S&P MD Series Motorized Dampers
The S&P MD series normally closed (power open) motorized dampers for round ducts can be used to control the sequencing of outside air in forced-air systems. The standard dampers are 24V but you can add the 120V to 24V transformer to power them with standard 120VAC.
Available in sizes 4 through 14 inch.
NORMALLY CLOSED = Closed damper when power OFF
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Do you have questions about the products on this page? Click on the ? image on the left or this link to ask us your questions! |
| #1 | Q: How often does the MD6 exchange in outside air? How is this controlled and is there a way to turn it off during extreme outside temperatures? A: This is just a motorized damper. It is normally connected to a controller for on/off operation. Take a look at the MD6-ES24VK damper and controller kit: https://www.hvacquick.com/products/commercial/Commercial-Fans/Makeup-Air-Fans/S-P-MD6-ES24VK-Outside-Air-Motorized-Damper-Kit Asked on 2024-01-13 by TW |
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| #2 | Q: How long does it take for the damper to fully open? A: 3-4 seconds actuation time. Asked on 2023-05-01 by Matt |
| #3 | Q: What is the actuators Operating Temperature Range and Torque? Is the actuator made for both 24VAC and 24VDC? A: These need to be kept under 104F and are for 24vac. Torque values are not provided nor did the factory know. Asked on 2023-01-16 by FM |
| #4 | Q: When closed, does this damper form an airtight seal? A: Depends on your definition of airtight. The blade closes against a rubber seal. Asked on 2022-05-16 by AA |
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