S-9157K67 1.38" ID x 1 21/32" OD x 2 1/2" Long ASTM A312, ASTM A733, ASME B1.20.1 Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Key Features & Benefits at a Glance

• Superior corrosion resistance with 304/304L stainless steel construction, ideal for demanding environments with air, natural gas, oil, steam, and water.
• Versatile dual-connection design featuring threaded × butt weld ends for flexible installation and reliable integration into various piping systems.
• Precision-engineered threading with NPT standards (ASME B1.20.1) ensuring leak-proof, secure connections in high-pressure applications.
• Robust durability from Schedule 40 wall thickness, providing enhanced strength and longevity for industrial use.
• Broad compatibility with Class 150 fittings and flanges, simplifying procurement and assembly in multi-component systems.
• Compliance with stringent industry standards including ASTM A312 and A733, guaranteeing material quality and performance reliability.
• Environmentally safe operation with RoHS 3 compliance, meeting global regulatory requirements for hazardous substance control.

Professional Applications & Engineering Value

This 1 1/4" Schedule 40 stainless steel pipe nipple is engineered to address critical challenges in industrial fluid and gas handling systems. Its 304/304L stainless steel composition delivers excellent resistance to oxidation and chemical attack, making it suitable for aggressive media like steam, oil, and natural gas. The threaded × butt weld connection style offers installation flexibility—enabling quick assembly with threaded components while allowing permanent, high-strength welded joints where needed. This dual-connection capability reduces system complexity and maintenance downtime in plants, refineries, and HVAC applications. Precision NPT threading per ASME B1.20.1 ensures tight seals, minimizing leakage risks in pressurized operations. By meeting ASTM A312 and A733 specifications, this adapter provides consistent dimensional accuracy and mechanical integrity, supporting efficient, long-term performance in demanding environments.

Specification Summary & Compliance

This pipe nipple adheres to strict dimensional and material standards, including ASTM A312 for seamless and welded stainless steel pipe, ASTM A733 for welded and seamless carbon and austenitic stainless steel pipe nipples, and ASME B1.20.1 for NPT thread specifications. It features a Class 2A thread fit for reliable engagement and is RoHS 3 (2015/863/EU) compliant, ensuring environmental safety. The product is designed for use with Schedule 40 pipes and Class 150 fittings, providing consistent performance across air, natural gas, oil, steam, and water applications.