TC-300 Series Thermostatic Wafer Steam Trap Carbon Steel For pressures to 250 psig (17 bar) . . . Cold water start-up capacities to 1,000 lb/hr (454 kg/hr) The TC-300 is sized precisely to handle the extremely low condensate load found in most instrument steam tracer lines. The TC-300 traps are designed to last longer than other oversized, all-purpose thermostatic and thermodynamic steam traps. This steam trap adjusts automatically to flow rates, including large start uploads, at all pressures within its range.