VAN DANFOSS VFG 21, PN 16, DN 20, 6.3 m³/h, Flange - C/N 065B2503

Gross weight

6.85 Kilogram

Net weight

6.63 Kilogram

Volume

11.93 Liter

EAN

5702421804209

Type

VFG 21

Product group

Pressure flow controllers

Application

District Heating

Cavitation factor

0.6

Cavitation factor 100%

0.41

Cavitation factor 25%

0.69

Cavitation factor 50%

0.62

Cavitation factor 75%

0.6

China RoHS compliance

Out of scope

Connection types

Flange

Contains batteries

No

Description

VFG21 PN16 20/6,3 2-way flange flow/ret

Diameter [mm]

20 mm

Differential pressure range [bar] [Max]

16 bar

EU RoHS compliance

Out of scope

Flow characteristic

Linear optimized

Function

Pressure relief

Kvs values [m³/h]

6.3 m³/h

Leakage through port max. [% Kvs]

0.01

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

Permissible media

District heating/cooling circulation water

Pressure class

PN 16

Pressure nominal [bar]

16 bar

REACH Candidate List substances

Lead (CAS no. 7439-92-1)

Sealing material

EPDM

Spindle position

Normally open

Stroke [mm]

6 mm

Valve body material

Grey cast iron EN-GJL-250 (GG-25)

Valve cone material

Stainless steel, mat. No. 1.4404

Valve seat material

Stainless steel, mat. No. 1.4021

Valve size

DN 20