Product Overview & Application Area
The Defro DBO 200 is a floor-standing, thermally insulated storage tank with a nominal volume of 200 liters and a large-surface heat exchanger. It is used to absorb and transfer thermal energy as needed within professionally planned heating systems.
With its compact external dimensions, the storage tank is particularly suitable for systems where a limited storage volume is to be combined with a comparatively large heat exchanger surface. The tank volume is not intended for direct storage of drinking water.
Technology & Equipment
The integrated heat exchanger has a surface area of 1.9 m² and a content of 9.4 liters. The specified heat exchanger output is 41.8 kW at a specified flow rate of 1,020 liters per hour. The actually transferable output depends on the system temperatures, the volume flow, and the hydraulic integration.
Several side connection positions allow flexible integration into different system concepts. In addition, sensor connections are available at various heights. A separate sleeve can be used for an optional electric heating element if the design is suitable.
Everyday Benefits
The vertical cylindrical design requires only a comparatively small footprint. The removable thermal insulation facilitates installation and reduces heat losses during operation. Different connection and sensor positions make it easier to adapt to the respective heating system.
The energy efficiency class C and a standby loss of 84.6 watts characterize the energy properties of the storage tank.
System Integration & Compatibility
The Defro DBO 200 can be used as a thermal storage tank in closed heating systems. It can be integrated, for example, in conjunction with heating boilers or other suitable heat generators, provided that the volume, temperatures, pressure conditions, and hydraulics are properly designed.
The assignment of the connections, media circuits, and the heat exchanger must be checked against the actually delivered version before installation. The storage tank does not replace system planning or hydraulic design.
Technical data at a glance
| Nominal volume |
200 liters |
| Number of heat exchangers |
1 |
| Maximum temperature |
90 °C |
| Maximum operating pressure |
3 bar |
| Height |
1,262 mm |
| Outer diameter including insulation |
675 mm |
| Tank diameter |
505 mm |
| Empty weight |
approx. 58 kg |
| Suitable for drinking water |
No, not for direct domestic hot water storage |
Installation
Transport, setup, hydraulic connection and initial commissioning must be carried out by qualified specialist personnel. The tank must be installed vertically on a level, dry, frost-free and permanently load-bearing surface.
When the tank is completely full, a load of approximately 258 kg must be expected without additional attachments. Safety valve, expansion vessel, venting, drainage and pipe sizing must be designed according to the specific system.
Notes
The maximum operating pressure of 3 bar and the maximum medium temperature of 90 °C must not be exceeded. No shut-off device may be installed between the tank and the safety valve.
The heat exchanger performance data do not replace hydraulic or thermal design. Before installation and commissioning, the model, connection type, media routing and operating limits must be checked on the type plate.
Scope of delivery
- 1 × Defro DBO 200 tank with thermal insulation