Thermostatic flow limitation valve


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

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.

Product range

VTF322, External thread

VTF300 front_A-01.png
VTF300 side_A-01.png Reference Closing temperature [°C] Kvs Connection E A [mm] B [mm] C [mm] D [mm] E Weight [kg]
31220300 VTF322 55 1,8 G ¾" 70 28 52 46 G ¾" 0,45
Installation support

Installation example

Installation example


Technical data

Technical data

Pressure class: PN 10
Working pressure: 1,0 MPa
Connections: External thread, ISO 228/1
Close off pressure: 600 kPa
Operational dynamic differential pressure: max. 300 kPa
Media temperature, max. continuously: +95 °C
Media temperature, max. temporarily: +100 °C
Media temperature, min.: 0 °C
Closing temperature accuracy: ±2 °C
Material, Valve housing and other metal parts with fluid contact: DZR brass CW625N, resistant to dezincification


PED 2014/68/EU, article 4.3 /
SI 2016 No. 1105 (UK)
See certificate
ÜA R-15.2.4-22-17605 (AT)
Accessories and spare parts

Spare parts

Art No. Reference Designation Note Instruction manual
37180100 37180100 VTF932 ESBE VTF932 Exchange kit series VTF320, 55°C VTF320, VTA570 download
Download area

Download area

Type Preview Download
Data Sheet VTF320 download
Installation instruction VTF320 download
Certificate Declaration of Conformity, VTF320 download
Certificate Declaration of Conformity UKCA, VTF320 download
Certificate Building Product Declaration BPD3, VTF300 download
Certificate ÜA R-15.2.4-22-17605 (AT), VTF320 download
Certificate KIWA-21-DW-10120, VTF320 download
Certificate UKRSEPRO certificate (UA), VTF320 download
Approval PZH-certificate (PL), VTF320 download
Image VTF322, high res download
2D Image VTF320 download
3D drawing (stp file) VTF322 download


Indirect potable hot water temperature control with a PHW controller CRS211 and flow limitation valve VTF320

Potable hot water system with circulation