Miami Tech

Miami Tech - US3-6 - 6" Round Fire Damper US3

Item: MIAUS306
MFG: US3-6
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Fire Damper Description
Curtain-type fire dampers are designed to restrict the spread of fire through ventilation systems by shutting when the link melts. Fire dampers are evaluated for use in either Static applications (for HVAC Systems that are automatically shut down in the event of a fire) or Dynamic applications (for HVAC Systems that continue to operate in the event of a fire).

Fire Damper Ordering Guidelines
1. When ordering fire dampers, designate the appropriate model number to specify static or dynamic rating.
2. When ordering dynamically rated fire dampers, also refer to Figures 1 through 6 on page 4. When duct sizes are larger than the sizes shown, multiple unit assemblies are required. Since each individual damper in the assembly has its own heat responsive device, it must be assumed that each damper will close at slightly different times. Because of this, Underwriters Laboratories requires that the total volume of air for the assembly must not exceed the allowable rating of the smallest unit in the assembly.
Example: A model 151A 24" x 24" is ordered to be installed in a Vertical In-Duct position (see Figure 2, pg. 4). This unit shall be assembled in (1) 24" x 24" section, which according to the table, is rated for an air volume of 11,236 CFM with an air velocity of 2,809 FPM and a static pressure (Ps) of 6" w.g. Therefore, the 24" x 24" unit will have a maximum air volume of no more than 11,236 CFM with an air velocity of 2,809 FPM and a static pressure (Ps) of 6" w.g.
3. For CFM of a Round Collar unit (Type C), multiply the CFM in the appropriate figures by .785.

Required Information For Ordering
1. Please specify dimensions of damper: Width (in.) x Height (in.)
Note: For round dampers, specify diameter. Dampers are manufactured 1/4" undersized, unless actual size is requested.
2. Please select model number:
151A - Dynamic Fire Damper, blades in the airstream. (1-1/2 hour fire-rated)
151B - Dynamic Fire Damper, blades out of the airstream. (1-1/2 hour fire-rated)
151C - Dynamic Fire Damper with round transitions. (1-1/2 hour fire-rated)
150E - Static Slimline Fire Damper, blades in the airstream. (Vertical/Horizontal 1-1/2 hour fire-rated)
150F - Static Slimline Fire Damper, blades in the airstream. (Vertical 3 hour fire-rated)
3. Please specify temperature of the fusible link: 165°F (standard) or 212°F (optional)
4. Are factory-installed sleeves required? Y/N, if yes, please specify length of sleeve.
Note: Available lengths: 8", 10", 12", 14", 16", 18", 20", 24". Standard sleeve is 12" in length, 22 gauge. As a defualt, fire dampers are installed centered in the sleeve. Off-center installation is available upon request.
5. Are pre-cut mounting angles required? Y/N
Note: Set includes 4 individual angles per side, 8 in total.

California residents: see Proposition 65 Warning

Features and Specification

Weight 1.300000
Length 4.500000
Package Weight 1.300000
UPC 662761644611
Warranty Offered Yes
Size 6"
Width 6.500000
Shape Round
Cubic Measurement 0.110000
Damper Type Fusible link
Composition Steel
Color Gray, Silver
Brand Miami Tech
Diameter 6"
Height 6.500000
EAN 0662761644611
Galvanized Yes
Gauge 16 GA; 22 GA
Finish Galvanized