
Siemens Building Technology 331-2856 Actuator
The Siemens 331-2856 is a heavy-duty Powers Controls No. 6 pneumatic actuator designed for reliable linear control of large dampers, centrifugal refrigeration inlet vanes, and multi-section ventilation systems. This pneumatic damper actuator features a rugged, all-metal body construction to withstand demanding mechanical environments. It operates on a nominal 8-13 psi spring range, providing the high-torque performance required for outdoor air, exhaust, and fan discharge applications. With a 4-inch stroke and an effective diaphragm area of 11 square inches, this model ensures consistent force for even the most resistant HVAC damper control setups. The pivot mount with included clevis allows for flexible installation, specifically facilitating extended shaft or frame mounting for seamless field integration. Engineered for durability, it utilizes a replaceable ozone-resistant silicone diaphragm, ensuring long-term maintenance is straightforward for on-site technicians. This unit is frequently deployed as a direct replacement actuator in systems requiring precise sequencing with other pneumatic control devices.
- No. 6 Pneumatic Actuator frame provides maximum thrust for heavy-duty dampers.
- Durable metal body construction ensures structural integrity in high-vibration applications.
- Replaceable silicone rubber rolling diaphragm simplifies service and extends service life.
- Versatile pivot mounting style with clevis accommodates various linkage configurations.
- UL recognized for use in specialized fire and smoke damper applications.
- What is the maximum air pressure for the Siemens 331-2856? This actuator is rated for a maximum air pressure of 25 to 30 psi.
- Does this model include a positioning relay? No, the 331-2856 is the standard actuator; for the version with a positioning relay, the 332-2856 is typically required.
- Can the internal diaphragm be replaced? Yes, the ozone-resistant diaphragm is designed to be field-replaceable to reduce downtime.
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: $311.07
-65%$311.07
$108.87Siemens Building Technology 331-2856 Actuator
The Siemens 331-2856 is a heavy-duty Powers Controls No. 6 pneumatic actuator designed for reliable linear control of large dampers, centrifugal refrigeration inlet vanes, and multi-section ventilation systems. This pneumatic damper actuator features a rugged, all-metal body construction to withstand demanding mechanical environments. It operates on a nominal 8-13 psi spring range, providing the high-torque performance required for outdoor air, exhaust, and fan discharge applications. With a 4-inch stroke and an effective diaphragm area of 11 square inches, this model ensures consistent force for even the most resistant HVAC damper control setups. The pivot mount with included clevis allows for flexible installation, specifically facilitating extended shaft or frame mounting for seamless field integration. Engineered for durability, it utilizes a replaceable ozone-resistant silicone diaphragm, ensuring long-term maintenance is straightforward for on-site technicians. This unit is frequently deployed as a direct replacement actuator in systems requiring precise sequencing with other pneumatic control devices.
- No. 6 Pneumatic Actuator frame provides maximum thrust for heavy-duty dampers.
- Durable metal body construction ensures structural integrity in high-vibration applications.
- Replaceable silicone rubber rolling diaphragm simplifies service and extends service life.
- Versatile pivot mounting style with clevis accommodates various linkage configurations.
- UL recognized for use in specialized fire and smoke damper applications.
- What is the maximum air pressure for the Siemens 331-2856? This actuator is rated for a maximum air pressure of 25 to 30 psi.
- Does this model include a positioning relay? No, the 331-2856 is the standard actuator; for the version with a positioning relay, the 332-2856 is typically required.
- Can the internal diaphragm be replaced? Yes, the ozone-resistant diaphragm is designed to be field-replaceable to reduce downtime.
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 331-2856 is a heavy-duty Powers Controls No. 6 pneumatic actuator designed for reliable linear control of large dampers, centrifugal refrigeration inlet vanes, and multi-section ventilation systems. This pneumatic damper actuator features a rugged, all-metal body construction to withstand demanding mechanical environments. It operates on a nominal 8-13 psi spring range, providing the high-torque performance required for outdoor air, exhaust, and fan discharge applications. With a 4-inch stroke and an effective diaphragm area of 11 square inches, this model ensures consistent force for even the most resistant HVAC damper control setups. The pivot mount with included clevis allows for flexible installation, specifically facilitating extended shaft or frame mounting for seamless field integration. Engineered for durability, it utilizes a replaceable ozone-resistant silicone diaphragm, ensuring long-term maintenance is straightforward for on-site technicians. This unit is frequently deployed as a direct replacement actuator in systems requiring precise sequencing with other pneumatic control devices.
- No. 6 Pneumatic Actuator frame provides maximum thrust for heavy-duty dampers.
- Durable metal body construction ensures structural integrity in high-vibration applications.
- Replaceable silicone rubber rolling diaphragm simplifies service and extends service life.
- Versatile pivot mounting style with clevis accommodates various linkage configurations.
- UL recognized for use in specialized fire and smoke damper applications.
- What is the maximum air pressure for the Siemens 331-2856? This actuator is rated for a maximum air pressure of 25 to 30 psi.
- Does this model include a positioning relay? No, the 331-2856 is the standard actuator; for the version with a positioning relay, the 332-2856 is typically required.
- Can the internal diaphragm be replaced? Yes, the ozone-resistant diaphragm is designed to be field-replaceable to reduce downtime.
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.












