UNSPSC 40141666: Diaphragm control valve

A diaphragm valve is a type of valve that uses a flexible diaphragm to regulate the flow of fluid. The diaphragm valve is also known as a membrane valve.

UNSPSC 40141666 Diaphragm control valve (Commodity) describes water distribution and treatment valve products that state and local water utilities procure for infrastructure maintenance, system operations, and facility upgrades. Recent state and local opportunities show that this code encompasses ball valves, butterfly valves, quick insertion valves, detector check valves, resilient gate valves, tapping sleeves, backflow assemblies, and slide gates — the full range of control and isolation devices used in pressurized and gravity-fed water systems. Issuing bodies are predominantly county water departments and municipal water utilities. Gwinnett County (Georgia) appears repeatedly as a major repeat buyer, with multiple bids posted for filter plant and distribution infrastructure valve replacements; DeKalb County (Georgia), the City of Marietta (Georgia), and Palm Beach County (Florida) have also solicited recently. Procurement vehicles include informal written quotations (IWQ), invitations to bid (ITB), and competitive sealed bids, with contract structures ranging from one-time purchases to multi-year annual supply agreements.

Recent opportunities are concentrated in Georgia and Florida. The County of DeKalb issued an ITB for quick insertion valves under a three-year multiyear contract (response due August 27, 2026); Gwinnett County Board of Commissioners, Department of Water Resources, solicited butterfly valves for Lanier and Shoal Creek Filter Plants under sealed bid BL126-26 (response due September 23, 2026, with a virtual pre-bid conference on September 2, 2026 and questions due September 10, 2026); the City of Marietta posted an annual contract bid for water service saddles, couplings, clamps, and ball valves (BL121-26, response due September 22, 2026); and Palm Beach County requested quotations for a Reduced Pressure Principle Backflow Assembly, OEM Wilkins only, with a local small-business preference (five percent adjustment for local vendors, ten percent for certified small businesses; response due August 25, 2026). Alameda County Water District (California) posted an IFB for detector check valves (response due July 14, 2026). Responses typically require unit and total pricing, three project references, compliance certifications, and F.O.B. Destination freight prepaid to multiple delivery locations.