Spirax-Sarco Engineering TD-50 Thermodynamic Steam Trap

Spirax-Sarco TD-50 Thermodynamic Steam Trap is a compact 3/4-inch thermodynamic trap designed to automatically discharge condensate from steam systems while minimizing live-steam loss. Identified as TD-50 (BM 49497) in Spirax-Sarco's catalog, this unit sits in the TD family of traps that rely on a disc as the single operating component to regulate flow in response to condensate and steam conditions. As condensate heats and flows toward the trap, the disc mechanism opens to release condensate and then reseals to prevent steam from escaping, delivering straightforward, reliable condensate management with relatively few moving parts. The TD-50’s simple, robust design supports continuous operation in mid-range steam applications, helping maintain efficient heat transfer and reducing the risk of water hammer that can accompany condensate carryover. This model reflects Spirax-Sarco’s approach to durable, serviceable steam-trap technology, with documented performance in a broad family of TD traps that are tailored to different installation configurations and pressures. With its 3/4-inch configuration and legacy BM reference, the TD-50 is a straightforward choice for facilities already standardized on Spirax-Sarco thermodynamic traps and seeking dependable condensate control in compact footprints.