90 Degree Elbow, FPT x FPT PVC Schedule 40 2" (408-020)

This 2" Schedule 40 PVC FPT × FPT 90 Degree Elbow provides an all-threaded right-angle directional change in a fully threaded Schedule 40 PVC pressure piping system. Both female NPT threaded ends receive standard 2" 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 408-020 belongs in a system layout. The first is connection type. Within the Schedule 40 90° elbow family at 2", the 406-series all-socket elbow serves fully solvent-welded PVC pipe systems where both sides of the right-angle turn are cemented pipe ends; the 407-series mixed elbow bridges a solvent-welded inlet to a female-threaded outlet at the turn; and the 408-020 serves fully threaded assemblies where both sides of the turn receive male-threaded nipples or MPT-terminated fittings. When both connections at the directional change are threaded — on both sides of the right-angle turn — the 408-020 is the correct Schedule 40 elbow selection.

The second distinction is schedule. The 808-series Schedule 80 FPT × FPT 90° elbow (previously written at 1") serves the same all-threaded connection requirement at a higher pressure rating in dark gray Schedule 80 PVC. The 408-020 is the Schedule 40 white PVC equivalent — the correct selection wherever the system is built in Schedule 40 and the Schedule 40 threaded elbow pressure rating is sufficient for the application. At 2", the pressure rating of the Schedule 40 threaded elbow is meaningfully lower than both the Schedule 40 socket elbow at this size and the Schedule 80 threaded equivalent — verifying that the assembly operating pressure does not exceed the published Schedule 40 FPT elbow rating at 2" is an important pre-specification step; if the system pressure exceeds the Schedule 40 threaded rating at this size, the Schedule 80 equivalent is the appropriate upgrade.

The all-threaded FPT × FPT configuration serves several practical system contexts at 2". In fully threaded Schedule 40 assemblies — irrigation pump station outlet piping, equipment connection runs, filter station assemblies, and distribution valve runs built with threaded pipe and nipples rather than solvent-welded pipe — the 408-020 handles every right-angle direction change in the threaded layout without cement joints at the elbow body. In hybrid systems that combine solvent-welded PVC mains with threaded branch sub-assemblies at pump and equipment connections, the 408-020 routes the threaded portion through 90° turns within the branch. In retrofit situations where a direction change must be added to an existing 2" threaded system without cutting solvent-cemented pipe, the 408-020 threads directly into the assembly without disturbing the surrounding piping.

At 2", the all-threaded 90° elbow appears most frequently at pump station outlet routing, large-bore equipment connection assemblies, filter station piping, and irrigation mainline valve connection runs — system positions where the 2" pipe size carries substantial flow volume and the threaded construction is specified for its serviceability and disassembly access advantages over permanent solvent-welded joints at major equipment interfaces.

Manufactured in white Schedule 40 PVC, this elbow delivers reliable performance across residential, commercial, and light industrial piping applications at this large-bore pipe size. PVC's resistance to acids, bases, salts, chlorine, and common process fluids provides long service life in environments where metal elbows would corrode, scale, or seize on threads. NSF/ANSI 61 and NSF/ANSI 14 listings confirm suitability for potable water contact.

Apply PTFE tape or compatible pipe thread sealant to all male threads before engaging either FPT end. Hand-tighten plus one to two turns with a strap wrench at the 2" thread size — avoid over-torquing PVC female threads, as excessive force risks cracking the elbow body at the thread root or at the outer corner of the elbow body where stress concentration is highest. 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:

• Irrigation & Agriculture — Routes 2" Schedule 40 PVC threaded pipe runs through 90° turns at pump station outlet connections, filter station piping transitions, mainline valve body connections, and above-grade routing changes in large-scale commercial, golf course, and agricultural irrigation systems where threaded construction at pump and equipment connections provides disassembly access for seasonal service and component replacement
• Pump Station & Equipment Routing — Provides right-angle direction changes on 2" threaded Schedule 40 PVC pump discharge and suction piping at layout corners, structural clearances, and equipment footprint transitions in pump station outlet assemblies, booster pump connections, and commercial mechanical equipment rooms where threaded construction is specified for equipment serviceability
• Commercial Plumbing — Routes 2" threaded Schedule 40 PVC runs through 90° turns at wall entry points, equipment clearances, and right-angle transitions in mechanical room and building utility systems where the 2" pipe size serves primary distribution functions and the threaded elbow provides a direction change without solvent cement work at the connection point
• Water & Wastewater Treatment — Changes direction on 2" Schedule 40 PVC threaded process lines at structural clearances, equipment footprint corners, and routing transitions in water treatment facility piping where threaded construction is used at equipment connection and distribution points requiring periodic maintenance access
• Filter Station Piping — Provides 90° direction changes in 2" threaded Schedule 40 PVC filter station inlet and outlet piping, backwash headers, and chemical treatment connections at irrigation filter stations, commercial water filtration systems, and point-of-use treatment assemblies where threaded construction facilitates filter media replacement and service
• Pool, Spa & Aquaculture — Routes 2" threaded Schedule 40 PVC recirculation and filtration connection piping through 90° turns at pump and filter equipment connections, heater inlet routing, and above-grade mechanical equipment assemblies in commercial pool, spa, and aquatic facility installations where threaded connections at major equipment interfaces provide disassembly access for seasonal service
• Site Utilities & Above-Grade Distribution — Provides 90° directional changes on 2" threaded Schedule 40 PVC above-grade utility water distribution runs, backflow preventer connection piping, and equipment supply assemblies at right-angle routing transitions in commercial site development and facility maintenance systems where threaded construction is preferred at serviceable connection points