90 Degree Elbow, Slip x Slip PVC Schedule 80 4" (806-040)

The 4" PVC Schedule 80 90 Degree Elbow Slip x Slip (806-040) delivers a full quarter-turn directional change in high-pressure PVC piping systems where Schedule 80 construction is required by specification, system pressure demands, or the chemical and mechanical exposure conditions of the application. Manufactured from rigid gray PVC conforming to ASTM D1784 Cell Class 12454, this elbow is engineered to the dimensional and pressure standards expected in industrial, municipal, and commercial Schedule 80 pressure piping.

Both ends accept standard Schedule 40 or Schedule 80 PVC pipe via solvent cement, as both schedules share the same outside diameter for any given nominal size. Once solvent-welded, each joint forms a permanent, pressure-rated connection that is integral to the pipe wall and fully capable of handling the system's rated pressure and chemical service conditions. The slip-to-slip configuration makes installation straightforward in standard PVC pressure piping runs where solvent weld is the connection method throughout.

At 4", this is a large-format fitting suited to main distribution headers, pump station discharge runs, treatment plant process piping, and large-diameter industrial fluid handling systems. The 90-degree turn geometry is the most commonly specified elbow angle in PVC pressure systems, accommodating the majority of layout changes, wall penetrations, equipment alignments, and riser-to-horizontal transitions encountered in commercial and industrial construction.

Schedule 80 construction provides meaningfully greater wall thickness and pressure capacity compared to Schedule 40, making this elbow the correct choice when the surrounding system is built to Schedule 80 specifications, when higher working pressures are present, or when the fitting is exposed to mechanical abuse, UV, or chemical contact conditions that warrant the additional wall thickness. Gray PVC delivers broad chemical resistance to acids, bases, salts, and a wide range of industrial process fluids. For service temperatures above 140°F, refer to CPVC Schedule 80 equivalents.

Specifications:

Industries & Applications:

• Water & Wastewater Treatment — Directional changes on pump discharge headers, chemical feed mains, and treatment plant process piping where Schedule 80 is specified for pressure or chemical service
• Chemical Processing — 90-degree turns on chemical transfer and distribution mains where gray PVC's broad chemical resistance and Schedule 80 wall thickness are required
• Industrial Manufacturing — Process fluid piping layout changes at equipment connections, wall penetrations, and riser transitions in Schedule 80 industrial systems
• Irrigation & Agriculture — High-pressure mainline elbows on pump station discharge runs and large-diameter commercial irrigation headers where Schedule 80 is specified
• Municipal Infrastructure — Lift station, water distribution, and reclaimed water system directional changes on 4" Schedule 80 PVC pressure mains
• Fire Protection & Site Utilities — PVC-permitted large-diameter utility and suppression system layout changes requiring Schedule 80 pressure ratings
• Aquaculture & Aquatics — Recirculating system supply and return main directional transitions where Schedule 80 construction is required for system pressure or chemical compatibility