Field Notes on a Modern gully grate: NCH 2080 Lid F/12mm Two Notches For Concreting

I’ve spent a fair amount of time peering into stormwater hardware (not the most glamorous beat, I know), and this one’s worth a closer look. The NCH 2080 Lid F/12mm Two Notches For Concreting is a circular steel unit designed for curbside drainage where cars roll by all day long, yet heavy trucks aren’t the norm. In simple terms: it’s a pragmatic, hardworking gully grate for Class C250 duty.

What it is, and where it fits

This unit is built with Ø12 mm construction bars, compliant with NCH2080, and engineered for concreting into the surround—so it becomes part of the slab, not an afterthought. It meets UNI EN 124 Class C250 (test force 250 kN), which, in practical use, points to areas like gutter lines along streets, small service roads, and parking aprons near the curb. Many customers say the installation feels straightforward—formwork, cover placement, pour—and the two notches help with handling during site work.

Quick spec snapshot

Process and testing, briefly

Materials: steel bars sized to Ø12 mm; fabrication typically uses jigged welding to maintain geometry. Methods: pre-fit check, weld, deburr, verify notch alignment, surface clean. Testing: dimensional checks against drawings, load verification to EN 124 C250 (250 kN static test), visual inspection for weld continuity. Certifications usually include mill certs; third-party EN 124 witness testing can be arranged—ask early, it streamlines approvals. I guess the key here is consistency: repeatable welds, consistent bar spacing, and clean seating for concreting in.

Where it’s used (and why)

• Municipal curb inlets along urban streets (C250 sweet spot).
• Retail parks and light-traffic access roads.
• Industrial campuses where heavy forklifts stay off the curb line.
• Landscape architects specify it near permeable pavements to control edges.

Advantages? Honestly—speed. Concreting-in makes the gully grate feel monolithic. Maintenance crews like the reliable seat and the two notches for safer lifting. One facilities manager told me it “just sits right” after the pour—no rattles, no rocking.

Vendor options, at a glance

Case study: curb retrofit, mixed traffic

A municipal crew replaced old welded covers on a commercial street with the steel-bar gully grate you see here. After core-out and new pour, they reported clean seating and better capture at the curb edge. Six months in—no looseness, and silt control screens clipped underneath without fuss. Small detail, big impact.

Buying notes

• Confirm C250 is right; for bus lanes or heavy trucks, consider D400.
• Ask for EN 124 load test documentation and weld inspection records.
• Consider hot-dip galvanizing or protective finish if de-icing salts are common.
• Plan lifting points; those two notches matter for safe maintenance.

References

1. EN 124-2:2015, Gully tops and manhole tops for vehicular and pedestrian areas. BSI Shop: https://shop.bsigroup.com/
2. CIRIA C753, The SuDS Manual (2015) – drainage design guidance: https://www.ciria.org/
3. INN (Chile), NCh standards catalogue (NCH 2080 reference): https://www.inn.cl/