Product Overview & Application Area
The Schönberg EPS 400 is a thermal buffer storage tank without an integrated heat exchanger for water-based heating systems. With an actual net capacity of 396 liters, it is suitable as a heating water buffer tank for hydraulic integration into suitable system concepts.
The storage tank is used in heating systems, solid fuel systems, solar thermal systems, and in system environments with combined heat and power plants. It serves as an intermediate storage for heating energy and supports orderly hydraulic separation between heat generation and heat distribution.
Technology & Equipment
The EPS 400 is designed as a buffer tank without a heat exchanger. The storage tank body is made of quality steel S235JRG2, raw on the inside and primed on the outside. It is installed standing on a base ring.
For system integration, 8 charging and discharging connections with 1 1/2 inch female thread, 4 sensor and controller connections with 1/2 inch female thread, one vent connection with 1 1/4 inch female thread, and 2 connections for electric heating cartridges with 1 1/2 inch female thread are available.
Everyday Benefits
A buffer tank supports the time-shifted use of generated heat and can hydraulically stabilize the operation of a heating system. Especially in systems with solid fuel boilers, solar thermal systems, or multiple heat sources, the tank helps to provide generated energy in a controlled manner within the heating system.
With a net capacity of 396 liters, the EPS 400 offers a practical storage volume for small to medium-sized system concepts. The diameter of 600 mm without insulation supports installation planning, while the tilting dimension of 1,570 mm without insulation must be considered during transport, installation, and plant room planning.
System Integration & Compatibility
The EPS 400 can be integrated into suitable heating, solid fuel, and solar systems. Use in the vicinity of combined heat and power plants is also possible, provided the system concept is designed accordingly.
The storage tank is intended for heating water and is not designed as a drinking water storage tank. The specific hydraulic integration, the design of the safety valve, expansion vessel, venting, and control, as well as the selection of suitable components, are carried out as part of the professional planning.
Technical data at a glance
| Storage tank type | Buffer storage tank |
| Storage volume | 396 l |
| Heat exchanger | 0 |
| Insulation | 100 mm STS EPS or 130 mm STS EPS, depending on version |
| Max. operating pressure | 5 bar |
| Max. temperature | 95 °C |
| Storage tank material | Quality steel S235JRG2, raw inside and primed outside |
| Height / tilting dimension | 1,570 mm without insulation |
| Width / diameter | 600 mm without insulation |
| Weight | 100 kg without insulation |
| Suitable for drinking water | No |
| Suitable for wood heating | Yes |
| Suitable for solar thermal | Yes |
Installation
The storage tank is set up standing on a load-bearing, level, and frost-free surface. When positioning it, consider the tilting dimension without insulation, the connection positions, sufficient installation clearances, and later accessibility for inspection and maintenance.
The hydraulic connections are made according to the system design. Electric heating cartridges may only be installed in the designated connection sockets. After installation, all threaded connections must be checked for leaks.
Notes
The type designation EPS 400 does not correspond to the exact storage capacity. The actual net capacity is 396 liters. Dimensions and connection values must be verified against the specific model before ordering, positioning, and installation.
The storage tank may only be operated within the permitted operating limits. Before working on the tank, the system must be depressurized, cooled down, and secured against accidental refilling.
Scope of delivery
- Schönberg energy buffer storage tank EPS 400 in the selected version
