Louvers Services for Industrial Projects
Basic Description
Sagiant Piping Industries manufactures aluminium and steel air louvers — weather/storm-proof louvers, drainable-blade louvers, sand-trap louvers, sight-proof and acoustic louvers, and door/transfer louvers — for fresh-air intake, exhaust and equipment screening. Louvers are built in extruded aluminium 6063, powder-coated GI/CRCA and stainless steel 304/316 to AMCA 500-L, BS EN 13030 and SMACNA practice with rated free area, water-penetration and pressure-drop data, optional bird/insect mesh and any RAL or anodized finish.
Louver types, materials, sizes and weather-performance reference data
Air louvers for fresh-air intake, exhaust and screening. Sagiant Piping Industries / SPI Steel keeps louver types, construction materials, free area, standards and water-performance data on one page for HVAC and facade teams.
Technical Specification
| Parameter | Specification |
|---|---|
| Product Type | Weather, drainable, sand-trap, sight-proof, acoustic & door louvers |
| Material | Extruded aluminium 6063, GI / CRCA, SS 304 / 316 |
| Blade | Fixed 30° / 45° storm-proof, drainable gutter or chevron / Z-blade |
| Free Area | Typically 35–55% depending on blade profile & pitch |
| Mesh | Bird screen (12–20 mm) or insect mesh, aluminium / stainless |
| Frame | Channel / flanged box frame, 1–2 mm extrusion or sheet |
| Finish | Powder coated (any RAL), anodized, mill or stainless finish |
| Performance | AMCA 500-L rated free area, water penetration & pressure drop |
Construction Materials
| Material | Grade / Spec | Typical Use | Finish |
|---|---|---|---|
| Extruded aluminium | 6063-T5 | Face, frame, blades & bars | Powder coated / anodized |
| Aluminium sheet | 1100 / 3003 | Cones, back pan, plenum | Powder coated / mill |
| Galvanized steel (GI) | IS 277 / ASTM A653, Z180–Z275 | Plenum box, frame, blades | Pre-galvanized / powder coated |
| Cold-rolled steel (CRCA) | IS 513 / ASTM A1008 | Frames, damper blades | Powder coated |
| Stainless steel | 304 / 316 (ASTM A240) | Cleanroom, kitchen, corrosive areas | 2B / brushed (No.4) |
Louver Types
| Type | Description | Typical Use |
|---|---|---|
| Weather / storm louver | 45° fixed blades, rain defence | General fresh-air intake & exhaust |
| Drainable-blade louver | Gutter blades drain water outward | High-rain / facade intake |
| Sand-trap louver | Two-stage inertial blades | Desert / dusty intake (pre-filtration) |
| Sight-proof louver | Inverted-V / chevron, no see-through | Plant rooms, screening, security |
| Acoustic louver | Aerofoil blades with acoustic infill | Generator / plant rooms needing noise control |
| Performance / aerofoil louver | High free area, low pressure drop | Large intake where airflow is critical |
Standards & Specifications
| Scope | Applicable Standards |
|---|---|
| Air & water performance | AMCA 500-L, AMCA 511 certified ratings |
| Weather / facade | BS EN 13030 (rain defence), EN 13501 (acoustic louvers) |
| Construction | SMACNA, project specification |
| Material | Aluminium 6063, ASTM A653 (GI), ASTM A240 (SS) |
| Finish / coating | Powder coat, ASTM B117 salt-spray, anodizing |
Testing, Inspection & Documentation
| Test / Document | Detail |
|---|---|
| Air / water | AMCA 500-L free area, water-penetration & pressure-drop test |
| Finish | Coating thickness (DFT), adhesion, ASTM B117 salt-spray |
| Dimensional | Blade pitch, free area, frame squareness |
| Material | EN 10204 2.2 / 3.1 mill certificate on request |
| Inspection | Sample approval, GA drawing sign-off, dispatch checklist |
Applications & Industries Served
Available Forms, Sizes & Range
Share opening size, required airflow, rain exposure and noise limits to select blade profile and free area.
| Item | Size Range | Wall / Thickness / Rating | Standard |
|---|---|---|---|
| Standard louver | To 3000 x 3000 mm in panels | 1–2 mm aluminium / GI | AMCA 500-L / EN 13030 |
| Acoustic louver | 300–600 mm deep blades | Galvanized + acoustic infill | EN 13501 |
| Sand-trap louver | Module ~600 mm high stages | Aluminium / GI | AMCA 500-L |
Frequently Asked Questions
What free area do your louvers provide?
Typically 35–55% depending on blade profile and pitch; performance/aerofoil louvers give higher free area and lower pressure drop.
Which louver resists rain best?
Drainable-blade and storm-proof louvers tested to AMCA 500-L / BS EN 13030 give the best water rejection for facade and high-rain intakes.
Do louvers come with bird or insect mesh?
Yes — aluminium or stainless bird screen and finer insect mesh can be fitted to the rear of the frame.
What about dusty or desert sites?
Sand-trap louvers use two-stage inertial blades to drop out airborne sand and dust before air enters the system.
Which materials are available?
Extruded aluminium 6063 (standard), powder-coated GI/CRCA, and stainless 304/316 for coastal or corrosive environments.
Scope of Work
The louvers 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