Xylem 401551 Hoffman 17C Vertical Thermostatic Steam Trap 1/2" NPT 25 PSI

The Xylem Hoffman Specialty 401551 is a Series 17C balanced pressure thermostatic steam trap designed for institutional, commercial, and residential heating system applications. This vertical pattern trap features 1/2" NPT connections and is ideal for use in schools, hospitals, apartment buildings, homes, and other facilities where low to moderate water hammer may occur.

Key Features:

• Balanced pressure thermostatic design provides subcooling for extremely efficient system operation
• Eliminates flash steam losses on low pressure systems
• Replaceable Dura-Stat stainless steel module for easy servicing without disturbing piping connections
• Brass body construction with stainless steel components for durability
• Resistant to moderate water hammer and chemical attack
• Vents air and non-condensable gases quickly while preventing steam from entering the condensate return system
• Maximum operating pressure: 25 PSI differential
• Maximum temperature: 267°F
• Meets Military specification A-A-60001 Type V, Style A, Class 1 and 2
• 3-year manufacturer warranty
• Made in USA

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, allowing efficient condensate drainage. Model 17C-V-2-25 vertical configuration provides compact installation in tight spaces.