Xylem-Hoffman Specialty 400606 1140 Series Thermostatic Temperature Actuator, 140-180°F

Description

The Xylem-Hoffman Specialty 400606 is a precision-engineered thermostatic temperature actuator from the trusted 1140 Series, designed for reliable automatic temperature control in hydronic and steam heating systems. Featuring a cross ambient filled capillary sensing element, this actuator responds accurately to system temperature changes, making it an ideal solution for self-contained valve control without the need for external power.

Key Features

• Temperature operating range: 140–180°F for precise high-temperature control
• Cross ambient filled capillary design ensures accurate, stable sensing across varying ambient conditions
• Compatible with all 1/2″ to 2″ body codes in the 1140 Series valve lineup
• Self-actuating thermostatic operation — no external power source required
• Engineered for long-term durability in demanding hydronic and steam heating applications
• Drop-in replacement for existing 1140 Series actuator assemblies

Specifications

• SKU: 400606
• Series: 1140
• Temperature Range: 140–180°F
• Sensing Element: Cross Ambient Filled Capillary
• Compatible Body Sizes: 1/2″ through 2″
• Brand: Xylem-Hoffman Specialty

Application

The 400606 thermostatic actuator is well-suited for use in hydronic heating systems, hot water distribution, and steam applications where automatic, self-contained temperature regulation is required. The cross ambient filled capillary compensates for changes in surrounding temperature, ensuring that the actuator responds only to the process fluid temperature — delivering consistent, reliable valve positioning throughout the operating range.