Product Overview
Siemens SQS859.00 Rotary Actuator with VXG44.20-6.3 3-Way Valve
Used 24VAC Rotary Actuator and 3-Way Control Valve for Hydronic HVAC
Product Condition
Used. Removed from service in working condition. Shows normal signs of prior installation and use consistent with commercial HVAC environments. Visual inspection only; no bench testing performed.
Carefully packed and shipped same business day from our Idaho warehouse. Online since 1999. Honest equipment and straightforward service.
Product Overview
Siemens SQS859.00 rotary electromotoric actuator paired with an installed Siemens VXG44.20-6.3 three-way control valve. This actuator-and-valve assembly is designed for controlled mixing or diverting of fluid flow in hydronic heating and cooling systems. Operating on 24VAC, it integrates into standard building automation and HVAC control schemes. Assemblies like this are commonly specified where repeatable valve positioning and predictable system response are required.
Key Features
- Siemens SQS859.00 rotary electromotoric actuator
- Installed Siemens VXG44.20-6.3 three-way control valve
- 24VAC operating voltage
- Designed for rotary valve actuation
- Supports mixing or diverting flow configurations
- Supplied as a complete actuator and valve assembly
- Common form factor for building automation systems
Applications
- Hydronic heating system control
- Chilled water HVAC distribution
- Mixing valve installations
- Diverting valve applications
- Building automation system integration
- Maintenance replacement in Siemens-equipped systems
Frequently Asked Questions
What voltage does this actuator require?
The actuator is designed to operate on 24VAC.
Is the valve included?
Yes. The Siemens VXG44.20-6.3 three-way valve is installed on the actuator.
What type of control does this valve provide?
The valve supports three-way mixing or diverting functions in hydronic systems.
Was this unit operational when removed?
It was reported to be in working condition at the time of removal from service.
Is this suitable for building automation systems?
Yes. It is commonly used in HVAC and building automation applications utilizing 24VAC control.
Quietly managing flow without drawing attention, this assembly is built to keep larger systems steady, balanced, and predictable.
