Home/Climate Solutions for heating/Pressure and flow controllers/Globe valves for Pressure and Flow controllers/VFG 2/VFG 21/VFGS 2-X/ 065B2503
Product details
| 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 standard | EN 1092-1 | |
| 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 | |
| Sealing type | Soft sealing cone | |
| 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 |
Technical data
| Product type | Pressure flow controllers | |
| Net weight | 6.63 kg | |
| Gross weight | 6.85 kg | |
| Packed volume | 11.9 L | |
| EAN | 5702421804209 | |
Documents
Operating guides, design guides, certificates and CAD drawings for 065B2503 are available on request. Ask for documents →