Load valve
VTC400
- accurate control of the return water temperature
- high kvs value
- available fixed and adjustable temperature setting
- wide range of temperatures
The ESBE thermic valves series VTC400 are designed for applications with boilers, which require return temperature control. Maintaining a high and stable return temperature means a higher level of boiler efficiency, reduced tarring and increased life span of boiler.
Product range
VTC412, Fixed temperature
| Art.no. | Reference | DN | Kvs | Opening temperature | Connection | A [mm] | B [mm] | C [mm] | D [mm] | Weight [kg] |
| 51060100 | VTC412 | 25 | 5,5 | 50 ± 4°C | G 1" | 84 | 62 | 48 | 56 | 0,69 |
| 51060200 | VTC412 | 25 | 5,5 | 55 ± 4°C | G 1" | 84 | 62 | 48 | 56 | 0,69 |
VTC422, Adjustable temperature
| Art.no. | Reference | DN | Kvs | Opening temperature range | Connection | A [mm] | B [mm] | C [mm] | D [mm] | Weight [kg] |
| 51060600 | VTC422 | 25 | 4,5 | 50‒70 ± 4°C | G 1" | 84 | 62 | 60 | 56 | 0,77 |
Installation support
Installation examples
Documents
| Name | Download |
| Installation instruction VTC400 |
|
Technical data
Technical data
| Pressure class: | PN10 |
| Differential pressure, max.: | Mixing: 100kPa; Diverting: 30kPa |
| Leakrate A - AB: | Tight sealing |
| Leakrate B - AB: | Tight sealing |
| Rangeability: | 100 |
| Connections: | External thread (G), ISO 228/1 |
| Media, Heating water: | in accordance with VDI2035 |
| Media, Water/Glycol mixtures: | max. 50 % |
| Media, Water/Ethanol mixtures: | max. 28 % |
| Media temperature, max.: | +100 °C |
| Media temperature, min.: | 0 °C |
| Temperature stability**: | ± 4 °C |
| **Temperature stability conditions are applicable when hot water from primary circuit is >10°C warmer than mixed temperature and return water from secondary circuit is >20°C colder than mixed temperature. | |
| Material, Valve housing and other metal parts with fluid contact: | Dezincification resistant brass, DZR |
Conformity
SI 2016 No. 1105 (UK)
Flow pattern
Dimensioning
Accessories and spare parts
Spare parts
| Art No. | Reference | Designation | Note | Instruction manual | |
 |
57080100 | VTC941 | ESBE VTC941 Exchange kit series VTC412, 50°C | VTC400 | |
|
57080200 | VTC941 | ESBE VTC941 Exchange kit series VTC412, 55°C | VTC400 | |
|
57080300 | VTC941 | ESBE VTC941 Exchange kit series VTC412, 60°C | VTC400 | |
|
57080400 | VTC941 | ESBE VTC941 Exchange kit series VTC412, 65°C | VTC400 | |
|
57080500 | VTC941 | ESBE VTC941 Exchange kit series VTC412, 70°C | VTC400 | |
 |
57080600 | VTC942 | ESBE VTC942 Exchange kit series VTC422, 50 - 70°C | VTC400 | |
Download area
Download area
| Type | Preview | Download |
| Data Sheet | VTC400 |
|
| Installation instruction | VTC400 |
|
| Certificate | Declaration of Conformity, VTC400 |
|
| Certificate | Declaration of Conformity UKCA, VTC400 |
|
| Certificate | Building Product Declaration BPD3, VTC400 |
|
| Certificate | EAC certificate (RU), VTC400 |
|
| Certificate | Certificate of conformity UA, VTC400 |
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| Image | VTC412, high res |
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| Image | VTC422, high res |
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| 2D Image | VTC412 |
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| 2D Image | VTC422 |
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| 3D drawing (stp file) | VTC412, DN25 |
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| 3D drawing (stp file) | VTC422, DN25 |
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Quick links
Quick links
| ESBE APP |
| ESBE Catalogue Online |
| FAQ Solid fuel products |