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These Siemens 331-2961 damper actuators have never been installed. They are designed to open and close fire dampers. They are rated for 250 degrees F or 121 C. They are capable of operating a damper 36 inches wide or 48 inches high or 12 square feet. They require a supply of 25 PSI and operate from 8 to 13 PSI.
(Siemens 4 inch pneumatic fire damper actuator lot of 3 was posted and is owned by: Andrew Buck) |
andrew_buck@chicagopartsnetwork.com (Andrew Buck) for more information.
