Siemens Building Technology 279-06051 Flowrite 599 Series Valve Assembly 2-Way Normally Closed 3-Inch 100 Cv

The Siemens Building Technology 279-06051 is a complete Flowrite 599 Series valve actuator assembly designed for commercial HVAC water control applications. This assembly combines a 2-way globe valve with a pneumatic actuator for reliable, proportional control of water flow in heating and cooling systems.

Valve Specifications:

• 3-inch flanged end connections, ANSI Class 125 rating
• 100 Cv flow coefficient with linear flow characteristic
• 2-way normally closed (fail-safe) design
• Stainless steel trim for durability and corrosion resistance
• High temperature packing rated to 250°F
• Cast iron body construction
• 3/4-inch stroke length
• Maximum close-off pressure: 74 psi

Pneumatic Actuator Features:

• 12-inch spring return actuator (599-01010)
• 3-8 psi control signal range with 5 psi span
• Direct-coupled mounting to valve body
• Spring return fail-safe operation ensures normally closed position on air loss
• NEMA 1 enclosure rating
• Visual position indicator

This assembly is factory-tested and ready to install, eliminating the need for field assembly and calibration. The stainless steel trim and high temperature packing make it suitable for demanding commercial building applications including chilled water, hot water, and steam systems up to 250°F. The linear flow characteristic provides consistent control across the full operating range.