Street Elbow, 90 Degree, MPT x FPT PVC Schedule 40 1-1/2" (412-015)

This 1-1/2" Schedule 40 PVC 90 Degree Street Elbow (MPT x FPT) provides a compact right-angle direction change in all-threaded PVC piping systems with one male-threaded inlet and one female-threaded outlet — allowing the elbow to thread directly into any standard female-threaded port, fitting body, valve, or equipment connection without requiring an intermediate nipple at the inlet end. Constructed in white Schedule 40 PVC, it offers the corrosion resistance and chemical compatibility required across a wide range of commercial plumbing, irrigation, and light industrial fluid handling applications where threaded construction is specified or preferred throughout the system.

The 1-1/2" MPT inlet threads directly into any standard 1-1/2" FPT or FIP female-threaded fitting, valve body, pump port, or equipment connection, while the 1-1/2" FPT outlet accepts any standard 1-1/2" male NPT-threaded pipe end, nipple, or fitting for the downstream direction change leg. This MPT x FPT configuration — commonly referred to in the field as a street elbow or street ell — eliminates the need for a short nipple at the inlet end of the elbow, producing a more compact assembly at female-threaded ports where space is limited or where a nipple-plus-elbow combination would extend the assembly beyond available clearances. The street elbow is the correct choice when the upstream component presents a female-threaded port that the elbow must enter directly — such as a tee branch outlet, a cross port, a valve body outlet, or a manifold FPT connection — rather than a male pipe end that would engage a standard FPT x FPT elbow.

Rated to approximately 330 psi at 73°F, this elbow is suited for standard commercial and light industrial water distribution and irrigation service within its pressure class. Its PVC composition provides excellent resistance to corrosion, scale, chlorinated water, and a broad range of chemical exposures, making it a reliable long-term alternative to metal street elbows in moisture-prone or chemically active environments. NSF/ANSI 61 listing confirms suitability for potable water contact, including use in drinking water distribution and treatment systems.

Install using a quality pipe thread sealant or PTFE tape on all male NPT threads — both the 1-1/2" MPT inlet and the male NPT threads of any downstream component engaging the FPT outlet — before engagement. Avoid over-torquing — PVC threads require hand-tight plus one to two turns; excessive force can crack the fitting body or distort thread engagement. Plan the outlet direction of the elbow before final make-up, as the downstream pipe run alignment is established when the MPT inlet threads are fully engaged in the receiving female port. Derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Threads directly into female-threaded tee branches, cross ports, valve body outlets, and manifold FPT connections on 1-1/2" all-threaded PVC irrigation assemblies, producing a compact 90-degree direction change without an intermediate nipple at each valve station turn point in agricultural and municipal irrigation pump stations and zone headers
• Commercial Plumbing — Provides a compact right-angle turn at female-threaded ports on valves, manifold bodies, and distribution fitting assemblies in commercial building water supply systems where space constraints at threaded connection points favor a street elbow over a nipple-plus-FPT-elbow combination
• Industrial Process Piping — Threads directly into female-threaded ports on process water distribution headers, equipment female-threaded outlets, and valve body FPT connections in water treatment, chemical processing, and manufacturing facilities where all-threaded Schedule 40 PVC construction requires a compact 90-degree direction change at female port locations
• Chemical Handling — Provides a corrosion-resistant compact direction change at female-threaded ports in systems conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal fittings, particularly in all-threaded chemical feed manifolds, metering pump distribution headers, and injection line assemblies at 1-1/2" line sizes where eliminating an intermediate nipple at each turn reduces potential leak points
• Water Treatment & Aquaculture — Used at female-threaded filter housing ports, pump connection FPT outlets, and treatment equipment female-threaded connections where a compact 90-degree turn is required and NSF/ANSI 61 compliance is needed throughout the all-threaded PVC assembly
• HVAC & Mechanical Systems — Threads directly into female-threaded valve bodies, pump outlets, and equipment connections on cooling tower supply assemblies, chilled water distribution branch connections, and chemically treated water system service lines where a compact street elbow produces a tighter, lower-profile direction change than a nipple-and-elbow combination at 1-1/2" threaded ports