Load Class Ratings
To determine the safe load-carrying capacity of industrial floor drains, manufacturers adhere to industry-standard specifications, including ASME A112.6.3/CSA B79.3 and DIN EN 1433. These standards are the most common in the industry and are used to classify a drain’s load rating through laboratory-based static testing.
Understanding these classifications is crucial for selecting the appropriate drain for heavy-duty applications and for managing wastewater effectively. The various load classifications for these standards are detailed in the table below.
Understanding Load Classifcations
| ASME A112.6.3 / CSA B79.3 | DIN EN 1433 |
|---|---|
| LD – Light Duty Up to 441 lb (200 kg) |
Load Class A Up to 3,372 lb (15 kN) |
| MD – Medium Duty Up to 1,984 lb (900 kg) |
Load Class B Up to 28,101 lb (125 kN) |
| HD – Heavy Duty Up to 3,638 lb (1,650 kg) |
Load Class C Up to 56,202 lb (250 kN) |
| XHD – Extra Heavy Duty Up to 7,500 lb (3,402 kg) |
Load Class D Up to 89,923 lb (400 kN) |
| SD – Special Duty Up to 10,000 lb (4,536 kg) |
Load Class E Up to 134,885 lb (600 kN) |
| — | Load Class F Up to 202,328 lb (900 kN) |
Load ratings are specified for all Slot Drain Systems within the applicable product data sheet.
