Danfoss VFG 21 two-way flanged globe (seat) valve body, OEM order code 065B2537. Nominal size DN250, pressure class PN 16, flow coefficient Kvs 400 m³/h. VFG 21 is the two-way pressure-relieved control-valve body (pressure-balanced cone for higher differential pressure) that combines with a matched self-acting or electric (AMV/AME) actuator. Data quoted verbatim from store.danfoss.com (code 065B2537).
| Brand | Danfoss |
| Part number | 065B2537 |
| Type | VFG 21 |
| Product group | Pressure flow controllers |
| Valve size | DN 250 |
| Pressure class | PN 16 |
| Nominal pressure | 16 bar |
| Kvs value | 400 m³/h |
| Connection type | Flange |
| Number of ports | 2 |
| Net weight | 220 Kilogram |
| Gross weight | 220 Kilogram |
| EAN | 5702421804544 |
| HS code | 8481.80 (taps, cocks, valves for pipes) |
| Cavitation factor 100% | 0.15 |
| Cavitation factor 25% | 0.31 |
| Cavitation factor 50% | 0.25 |
| Cavitation factor 75% | 0.2 |
| China RoHS compliance | Out of scope |
| Connection types | Flange |
| Description | VFG21 PN40 250/400 2-way flange flow/ret |
| Diameter [mm] | 250 mm |
| EU RoHS compliance | Out of scope |
| Kvs values [m³/h] | 400 m³/h |
| REACH Candidate List substances | No |
| Pressure rating | PN 16 (16 bar) |
| Standard size | DN 250 |
| MOQ | 1 |
Valve body for Danfoss self-acting / motorized control assemblies. Combine the VFG 21 DN250 body with a matched actuator (self-acting AFA/AFP/AFT/AVT or electric AMV / AME) sized for the required duty. Select the body by nominal size (DN250), pressure class (PN 16) and flow coefficient (Kvs 400 m³/h) before ordering.