90 Degree Elbow, FPT x FPT PVC Schedule 80 3/4" (808-007)

This 3/4" Schedule 80 PVC FPT × FPT 90 Degree Elbow provides an all-threaded right-angle directional change in a fully threaded Schedule 80 PVC pressure piping system. Both female NPT threaded ends receive standard 3/4" male-threaded pipe, nipples, or MPT fittings, routing the threaded run through a 90° turn without solvent cement, primer, or cure time at the elbow position.

Two parallel distinctions define where the 808-007 belongs in a system layout. The first is connection type. Within the Schedule 80 90° elbow family at 3/4", the 806-series all-socket elbow serves fully solvent-welded PVC pipe systems where both sides of the right-angle turn are cemented pipe ends; the 807-series mixed elbow bridges a solvent-welded inlet to a female-threaded outlet at the turn; and the 808-007 serves fully threaded assemblies where both sides of the turn receive male-threaded nipples or MPT-terminated fittings without solvent cement at either connection. When both connections at the directional change point are threaded, the 808-007 is the correct Schedule 80 elbow selection.

The second distinction is turn angle. The 808-007 produces a 90° right-angle turn — the standard directional change for routing pipe runs around corners, through wall penetrations, and between horizontal and vertical orientations within a threaded assembly. This distinguishes it from the 819-series FPT × FPT 45° elbow (previously written at 1/2"), which provides a shallower half-right-angle offset for diagonal routing, compound-angle assemblies, and reduced-turbulence directional transitions in the same all-threaded system configuration. The 90° geometry is the more common selection for straightforward right-angle direction changes; the 45° applies where the layout geometry demands a shallower turn. When the routing requirement is a clean right-angle direction change in a fully threaded 3/4" Schedule 80 system, the 808-007 is the direct solution.

At 3/4", the all-threaded 90° elbow is a high-frequency component in a specific and well-defined set of system types. Chemical dosing and injection systems — built from threaded Schedule 80 PVC fittings and nipples for disassembly access and chemical compatibility — use the 808-007 at every right-angle routing change in the dosing header assembly. Irrigation control valve connection assemblies, where 3/4" threaded Schedule 80 construction is specified at valve stations and filter connections, require the 808-007 wherever the threaded pipe run must change direction. Instrument supply threaded runs, control panel piping, and small-bore equipment connection assemblies encounter the 808-007 at every 90° turn within the threaded portion of the system. The elevated pressure rating at 3/4" Schedule 80 — approximately 690 psi at 73°F — makes this elbow well suited for the high-pressure contexts where 3/4" threaded Schedule 80 assemblies are most commonly specified, including chemical dosing headers where backpressure, injection pressure, and system operating pressure can approach the limits of lower-pressure Schedule 40 alternatives.

The all-threaded FPT × FPT configuration serves the same three practical system contexts identified across all 808-series entries: fully threaded Schedule 80 assemblies where no cement work is performed at the elbow body; hybrid systems where the 808-007 handles direction changes within the threaded branch portion of a system that combines solvent-welded mains with threaded equipment and dosing connections; and retrofit situations where a direction change must be added to an existing 3/4" threaded Schedule 80 system without cutting solvent-cemented pipe.

Manufactured in dark gray Schedule 80 PVC, this elbow delivers the increased wall thickness and mechanical strength required in industrial, chemical, and commercial pressure piping where Schedule 40 ratings are insufficient. PVC's broad chemical resistance covers acids, bases, salts, chlorine, and most common process fluids, providing long service life in corrosive environments where metal elbows would corrode, scale, or seize on threads over time. NSF/ANSI 61 listing confirms suitability for potable water contact.

Rated to 690 psi at 73°F, this elbow handles standard to elevated pressure service across the full range of commercial and industrial Schedule 80 PVC applications at 3/4". Apply PTFE tape or compatible pipe thread sealant to all male threads before engaging either FPT end. Hand-tighten plus one to two turns — do not over-torque PVC female threads, as excessive force risks cracking the elbow body at the thread root. When assembling a nipple-elbow-nipple run, make up both ends evenly and avoid applying torsional stress to one end while tightening the other. Ensure correct rotational alignment before final make-up — the 90° direction of the turn is set at assembly and cannot be adjusted after both joints are tightened. Apply published pressure derating factors for service temperatures above 73°F.

Specifications:

Industries & Applications:

• Chemical Dosing & Injection Systems — The defining application for the 3/4" Schedule 80 all-threaded 90° elbow: routes 3/4" Schedule 80 PVC threaded pipe runs through 90° directional changes at structural corners, panel entry points, equipment clearance turns, and layout transitions in chemical dosing headers, injection quill assemblies, and reagent distribution runs where fully threaded Schedule 80 construction is standard practice for disassembly access and chemical compatibility; the 808-007 handles every right-angle turn in the threaded dosing assembly
• Fully Threaded Schedule 80 Systems — Routes a 3/4" threaded run through a 90° right-angle turn at every corner, wall penetration, and direction change in mechanical rooms, equipment bays, process connection assemblies, and instrument supply systems built entirely with threaded Schedule 80 PVC components — the standard right-angle elbow that defines the routing geometry of any all-threaded 3/4" Schedule 80 layout
• Irrigation Control Valve Assemblies — Provides right-angle direction changes in 3/4" Schedule 80 PVC threaded control valve connection assemblies, filter station inlet and outlet piping, and pump station connection runs in commercial and agricultural irrigation systems where threaded construction at valve and equipment connections provides disassembly access for seasonal service and component replacement
• Instrument Supply & Control System Piping — Routes 3/4" Schedule 80 threaded instrument supply runs, control panel distribution piping, and analyzer sample conditioning assemblies through 90° directional changes at panel entries, instrument rack approaches, structural clearances, and layout transitions where fully threaded construction allows the assembly to be built, modified, and maintained without cement work at the elbow position
• Industrial Process Piping — Changes direction on 3/4" Schedule 80 PVC threaded process lines at structural clearances, equipment footprint corners, and right-angle routing transitions in chemical processing, water treatment, and manufacturing facility piping where the threaded system construction requires an all-FPT elbow body at the direction change position
• Water & Wastewater Treatment — Routes 3/4" Schedule 80 PVC threaded chemical dosing supply lines, instrument connection runs, and secondary distribution branches through 90° turns at structural corners, equipment clearance transitions, and routing changes in municipal and industrial water treatment facilities where threaded construction is used at dosing and instrument connection points requiring periodic maintenance access
• HVAC & Mechanical Systems — Routes 3/4" Schedule 80 PVC threaded cooling tower chemical feed lines, treated water distribution branches, and glycol system connection assemblies through 90° directional changes at structural corners, equipment clearances, and panel entry points in commercial mechanical system piping where all-threaded construction is specified at the direction change position