VTD322, External thread
VTD322, External thread

Diverting valve


The series VTD300 are thermic valves used for diverting applications. When the incoming fluid temperature is below the nominal diverting temperature it is diverted to the B port, when the incoming fluid temperature is above the nominal diverting temperature it is diverted to the A port.
  • Fast change-over.
  • Increased utilization of energy.
  • No need for electrical installation.

Product range

VTD300 front_A-01
VTD300 side_A-01
Series VTD322, External thread
Art.no.ReferenceDNKvs** Kvs-value in m3/h at a pressure drop of 1 bar.ConnectionChangeover point °CA mmB mmC mmD mmWeight kgNoteNTCNTC = National Trade Code
31600100VTD322203.6G 1"45704242460.45  
31600200VTD322203.6G 1"50704242460.45  
31600300VTD322203.6G 1"60704242460.45  
31600400VTD322203.6G 1"70704242460.45  

Installation support

Installation examples
Installation instruction VTD300

Technical data

Suitable application area
  • Heating
  • Potable water
  • Solar heating
  • Zone
Technical data
Pressure class: PN 10 
Change-over point, accuracy: ±1 °C
Diverting range shut-off, 45°C: ± 2 °C
50°C, 60°C, 70°C: ± 3 °C
Media temperature, continuosly max.: 100 °C
temporarily max.: 110 °C
min.: 0 °C
Differential pressure, max.: 100 kPa
Leakrate AB-A, AB-B: Tight sealing 
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 
Flow pattern Diverting 3_GB_A

Accessories and spare parts

Spare parts
ImageArt.no.ReferenceDesignationNational trade codeNoteData sheetInstructions manual


Exchange kit VTD911, 45°C.
37102000VTD911Exchange kit, 45°C    


Exchange kit VTD911, 50°C.
37102100VTD911Exchange kit, 50°C    


Exchange kit VTD911, 60°C.
37102200VTD911Exchange kit, 60°C    


Exchange kit VTD911, 70°C.
37102300VTD911Exchange kit, 70°C    

Download area

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Data Sheet VTD300
Installation instruction VTD300
2D Image VTD300

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