Description
The Siemens Building Technology 331-674 Motor Stem Extender Kit is a precision-engineered accessory designed to extend the stem reach of compatible Siemens valve actuator motors, enabling proper coupling and alignment in applications where standard stem length is insufficient.
Overview
This extender kit is an essential solution for HVAC and building automation installations where actuator-to-valve stem engagement requires additional length. Manufactured to Siemens’ exacting standards, the 331-674 ensures a secure, reliable connection between the motor actuator and valve stem, maintaining precise control authority in hydronic, chilled water, hot water, and steam valve applications.
Key Features
- Extends motor actuator stem reach for proper valve engagement
- Engineered for compatibility with Siemens Building Technology actuator and valve product lines
- Precision-machined components for secure, play-free coupling
- Simplifies retrofit and replacement installations where stem length is a limiting factor
- Durable construction for long-term reliability in commercial HVAC environments
- Easy to install — no special tooling required
Applications
- Commercial HVAC hydronic systems
- Chilled water and hot water valve actuator installations
- Building automation and direct digital control (DDC) valve assemblies
- Retrofit and upgrade projects requiring stem length adjustment
Why Choose Siemens Building Technology
Siemens Building Technology is a globally recognized leader in HVAC controls, building automation, and energy management solutions. Their components are engineered for precision, durability, and seamless integration within Siemens control ecosystems, making the 331-674 a trusted choice for mechanical contractors and building automation professionals.
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