Both covers of the double triangular grating feature I beams that interlock to provide high rigidity while still allowing the grating to hinge as one unit.
Both covers of the double triangular grating feature I beams that interlock to provide high rigidity while still allowing the grating to hinge as one unit.
Frame gussets are supports which reinforce the corners where the frame sections meet, distributing stress evenly, preventing damage to the frame or the access cover.
Frame gussets are supports which reinforce the corners where the frame sections meet, distributing stress evenly, preventing damage to the frame or the access cover.
Indexed corners ensure correct orientation first time, every time.
Indexed corners ensure correct orientation first time, every time.
Keyway lifting points are provided on the frame for safe handling.
Keyway lifting points are provided on the frame for safe handling.
Holes in the frame flange where mortar can pass between the underside and top side, creating an interlock, providing greater strength.
Holes in the frame flange where mortar can pass between the underside and top side, creating an interlock, providing greater strength.
The covers feature a universal beam (also known as an I beam) providing significant improvements to rigidity, reducing seat wear for an enhanced service life.
The covers feature a universal beam (also known as an I beam) providing significant improvements to rigidity, reducing seat wear for an enhanced service life.