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Self-acting differential pressure and flow controller type AFPQ / VFQ 2

VFQ 2, PN 25, DN 50, 32.00 m³/h, Flange

065B2672

VFQ2 PN25 50/32 2-way flange flow/return

Product specifications

Characteristic
Value
ApplicationDistrict Heating
Cavitation factor0.50
Cavitation factor 100%0.34
Cavitation factor 25%0.58
Cavitation factor 50%0.52
Cavitation factor 75%0.50
China RoHS complianceOut of scope
Connection typesFlange
DescriptionVFQ2 PN25 50/32 2-way flange flow/return
DG Indicator ProfileNot relevant for dangerous goods
Diameter [mm]50 mm
Differential pressure range [bar] [Max]20.00 bar
EU RoHS complianceOut of scope
Flow characteristicLinear optimized
FunctionPressure relief
In scope of WEEE and contain batteriesNo
Kvs values [m³/h]32.00 m³/h
Leakage through port max. [% Kvs]0.03
Material DescriptionVFQ2 PN25 50/32 2-way flange flow/return
Media pH [Max]10
Characteristic
Value
Media pH [Min]7
Media temperature [°C] [Max]200 °C
Media temperature [°C] [Min]2 °C
Medium alternativeGlycolic water up to 30%
Mounting versionFree
Number of ports2
Permissible mediaDistrict heating/cooling circulation water
Pressure classPN 25
Pressure nominal [bar]25 bar
Product groupPressure flow controllers
Product lineDistrict Energy Controls
Product TypeVFQ 2
REACH Candidate List substancesLead (CAS no. 7439-92-1)
Spindle positionNormally open
Stroke [mm]12.00 mm
UK RoHS complianceOut of scope
Valve body materialGGG 40.3
Valve cone materialStainless steel, mat. No. 1.4404
Valve sizeDN 50

General specifications

Characteristic
Value
Gross weight18.2 Kilogram
Net weight18.2 Kilogram
Volume26.197 Liter
Characteristic
Value
EAN5702421809365
Proposition 65Cancer and Reproductive Harm