Spirax-Sarco UTD52L Thermodynamic Steam Trap

Spirax-Sarco 66173C UTD52L Universal Thermodynamic Steam Trap is a low-capacity, stainless‑steel, disc‑type trap engineered to remove condensate from steam systems with condensate discharged very close to steam temperature. It belongs to the UTD52 family and uses Spirax‑Sarco’s Universal Connector, enabling 1/2", 3/4", or 1" port configurations with either NPT or SW connections, as well as straight or strainer variants in left- or right‑hand orientations. The 66173C designation identifies the 1/2‑inch, low‑capacity variant of the UTD52L series. The trap is supplied assembled with gaskets and two connector bolts, enabling straightforward installation into compatible trap stations and quick maintenance. Thermodynamic operation within the UTD52L design provides periodic discharge of condensate while resisting air binding, making it suitable for small headers and branch lines in steam distribution or process heating loops.