VTC412, Fixed temperature VTC422, Adjustable temperature
VTC412, Fixed temperature VTC422, Adjustable temperature

Load valve

VTC400

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.

  • accurate control of the return water temperature
  • high kvs value
  • available fixed and adjustable temperature setting
  • wide range of temperatures

Product range

VTC412 front_A-01
VTC412
VTC412 side_A-01
VTC422 front_A-01
VTC422
VTC422 side_A-01
Series VTC412, Fixed temperature
Art.no.ReferenceDNKvs** Kvs-value in m3/h at a pressure drop of 1 bar.ConnectionOpening temperature**** Temperature stability conditions are applicable when hot water is >10°C warmer than mixed temperature and cold water is >20°C colder than mixed temperatureA mmB mmC mmD mmWeight kgNTCNTC = National Trade Code
51060100VTC412255.5G 1"50 ± 4°C**846248560.69 
51060200VTC412255.5G 1"55 ± 4°C**846248560.69 
51060300VTC412255.5G 1"60 ± 4°C**846248560.69 
51060400VTC412255.5G 1"65 ± 4°C**846248560.69 
51060500VTC412255.5G 1"70 ± 4°C**846248560.69 
Series VTC422, Adjustable temperature
Art.no.ReferenceDNKvs** Kvs-value in m3/h at a pressure drop of 1 bar.ConnectionOpening temperature**** Temperature stability conditions are applicable when hot water is >10°C warmer than mixed temperature and cold water is >20°C colder than mixed temperatureA mmB mmC mmD mmWeight kgNTCNTC = National Trade Code
51060600VTC422254.5G 1"50-70 ± 4°C**846260560.77 

Installation support

Installation examples
VTC300_VTC500_Mixing-01
Mixing
VTC300_VTC500Diverting-01
Diverting
VTD300_1-01
Installation instruction VTC400

Technical data

Suitable application area
Recommended
  • Heating
Technical data
Pressure class: PN10 
Media temperature, max.: +100 °C
min.: 0 °C
Temperature stability  ± 4°C** 
** Temperature stability conditions are applicable when hot water is >10°C warmer than mixed temperature and cold water is >20°C colder than mixed temperature. 
Max. differential pressure, Mixing: 100 kPa
Diverting: 30 kPa
Leakrate A - AB: Tight sealing 
Leakrate B - AB: Tight sealing 
Rangeability Kv/Kv min: 100 
Connections, External thread: 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 
Flow pattern Mixing_A-01
Diverting_A-01
Dimensioning $name
Dimensioning guide - Please see data sheet

Accessories and spare parts

Spare parts
ImageArt.no.ReferenceDesignationNational trade codeNoteData sheetInstructions manual

VTC941

Exchange kit VTC941, series VTC412, 50°C.
57080100VTC941Exchange kit series VTC412, 50°C    

VTC941

Exchange kit VTC941, series VTC412, 55°C.
57080200VTC941Exchange kit series VTC412, 55°C    

VTC941

Exchange kit VTC941, series VTC412, 60°C.
57080300VTC941Exchange kit series VTC412, 60°C    

VTC941

Exchange kit VTC941, series VTC412, 65°C.
57080400VTC941Exchange kit series VTC412, 65°C    

VTC941

Exchange kit VTC941, series VTC412, 70°C.
57080500VTC941Exchange kit series VTC412, 70°C    

VTC942

Exchange kit VTC942, series VTC422, 50 - 70°C.
57080600VTC942Exchange kit series VTC422, 50 - 70°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 VTC400
Installation instruction VTC400
2D Image VTC412
2D Image VTC422
3D drawing (stp file) VTC412, DN25
3D drawing (stp file) VTC422, DN25

Related products

VTC311

VTC300

The series VTC300 is a compact and accurate load valve used for solid fuel boilers up to 30 kW.
VTC311
Image

UTC300

Series UTC300 are the double valves for return temperature control.
UTC318
VTC511

VTC500

The series VTC500 is a thermic valve used for solid fuel boilers up to 150 kW.
VTC511
LTC261

LTC200

The series LTC200 is a load unit with integrated high efficiency pump.
LTC200
ATA200

ATA200

The series ATA200 is a control device for regulating the temperature of solid fuel boilers.
ATA200
CTF151

CTF150

The series CTF150 is typically used for on/off control of circulation pumps and load units.
CTF150

Quick Links