S-1443N187 1.049" ID x 1 5/16" OD x 5" Long ASME B1.20.1, ASTM A733 Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe with Sealant

Key Features & Benefits at a Glance

• Leak-proof performance with factory-applied PTFE thread sealant ensures reliable connections in high-pressure systems.
• Superior corrosion resistance from 316/316L stainless steel construction extends service life in harsh chemical and marine environments.
• High-strength welded design maintains structural integrity under continuous stress from air, gas, oil, steam, and water applications.
• Precision NPT threading conforms to ASME B1.20.1 standards for seamless compatibility with Class 150 fittings and flanges.
• Versatile fluid handling capability across multiple media including steam, oil, and natural gas without cross-contamination risks.
• Regulatory compliance with ASTM A733 manufacturing standards and RoHS 3 directives meets global industrial safety requirements.
• Optimized flow characteristics through consistent 1.049" ID and Schedule 40 wall thickness minimize pressure drop in piping systems.

Professional Applications & Engineering Value

This 316 stainless steel threaded pipe nipple solves critical sealing challenges in industrial fluid systems through its welded construction and integrated PTFE thread sealant. The combination prevents galling during installation while creating permanent, leak-proof connections that withstand thermal cycling and vibration in steam, oil, and gas applications. Engineers specify this NPT male threaded component for its ability to maintain seal integrity under pressure fluctuations between Class 150 flanges and fittings, eliminating downtime in chemical processing, power generation, and marine installations. The 316/316L stainless steel material provides inherent resistance to chloride-induced stress corrosion cracking, making it ideal for systems handling corrosive media or operating in coastal environments.

Specification Summary & Compliance

Manufactured to ASME B1.20.1 thread standards with NPT threading on both ends ensuring precise engagement with mating components. The Schedule 40 pipe construction meets ASTM A733 specifications for welded stainless steel pipe, with dimensional accuracy maintained at 1.049" ID and 1-5/16" OD. Compliant with RoHS 3 (2015/863/EU) directives for hazardous substance restrictions, this nipple is certified for use with Class 150 fittings and flanges in air, natural gas, oil, steam, and water service.