Xylem 401545 Hoffman 17C Swivel Thermostatic Steam Trap 1/2" NPT 25 PSI

The Xylem 401545 Hoffman 17C Series Balanced Pressure Thermostatic Steam Trap is designed for institutional, commercial, and residential heating system applications including schools, hospitals, apartment buildings, and homes where low to moderate water hammer may occur. This swivel-style trap features a 1/2" NPT connection and is rated for 25 PSI maximum operating pressure.

Key Features:

• Cast bronze construction provides resistance to moderate water hammer and chemical attack
• Balanced pressure design with stainless steel Dura-Stat® bellows diaphragm element
• Swivel configuration allows for flexible installation and piping alignment
• Opens in response to pressure and temperature to discharge air and condensate while closing against steam passage
• Operates 10° to 30°F below saturated steam temperature for efficient subcooling
• Normally open during start-up for fast air venting and condensate drainage
• Maximum temperature rating of 267°F
• Replaceable thermostatic module without disturbing piping connections
• Compact size reduces installation space requirements
• 3-year manufacturer warranty

Applications: Ideal for radiators, convectors, unit heaters, pipe coils, heating coils, and other low-pressure steam heating equipment. The thermostatic element expands when steam is present to close the trap, and contracts when cooler air or condensate is present to open the trap and allow drainage, eliminating flash steam losses and improving overall system efficiency.