Bushing, Spigot x Slip (Flush Style) PVC Schedule 80 4" x 1-1/2" (837-419)

The 4" x 1-1/2" PVC Schedule 80 Flush Bushing (Spigot x Slip) is a compact, pressure-rated reducer designed for transitioning from a 4" Schedule 80 piping run down to a 1-1/2" line. The spigot end seats directly into any standard Schedule 80 socket fitting, while the slip socket accepts 1-1/2" PVC pipe — creating a clean, flush reduction without the added length or bulk of a hex bushing.

Manufactured to ASTM D2464 and listed under NSF/ANSI 14, this fitting is constructed from dark gray Schedule 80 PVC compound, delivering greater wall thickness and higher pressure ratings than Schedule 40 equivalents. The result is a fitting well-suited for industrial process piping, chemical distribution, and commercial mechanical systems where pressure integrity and chemical resistance are primary concerns.

Specifications:

Industries & Applications:

• Chemical Processing — Handles a wide range of corrosive media; well-suited for reducing line size within chemical feed, dosing, and transfer systems
• Industrial Manufacturing — Applied in process piping systems requiring a reliable pressure-rated transition between larger supply lines and smaller branch or equipment connections
• Municipal Water & Wastewater — Used in pump stations, treatment facilities, and distribution infrastructure where Schedule 80 fittings are specified
• Commercial Plumbing — Appropriate for high-pressure domestic water systems, mechanical rooms, and building service applications
• Irrigation & Agricultural — Connects large-diameter mainlines to 1-1/2" lateral runs in commercial and agricultural irrigation systems
• Aquaculture & Water Treatment — Chemical resistance and pressure performance make this bushing effective in recirculating systems and multi-stage filtration configurations