Greenheck Fan SSSMDR-501 is a round smoke damper designed for use in HVAC systems. It meets the requirements of smoke dampers established by the National Fire Protection Association, the International Building Codes, the New York City MEA, and the California State Fire Marshal. The SSSMDR-501 has a UL 555S Leakage Class I rating and can handle a maximum velocity of 3000 fpm (15.2 m/s) and a pressure of 4 in. wg (1.0 kPa) for operational closure in emergency smoke control situations. It is constructed of 20 ga. (1mm) stainless steel integral sleeve and has double skin stainless steel (14 ga.
Greenheck Fan SSSMDR-501 is a round smoke damper designed for use in HVAC systems. It meets the requirements of smoke dampers established by the National Fire Protection Association, the International Building Codes, the New York City MEA, and the California State Fire Marshal. The SSSMDR-501 has a UL 555S Leakage Class I rating and can handle a maximum velocity of 3000 fpm (15.2 m/s) and a pressure of 4 in. wg (1.0 kPa) for operational closure in emergency smoke control situations. It is constructed of 20 ga. (1mm) stainless steel integral sleeve and has double skin stainless steel (14 ga.
Greenheck Fan SSSMDR-501 is a round smoke damper designed for use in HVAC systems. It meets the requirements of smoke dampers established by the National Fire Protection Association, the International Building Codes, the New York City MEA, and the California State Fire Marshal. The SSSMDR-501 has a UL 555S Leakage Class I rating and can handle a maximum velocity of 3000 fpm (15.2 m/s) and a pressure of 4 in. wg (1.0 kPa) for operational closure in emergency smoke control situations. It is constructed of 20 ga. (1mm) stainless steel integral sleeve and has double skin stainless steel (14 ga.
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