Fire Dampers Services for Industrial Projects
Basic Description
Sagiant Piping Industries supplies fire dampers for HVAC ducts and wall/floor penetrations — curtain-blade (folding) and multi-blade dynamic fire dampers in galvanized steel with stainless options, rated for 1.5-hour and 3-hour fire resistance. Fire dampers close on a 72°C (165°F) fusible link or thermal release and are built and tested to UL 555, BS EN 1366-2, BS 476 Part 20 and AMCA 540 with installation sleeves, breakaway connections and access doors, supplied with fire-rating certificates and full project documentation.
Fire damper types, materials, sizes and fire-rating reference data
Fire dampers for duct penetrations of fire-rated walls and floors. Sagiant Piping Industries / SPI Steel keeps damper types, construction materials, sizes, standards and fire-rating data on one page for HVAC and life-safety teams.
Technical Specification
| Parameter | Specification |
|---|---|
| Product Type | Curtain-blade (folding) & dynamic multi-blade fire dampers |
| Material | Galvanized steel (GI), SS 304 / 316 options |
| Fire Rating | 1.5 hour & 3 hour (per tested assembly) |
| Release | 72°C / 165°F fusible link (also 141°C); thermal / electro-thermal |
| Blade | Folding curtain or airfoil / dynamic blades |
| Frame / Sleeve | Mounting sleeve with breakaway duct connection |
| Access | Inspection / reset access door |
| Standards | UL 555, EN 1366-2, BS 476-20, AMCA 540 |
Construction Materials
| Material | Grade / Spec | Typical Use | Finish |
|---|---|---|---|
| Galvanized steel (GI) | IS 277 / ASTM A653, Z180–Z275 | Frame & blades (standard) | Pre-galvanized |
| Cold-rolled steel (CRCA) | IS 513 / ASTM A1008 | Frames, linkage parts | Powder coated |
| Extruded aluminium | 6063-T5 | Light-weight blades & frame | Mill / anodized |
| Stainless steel | 304 / 316 (ASTM A240) | Cleanroom, kitchen-exhaust, corrosive | 2B / brushed |
Fire Damper Types
| Type | Description | Typical Use |
|---|---|---|
| Curtain-blade (Type A / B) | Folding blade stack springs shut | Static-system fire walls & floors |
| Dynamic multi-blade | Airfoil blades close under airflow | Systems running during fire (dynamic) |
| Combination fire / smoke | UL 555 + UL 555S rated | Where both fire & smoke control are needed |
| Round fire damper | Curtain blade in spigot frame | Circular duct penetrations |
Standards & Specifications
| Scope | Applicable Standards |
|---|---|
| Fire resistance | UL 555, BS EN 1366-2, BS 476 Part 20 / 22 |
| Classification | EN 13501-3 (EI rating), AMCA 540 |
| Construction | SMACNA, NFPA 90A, project specification |
| Material | ASTM A653 (GI), ASTM A240 (SS) |
Testing, Inspection & Documentation
| Test / Document | Detail |
|---|---|
| Fire rating | UL 555 / EN 1366-2 furnace test, EI classification |
| Release | Fusible-link / actuator closure function test |
| Cycle | Open/close operation & spring-closure check |
| Dimensional | Frame, sleeve & blade-pack check |
| Documentation | Fire-rating certificate, installation manual, dispatch list |
Applications & Industries Served
Available Forms, Sizes & Range
Share wall/floor fire rating, duct size and static/dynamic system type to select the correct tested assembly.
| Item | Size Range | Wall / Thickness / Rating | Standard |
|---|---|---|---|
| Rectangular fire damper | 150 x 150 to 1200 x 1200 mm (modular) | 1.2–1.6 mm GI | UL 555 / EN 1366-2 |
| Round fire damper | 100–630 mm dia | GI | UL 555 |
Frequently Asked Questions
What fire ratings are available?
Fire dampers are supplied for 1.5-hour and 3-hour fire resistance per the tested UL 555 / EN 1366-2 assembly.
How does a fire damper close?
