Thermostatic mixing valve
VTS520
- High temperature resilience.
- Anti-scald and anti-legionella protection.
- Accuracy of regulation.
- Suitable for HWC (hot water circulation).
The series VTS520 for domestic hot water distribution connected to solar heating systems, where the high water temperatures require extra durable components. VTS520 has asymmetrical flow pattern. These series of valves are also suitable for domestic hot water installations equipped with HWC (hot water circulation).
Product range
VTS522, External thread
| Art.no. | Reference | Temp. range [⁰C] | Kvs | Connection E | A [mm] | B [mm] | C [mm] | D [mm] | Weight [kg] |
| 31720100 | VTS522 | 45 - 65 | 3,2 | G 1" | 84 | 62 | 60 | 56 | 0,86 |
| 31720300 | VTS522 | 45 - 65 | 3,5 | G 1¼" | 84 | 62 | 60 | 56 | 0,95 |
| 31720200 | VTS522 | 50 - 75 | 3,2 | G 1" | 84 | 62 | 60 | 56 | 0,86 |
| 31720400 | VTS522 | 50 - 75 | 3,5 | G 1¼" | 84 | 62 | 60 | 56 | 0,95 |
VTS522, with adapters
| Art.no. | Reference | Temp. range [⁰C] | Kvs | Connection F | A [mm] | B [mm] | C [mm] | D [mm] | Weight [kg] | Note |
| 31720500 | VTS522 | 45 - 65 | 3,0 | R ¾" | 154 | 97 | 60 | 56 | 1,22 | Two check valves for both hot and cold water are included. |
Installation support
Operation
Installation example
Documents
| Name | Download |
| Installation instruction VTS520 |
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Technical data
Technical data
| Pressure class: | PN 10 |
| Working pressure: | 1,0 MPa |
| max. Differential pressure, Mixing: | 0,3 MPa |
| Temperature stability: | ±4 °C * Valid at unchanged hot/cold water pressure, minimum flow rate 9 l/min. Minimum temperature difference between hot water inlet and mixed water outlet 10°C. |
| Media temperature, continuosly max.: | +110 °C |
| Media temperature, temporarily max.: | +120 °C |
| Connections, External thread (G): | ISO 228/1 |
| Connections, External thread (R): | EN 10226-1 |
| Material, Valve housing and other metal parts with fluid contact: | Dezincification resistant brass, DZR |
Conformity
SI 2016 No. 1105 (UK)
4MS/KTW-BWGL
ÜA R-15.2.4-22-17605 (AT)
Dimensioning
Accessories and spare parts
Connection kit KTD200, KTD300
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
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36552200 | KTD212 | Connection kit with external thread R ¾" for use on externally threaded valves G 1". | One check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. | |
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36552300 | KTD212 | Connection kit with external thread R 1" for use on externally threaded valves G 1¼". | One check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. | |
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36552400 | KTD312 | Connection kit with external thread R ¾" for use on externally threaded valves G 1". | Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. | |
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36552500 | KTD312 | Connection kit with external thread R 1" for use on externally threaded valves G 1¼". | Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. | |
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Connection kit KCD300
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
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36552900 | KCD313 | Connection kit with compression fittings CPF 22mm for use on externally threaded valves G1". | Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. | |
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Spare parts
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
 |
37120100 | VTS952 | ESBE VTS952 Exchange kit series VTS520, 45 - 65°C | VTS520 | |
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37120200 | VTS952 | ESBE VTS952 Exchange kit, series VTS520, 50 - 75°C | VTS520 | |
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Download area
Download area
| Type | Preview | Download |
| Data Sheet | VTS520, VTS550 |
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| Installation instruction | VTS520 |
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| Certificate | Declaration of Conformity, VTS520 |
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| Certificate | Declaration of Conformity UKCA, VTS520 |
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| Certificate | Building Product Declaration BPD3, VTS520 |
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| Certificate | ÜA R-15.2.4-22-17605 (AT), VTS520 |
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| Certificate | KIWA-21-DW-10122, VTS520 |
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| Certificate | EAC certificate (RU), VTS520 |
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| Certificate | UKRSEPRO certificate (UA), VTS520 |
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| Approval | PZH-certificate (PL), VTS520 |
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| Image | VTS522, high res |
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| Image | VTS522 with adapters, high res |
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| Image | VTS523 with adapters, high res |
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| 2D Image | VTS520 |
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| 2D Image | VTS520 with adapters |
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Related materials
Related products
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VTR300, VTR500 | The series VTR300 and VTR500 for hot water circulation installations. | Data sheet | Installation instruction | |
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VTA330 | The series VTA330 for domestic hot water distribution, anti-scalded point-of-use applications. | Data Sheet | Installation instruction | |
 |
VCA100 | ESBE Check valves series VCA100, check valves for internal use in pipes. | Data Sheet | ||
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VTD300 | The series VTD300 are thermostatic valves used for diverting applications. | Data Sheet | Installation instruction | |
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VMD300 | The series VMD300 with adjustable set temperature for dual source domestic hot water. | Data sheet | Installation instruction | |
 |
VTA350, VTA550 | The series VTA350/VTA550 for domestic hot water distribution, anti-scalded tempering in line applications. | Data Sheet | Installation instruction | Installation Instruction |
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VMC300 | Series VMC300 for dual source domestic hot water. | Data sheet | Installation instruction | |
 |
VTA370, VTA570 | The series VTA370 and VTA570 are the number one choice for heating and cooling applications. | Data Sheet | Installation instruction | |
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VTA320, VTA520 | The series VTA320/VTA520 for domestic hot water distribution, anti-scalded tempering in line applications. | Data Sheet | Installation instruction | Installation Instruction |
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VSB100 | ESBE Safety valves series VSB100 are used to secure domestic hot water systems against excess pressure. | Data Sheet | Installation instruction |
Applications
Applications
Solar system with maximum use of the stratification in the storage tank.