ACO KlassikDrain Type 493Q Slotted Stainless Steel Grate - 0.5 Meter

Product Details: ACO KlassikDrain Type 493Q Slotted Stainless Steel Grate - 0.5 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 493Q (ACO part number 31651) is the half-meter slotted grate at the heavy-duty end of that stainless range: fabricated from 16 gauge Grade 304 stainless steel and rated to EN 1433 Load Class E at 134,885 lbs (1,856-2,785 PSI). Its slotted surface pairs 1.75" x 0.38" and 1.17" x 0.38" openings to deliver 17.6 square inches of intake area per half-meter grate, and the pattern is Bicycle Safe and Anti-Slip, with LEED credentials to support sustainable building credits. The "Q" in the type code stands for ACO’s patented QuickLok boltless locking system: the grate stud push-fits into the stainless steel spring clip of a QuickLok locking bar — channel bar 02899, Series 900 basin bar 98717; each is sold separately. At 6.8 lbs, the grate unlocks and lifts out — along with the locking bar — whenever the trench needs to be inspected or cleaned.

Quick Look

• Material: 16 Gauge Grade 304 Stainless Steel
• For use with ACO Drain K100, KS100, or H100K-8 channels — 100-series grates are shared across edge-rail materials, so one part number serves both galvanized-rail (K100) and stainless-rail (KS100) channels
• Pairs naturally with the KS100 stainless steel edge-rail channel, specified where increased aesthetics or corrosion resistance is required
• Overall Width: 4.84" (123 mm), sized for the 4" (100 mm) internal width KlassikDrain channel
• Grate Length: 19.69" (500 mm / 0.5 meter)
• Slotted surface design — Slot Openings: 1.75" x 0.38" and 1.17" x 0.38"
• Intake Area: 17.6 sq. in. per half-meter grate
• Weight: 6.8 lbs
• Load Rating: EN 1433 Load Class E — 134,885 lbs (1,856-2,785 PSI), and the grate fitted determines the realized load class of the installed channel system
• Boltless grate locking: the "Q" in Type 493Q stands for the patented QuickLok system — the grate stud push-fits into the stainless steel spring clip of a QuickLok locking bar, sold separately
• QuickLok locking bar options: channel bar 02899, Series 900 basin bar 98717 — each sold separately
• Grates lift out — along with the QuickLok bar — for uninterrupted access to the trench during maintenance
• Used for capturing and redirecting excess stormwater to safe locations
• Bicycle Safe and Anti-Slip
• LEED credentials — supports sustainable building credits
• ACO Part Number: 31651 (Type 493Q)
• Pallet Quantity: 400

Shop the full ACO KlassikDrain K100 Trench Drain system

Additional Resources