ISO 9001
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Product Code: CEI-DG / DG-AL
Door Grille
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Transfer air grilles mounted in doors for balanced pressure between rooms. Fixed or removable core designs. Available in steel or aluminium to match door specifications.
Frame Material
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ISO 9001:2015SMACNADW144
Description
Product Description
Castle Door Grilles provide air transfer between rooms through door panels — essential for maintaining HVAC airflow circulation in partitioned spaces. Constructed from extruded aluminium with inverted V-shaped blades that ensure visual privacy while allowing free air movement. No screws required — the frame clips directly into a cut-out in the door panel for clean installation.
Visual Privacy
Inverted V-shaped blades block line of sight while allowing unrestricted airflow between rooms.
Screw-Free Install
Spring clips or press-fit frame — simply cut the door and snap the grille into place for a clean finish.
Both-Sides Aesthetic
Identical appearance on both sides of the door — no visible fixings or ugly back side.
Corrosion Resistant
Aluminium 6063-T5 with anodized or powder coat finish — suitable for humid and coastal environments.
ISO 9001:2015 Certified
Quality management system certified by IGC, covering all stages from raw material to final delivery.
SMACNA & DW144 Compliant
Manufactured to the latest edition of SMACNA HVAC Duct Construction Standards and DW144.
Custom Sizes Available
Non-standard dimensions manufactured to project specifications with competitive lead times.
Approved by Leading Consultants
Accepted by Dar Al-Handasa, ECG, SYSTRA, Khatib & Alami and 25+ major engineering consultants.
Specifications
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frame & Blade Material | Extruded aluminium alloy 6063-T5 | — |
| Blade Type | Inverted V-shaped — non-vision privacy blades | — |
| Blade Spacing | 16mm — 20mm centre to centre | mm |
| Frame Thickness | 1.0 — 1.2mm | mm |
| Standard Sizes | 150×150 to 600×600 mm | mm |
| Custom Sizes | Any size up to 1200×600 mm | mm |
| Mounting | Press-fit into door cut-out (no screws) | — |
| Door Thickness | 35 — 50mm standard doors | mm |
| Finish | Natural anodized / White powder coat / RAL colours | — |
| Free Area | Approx. 50 — 60% | % |
Applications
Fields of Application
Hotel guest room doors
Office partition doors
Hospital and healthcare doors
Residential apartment doors
Bathroom and washroom ventilation
Plant room doors
Quality Assurance
Tests & Certificates
Duct Test
Rigorous leakage and pressure testing to SMACNA and DW144 standards.
Duct Test 01
Duct Test 02
Duct Test 03
Air Tests
Air velocity and distribution testing.
Air Test 01
Air Test 02
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