3/8 inch x 2 inch Galvanized Steel Nipple

3/8" x 2" Galvanized Steel Nipple – Threaded Connector for Mechanical and Utility Piping

The 3/8" x 2" galvanized steel nipple is a straight, Schedule 40 pipe fitting used to join two female-threaded components in utility, drainage, and low-pressure mechanical systems. Constructed from carbon steel and hot-dip galvanized in accordance with ASTM A153, this fitting provides moderate corrosion resistance and mechanical strength for a variety of non-potable installations.

Technical Specifications

• Nominal Size: 3/8 inch
• Length: 2 inches overall
• Material: Carbon steel, Schedule 40
• Finish: Hot-dip galvanized (ASTM A153)
• Thread Type: NPT (National Pipe Taper), male x male, ANSI/ASME B1.20.1
• Manufacturing Standards: Nipple per ASTM A733, pipe per ASTM A53 Grade A or B

Installation Considerations

Prior to assembly, ensure threads are clean and apply PTFE tape or compatible thread sealant rated for the system media. Use a pipe wrench to tighten connections, avoiding excessive torque to preserve thread integrity. This fitting is not intended for potable water unless certified accordingly. For outdoor or high-moisture environments, ensure system design includes appropriate corrosion control measures.

Typical Applications

This galvanized steel nipple is commonly used in:

• Low-pressure water and air distribution systems (non-potable)
• Mechanical utility piping in commercial and residential settings
• Compressed air lines, equipment tie-ins, and service connections
• Threaded fittings terminations or short extensions

Material Consideration

Galvanized steel offers moderate corrosion resistance in dry or mildly humid environments. Not suitable for systems with aggressive chemicals, buried installations without additional protection, or continuous exposure to moisture unless additional protective coatings are used. For higher resistance, consider using stainless steel or epoxy-coated fittings.