Danfoss USV-S DN 50 PN 16 — manual (static) balancing valve for the risers and branches of hydronic heating and cooling systems; the compact combined presetting and shut-off balancing valve (operating elements and connections within a 90° arc). Presetting fixes the branch flow so design flow is distributed correctly across the network. Kvs 16 m³/h. Maximum differential pressure 150 kPa. Media temperature -20 °C to 120 °C. internal thread connection (Internal thread). Brass body, PN 16. OEM designation "USV-S DN 50, internal thread, adjustment valve". OEM P/N 003Z2236. EAN 5710104082851. Technical data quoted verbatim from store.danfoss.com (code 003Z2236).
| Code number | 003Z2236 |
| Type | USV-S |
| Product group | Manual balancing |
| Description | USV-S DN 50, internal thread, adjustment valve |
| Valve size | DN 50 |
| Connection | Internal thread |
| Valve body material | Brass |
| Kvs value | 16 m³/h |
| Pressure class | PN 16 |
| Max. differential pressure | 150 kPa |
| Media temperature range | -20 °C to 120 °C |
| Setting scale | Yes |
| Shut-off function | Yes |
| Drain function | No |
| Flow limitation | Yes |
| Contains batteries | No |
| EU RoHS compliance | Out of scope |
| China RoHS compliance | Out of scope |
| Net weight | 1.99 kg |
| Gross weight | 2.063 kg |
| Volume | 2.484 L |
| EAN | 5710104082851 |
| HS code | 8481.80 |
| Material | Valve body Brass |
| Pressure rating | PN 16 |
| Temperature range | -20 °C to 120 °C |
| Standard size | USV-S |
| MOQ | 1 |
USV-S is a compact single-valve solution combining presetting and shut-off — one per branch. Select by pipe size (DN 50) and pressure class (PN 16); use the Kvs with the branch design flow to set the presetting. Confirm code and connection against the datasheet before ordering.