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Security lock hardened 60 HRC, for cover with screw cap (SD7/SD7.R/SD50) - 40 mm
Compatible with our ladders
For retrofitting the opening option from below for manhole covers with self-closing lock
Clearance to wall = 500 - 750 mm (without mounting material)
For mounting the BKA ventilation chimney
Clearance to wall = 100 mm (without mounting material)
For installation in manhole covers with vapour hood and ventilation chimneys
Self-locking lock + screw lock (internal triangle)
Safety spring for support with double-stroke gas spring