


| Parameter | Value |
|---|---|
| EAN () | 5710104027845 |
| Type () | VFM 2 |
| Volume () | 208.8 Liter |
| Function () | Pressure relief |
| Net weight () | 50 Kilogram |
| Valve size () | DN 125 |
| Application () | District heating and cooling |
| Description () | VFM 2 DN125 kvs 250 PN16 2-way flange |
| Stroke [mm] () | 40 mm |
| Gross weight () | 65.8 Kilogram |
| Control ratio () | 100:1 |
| Diameter [mm] () | 125 mm |
| Product group () | Motorized control valves |
| Media pH [Max] () | 10 |
| Media pH [Min] () | 7 |
| Pressure class () | PN 16 |
| Number of ports () | 2 |
| Connection types () | Flange |
| Mounting version () | Flow |
| Spindle position () | Normally open |
| Cavitation factor () | 0.35 |
| Permissible media () | District heating/cooling circulation water |
| EU RoHS compliance () | Out of scope |
| Kvs values [m³/h] () | 250 m³/h |
| Medium alternative () | Glycolic water up to 50% |
| PN alternative VSP () | 10 |
| UK RoHS compliance () | Out of scope |
| Flow characteristic () | Logarithmic |
| Valve body material () | Grey cast iron EN-GJL-250 (GG-25) |
| Valve cone material () | Stainless steel |
| Cavitation factor 25% () | 0.4 |
| Cavitation factor 50% () | 0.36 |
| Cavitation factor 75% () | 0.35 |
| China RoHS compliance () | Out of scope |
| Cavitation factor 100% () | 0.24 |
| Pressure nominal [bar] () | 16 bar |
| Application alternative VSP () | Heating |
| Media temperature [°C] [Max] () | 150 °C |
| Media temperature [°C] [Min] () | -10 °C |
| REACH Candidate List substances () | Lead (CAS no. 7439-92-1) |
| Leakage through port max. [% Kvs] () | 0.03 |
| In scope of WEEE and contain batteries () | No |
| Differential pressure range [bar] [Max] () | 8 bar |
Technical specifications and performance data
Installation and operation guide