A 72°C (165°F) fusible link, or a thermal/electro-thermal release, melts in a fire and lets the curtain or spring-loaded blades close and seal the duct.
What is the difference between static and dynamic fire dampers?
Static (curtain-blade) dampers are for systems that shut down in fire; dynamic dampers are tested to close against airflow when the fan keeps running.
Are combination fire and smoke dampers available?
Yes — combination dampers rated to both UL 555 and UL 555S control fire and smoke through a single unit.
What documentation is provided?
Fire-rating test certificates, installation sleeves and instructions, and project inspection records.
Scope of Work
The fire dampers scope can include project review, fabrication support, dimensional coordination, inspection documentation and dispatch support for industrial installations.
Applications
For related project work, review Custom Fabrication, Contact Sales or for technical assistance.
Types of Products
| Type | Description |
|---|---|
| Fabricated Assemblies | Built as per drawing and site requirement |
| Sheet Metal Products | Doors, dampers, diffusers and HVAC items |
| Tanks / Skids | Prefabricated tanks and supporting assemblies |
| Custom Items | Project-specific metal fabrication |
Available Forms
Related Pages
From requirement to dispatch
A drawing-led, inspection-backed process for engineered and fabricated supply — the same discipline on every project.
- 01
Requirement Review
Drawing, BOQ, specification and project scope reviewed to confirm feasibility.
- 02
Design & Specification
Material, method, tolerance and finish aligned to the applicable standard.
- 03
Fabrication Planning
Production planned with inspection and test points built into the sequence.
- 04
Inspection & QA
Dimensional and visual inspection against drawing, with documentation as required.
- 05
Packing & Dispatch
Tagging, packing and dispatch documentation for on-time project delivery.
Frequently Asked Questions
What materials does Sagiant Piping Industries supply?
Sagiant Piping Industries can supply stainless steel, carbon steel, alloy steel, duplex, super duplex and nickel alloy products subject to project requirement.
Do you provide MTC and test certificates?
MTC, test certificates, heat number traceability and inspection documents can be coordinated based on the material, standard and project scope.
Can Sagiant supply as per project BOQ?
Yes. The team can review BOQs, line lists, drawings and specifications to support pipes, fittings, flanges, fasteners and fabricated items.
Do you support third-party inspection?
Third-party inspection, PMI and dimensional inspection support can be arranged when required by the enquiry or project documentation.
Can you work from drawings or site requirements?
Engineering and fabrication enquiries can be reviewed from drawings, BOQs, approved samples or project specifications.
Do you provide custom fabrication services for industrial projects?
Custom fabrication support is available for industrial assemblies, tanks, duct accessories, clean room items and project-specific metal works.
A controlled path from requirement to delivery support
A technical RFQ flow built for engineers, QA teams and project buyers who need clear standards, traceability and dispatch documentation.
Requirement Submission
Share product, grade, size, class, quantity, drawing and delivery location.
Technical Review
Review standards, specifications, missing inputs and service conditions.
Material Selection
Align stainless, carbon, alloy, duplex, titanium or nickel alloy grades.
Quotation & Approval
Confirm commercial scope, documents, inspection needs and timelines.
Production / Sourcing
Coordinate manufacturing, stock sourcing or fabrication as per scope.
Quality Inspection
Manage dimensional checks, MTC review, PMI or third-party inspection.
Dispatch & Documentation
Prepare packing, tagging, test certificates and dispatch documents.
Delivery Support
Support delivery coordination, document handover and project closure.
Find the right product path
Choose what you need and jump directly to the correct product, material or engineering section.
304/L, 316/L, 321, 347 and 904L for corrosion-resistant piping, fittings, flanges and fabrication.
View stainless steelASTM A106, A53, A105, API 5L and IS 2062 for pressure, utility and structural supply.
View carbon steelUNS S31803, S32205, S32750 and S32760 for chloride, offshore and desalination service.
View duplex gradesInconel, Monel, Hastelloy, Incoloy and Nickel 200/201 for severe corrosion and heat service.
View nickel alloys