• Condensate is discharged close to steam temperature at all operating pressures Withstands superheat, waterhammer, freezing, corrosive condensate and vibration Only one moving part-a stainless steel disc hardened for long life Blast discharge with clean, tight shutoff Audible "click" as the disc seats, performance is easily checked Single piece stainless steel body eliminates internal gaskets and leak paths In-line horizontal piping configuration Ceramic insulation minimizes the effect of adverse ambient conditions Hardened stainless steel disc shuts off tight between cycles 3 outlet orifices ensure that the disc remains parallel to the seat for improved performance and reduced wear Turbulence grooves in disk ensure that the trap closes just before live steam reaches the inlet Metal-to-metal cap/body joint does not require gasketing Integral insulcap Stainless steel disc, cap, nameplate cover, ceramic insulator

The Thermo-Dynamic disc trap is one of the most popular steam traps on the market today. The cost effective, compact design makes the TD ideal for drainage of steam mains, steam tracing lines and small process equipment where size, as well as efficient operation are important. Discharge from the TD is close to steam temperature; therefore, the steam space is kept free from condensate. The tight shut-off the TD provides prevents valuable steam from being wasted. These factors combine to optimize the steam system efficiency. Spirax Sarco invented and patented the TD in 1953. Since then, the range has been refined to accommodate a variety of sizes and piping orientations and operating pressures up to 3625 lbf/sq-in.