Velan TS Series 3/4" NPT bimetallic thermostatic steam trap for low capacity applications. This valve features a check valve, strainer, and 4-bolt cover. It discharges hot condensate in a modulating fashion at approximately 18°F below saturation temperature throughout the operating range. Unaffected by water hammer or superheat. TS Series steam traps are self draining and will not freeze when installed in a gravity draining position. They automatically vent air and non-condensable gases and have a high (7:1) cold water capacity for rapid start-up. This valve operates with zero steam loss throughout its operating range and can be installed in any position.