It is square in shape, It presents an inside groove to host an EPDM gasket. Its corners present the specific seats for the fixing of the covers, so that to obtain a waterproof sealing. Externally, the outside border is flanged to option its hold in the cement mortar and the insertion of anchoring devices. 

COVER 

It is square in shape, it can be inserted in the frame in one position. ensures a high stability due to a depth of insertion over 50 mm, the EPDM gasket inserted in the throat, which is located in the supporting area, and the locking system with stainless steel screws. The opening process is obtained through the insertion of specific handles in the blind holes of the surface. The top surface is designed to be non-skid to allow the complete flow of water and avoid the creation of ice.

ADVANTAGES OF ‘DUCTILE IRON’ MANHOLE COVERS, FRAMES & GRATINGS:

• High Strength, results in More Life and Durability
• Available with Elegant Checkers Design, offers Good Anti- skid Grip and Nice Appearance.
• Due to it’s Hinge type Design, Chances of Theft are Less.
• Suitable for Heavy Traffic Loading and at High speed.
• Chances of Accidents are almost Reduced, as it Does Not Break Suddenly.
• Due to High Strength, ‘Ductile Iron’ Minimises the Risk of Failure during normal uses and offers Resistance to Impact.
• Ductile Iron’s High Strength to Weight ratio allows the manufacturers to relatively manufacture Light Weight Castings, offering up to 50% Weight Savings over Grey Iron Castings, subsequently Saving in Cost Per Piece.
• Lightweight Castings offer Cost Benefits, from Transportation to Installation, providing Ease of Handling and Maintenance during service.