Technical Parameters Parameter Specification Model Yarway AT-18 Yarway AT-28 Type Pilot-Operated Inverted Bucket Steam Trap Operation Continuous Discharge Connection Screwed (NPT) Body Material Forged Carbon Steel (Standard), Ductile Iron Internal Parts Stainless Steel Maximum Working Pressure 200 psig (14 bar) 450 psig (31 bar) Maximum Working Temperature 450°F (232°C) 800°F (427°C) Orifice Size 0.094" (2.4mm) Air Vent Balanced Pressure Thermostatic Bellows (for fast air removal) Capacity (lbs/hr of condensate) Varies with pressure differential. Example (at 100 psig ΔP): ~ 640 lbs/hr
