Siemens Building Technology 331-3000 Actuator
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Siemens Building Technology 331-3000 Actuator

Siemens Building Technology 331-3000 Actuator

The Siemens 331-3000 is a heavy-duty, No. 4 pneumatic damper actuator engineered for reliable control of large dampers in commercial HVAC environments. As a veteran-preferred HVAC pneumatic control solution, this rugged, metal-fabricated unit is designed to provide gradual or positive actuation of terminal units, mixing boxes, and fire/smoke dampers. It features a 4-inch stroke and a nominal 3-7 psi spring range, allowing for precise sequencing with other pneumatic devices in complex building automation systems. This specific model serves as the official direct replacement for MCP-1130-8520, ensuring a seamless retrofit for legacy Johnson Controls or Barber-Colman installations without the need for extensive field modifications.

Built with a high-strength aluminum housing and an ozone-resistant EP rubber rolling diaphragm, the 331-3000 is intended for high-cycle applications where long-term durability is non-negotiable. The included universal mounting kit provides maximum field flexibility, supporting both extended shaft and frame mounting configurations. For contractors managing pneumatic actuator retrofit projects, the 1/8" NPT internal air connection and 3/8"-24 threaded output shaft make this "Universal No. 4" the standard choice for maintaining system integrity while simplifying inventory requirements.

  • Direct Compatibility: Functionally replaces the MCP-1130-8520 for easy maintenance of legacy pneumatic systems.
  • Rugged Construction: Features an all-metal body and rolling diaphragm design to withstand high temperatures and demanding mechanical loads.
  • Installation Flexibility: The universal kit includes an integral pivot and pivot post, accommodating diverse mounting needs on the job site.
  • Field Serviceable: Designed with a replaceable diaphragm and field-accessible internal components to keep systems online with minimal downtime.
  • Versatile Sequencing: The 3-7 psi spring range is calibrated for standard industrial sequencing, ideal for multi-actuator configurations.

Common Questions

Can the 331-3000 be used for fire and smoke damper applications?
Yes, the No. 4 actuator is UL recognized for use on fire/smoke and leakage-rated dampers, providing the necessary torque and reliability for safety-critical pneumatic loops.

What is required for the air connection on this model?
The unit comes with a standard 1/8-inch NPT internal thread. It is typically supplied with a dual barb elbow fitting to accommodate 1/4-inch O.D. plastic or copper tubing.

Is the universal mounting kit compatible with all damper shafts?
The universal kit is designed to mount on plates for extended shafts or directly to the damper frame. It includes a clevis and crank arm compatible with standard 3/8-inch through 1/2-inch diameter shafts.

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.

$90.22

Original: $257.76

-65%
Siemens Building Technology 331-3000 Actuator

$257.76

$90.22

Siemens Building Technology 331-3000 Actuator

The Siemens 331-3000 is a heavy-duty, No. 4 pneumatic damper actuator engineered for reliable control of large dampers in commercial HVAC environments. As a veteran-preferred HVAC pneumatic control solution, this rugged, metal-fabricated unit is designed to provide gradual or positive actuation of terminal units, mixing boxes, and fire/smoke dampers. It features a 4-inch stroke and a nominal 3-7 psi spring range, allowing for precise sequencing with other pneumatic devices in complex building automation systems. This specific model serves as the official direct replacement for MCP-1130-8520, ensuring a seamless retrofit for legacy Johnson Controls or Barber-Colman installations without the need for extensive field modifications.

Built with a high-strength aluminum housing and an ozone-resistant EP rubber rolling diaphragm, the 331-3000 is intended for high-cycle applications where long-term durability is non-negotiable. The included universal mounting kit provides maximum field flexibility, supporting both extended shaft and frame mounting configurations. For contractors managing pneumatic actuator retrofit projects, the 1/8" NPT internal air connection and 3/8"-24 threaded output shaft make this "Universal No. 4" the standard choice for maintaining system integrity while simplifying inventory requirements.

