Danfoss VFH2-FAO DN 600 PN 16 — centric-disc butterfly valve for isolation and modulating/on-off control in hydronic heating and cooling circuits. Flange body connection. Kvs 36946 m³/h. Media temperature -10 °C to 95 °C. Maximum differential pressure 10 bar. Ductile iron (DIN GGG40) body, stainless steel disc, EPDM liner. Electric actuator operation (two-position on/off), supply 220 V AC, 140 W power draw, operating torque 2500 N-m, IP67. Leakage rate A (bubble-tight). OEM designation "VFH2 -FAO DN 600, Butterfly valve, Motorized On/off, PN16". OEM P/N 003Z6400. EAN 5715162464687. Technical data quoted verbatim from store.danfoss.com (code 003Z6400).
| Code number | 003Z6400 |
| Type | VFH2-FAO |
| Product group | Butterfly valves |
| Description | VFH2 -FAO DN 600, Butterfly valve, Motorized On/off, PN16 |
| Valve type | Motorized butterfly valve |
| Valve size | DN 600 |
| Connection types | Flange |
| Operation type | Actuator |
| Control signal type | On/Off |
| Kvs value [m³/h] | 36946 m³/h |
| Pressure class | PN 16 |
| Max. differential pressure | 10 bar |
| Leakage rate | Leakage rate A |
| Media temperature range | -10 °C to 95 °C |
| Medium | Glycolic water up to 50% |
| Application | Heating and cooling |
| Valve body material | Ductile iron (DIN GGG40) |
| Valve disc material | Stainless Steel |
| Rotation angle | 90 ° |
| Operating torque | 2500 N-m |
| Manual operation | Yes |
| Position indicator | No |
| Supply voltage [V] AC | 220 V |
| Frequency | 50 Hz |
| Power consumption | 140 W |
| IP protection class | IP67 |
| Ambient temperature [min] | -10 °C |
| Contains batteries | No |
| EU RoHS compliance | Yes with exemptions |
| China RoHS compliance | Yes with exemptions |
| REACH Candidate List substances | Lead (CAS no. 7439-92-1) |
| Net weight | 204.6 Kilogram |
| Gross weight | 239.4 Kilogram |
| Volume | 894.88 Liter |
| EAN | 5715162464687 |
| HS code | 8481.80 |
| Material | Valve body Ductile iron (DIN GGG40), disc Stainless Steel |
| Pressure rating | PN 16 |
| Temperature range | -10 °C to 95 °C |
| IP rating | IP67 |
| Standard size | VFH2-FAO |
| MOQ | 1 |
VFH2 large-body motorized butterfly valves carry a factory-fitted electric actuator; select by pipe size (DN 600), pressure class (PN 16), body connection (Flange) and control signal. LAO = lug body, motorized on/off; LAM = lug body, motorized modulating (2-10 V or 4-20 mA — check the code); FAO = flange body, motorized on/off; FAM = flange body, motorized modulating. Confirm DN, connection type and control signal against the datasheet before ordering.