

Our product can be locked in place, which means it won’t rattle around or worse still bounce out. VB2606SS-35 6″ VB RISER LESS LID CL-35 W/SET SCREWSĪccording to Charlie Kyle, SIGMA’s Midwest Regional Manager, who devised the product: “Most drop-in risers are not secured in place, they simply sit in the ground.


The Valve Box Riser with Set Screws is available in a 6-inch diameter and a wide range of heights from 1” to 6”. This feature is particularly useful when resurfacing roads, sidewalks or other surfaces and a change in elevation is required. The inclusion of the set screws ensures that the riser can easily be dropped in place and tightly secured when an existing valve box riser needs to be replaced. The new Class 35B Grey Iron Valve Box Riser meets Colorado’s High Spec Class 35B Standard, and comes preassembled as a single component with stainless steel set screws. SIGMA has introduced a new Valve Box Riser with Set Screws to its Municipal Construction Castings (MCC) product line.
