500 3000
Exchanger content ,lit 13 14 15.6 22 22 27 27 35 42 63 63
Exchanger surface area,m² 1.46 1.6 1.8 2.46 2.46 2.97 2.97 3.86 4.65 7.2 7.2
Exchanger flow rate,m³/h 5 5 6.5 6.5 6.5 8 8 9.5 9.5 9.5 9.5
Pressure drop of Heat Exh.mbar 10 12 17 22 22 38 38 48 66 97 97
Thermal loss *,Kwh/24h 1.16 1.72 1.94 2.15 2.8 3.9 5.23 6.65 7.19 9.71 11.13

* At Storage water temperature 60 °C and Ambient temperature 20 °C


Storage Capacity,lit 200 30 400 500 600 800 1000 1500 2000 2500 3000
Lower Exchanger content ,lit 9 12 13 22 22 27 27 35 42 63 63
Upper Exchanger content,lit 7 8 9 13 13 14 14 18 20 31 31
Lower Exchanger surface area,m² 1.02 1.3 1.46 2.46 2.46 2.97 2.97 3.86 4.65 7.2 7.2
Upper Exchanger surface area, m² 0.73 0.9 1.02 1.46 1.46 1.58 1.58 1.86 2.26 3.5 3.5
Lower Exchanger flow rate,m³/h 5 5 6.5 6.5 6.5 8 8 9.5 9.5 9.5 9.5
Upper Exchanger flow rate,m³/h 2 3 3 4 4 5 5 6 6 8 8
Pressure drop of L. Heat Exh.mbar 10 12 19 22 22 38 38 48 66 97 97
Pressure drop of U. Heat Exh.mbar 2 4 6.5 8 8 12 12 19 22 33 33
Thermal loss *,Kwh/24h 1.16 1.72 1.94 2.15 2.8 3.9 5.23 6.65 7.19 9.71 11.13

* At Storage water temperature 60 °C and Ambient temperature 20 °C


Model VTC1/VTC2 H. Exchanger Inlet temperature,°C H. Exchanger Power**,Kw Hot Water Supply,L/h Upper H. Exch.Power**,Kw Hot Water Supply,L/h
200 70 32,6 560 17.4 300
80 51.7 890 22.1 380
90 62.2 1070 36.6 630
300 70 34.3 590 20.9 360
80 54.1 930 32.5 560
90 70.9 1220 45.3 780
400 70 36.9 635 23.8 410
80 57.0 980 42.4 730
90 75.0 1290 54.1 930
500&600 70 42.2 725 25.6 440
80 65.1 1120 44.8 770
90 87.8 1510 57 980
800&1000 70 48.3 830 32 550
80 81.4 1400 54.1 930
90 102.3 1760 66.9 1150
1500 70 56.4 970 37 635
80 95.3 1640 57 980
90 120.3 2080 75 1290
2000 70 63.3 1090 42.1 725
80 107 1840 65.1 1120
90 138.4 2380 85.5 1470
2500&3000 70 69.7 1200 52.9 910
80 127.9 2200 71.5 1230
90 175.8 3020 122.1 2100


Type                                                                   Model
Electrical water heater                                        EVT


In some applications where the electrical energy is the only possible or preferable source for water heating,
EVT electrical vertical water heaters standard capacities up to 3000Lit are used with the following specifications:

  • Material of tank                                  Low carbon hot rolled steel plate DIN EN 10111-98 DD 11
  • Internal protection                            Enamel coating, thickness 200µm-250µm
  • Working pressure                              10 bar
  • Testing pressure                                 13 bar
  • Max working temp                            95°C
  • Extra Protection                                 Magnesium rod
  • Insulation                                           Free CFC Polyurethane, density 44 kg/m³
  • Insulation thickness                         50mm PU for 200-600 lit 80mm Foam Soft PU for 800-3000 lit
  • Outer jacket                                        Artificial Leather Cover, painted steel cover upon request
  • Electrical heating elem.                  Stainless steel, capacity (Kw) upon customer’s request
    (capacity range 2….45Kw) 230 - 230/380V

Features:
The control box is fixed at the water heater, made of Polyester with degree of protection IP54. Three electrical heating
elements are operating by electro-magnet contactors signal from thermostats or individually by manual external
disconnecting switches. The control box contains one main input fuse, safety thermostats and power pilot lights.


Model EVT
Effective capacity,Lit 200 300 400 500 600 800 1000 1500 2000 2500 3000
Total Height(H),mm 1320 1210 1450 1800 2040 2100 2070 2300 2230 2220 2540
Total Dia.(D),mm 590 700 750 750 750 900 1000 1120 1260 1460 1460
Net weight,Kg 75 92 126 148 162 226 251 346 403 490 550