VTF322, External thread
VTF322, External thread

Thermostatic flow limitation valve

VTF320

Thermostatic flow limitation valves applicable where flow limitation and temperature safety is required.
Series VTF300 are designed for potable hot water circulation systems to secure the right PHW-C temperature. The valves allow to optimize the system, keep it efficient and decries the exploitation cost.

The VTF320 closes the flow of the potable water circulation when the desired temperature is reached. This function allows to optimize the PHW system by shutting off zones which are already heated, and/or continue to heat zones which are below desired temperature. Thermostatic flow limitation valves applicable where flow limitation and temperature safety is required.

  • Simple installation and usage
  • Responsive, quick and accurate
  • Flow limitation with 55°C
  • Exchangeable temperature limitation
  • System optimization
  • Exploitation cost reduction
  • Energy savings

Product range

VTF300 front_A-01
VTF322
VTF300 side_A-01
Series VTF322, external thread
Art.no.Referenceclosing temp °CKvsConnection EA mmB mmC mmD mmNoteWeight kg
31220300VTF322551,8G ¾"70285246 0,45

Installation support

Installation examples
Applikation_VTR_VTF_4appartments_color-01
VTF320
Installation instruction VTF320

Technical data

Technical data
Pressure class: PN 10 
Working pressure: 1,0 MPa
Close off pressure: 600 kPa
Operational dynamic differential pressure: max. 300 kPa
Media temperature, max. continuously: 95 °C
max. temporarily: 100 °C
min.: 0 °C
Closing temperature accuracy: +3/–1 °C
Connection, External thread (G): ISO 228/1 
Material, Valve housing and other metal parts with fluid contact: Dezincification resistant brass CW625N, DZR 
Conformity PED 2014/68/EU, article 4.3 

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Data Sheet VTF320
Installation instruction VTF320
2D Image VTF320
3D drawing (stp file) VTF322

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