S-4859K318 1.38" ID x 1 21/32" OD x 4" Long ASME B1.20.1, ASTM A53, ASTM A733 Standard-Wall Galvanized Steel Threaded Pipe Nipples and Pipe

Key Features & Benefits at a Glance

• Superior corrosion resistance with galvanized steel construction, extending service life in demanding environments like water, steam, and chemical applications.
• Reliable dual-thread compatibility featuring BSPT × NPT male ends for versatile connections across international piping systems without adapters.
• Robust welded design ensures high-pressure integrity for air, natural gas, oil, steam, and water services up to Class 150 flange ratings.
• Precision threading per ASME B1.20.1 guarantees secure, leak-free joints and easy installation in tight industrial spaces.
• Heavy-duty Schedule 40 wall thickness (0.14") provides excellent structural strength for long-term performance in high-vibration applications.
• Full regulatory compliance with REACH and RoHS 3 standards, ensuring safe use in regulated industrial and commercial settings.
• Standardized dimensions (1 1/4" pipe size, 4" length) enable direct replacement and interoperability with existing galvanized iron/steel infrastructure.

Professional Applications & Engineering Value

This galvanized steel threaded pipe nipple delivers critical engineering solutions where corrosion resistance and pressure integrity are paramount. The welded construction combined with galvanized coating prevents rust degradation in aggressive media including steam lines, compressed air systems, and hydrocarbon processing. Its BSPT × NPT threaded connections eliminate compatibility issues in multinational plant installations, while the Schedule 40 wall profile maintains burst resistance under cyclic pressure loads. Engineers specify this adapter for Class 125/150 flange systems in industrial plumbing, process piping, and utility distribution networks, where ASTM A53/A733 material certification ensures consistent mechanical properties across production batches.

Specification Summary & Compliance

Manufactured to ASME B1.20.1 threading specifications with precise Class 2A/ISO tolerance profiles. Material conformity per ASTM A53 (welded steel pipe) and ASTM A733 (welded/unwelded fittings) standards. Fully compliant with REACH (EC 1907/2006) substance restrictions and RoHS 3 (2015/863/EU) directives for hazardous material elimination. Suitable for pressures matching Class 150 flange ratings in galvanized iron/steel systems.