  • Direct Compatibility: Functionally replaces the MCP-1130-8520 for easy maintenance of legacy pneumatic systems.
  • Rugged Construction: Features an all-metal body and rolling diaphragm design to withstand high temperatures and demanding mechanical loads.
  • Installation Flexibility: The universal kit includes an integral pivot and pivot post, accommodating diverse mounting needs on the job site.
  • Field Serviceable: Designed with a replaceable diaphragm and field-accessible internal components to keep systems online with minimal downtime.
  • Versatile Sequencing: The 3-7 psi spring range is calibrated for standard industrial sequencing, ideal for multi-actuator configurations.

Common Questions

Can the 331-3000 be used for fire and smoke damper applications?
Yes, the No. 4 actuator is UL recognized for use on fire/smoke and leakage-rated dampers, providing the necessary torque and reliability for safety-critical pneumatic loops.

What is required for the air connection on this model?
The unit comes with a standard 1/8-inch NPT internal thread. It is typically supplied with a dual barb elbow fitting to accommodate 1/4-inch O.D. plastic or copper tubing.

Is the universal mounting kit compatible with all damper shafts?
The universal kit is designed to mount on plates for extended shafts or directly to the damper frame. It includes a clevis and crank arm compatible with standard 3/8-inch through 1/2-inch diameter shafts.

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.

Product Information

Shipping & Returns

Description

The Siemens 331-3000 is a heavy-duty, No. 4 pneumatic damper actuator engineered for reliable control of large dampers in commercial HVAC environments. As a veteran-preferred HVAC pneumatic control solution, this rugged, metal-fabricated unit is designed to provide gradual or positive actuation of terminal units, mixing boxes, and fire/smoke dampers. It features a 4-inch stroke and a nominal 3-7 psi spring range, allowing for precise sequencing with other pneumatic devices in complex building automation systems. This specific model serves as the official direct replacement for MCP-1130-8520, ensuring a seamless retrofit for legacy Johnson Controls or Barber-Colman installations without the need for extensive field modifications.

Built with a high-strength aluminum housing and an ozone-resistant EP rubber rolling diaphragm, the 331-3000 is intended for high-cycle applications where long-term durability is non-negotiable. The included universal mounting kit provides maximum field flexibility, supporting both extended shaft and frame mounting configurations. For contractors managing pneumatic actuator retrofit projects, the 1/8" NPT internal air connection and 3/8"-24 threaded output shaft make this "Universal No. 4" the standard choice for maintaining system integrity while simplifying inventory requirements.

  • Direct Compatibility: Functionally replaces the MCP-1130-8520 for easy maintenance of legacy pneumatic systems.
  • Rugged Construction: Features an all-metal body and rolling diaphragm design to withstand high temperatures and demanding mechanical loads.
  • Installation Flexibility: The universal kit includes an integral pivot and pivot post, accommodating diverse mounting needs on the job site.
  • Field Serviceable: Designed with a replaceable diaphragm and field-accessible internal components to keep systems online with minimal downtime.
  • Versatile Sequencing: The 3-7 psi spring range is calibrated for standard industrial sequencing, ideal for multi-actuator configurations.

Common Questions

Can the 331-3000 be used for fire and smoke damper applications?
Yes, the No. 4 actuator is UL recognized for use on fire/smoke and leakage-rated dampers, providing the necessary torque and reliability for safety-critical pneumatic loops.

What is required for the air connection on this model?
The unit comes with a standard 1/8-inch NPT internal thread. It is typically supplied with a dual barb elbow fitting to accommodate 1/4-inch O.D. plastic or copper tubing.

Is the universal mounting kit compatible with all damper shafts?
The universal kit is designed to mount on plates for extended shafts or directly to the damper frame. It includes a clevis and crank arm compatible with standard 3/8-inch through 1/2-inch diameter shafts.

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.