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VFQ22_VFQ221

VFQ 221, PN 25, DN 125, 250 m³/h, Flange

065B5610

Pressure operated valves

Product specifications

Characteristic
Value
ApplicationDistrict heating and cooling
Cavitation factor0.40
Cavitation factor 100%0.39
Cavitation factor 25%0.68
Cavitation factor 50%0.47
Cavitation factor 75%0.42
Connection typesFlange
Contains batteriesNo
DG Indicator ProfileNot relevant for dangerous goods
DescriptionPressure operated valves
Diameter [mm]125 mm
Differential pressure range [bar] [Max]15.00 bar
Kvs values [m³/h]250.00 m³/h
Leakage rate [% Kvs]0.03
Leakage through port max. [% Kvs]0.03
Material DescriptionVFQ221 PN25 125/250 2-way flange flow/re
Media pH [Max]10
Media pH [Min]7
Media temperature [°C] [Max]150 °C
Media temperature [°C] [Min]2 °C
Characteristic
Value
Medium alternativeGlycolic water up to 30%
Mounting versionFree
Number of ports2
Operating pressure [bar] [Max]25 bar
Permissible mediaDistrict heating/cooling circulation water
Pressure classPN 25
Pressure nominal [bar]25 bar
Pressure relieve systemChamber
Product TypeVFQ 221
Product groupPressure flow controllers
Product lineDistrict Energy Controls
REACH Candidate List substancesLead (CAS no. 7439-92-1)
Sealing DP materialEPDM
Valve body materialDuctile cast iron EN-GJS-400-18-LT (GGG 40.3)
Valve cone DP materialStainless steel mat. No. 1.4021
Valve cone materialStainless steel, mat. No. 1.4021
Valve seat DP materialStainless steel, mat. No. 1.4021
Valve seat materialStainless steel, mat. No. 1.4021
Valve sizeDN 125

General specifications

Characteristic
Value
Gross weight99 Kilogram
Net weight89 Kilogram
Volume191.52 Liter
Characteristic
Value
EAN/UPC5715162398708
Proposition 65Cancer and Reproductive Harm