Thermostatic mixing valve

VTA350, VTA550

  • Anti-scald and anti-legionella protection.
  • Accuracy of regulation.
  • Suitable for HWC (hot water circulation).
The series VTA350/VTA550 for domestic hot water distribution, anti-scalded tempering in line applications and where further temperature control devices have been installed at the water taps. These series of valves are also suitable for domestic hot water installations equipped with HWC (hot water circulation).
Product range

VTA351, Internal thread

Art.no. Reference Temp. range [⁰C] Kvs Connection E A [mm] B [mm] C [mm] D [mm] Weight [kg]
31104900 VTA351 35 - 60 1,6 Rp ¾" 70 42 52 46 0,48

VTA352/VTA552, External thread

Art.no. Reference Temp. range [⁰C] Kvs Connection E A [mm] B [mm] C [mm] D [mm] Weight [kg]
31660100 VTA552 20 - 43 3,2 G 1" 84 50 60 56 0,78
31660400 VTA552 20 - 43 3,5 G 1¼" 84 50 60 56 0,87
31105000 VTA352 35 - 60 1,5 G ¾" 70 42 52 46 0,45
31105100 VTA352 35 - 60 1,6 G 1" 70 42 52 46 0,48
31660200 VTA552 45 - 65 3,2 G 1" 84 50 60 56 0,78
31660500 VTA552 45 - 65 3,5 G 1¼" 84 50 60 56 0,87
31660300 VTA552 50 - 75 3,2 G 1" 84 50 60 56 0,78
31660600 VTA552 50 - 75 3,5 G 1¼" 84 50 60 56 0,87

VTA352, External thread and integrated check valves

Art.no. Reference Temp. range [⁰C] Kvs Connection E A [mm] B [mm] C [mm] D [mm] F [mm] Weight [kg] Note
31106100 VTA352 35 - 60 1,5 G 1" 70 42 52 46 74 0,48 Two checkvalves for both hot and cold water are integrated

VTA353, Compression fittings

Art.no. Reference Temp. range [⁰C] Kvs Connection E A [mm] B [mm] C [mm] D [mm] Weight [kg]
31105200 VTA353 35 - 60 1,5 CPF 22 mm 70 42 52 46 0,57

VTA552, with adapters

Art.no. Reference Temp. range [⁰C] Kvs Connection F A [mm] B [mm] C [mm] D [mm] Weight [kg] Note
31660700 VTA552 20 - 43 3,0 R ¾" 154 85 60 56 1,14 Two check valves for both hot and cold water are included.
31661000 VTA552 20 - 43 3,4 R 1" 164 90 60 56 1,51 Two check valves for both hot and cold water are included.
31660800 VTA552 45 - 65 3,0 R ¾" 154 85 60 56 1,14 Two check valves for both hot and cold water are included.
31661100 VTA552 45 - 65 3,4 R 1" 164 90 60 56 1,51 Two check valves for both hot and cold water are included.
31660900 VTA552 50 - 75 3,0 R ¾" 154 85 60 56 1,14 Two check valves for both hot and cold water are included.
31661200 VTA552 50 - 75 3,4 R 1" 164 90 60 56 1,51 Two check valves for both hot and cold water are included.
Installation support

Operation

Operation
VTA350
VTA550

Installation example

Installation example
Technical data

Technical data

Pressure class: PN 10
Working pressure: 1,0 MPa
max. Differential pressure, Mixing: 0,3 MPa
Temperature stability: VTA350: ±2 °C*;
VTA550: ±4 °C**;
* Valid at unchanged hot/cold water pressure, minimum flow rate 4 l/min. Minimum temperature difference between hot water inlet and mixed water outlet 10°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.
Conformity:

PED 2014/68/EU, article 4.3

Media temperature, max.: +95 °C
Media temperature VTA550 temporarily max.: +100 °C
Connections, Internal thread (Rp): EN 10226-1
Connections, External thread (G): ISO 228/1
Connections, External thread (R): EN 10226-1
Connections, Compression fitting (CPF): EN 1254-2
Material, Valve housing and other metal parts with fluid contact: Dezincification resistant brass, DZR

Conformity

Conformity
HCACL/4MS UBAList
KTW/WRAS/ACS

Dimensioning

Dimensioning
Please see data sheet
Accessories and Spare Parts

Spare parts

Art No. Reference Designation Note Data sheet Instruction manual
37000800 37000800 VTA936 ESBE VTA936 Exchange kit VTA360, 35 - 60°C VTA350, VTA360 download download
37100400 37100400 VTA955 ESBE VTA955 Exchange kit series VTA550, 20 - 43°C VTA550 download download
37100500 37100500 VTA955 ESBE VTA955 Exchange kit series VTA550, 45 - 65°C VTA550 download download
37100600 37100600 VTA955 ESBE VTA955 Exchange kit series VTA550, 50 - 75°C VTA550 download download
98080480 98080480 VTA903 ESBE VTA903 Adjusting knob, series VTA300 download download
98080420 98080420 VTA903 ESBE VTA903 Top knob, series VTA300 download download

Connection kit KTD200, KTD300

Art No. Reference Designation Note Data sheet Instruction manual
36552200 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. download download
36552400 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. download download
36552300 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. download download
36552500 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. download download

Connection kit KCD300

Art No. Reference Designation Note Data sheet Instruction manual
36552900 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. download download
Download area

Download area

Type Preview Download
Data Sheet VTA350, VTA550 download
Installation instruction VTA350 download
Installation Instruction VTA550 download
Certificate Declaration of Conformity VTA350, VTA550 download
Certificate Building Product Declaration BPD3, VTA350 download
Certificate Building Product Declaration BPD3, VTA550 download
Certificate KIWA-21-DW-10120, VTA350 download
Certificate KIWA-21-DW-10122, VTA550 download
Certificate EAC certificate (RU) download
Approval PZH-certificate (PL) download
Image VTA351, high res download
Image VTA352, high res download
Image VTA352 with Check Valves, high res download
Image VTA353, high res download
Image VTA552, high res download
Image VTA552 with adapters, high res download
2D Image VTA352 with check valves download
2D Image VTA550 download
2D Image VTA552 with adapters download
3D drawing (stp file) VTA352 G ¾" download
3D drawing (stp file) VTA352 CV G 1" download
3D drawing (stp file) VTA552 G 1" download
3D drawing (stp file) VTA552 R ¾" download
Applications

Applications

Indirect potable hot water temperature control with a PHW controller CRS130.

Indirect potable hot water temperature control with a PHW controller CRS130 and flow limitation valve VTF320