Siemens Building Technology 274-06170 Flowrite 2.5-Inch ANSI 250 Brass Trim 24V Spring Return Valve Assembly

The Siemens Building Technology 274-06170 is a Flowrite MX Series two-way, normally closed (NC) control valve assembly featuring a 2.5-inch flanged iron body rated to ANSI Class 250, brass trim, and a 24V spring-return electronic actuator. Designed for precise flow modulation in commercial HVAC hydronic systems, this complete valve and actuator assembly delivers reliable two-position or proportional control of hot and chilled water applications.

The Flowrite globe valve body features an equal percentage flow characteristic for stable modulation across varying load conditions. The spring-return actuator ensures the valve returns to its fail-safe normally closed position upon loss of power or control signal, providing an added layer of system protection.

Key Features:

• Valve Size: 2.5 inches (65 mm), flanged iron body
• Pressure Class: ANSI Class 250 rated construction
• Trim Material: Brass (bronze) trim with standard-duty packing
• Actuator Voltage: 24V AC
• Actuator Action: Spring return (SR) — fail-safe normally closed
• Flow Characteristic: Equal percentage
• Valve Action: Two-way, stem-up-to-open
• Series: Flowrite 599 / MX Series

Typical applications include hot water and chilled water control for fan coil units, air handling units, VAV systems, cooling ceilings, and other commercial building HVAC terminal equipment. The assembly ships as a complete, factory-matched valve and actuator unit ready for installation.