Danfoss logo
VFQ22_VFQ221

VFG 22, PN 40, DN 250, 800 m³/h, Flange

065B5520

Pressure operated valves

Thông số kỹ thuật của máy

Đặc tính kỹ thuật
Giá trị
Cavitation factor0.18
Cavitation factor 100%0.12
Cavitation factor 25%0.32
Cavitation factor 50%0.25
Cavitation factor 75%0.18
China RoHS complianceYes with exemptions
China RoHS exemption clause7.3
Connection sizeDN 250
Connection typesFlange
Contains batteriesNo
DescriptionPressure operated valves
DG Indicator ProfileNot relevant for dangerous goods
Diameter [mm]250 mm
Differential pressure range [bar] [Max]10.00 bar
EU RoHS complianceYes with exemptions
EU RoHS exemption clause6(c)
Kvs values [m³/h]800.00 m³/h
Leakage rate [% Kvs]0.05
Leakage through port max. [% Kvs]0.05
Material DescriptionVFG 22 PN40 250/800 2-way flange flow/re
Media pH [Max]10
Đặc tính kỹ thuật
Giá trị
Media pH [Min]7
Media temperature [°C] [Max]150 °C
Media temperature [°C] [Min]2 °C
Medium alternativeGlycolic water up to 30%
Mounting versionFree
Number of ports2
Operating pressure [bar] [Max]40 bar
Permissible mediaDistrict heating/cooling circulation water
Pressure classPN 40
Pressure nominal [bar]40 bar
Pressure relieve system control valve insertChamber
Product groupPressure flow controllers
Product lineDistrict Energy Controls
Product TypeVFG 22
REACH Candidate List substancesNo
Sealing DP materialMetal
Valve body materialCast steel EN-GP-240-GH (GS-C 25)
Valve cone DP materialStainless steel mat. No. 1.4021
Valve seat DP materialStainless steel, mat. No. 1.4021
Valve sizeDN 250

Yêu cầu chung

Đặc tính kỹ thuật
Giá trị
Gross weight430 Kilogram
Net weight404 Kilogram
Volume795.84 Liter
Đặc tính kỹ thuật
Giá trị
EAN/UPC5714279052602
Proposition 65No Reproductive Toxins or Carcinogens