VFM 2, PN 16, DN 250, 900 m³/h, Flange
| Gross weight |
369.6 Kilogram |
| Net weight |
369.6 Kilogram |
| Volume |
638.4 Liter |
| EAN |
5710104027876 |
| Type |
VFM 2 |
| Product group |
Motorised control valves |
| Application |
District heating and cooling |
| Application alternative VSP |
Heating |
| Cavitation factor |
0.3 |
| Cavitation factor 100% |
0.14 |
| Cavitation factor 25% |
0.24 |
| Cavitation factor 50% |
0.22 |
| Cavitation factor 75% |
0.21 |
| China RoHS compliance |
Out of scope |
| Connection types |
Flange |
| Contains batteries |
No |
| Control ratio |
100:1 |
| Description |
VFM 2 DN250 kvs 900 PN16 2-way flange |
| Diameter [mm] |
250 mm |
| Differential pressure range [bar] [Max] |
5 bar |
| EU RoHS compliance |
Out of scope |
| Flow characteristic |
Logarithmic |
| Function |
Pressure relief |
| Kvs values [m³/h] |
900 m³/h |
| Leakage through port max. [% Kvs] |
0.03 |
| Media pH [Max] |
10 |
| Media pH [Min] |
7 |
| Media temperature [°C] [Max] |
150 °C |
| Media temperature [°C] [Min] |
-10 °C |
| Medium alternative |
Glycolic water up to 50% |
| Mounting version |
Flow |
| Number of ports |
2 |
| Permissible media |
District heating/cooling circulation water |
| PN alternative VSP |
10 |
| Pressure class |
PN 16 |
| Pressure nominal [bar] |
16 bar |
| REACH Candidate List substances |
Lead (CAS no. 7439-92-1) |
| Spindle position |
Normally open |
| Stroke [mm] |
50 mm |
| Valve body material |
Grey cast iron EN-GJL-250 (GG-25) |
| Valve cone material |
Stainless steel |
| Valve size |
DN 250 |
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