15-W-4 Galvanized Grating Trench Cover For Municipal Engineering
15 - w - 4 Galvanized Trench Drain Grate Covers , For Municipal Engineering
Trench Drain Grate Covers Description:
This steel grid/grating is manufactured by cross plain steel strips with the joint spot welded, 2mm thickness of steel strips as bearing and cross bars, then it is hot dip Zinc galvanized. This method provides a positive fusion of cross and bearing bars. The most popular is the 33*33 spacing and 11*44 spacing; Different bearing bar thickness can be specified, the most common 1.8mm, 2.0mm with 30mm width and 10mm width. Different thickness is offered to accommodate any load rating requirements. Universally used in most general industrial plants as well as commercial buildings; it has a wide range of uses such as walkways, platforms, safety barriers, ventilation grates, and drainage covers.
Trench Drain Grate Covers Quality Standards:
| No. | Item | Detailed Description |
| 1 | Bearing Bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc |
| US standard: 1' ' x3/16' ' , 1 1/4' ' x3/16' ' , 1 1/2' ' x3/16' ' , 1' ' x1/4' ' , 1 1/4' ' x1/4' ' , 1 1/2' ' x1/4' ' , 1' ' x1/8' ' , 1 1/4' ' x1/8' ' , 1 1/2' ' x1/8' ' etc | ||
| 2 | Bearing Pitch | 12.5, 15, 20, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc |
| US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc | ||
| 3 | Cross Bar Pitch | 38.1, 40 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc |
| 4 | Steel Grade | ASTM A36, A1011, A569, Q235, S235JR, S275JR, SS304, Mild steel & Low carbon steel, etc |
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating |
Trench Drain Grate Covers Picture:
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