Introducing the STZ Industries 3/8 in. MIP x 3/8 in. MIP Black Steel Nipple, a compact, high-reliability connector designed to join two male-threaded steel pipes with precision and confidence. Built for durability and ease of use, this 3-1/2 inch nipple is ready for demanding plumbing, HVAC, and industrial applications.
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Dual MIP ends: both ends are 3/8 in. male iron pipe (MIP) threads, enabling a straightforward MIP-to-MIP connection without adapters.
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Material and finish: solid steel core with a protective black finish that resists corrosion in challenging environments and over time.
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Length: 3-1/2 inches provides a practical reach for tight installations where space is at a premium.
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Pressure and temperature rating: rated for up to 203 psi and temperatures up to 400°F, making it versatile for water, gas, and air line work in both residential and commercial settings.
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Lead-free: manufactured to be lead-free, aligning with safer plumbing standards for many potable and non-potable applications.
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Packaging: bagged for compact storage and protection during handling and transport.
Ideal use cases
- Extending or bridging sections in steel piping runs where a short, reliable MIP-to-MIP connection is required.
- HVAC installations, shop-built gas lines, or compressed air systems where a durable, heat-tolerant nipple is essential.
- Repairs or retrofits in spaces with limited clearance, where a longer nipple would be impractical but a 3-1/2" length fits perfectly.
What makes this STZ nipple stand out
- Safety and compliance: lead-free construction supports safer installations across a range of environments.
- Durability in harsh conditions: black steel finish adds a layer of protection against corrosion, helping extend service life between maintenance intervals.
- Straightforward compatibility: standard 3/8" MIP threads ensure easy pairing with a wide array of existing fittings and systems.
Practical installation tips
- Ensure threads are clean before assembly. Use an appropriate pipe-thread sealant or PTFE tape rated for metal threads to achieve a reliable, leak-proof seal.
- Adhere to the specified limits: do not exceed 203 psi or 400°F to maintain safe, reliable operation.
- Store and handle with care; the bagged packaging helps protect the finish from nicks and surface damage until you’re ready to install.
