GB1199786167325109990
THE PRODUCT IS A RELIEF MANHOLE COVER. IT IS A FABRICATED CASTING, MADE OF CAST IRON. IT IS TO PROVIDE ACCESS FOR MAINTAINENCE AND CLEANING TO LOW PRESSURE STORAGE TANKS. THE MANHOLE IS SECURED BY A TRANSVERSE BEAM THAT IS ATTACHED TO THE CENTRE OF THE COVER. THIS ENSURES EVEN DISTRIBUTION OF THE RETAINING FORCE TO FORM A GAS TIGHT FITTING.