Siemens Building Technology 331-2963 Actuator
The Siemens 331-2963 is a rugged, No. 4 pneumatic damper actuator designed for reliable control in high-demand HVAC and fire/smoke systems. Built with a durable metal-fabricated body, this piston-type actuator features a 4-inch stroke and a nominal spring range of 8 to 13 psi, making it ideal for the gradual or positive actuation of dampers in ventilating systems and mixing boxes. This specific model is configured for a front mount installation using non-pivot mounting screws, providing a stable mechanical connection to the damper frame or ductwork.
Designed for long-term field performance, the 331-2963 pneumatic actuator utilizes a replaceable ozone-resistant EPDM rubber rolling diaphragm. This ensures a consistent effective diaphragm area throughout the entire stroke, delivering smooth modulation and high torque for medium-sized air handling components. The unit is equipped with a 1/8-inch NPT female air connection and includes a dual barb elbow fitting for 1/4-inch OD tubing, facilitating straightforward integration into existing pneumatic control systems.
Key Benefits- Direct Front Mounting: Simplifies installation on damper frames or ducts where space is limited.
- All-Metal Construction: Provides superior durability and heat resistance compared to plastic alternatives.
- Long Stroke Performance: The 4-inch travel accommodates various linkage configurations for accurate damper positioning.
- Serviceable Design: Field-replaceable diaphragm allows for cost-effective maintenance without full unit replacement.
Is the 331-2963 compatible with fire and smoke dampers?
Yes, this No. 4 actuator is a UL recognized component specifically suitable for use on fire/smoke and leakage-rated dampers.
What is the maximum air pressure for this actuator?
The unit is rated for a maximum control air pressure of 30 psig.
Does this model include a positioning relay?
The 331-2963 is a basic front-mount model; if precise stem positioning is required for high-friction dampers, a separate positioning relay can be field-mounted.
This item is not eligible for free shipping.
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: $153.84
-65%$153.84
$53.84Siemens Building Technology 331-2963 Actuator
The Siemens 331-2963 is a rugged, No. 4 pneumatic damper actuator designed for reliable control in high-demand HVAC and fire/smoke systems. Built with a durable metal-fabricated body, this piston-type actuator features a 4-inch stroke and a nominal spring range of 8 to 13 psi, making it ideal for the gradual or positive actuation of dampers in ventilating systems and mixing boxes. This specific model is configured for a front mount installation using non-pivot mounting screws, providing a stable mechanical connection to the damper frame or ductwork.
Designed for long-term field performance, the 331-2963 pneumatic actuator utilizes a replaceable ozone-resistant EPDM rubber rolling diaphragm. This ensures a consistent effective diaphragm area throughout the entire stroke, delivering smooth modulation and high torque for medium-sized air handling components. The unit is equipped with a 1/8-inch NPT female air connection and includes a dual barb elbow fitting for 1/4-inch OD tubing, facilitating straightforward integration into existing pneumatic control systems.
Key Benefits- Direct Front Mounting: Simplifies installation on damper frames or ducts where space is limited.
- All-Metal Construction: Provides superior durability and heat resistance compared to plastic alternatives.
- Long Stroke Performance: The 4-inch travel accommodates various linkage configurations for accurate damper positioning.
- Serviceable Design: Field-replaceable diaphragm allows for cost-effective maintenance without full unit replacement.
Is the 331-2963 compatible with fire and smoke dampers?
Yes, this No. 4 actuator is a UL recognized component specifically suitable for use on fire/smoke and leakage-rated dampers.
What is the maximum air pressure for this actuator?
The unit is rated for a maximum control air pressure of 30 psig.
Does this model include a positioning relay?
The 331-2963 is a basic front-mount model; if precise stem positioning is required for high-friction dampers, a separate positioning relay can be field-mounted.
This item is not eligible for free shipping.
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 331-2963 is a rugged, No. 4 pneumatic damper actuator designed for reliable control in high-demand HVAC and fire/smoke systems. Built with a durable metal-fabricated body, this piston-type actuator features a 4-inch stroke and a nominal spring range of 8 to 13 psi, making it ideal for the gradual or positive actuation of dampers in ventilating systems and mixing boxes. This specific model is configured for a front mount installation using non-pivot mounting screws, providing a stable mechanical connection to the damper frame or ductwork.
Designed for long-term field performance, the 331-2963 pneumatic actuator utilizes a replaceable ozone-resistant EPDM rubber rolling diaphragm. This ensures a consistent effective diaphragm area throughout the entire stroke, delivering smooth modulation and high torque for medium-sized air handling components. The unit is equipped with a 1/8-inch NPT female air connection and includes a dual barb elbow fitting for 1/4-inch OD tubing, facilitating straightforward integration into existing pneumatic control systems.
Key Benefits- Direct Front Mounting: Simplifies installation on damper frames or ducts where space is limited.
- All-Metal Construction: Provides superior durability and heat resistance compared to plastic alternatives.
- Long Stroke Performance: The 4-inch travel accommodates various linkage configurations for accurate damper positioning.
- Serviceable Design: Field-replaceable diaphragm allows for cost-effective maintenance without full unit replacement.
Is the 331-2963 compatible with fire and smoke dampers?
Yes, this No. 4 actuator is a UL recognized component specifically suitable for use on fire/smoke and leakage-rated dampers.
What is the maximum air pressure for this actuator?
The unit is rated for a maximum control air pressure of 30 psig.
Does this model include a positioning relay?
The 331-2963 is a basic front-mount model; if precise stem positioning is required for high-friction dampers, a separate positioning relay can be field-mounted.
This item is not eligible for free shipping.
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.
