Each region has its own heavy castings sheet, in Excel and PDF. Light castings are on regional sheets and one national list. All are dated March 15, 2024.
Heavy castings
Manhole frames and covers, grates, inlets, cleanouts and trench grating. One sheet per region, in the table below.
Valve boxes, service boxes, Arch and Minneapolis pattern boxes, roadway boxes and their parts, on one list. Meter box covers are on the regional light castings sheets.
The city or utility sets the standard. The distributor supplies the casting from the regional price sheet. For anything that is not on it, your regional team can quote a custom casting.
Cast lettering on a SIGMA meter box lid.
5 U.S. regions
Price sheets for the Northeast, Midwest, Southeast, Southwest and Western regions.
ASTM and AASHTO
Standards SIGMA works to, with federal and state department specifications, Canada's BNQ standard and the customer's own requirements.
PE certification
By an outside professional engineer, on request.
From SIGMA's November 2024 article on municipal castings and its regional price sheets (March 2024).
Questions about municipal castings.
Short answers. Your regional team has the rest.
Iron castings for streets and utility lines. Heavy castings include manhole rings and covers, frames and grates and curb inlets. Light castings include valve boxes, curb boxes, meter boxes, risers and lids.
Castings follow the local standard, often down to the pattern and the cast lettering, so SIGMA publishes them by region: a heavy castings sheet for each region, and light castings on regional sheets and one national list. Find yours under Regional price sheets, or ask your regional team.
Send the standard detail or a drawing to your regional team. SIGMA takes custom orders made to the customer's specification. A new casting goes through a drawing, a sample and an approval step before production.
SIGMA castings are made for applications such as non-traffic, light, medium and heavy-duty loads. SIGMA works to ASTM and AASHTO standards, federal and state department specifications, Canada's BNQ standard and the customer's own requirements, and can have castings certified by an outside professional engineer on request. Check the rating your spec calls for with your regional team.
Each casting carries a cast ID, or heat number, that identifies the location, the foundry, the manufacture date and the production batch. SIGMA engineers or inspectors at the foundries audit, inspect and test before shipping, and SIGMA checks the foundries' material test reports with its own incoming inspection.
SIGMA sells through waterworks distributors, so your price comes from your distributor. Ask your distributor or your regional team about pricing.
Have the spec in hand?
Your regional team can match it to the right casting.
