VTA372, External thread VTA377, Pump flange and external thread VTA378, Rotating nut and external thread VTA572, External thread VTA577, Pump flange and external thread VTA578, Rotating nut and external thread
VTA372, External thread VTA377, Pump flange and external thread VTA378, Rotating nut and external thread VTA572, External thread VTA577, Pump flange and external thread VTA578, Rotating nut and external thread

Thermostatic mixing valve

VTA370, VTA570

The series VTA370 and VTA570 are the number one choice for heating and cooling applications. The valves provide a scald safe function, which is important in order to protect e.g. under floor heating pips and also the floor itself from to uncontrolled rise of temperature. 
  • High flow capacity
  • Protection against excess temperatures.

Product range

$name
VTA372/VTA572
$name
VTA578 front_A-01
VTA377/VTA577, VTA378/VTA578
VTA578 side_A-01
Series VTA372/VTA572, External thread
Art.no.ReferenceTemperature range °CKvs** Kvs-value in m3/h at a pressure drop of 1 bar.Connection EConnection FA mmB mmC mmD mmWeight kgNoteReplacesNTCNTC = National Trade Code
31700100VTA57210-304.5G 1" 846260560.86   
31700400VTA57210-304.8G 1¼" 846260560.95   
31200100VTA37220-553.4G 1" 704252460.44   
31702100VTA57220-554.5G 1" 846260560.86   
31702200VTA57220-554.8G 1¼" 846260560.95   
31200400VTA37230-703.4G 1" 704252460.48 31105400 
31702500VTA57230-704.5G 1" 846260560.86 31700300 
31702600VTA57230-704.8G 1¼" 846260560.95 31700600 
Series VTA377/VTA577, Pumpflange and external thread
Art.no.ReferenceTemperature range °CKvs** Kvs-value in m3/h at a pressure drop of 1 bar.Connection EConnection FA mmB mmC mmD mmWeight kgNoteReplacesNTCNTC = National Trade Code
31200200VTA37720-553.4G 1"PF 1½"864252570.58   
31702300VTA57720-554.5G 1"PF 1½"1006260570.99   
Series VTA378/VTA578, Rotating nut and external thread
Art.no.ReferenceTemperature range °CKvs** Kvs-value in m3/h at a pressure drop of 1 bar.Connection EConnection FA mmB mmC mmD mmWeight kgNoteReplacesNTCNTC = National Trade Code
31200300VTA37820-553.4G 1"RN 1"784252560.48   
31702400VTA57820-554.5G 1"RN 1"936260560.91   

Installation support

Operation
VTA320_GB_A-01
VTA370
VTA520 VTS520_GB_A-01
VTA570
Installation examples
VTA370_VTA570_1_B-01
VTA370_VTA570_2_B-01
VTA370_VTA570_6_B-01
VTA370_VTA570_5_B-01
VTA370_VTA570_3_B-01
Installation instruction VTA370/VTA570

Technical data

Suitable application area
Recommended
  • Cooling
  • Floor heating
  • Radiator heating
Technical data
Pressure class: PN 10 
Working pressure: 1.0 MPa
Max. differential pressure, mixing: VTA570 0.3 MPa
VTA370 0.1 MPa
Capacity diagram: see product catalogue 
Media temperature, Temp. range 10-30°C, max.: 65 °C
Temp. range 20-55, 30-70°C, continuously max.: 95 °C
Temp. range 20-55, 30-70°C, temporarily max.: 100 °C
min.: 0 °C
Temperature stability Temp. range 10-30°C: ± 2 °C
Temp. range 20-55, 30-70°C: ± 3 °C
Connection, External thread (G): ISO 228/1 
Material, Valve housing and other metal parts with fluid contact: Dezincification resistant brass, DZR 
Conformity PED 2014/68/EU, article 4.3 
Valves are designed for Designed for_VTA370_570_en_D

Accessories and spare parts

Connection kits
ImageArt.no.ReferenceDesignationNational trade codeNoteData sheetInstructions manual

KCD313

Connection kit with compression fittings for use on externally threaded valves.
36552800KCD313Valve thread G ¾" - Connection CPF 15mm Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KCD313

Connection kit with compression fittings for use on externally threaded valves.
36553100KCD313Valve thread G ¾" - Connection CPF 15mm Two check valves included. Nickel-plated. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KCD313

