
Siemens Building Technology 331-4810 Actuator
The Siemens 331-4810 is a rugged, metal-fabricated No. 3 Pneumatic Actuator engineered for reliable modulating or two-position control of HVAC dampers and terminal units. Built with all-metal construction and a totally enclosed housing, this 331 Series actuator is a staple for contractors maintaining mixing box dampers, unit ventilators, and air valves. It features a 2-3/8 inch stroke and a nominal 8-13 psi spring range, allowing for precise sequencing with other pneumatic control devices. The ozone-resistant rolling rubber diaphragm ensures long-term performance and consistent torque output under varying load conditions. Designed for versatility, the Siemens 331-4810 includes a front-mounting plate and a 1/8" NPT female air connection with a dual barb fitting for standard 1/4" OD tubing. Professional technicians rely on this damper actuator for its field-proven durability and compatibility with secondary positioning relays in high-demand airflow applications.
Key Benefits- Precision Sequencing: The 8-13 psi spring range allows for optimal coordination with other pneumatic devices in complex HVAC sequences.
- Durable Construction: Heavy-duty metal body and enclosed design protect internal components from debris and mechanical wear.
- Field Reliability: High-quality rolling diaphragm provides smooth, gradual actuation for superior air handling control.
- Standardized Fit: 1/8" NPT air connection and front-mount configuration simplify drop-in replacement for existing HVAC systems.
- How do I confirm if the 8-13 psi range is correct for my system? Check the pressure signal from your controller; this pneumatic actuator is typically used for sequencing when other dampers or valves must move at different pressure thresholds.
- Can the diaphragm be replaced in the field? Yes, the Siemens 331-4810 is designed to be serviceable, allowing technicians to replace the ozone-resistant diaphragm if wear is detected over time.
- Is this suitable for fire/smoke damper applications? While the 331 series is versatile, always verify local codes. Typically, these actuators are used for modulation in standard HVAC air distribution.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $103.36
-65%$103.36
$36.18Siemens Building Technology 331-4810 Actuator
The Siemens 331-4810 is a rugged, metal-fabricated No. 3 Pneumatic Actuator engineered for reliable modulating or two-position control of HVAC dampers and terminal units. Built with all-metal construction and a totally enclosed housing, this 331 Series actuator is a staple for contractors maintaining mixing box dampers, unit ventilators, and air valves. It features a 2-3/8 inch stroke and a nominal 8-13 psi spring range, allowing for precise sequencing with other pneumatic control devices. The ozone-resistant rolling rubber diaphragm ensures long-term performance and consistent torque output under varying load conditions. Designed for versatility, the Siemens 331-4810 includes a front-mounting plate and a 1/8" NPT female air connection with a dual barb fitting for standard 1/4" OD tubing. Professional technicians rely on this damper actuator for its field-proven durability and compatibility with secondary positioning relays in high-demand airflow applications.
Key Benefits- Precision Sequencing: The 8-13 psi spring range allows for optimal coordination with other pneumatic devices in complex HVAC sequences.
- Durable Construction: Heavy-duty metal body and enclosed design protect internal components from debris and mechanical wear.
- Field Reliability: High-quality rolling diaphragm provides smooth, gradual actuation for superior air handling control.
- Standardized Fit: 1/8" NPT air connection and front-mount configuration simplify drop-in replacement for existing HVAC systems.
- How do I confirm if the 8-13 psi range is correct for my system? Check the pressure signal from your controller; this pneumatic actuator is typically used for sequencing when other dampers or valves must move at different pressure thresholds.
- Can the diaphragm be replaced in the field? Yes, the Siemens 331-4810 is designed to be serviceable, allowing technicians to replace the ozone-resistant diaphragm if wear is detected over time.
- Is this suitable for fire/smoke damper applications? While the 331 series is versatile, always verify local codes. Typically, these actuators are used for modulation in standard HVAC air distribution.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens 331-4810 is a rugged, metal-fabricated No. 3 Pneumatic Actuator engineered for reliable modulating or two-position control of HVAC dampers and terminal units. Built with all-metal construction and a totally enclosed housing, this 331 Series actuator is a staple for contractors maintaining mixing box dampers, unit ventilators, and air valves. It features a 2-3/8 inch stroke and a nominal 8-13 psi spring range, allowing for precise sequencing with other pneumatic control devices. The ozone-resistant rolling rubber diaphragm ensures long-term performance and consistent torque output under varying load conditions. Designed for versatility, the Siemens 331-4810 includes a front-mounting plate and a 1/8" NPT female air connection with a dual barb fitting for standard 1/4" OD tubing. Professional technicians rely on this damper actuator for its field-proven durability and compatibility with secondary positioning relays in high-demand airflow applications.
Key Benefits- Precision Sequencing: The 8-13 psi spring range allows for optimal coordination with other pneumatic devices in complex HVAC sequences.
- Durable Construction: Heavy-duty metal body and enclosed design protect internal components from debris and mechanical wear.
- Field Reliability: High-quality rolling diaphragm provides smooth, gradual actuation for superior air handling control.
- Standardized Fit: 1/8" NPT air connection and front-mount configuration simplify drop-in replacement for existing HVAC systems.
- How do I confirm if the 8-13 psi range is correct for my system? Check the pressure signal from your controller; this pneumatic actuator is typically used for sequencing when other dampers or valves must move at different pressure thresholds.
- Can the diaphragm be replaced in the field? Yes, the Siemens 331-4810 is designed to be serviceable, allowing technicians to replace the ozone-resistant diaphragm if wear is detected over time.
- Is this suitable for fire/smoke damper applications? While the 331 series is versatile, always verify local codes. Typically, these actuators are used for modulation in standard HVAC air distribution.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












