Danfoss AF-range stem extension ZF 4 (OEM designation "Stem extension ZF 4, AF range"). The stem extension is a spacer piece fitted between the valve body and the self-acting AF-range actuator, giving clearance for pipe insulation and separating the actuator from the hot valve body. Suits valve bodies DN 15–125. OEM P/N 003G1394. EAN 5702421812440. Technical data quoted verbatim from store.danfoss.com (code 003G1394).
| Code number | 003G1394 |
| Type | Stem extensions |
| Product group | Accessories - SAC |
| Gross weight | 2.62 Kilogram |
| Net weight | 2.62 Kilogram |
| Volume | 4.872 Liter |
| Contains batteries | No |
| Description | Stem extension ZF 4, AF range |
| For valve size | DN 15-125 |
| REACH Candidate List substances | Lead (CAS no. 7439-92-1) |
| Suitable for valve of diameter [mm] [Max] | 125 mm |
| Suitable for valve of diameter [mm] [Min] | 15 mm |
| EAN | 5702421812440 |
| HS code | 8481.90 |
| Standard size | Stem extensions |
| MOQ | 1 |
Stem extension ZF 4 fits between a Danfoss VFG-series globe valve body (DN 15–125) and the AF-range actuator to allow insulation clearance. ZF 4/5/6 differ in build height; the FKM variant is for higher media temperature. Confirm the required extension height and seal material against the AF-range data sheet before ordering.