UNSPSC 31411803: Capsule diaphragm seal

A type seal that is internally sealed, with the fill fluid within the capsule in the upper housing

UNSPSC 31411803 Capsule diaphragm seal is a Commodity code covering specialized pump sealing and diaphragm products used in industrial and municipal water, wastewater, and infrastructure applications. State and local governments procure these seals primarily as replacement and repair components for authorized pump systems, often bundled with repair services and parts kits. The issuing bodies on record include municipalities (City of Port Orange, Florida) and state transportation departments (Maine Department of Transportation), along with cooperative purchasing vehicles serving multi-state public entities. These seals represent a niche procurement category with limited recent activity, typically driven by specific equipment compatibility requirements and original equipment manufacturer (OEM) authorization constraints that often narrow the vendor field substantially.

Recent solicitation activity shows geographic concentration in Florida and Maine, with cooperative purchasing reaching across multiple states. The City of Port Orange, Florida issued a notice of intent to award a sole-source procurement (SS2620CW, due September 16, 2026) for NOV Chemineer Moyno pump products and repair services valued at approximately $500,000 annually, identifying Carl Eric Johnson, Inc. as the sole authorized dealer serving Florida, Alabama, Georgia, and Tennessee. The State of Maine Department of Transportation, through the Office of State Procurement Services, issued an RFQ (17A260427-275, due June 1, 2026) for bridge joint seals and related materials—a Master Agreement covering 76 line items of compression seals, foam seals, gland seals, and supporting adhesives and lubricants for delivery to nine MaineDOT locations across Maine, with an initial contract period through June 30, 2027 and four optional one-year extensions. Both solicitations reflect the code's application to capital and infrastructure maintenance programs where OEM specification and authorized-dealer arrangements typically govern vendor eligibility.