ACO KlassikDrain Type 447D Longitudinal Stainless Steel Grate (ADA) - 1 Meter

Product Details: ACO KlassikDrain Type 447D Longitudinal Stainless Steel Grate (ADA) - 1 Meter

ACO KlassikDrain stainless steel grates bring Grade 304 stainless construction to the K100/KS100 trench drain line - ACO's 4" (100 mm) internal width polymer concrete channel system for commercial and industrial stormwater drainage. Stainless steel is the specification of choice where increased aesthetics or corrosion resistance is required, making these grates the natural companion to KS100 stainless edge-rail channel runs. Every grate in the range shares a single part number across both channel rails, so the same grate drops into K100 galvanized-rail and KS100 stainless-rail sections alike.

The stainless family spans perforated, slotted, longitudinal (wedgewire), and mesh designs in 39.37" (1 m) and 19.69" (0.5 m) lengths, with EN 1433 load ratings from pedestrian-duty Class A to heavy-duty Class E depending on the type selected. Boltless DrainLok or QuickLok locking secures each grate to the channel edge rail, keeping installation fast and leaving uninterrupted access to the trench once the grates are removed for maintenance.

The Type 447D (ACO part number 142215) is the 1 meter longitudinal grate of the stainless family — ACO's Stainless Wedgewire Heelsafe Anti-Slip design — formed from 16 gauge Grade 304 stainless steel and rated to EN 1433 Load Class B at 28,101 lbs (387-580 PSI) for K100, KS100, and H100K-8 runs. Its longitudinal wedgewire slots measure 1.61" x 0.24" (41 x 6 mm) and deliver 46.9 square inches (305 sq cm) of intake area per half meter of grate — 93.8 square inches over the full 1 meter length — making it the highest-intake steel grate in the 100 series. The grate is ADA Compliant, Bicycle Safe, Heel-Resistant, Heel-Safe, Anti-Slip, and LEED rated, a natural pick where barrier-free access and slip resistance meet serious hydraulic demand. The factory-fitted DrainLok locking device clips into the channel edge rail, and its anti-shunt mechanism restricts unwanted grate movement — boltless, barless, and with no locking bar to purchase. At 8.0 lbs, the grate unlocks and lifts out easily whenever the trench needs to be inspected or cleaned.

Quick Look

• Material: 16 Gauge Grade 304 Stainless Steel
• One part number serves both channel rails: KlassikDrain grates are shared between K100 (galvanized edge rail) and KS100 (stainless edge rail) channels
• For use with ACO Drain K100, KS100, and H100K-8 channels — 4" (100 mm) internal width
• Pairs naturally with the KS100 stainless steel edge-rail channel, specified where increased aesthetics or corrosion resistance is required
• ACO Part Number: 142215 (Type 447D)
• Grate Length: 39.37" (1000 mm / 1 meter)
• Overall Width: 4.85" (123 mm)
• Longitudinal wedgewire slots: 1.61" x 0.24" (41 x 6 mm) — Stainless Wedgewire Heelsafe Anti-Slip design
• Intake Area: 46.9 sq. in. (305 sq. cm) per half meter of grate; 93.8 sq. in. per 1 meter grate — the highest-intake steel grate in the 100 series
• Weight: 8.0 lbs
• Load Rating: EN 1433 Load Class B — 28,101 lbs (387-580 PSI)
• The grate fitted determines the realized load class of the installed channel system — the stainless range spans Class A through Class E
• ADA Compliant, Bicycle Safe, Heel-Resistant, Heel-Safe, and Anti-Slip
• LEED rated to support sustainable building credits
• Boltless grate locking: the "D" in Type 447D stands for the DrainLok barless system — factory-fitted, clips into the channel edge rail, no locking bar needed
• DrainLok anti-shunt mechanism restricts unwanted grate movement once the grate is clipped into the edge rail
• Used for capturing and redirecting excess stormwater to safe locations
• Removing the grate leaves uninterrupted access to the trench for maintenance

Shop the full ACO KlassikDrain K100 Trench Drain system

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