Danfoss 065B5520 - VFG 22, PN 40, DN 250, 800 m³/h, Flange

Product details

Type		VFG 22
Product group		Pressure flow controllers
Cavitation factor		0.18
Cavitation factor 100%		0.12
Cavitation factor 25%		0.32
Cavitation factor 50%		0.25
Cavitation factor 75%		0.18
China RoHS compliance		Yes with exemptions
China RoHS exemption clause		7.3
Connection size		DN 250
Connection standard		EN 1092-1
Connection types		Flange
Contains batteries		No
Description		Pressure operated valves
Diameter [mm]		250 mm
Differential pressure range [bar] [Max]		10 bar
EU RoHS compliance		Yes with exemptions
EU RoHS exemption clause		6(c)
Kvs values [m³/h]		800 m³/h
Leakage rate [% Kvs]		0.05
Leakage through port max. [% Kvs]		0.05
Media pH [Max]		10
Media pH [Min]		7
Media temperature [°C] [Max]		150 °C
Media temperature [°C] [Min]		2 °C
Medium alternative		Glycolic water up to 30%
Mounting version		Free
Number of ports		2
Operating pressure [bar] [Max]		40 bar
Permissible media		District heating/cooling circulation water
Pressure class		PN 40
Pressure nominal [bar]		40 bar
Pressure relieve system control valve insert		Chamber
REACH Candidate List substances		No
Sealing DP material		Metal
Sealing type		Metal sealing cone
Valve body material		Cast steel EN-GP-240-GH (GS-C 25)
Valve cone DP material		Stainless steel mat. No. 1.4021
Valve seat DP material		Stainless steel, mat. No. 1.4021
Valve size		DN 250

Operating guides, design guides, certificates and CAD drawings for 065B5520 are available on request. Ask for documents →