VFQ 221, PN 40, DN 250, 800 m³/h, Flange
065B5620
Pressure operated valves
Product specifications
Characteristic | Value |
|---|---|
| Application | District heating and cooling |
| Cavitation factor | 0.30 |
| Cavitation factor 100% | 0.28 |
| Cavitation factor 25% | 0.67 |
| Cavitation factor 50% | 0.37 |
| Cavitation factor 75% | 0.32 |
| China RoHS compliance | Out of scope |
| Connection types | Flange |
| Contains batteries | No |
| Description | Pressure operated valves |
| DG Indicator Profile | Not relevant for dangerous goods |
| Diameter [mm] | 250 mm |
| Differential pressure range [bar] [Max] | 10.00 bar |
| EU RoHS compliance | Yes with exemptions |
| EU RoHS exemption clause | 6(c) |
| Kvs values [m³/h] | 800.00 m³/h |
| Leakage rate [% Kvs] | 0.05 |
| Leakage through port max. [% Kvs] | 0.05 |
| Material Description | VFQ221 PN40 250/800 2-way flange flow/re |
| Media pH [Max] | 10 |
| Media pH [Min] | 7 |
Characteristic | Value |
|---|---|
| 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 | Chamber |
| Product group | Pressure flow controllers |
| Product line | District Energy Controls |
| Product Type | VFQ 221 |
| Sealing DP material | EPDM |
| Valve body material | Cast steel GP240GH (GS-C 25) |
| Valve cone DP material | Stainless steel mat. No. 1.4021 |
| Valve cone material | Stainless steel, mat. No. 1.4021 |
| Valve seat DP material | Stainless steel, mat. No. 1.4021 |
| Valve seat material | Stainless steel, mat. No. 1.4021 |
| Valve size | DN 250 |
General specifications
Characteristic | Value |
|---|---|
| Gross weight | 485 Kilogram |
| Net weight | 460 Kilogram |
Characteristic | Value |
|---|---|
| Volume | 795.84 Liter |
| EAN/UPC | 5715162398814 |