Technical Parameters Parameter Specification Model Fisher Yarway 25 Type Thermodynamic (Disc) Steam Trap Operation Intermittent (Cycles open and closed) Body Material Forged Carbon Steel (Standard), Stainless Steel Internals Stainless Steel Disc and Seat Connection Screwed (NPT) Maximum Working Pressure Up to 600 psig (41 bar) Maximum Working Temperature Up to 800°F (427°C) Continuous Working Pressure Range 30 to 600 psig (2 to 41 bar)