Upgrade your plumbing runs with the STZ Industries 1-1/4 in MIP to 1-1/4 in FIP Black Malleable Iron 45° Street Elbow. This compact, space-saving elbow is engineered for reliable performance in tight spaces where a traditional elbow would struggle, pairing robust malleable iron construction with precise threading for dependable connections.
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End connections: 1-1/4" MIP (male) to 1-1/4" FIP (female).
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Material: Black malleable iron for superior impact resistance and durability in demanding piping systems.
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Finish: Black for a clean, cohesive look and added protection in indoor environments.
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Maximum pressure: 300 psi, suitable for typical residential and commercial water and air lines.
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Maximum temperature: 150°F, adequate for hot water and heating applications within normal service conditions.
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Type: 45-degree street elbow to save space and simplify installation in run-and-turn configurations.
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Lead content: Lead-free construction, designed with potable-water considerations in mind.
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Packaging: Bagged for clean, protected shipping and easy inventory management.
Why this elbow stands out
Unlike standard elbows, this 45° street design reduces the footprint of your piping layout, making it ideal for cramped mechanical rooms, basements, and crawlspaces. The dual-threaded MIP/FIP configuration provides a straightforward, reliable retrofit or new-build solution that works with typical black iron piping systems. The lead-free composition safeguards drinking-water quality, giving you confidence in residential installations and ongoing maintenance.
Ideal applications
- Residential plumbing runs where space is at a premium and a seamless 45° turn is needed.
- Hydronic heating and radiant floor systems requiring durable, high-psi connections.
- Potable-water distribution in non-potable flags, boiler feed lines, and other standard piping networks.
- Industrial maintenance projects that rely on robust malleable iron fittings for air or water lines.
Practical installation tips
- Prepare threads with an appropriate thread sealant or PTFE tape rated for malleable iron and the service you’re running. Follow sealant manufacturer guidelines for coverage and overlap.
- Ensure threads are clean and free of debris before installation to prevent cross-threading and leaks.
- Hand-tighten first, then snug with a wrench—avoid overtightening to prevent damaged threads or distortion of the elbow.
- Verify compatibility with your piping system’s materials and standards. This elbow is designed for standard 1-1/4" pipe sizes using MIP and FIP threads.
Durability and long-term performance
Malleable iron provides excellent ductility and impact resistance, delivering reliable performance in everyday piping scenarios. The black finish helps resist surface corrosion in typical indoor environments, while the lead-free construction supports safer potable-water distribution. With a 300 psi rating and 150°F maximum, this elbow handles a wide range of common service conditions without compromising fit or flow.
Whether you’re plumbing a new build or upgrading an aging network, the STZ Industries 1-1/4 in MIP x 1-1/4 in FIP Black Malleable Iron 45° Street Elbow is a purpose-built choice for durable, space-conscious, and code-aware connections.
