Product Description
The Siemens 331-2973 Number 4 Pneumatic Damper Actuator features a four-inch stroke and is designed for efficient airflow control in HVAC systems. This actuator is made with an all-metal body for durability. It operates with a pneumatic piston, effective for managing various dampers including outdoor air, return air, and exhaust systems.
- All metal construction
- Replaceable ozone-resistant diaphragm
- Includes a universal mounting kit
Product Highlights
This actuator is UL recognized for fire and smoke applications, making it suitable for critical HVAC tasks.
Product Information
Standard Information
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Brand: Siemens HVAC
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MPN: 331-2973
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Item Weight: 13.3 pounds
Technical Specifications
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Stroke Size: 4 inches
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Spring Range: 8 to 13 psi
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Air Connection: 1/8 NPT female
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Operating Temperature Range: -20 to 200 degrees Fahrenheit
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Effective Diaphragm Area: 17.9 square inches
