What is the required thickness of mortar on flanges that covers the nuts and bolts?

The required thickness of mortar on flanges that covers the nuts and bolts is typically specified to be 2 inches thick as this thickness provides adequate protection and support for the flange connection. This mortar layer ensures that there is enough coverage to distribute stress evenly across the nut and bolt assembly and prevents moisture ingress, which could lead to corrosion and failure of the fastening system.

Having a consistent and sufficient thickness also helps in maintaining alignment and provides a seal, which is crucial in waterworks applications where pressure and density are significant considerations. Proper mortar application is important for not only sealing but also for structural integrity, which is vital in any waterworks system. Thus, the choice of 2 inches reflects industry standards aimed at ensuring durability and reliability in operations.