Spirax Sarco 67404C Thermodynamic Drain Steam Trap

Spirax Sarco 67404C Thermodynamic Drain Steam Trap, model TDA52, is a compact thermodynamic condensate drain trap designed for reliable condensate removal from steam systems without excessive steam loss. It belongs to Spirax Sarco's thermodynamic trap family and uses a single moving part—a hardened stainless steel disc—for discharge and tight shut-off, a hallmark of this design that emphasizes reliability and straightforward maintenance. In typical plant installations, it drains condensate from steam coils, heat exchangers, and steam lines, helping preserve heat-transfer efficiency and prevent carryover downstream. The thermodynamic principle behind this trap drives discharge when condensate flashes toward steam conditions, while the disc seating provides a solid seal when shut, delivering dependable operation across varying loads. The 67404C designation identifies its exact catalog cross-reference within Spirax Sarco's drain-trap lineup.