Louvers & Dampers
Lloyd Industries
UL-listed fire, smoke, combination, and ceiling radiation dampers manufactured in the USA — with the broadest standard size range and fastest lead times in the industry.
Fire DampersSmoke DampersCombination DampersCeiling Radiation DampersMade in USAFast Lead Times
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UL 555
& UL 555S Listed
Made
in USA
4×4″ to 60×60″
Standard Sizes
Fast
Lead Times
Product Lines
Solutions & Product Series
Lloyd Industries has manufactured UL-listed fire and smoke dampers in the USA since 1972. Known for broad standard size availability, quality construction, and responsive customer service, Lloyd is a go-to source when projects require quick turnaround on life-safety dampers without sacrificing quality.
FD/FDS Series Fire Dampers
Dynamic and static fire dampers for rated penetrations
- UL 555 listed — 1.5-hour and 3-hour ratings
- Dynamic rating for use in operating systems
- Static rating for systems shut down on fire alarm
- Curtain blade closure — spring-driven fail-safe
- Fusible link: 165°F, 212°F, 286°F options
- Standard sizes: 4×4″ to 60×60″
SD Series Smoke Dampers
UL 555S listed smoke control dampers
- Class I leakage — low-leakage blade seals
- Class II leakage — standard blade design
- Operating temperature: -40°F to 250°F
- Spring-return actuator standard — Belimo or Siemens
- Position switch feedback for BAS monitoring
- Standard sizes: 8×8″ to 48×48″
FSD Combination Dampers
Single-unit fire and smoke damper compliance
- Dual-listed: UL 555 + UL 555S
- 1.5-hour and 3-hour fire resistance ratings
- Class I and Class II leakage options
- Spring-return with thermal backup closure
- Preferred for healthcare and high-rise projects
- Standard sizes match fire and smoke damper range
CRD Ceiling Radiation Dampers
Fire-rated ceiling membrane dampers
- UL 555C listed ceiling radiation dampers
- Round: 4″ to 16″ duct diameter
- Rectangular: standard T-bar sizes
- Spring-loaded closure — no actuator required
- Fusible link: 165°F
- Listed for T-bar and hard-lid ceiling assemblies
Why Choose Lloyd Industries
Key Advantages
Made in the USA
Every Lloyd damper is manufactured at their Pennsylvania facility — providing reliable quality, fast lead times, and domestic supply chain security.
Fast Lead Times
Lloyd maintains broad standard size inventory and high-volume production capacity — critical when project schedules are tight.
50+ Years of Experience
Manufacturing fire and smoke dampers since 1972 — Lloyd’s team has solved virtually every challenging application requirement.
Broadest Standard Sizes
Standard size range from 4×4″ to 60×60″ covers most commercial applications without custom orders.
Easy Installation
Clear installation instructions, labeled components, and consistent product quality reduce installation time on every project.
Full Submittal Support
UL listing cards, installation data, and submittal documentation provided promptly — keeping your submittal packages moving through review.
Applications & Markets Served
Commercial Office BuildingsHealthcare FacilitiesSchools & UniversitiesGovernment BuildingsHigh-Rise ResidentialHotels & ResortsRetail CentersIndustrial FacilitiesCorrectional FacilitiesParking StructuresData CentersPerforming Arts Venues
Specify Lloyd Industries on Your Next Project
Contact Capital Energy Equipment for product selection, submittals, and engineering support.