Description
The Siemens Building Technology 331-2904 is a 3–7 lb Actuator Post Mount (#4) engineered for secure, precise mounting of pneumatic actuators in commercial HVAC and building automation applications. Designed to Siemens’ exacting standards, this post mount ensures stable actuator positioning, minimizing vibration and mechanical stress for long-term reliable operation.
Product Overview
This post mount accessory is purpose-built to support Siemens pneumatic actuators rated in the 3–7 lb force range. It provides a rigid, properly aligned mounting interface that is critical for accurate valve and damper control in building automation systems. The #4 designation identifies the specific mounting configuration, ensuring compatibility with the correct actuator and valve body pairing.
Key Features
- Designed for 3–7 lb pneumatic actuator applications
- #4 post mount configuration for precise actuator alignment
- Engineered for commercial HVAC and building automation systems
- Provides stable, vibration-resistant actuator support
- Manufactured to Siemens Building Technology quality standards
- Facilitates accurate valve and damper positioning
Applications
- Commercial HVAC pneumatic control systems
- Building automation valve and damper assemblies
- Replacement or new-installation actuator mounting
- Compatible with Siemens pneumatic actuator product lines
Why Choose Siemens Building Technology
Siemens Building Technology is a globally recognized leader in HVAC controls and building automation. Their actuator accessories are designed for seamless integration, long service life, and consistent performance across a wide range of commercial and industrial environments.







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