Made of ductile iron instead of grey iron, this new grate is stronger than ever. Load capacity has increased from Load Class 15.8 to Load Class 31.2. This clean bicycle safe design gives a fresh new look to surface drainage technology. Best of all, these major design improvements come without an increase in cost. Minimum failure load is used in the formula above.
Test assumes a line load with a minimum of contact area.
Actual applications may involve a larger load contact patch, thereby increasing load carrying capacity.