UNSPSC 31121223: Ductile iron sand machined casting assembly

Assembly of ductile iron objects cast from sand molds

UNSPSC 31121223 Ductile iron sand machined casting assembly is a Commodity code capturing state and local procurement of large-diameter ductile iron pipe components, fittings, repair parts, and related assemblies for water utility infrastructure. Recent solicitations show water departments and utility authorities purchasing 30-inch diameter ductile iron pipe sections, gland retainers, tapping sleeves, saddles, spools, and pipe nipples with Class 250 pressure ratings and specific lining specifications (cement lining, polyethylene dip coating, sealcoat). Issuing bodies include county water resource departments, municipal water utilities departments, and city departments of public works. Gwinnett County, Georgia appears as a repeat buyer, posting multiple informal written quotation (IWQ) solicitations for large-diameter ductile components in recent months; the City of Dallas and City of Southlake also solicited under this code. Most solicitations are informal quotation requests (IWQ) with tight turnaround — typically five to ten business days from posting to response deadline — and award to the lowest responsive and responsible vendor based on unit pricing that includes all charges and delivery costs FOB Destination Prepaid and Allowed.

Recent activity concentrates in Georgia and Texas. Gwinnett County Department of Financial Services issued at least five solicitations between May and September 2026 for large-diameter ductile parts, repair parts, and spools (IWQ 138607, IWQ 137554, IWQ 135620, IWQ 131138, IWQ 130376), all due within one to two weeks of posting and requiring delivery to the Department of Water Resources Central Facility at Lawrenceville, Georgia. The City of Dallas issued a five-year ID/IQ master agreement procurement (BG2600030409) for ductile iron pipe supply to its Water Utilities department with a June 12, 2026 bid deadline, and the City of Southlake (Texas) solicited utility parts and supplies on a multi-vendor award basis (RFP2601B400CH260010) due August 21, 2026. Bidders must acknowledge addenda, provide three project references of similar scope, submit non-collusion certifications, comply with local occupational tax and worker verification requirements, and avoid appearing on the county's ineligible source list.