UNSPSC 31411802: Clamped diaphragm seal

A type seal clamped between the upper and lower housing allowing it to be removed and replaced easily

UNSPSC 31411802 Clamped diaphragm seal, a Commodity code, represents specialized industrial sealing components that state and local governments procure primarily for infrastructure maintenance and equipment repair. State and local activity under this code centers on replacement seals for pump systems, fluid handling equipment, and mechanical assemblies used across transportation departments, public utilities, and facility operations. The issuing bodies are mostly state departments of transportation and individual municipalities managing water systems, wastewater operations, and vehicle fleets. Procurement patterns show sparse but targeted solicitation activity driven by preventive maintenance schedules and equipment failure response rather than routine consumption.

Recent activity confirms this narrow application. The State of Maine Department of Transportation issued RFQ 17A 260427-275 in May 2026 to establish a master agreement for bridge joint seals and related materials—76 line items spanning compression seals, silicone foam seals, and gland seals in multiple sizes, with delivery to nine MDOT regional locations and an initial contract term through June 2027 with four optional one-year extensions. The City of Port Orange, Florida posted a Notice of Intent to Award sole-source procurement (SS2620CW, due September 16, 2026) for NOV Chemineer Moyno pump products and repair services, estimated at $500,000 annually, with Carl Eric Johnson, Inc. identified as the only authorized dealer in Florida, Alabama, Georgia, and Tennessee. These two opportunities represent the bulk of identifiable recent state and local activity under the code—Maine and Florida show the most current demand, though activity remains episodic rather than recurring. No cooperative purchasing agreements or multi-jurisdiction RFPs have targeted clamped diaphragm seals specifically; the Maine RFQ represents the largest coordinated effort on record, covering nine locations but remaining a single-state procurement.