Spence Engineering Company (Walden, New York), has announced that its NTD600B Thermodynamic Steam Trap is now available with an integral strainer and blowdown valve for ease of installation and maintenance. The NTD600 Series Traps are all stainless steel and feature a hardened stainless disc as the only moving part. They are inexpensive, freeze-resistant and may be installed in any position. The blast discharge eliminates dirt build-up and permits audible cycle checking. Three outlet orifices ensure the disc remains parallel to the seat. Turbulence grooves on the disc ensure positive closure before live steam reaches the inlet. The NTD600 Traps are ideal for steam tracing, and drip and heating applications with pressures to 600 psig and temperataures to 800 F.