Connection kit with compression fittings for use on externally threaded valves.
36552900KCD313Valve thread G1" - Connection CPF 22mm Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KCD313

Connection kit with compression fittings for use on externally threaded valves.
36553200KCD313Valve thread G1" - Connection CPF 22mm Two check valves included. Nickel-plated. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KCD313

Connection kit with compression fittings for use on externally threaded valves.
36553000KCD313Valve thread G 1¼" - Connection CPF 28mm Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KCD313

Connection kit with compression fittings for use on externally threaded valves.
36553300KCD313Valve thread G 1¼" - Connection CPF 28mm Two check valves included. Nickel-plated. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312.  

KSD314

Connection kit with solder connection for use on externally threaded valves.
36553400KSD314Valve thread G1" - Connection 22mm Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KTD212

Connection kit with external thread for use on externally threaded valves.
36552200KTD212Valve thread G 1" - Connection thread R ¾" One check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KTD312

Connection kit with external thread for use on externally threaded valves.
36552400KTD312Valve thread G 1" - Connection thread R ¾" Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KTD312

Connection kit with external thread for use on externally threaded valves.
36552600KTD312Valve thread G 1" - Connection thread R ¾" Two check valves included. Nickel-plated. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KTD212

Connection kit with external thread for use on externally threaded valves.
36552300KTD212Valve thread G 1¼" - Connection thread R 1" One check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KTD312

Connection kit with external thread for use on externally threaded valves.
36552500KTD312Valve thread G 1¼" - Connection thread R 1" Two check valves included. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 

KTD312

Connection kit with external thread for use on externally threaded valves.
36552700KTD312Valve thread G 1¼" - Connection thread R 1" Two check valves included. Nickel-plated. Suits series VTS522, VTS552, VTA331, VTA532, VTA362, VTA562, VTA322, VTA522, VTA352, VTA552, VTA372, VTA572, VMC312. 
Spare parts
ImageArt.no.ReferenceDesignationNational trade codeNoteData sheetInstructions manual

VTA932

Exchange kit VTA932, 20 - 43°C.
37000500VTA932Exchange kit, 20 - 43°C   

VTA937

Exchange kit VTA937, 20 - 55°C.
37001700VTA937Exchange kit, 20 - 55°C   

VTA932

Exchange kit VTA932, 35 - 60°C.
37000400VTA932Exchange kit, 35 - 60°C   

VTA937

Exchange kit VTA937, 35 - 60°C.
37001100VTA937Exchange kit, 35 - 60°C Applies to Art.No. 31104000, 31104500 

VTA937

Exchange kit VTA937, 20 - 43°C
37001200VTA937Exchange kit, 20 - 43°C Applies to Art.No. 31104400 

VTA903

Top knob VTA903, series VTA300.
98080420VTA903Top knob, series VTA300    

VTA903

Adjusting knob VTA903, series VTA300.
98080480VTA903Adjusting knob, series VTA300    

VTA903

Handle knob VTA903, series VTA300.
98082130VTA903Handle knob, series VTA300    

VTA957

Exchange kit VTA957, series VTA570, 10 - 30°C.
37101100VTA957Exchange kit series VTA570, 10 - 30°C   

VTA957

Exchange kit VTA957, series VTA570, 20 - 43°C.
37101200VTA957Exchange kit series VTA570, 20 - 43°C   

VTA957

Exchange kit VTA957, series VTA570, 20 - 55°C.
37101500VTA957Exchange kit series VTA570, 20 - 55°C   

VTA957

Exchange kit VTA957, series VTA570, 45 - 65°C.
37101300VTA957Exchange kit series VTA570, 45 - 65°C   

Download area

Find here direct related product information for download. If you don’t find your specific need here please look further into below mentioned "Quick links" or this website's “Search” and “Support” area.
Data Sheet VTA370, VTA570
Installation instruction VTA370/VTA570
2D Image VTA570
2D Image VTA578
3D drawing (stp file) VTA372 G 1"
3D drawing (stp file) VTA378 G 1" + RN 1"
3D drawing (stp file) VTA572 G 1"
3D drawing (stp file) VTA572 G 1¼"
3D drawing (stp file) VTA578 G 1" + RN 1"

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Related applications

District heating

Oil and gas

Underfloor heating

Quick Links