Flange (Solid Style) FPT PVC Schedule 80 2-1/2" (852-025)

The 2-1/2" PVC Schedule 80 Solid Style Flange (Part No. 852-025) is a pressure-rated, gray-body flange fitting that integrates a fixed, one-piece flanged face with a female pipe thread (FPT) connection, providing a bolted, demountable joint at a threaded interface point on Schedule 80 PVC piping systems. As a solid style flange, the ring and hub are molded as a single unified body — in contrast to a loose ring flange where the outer ring rotates freely around the hub — delivering a rigid, structurally consolidated profile well-suited to permanent installations where bolt hole alignment is established at assembly and pipe rotation post-installation is neither required nor practical.

The FPT (female pipe thread) connection accepts a male-threaded pipe end, nipple, or fitting on the pipe side, making this flange the correct specification wherever the piping system arrives at a flanged connection point via a threaded rather than solvent-cemented pipe run. This configuration is frequently encountered in systems that combine threaded Schedule 80 PVC with flanged equipment interfaces, in retrofit installations where an existing threaded pipe termination must be converted to a flanged connection, and in any application where field adjustability or periodic disconnection on the threaded side is an operational preference.

At 2-1/2", this fitting occupies a size that bridges the more common 2" and 3" nominal diameters — a specification that appears in mid-scale industrial loops, commercial mechanical rooms, and municipal infrastructure where flow calculations or equipment port sizing land between the standard offerings. The solid style flanged face mates to any ANSI/ASME B16.5 Class 150 mating flange, including those on pumps, valves, strainers, meters, and process equipment, creating a fully demountable bolted joint for maintenance, inspection, and component replacement without disturbing the upstream threaded pipe connection. A full-face flat gasket between the flanged faces completes the seal.

Manufactured from Type I, Grade I PVC compound, this fitting conforms to ASTM D2467 dimensional standards and delivers the wall thickness and pressure ratings that define Schedule 80 over Schedule 40. Thread form conforms to ANSI B1.20.1 NPT.

Specifications:

Industries & Applications:

• Industrial & Chemical Processing — Threaded equipment tie-ins and pump connections on chemical-resistant Schedule 80 PVC systems where a bolted flanged interface is required and the pipe arrives via a threaded connection
• Municipal Water & Wastewater — Flanged connections to valves, meters, and treatment equipment on 2-1/2" mains where the pipe terminates in a male-threaded configuration requiring a flanged transition
• Commercial Plumbing — Mechanical room equipment connections, system isolation points, and service access flanges on threaded Schedule 80 infrastructure requiring a standard Class 150 flanged interface
• Irrigation — Pump station connections and mainline equipment interfaces on 2-1/2" threaded PVC systems where a bolted flanged joint is required at pump inlets, valve bodies, or metering equipment
• Mining & Oil Field — Corrosive fluid handling systems requiring a durable, chemical-resistant flanged connection at threaded equipment interfaces on 2-1/2" pressure lines
• Power Generation & Utilities — Cooling water and process fluid systems where a threaded PVC entry into a flanged connection provides corrosion resistance at equipment tie-ins between the standard 2" and 3" sizes
• Aquaculture & Water Treatment — Filter housing, pump, and chemical dosing equipment connections requiring a serviceable flanged joint on 2-1/2" threaded PVC systems