1/2 inch x 3-1/2 inch Galvanized Steel Nipple

1/2" x 3-1/2" Galvanized Steel Nipple – Threaded Pipe Segment for Plumbing Applications

The 1/2" x 3-1/2" galvanized steel nipple is a threaded pipe segment designed for joining components within a piping system. Manufactured from steel and hot-dip galvanized for enhanced corrosion resistance, this fitting is suitable for use in water, air, oil, and non-corrosive fluid systems where threaded iron pipe is required.

This pipe nipple features NPT (National Pipe Tapered) threads on both ends, allowing for a secure connection to other threaded galvanized steel fittings or pipe sections. It is designed to ANSI and ASTM standards applicable to Schedule 40 galvanized pipe systems, offering mechanical strength and reliability in demanding settings.

Performance Characteristics

• ✅ Construction Material: Carbon steel, hot-dip galvanized per ASTM A123
• ✅ Nominal Size: 1/2 inch diameter x 3-1/2 inch length
• ✅ Thread Type: NPT – male threads both ends (MBE)
• ✅ Pressure Class: Compatible with standard Schedule 40 piping applications
• ✅ Application Range: Potable water systems, compressed air, and general-purpose plumbing lines

Installation Guidelines

Installation requires proper thread preparation, including the application of PTFE thread sealant tape or compound to ensure leak-free connections. Over-tightening should be avoided to prevent thread damage. Wrenches should be used on the hex or flats of the nipple to avoid applying torque to the pipe ends themselves.

Use Cases

Galvanized steel nipples are commonly deployed in both residential and commercial plumbing systems, including risers, pressure lines, and distribution headers. Their durability makes them suitable for mechanical rooms, utility lines, and outdoor or semi-exposed installations where corrosion resistance is a concern.

Specification Compliance

• Pipe Specification: ANSI/ASME B1.20.1 (threading)
• Galvanizing: ASTM A123 or equivalent standard
• Schedule: 40
• Maximum Temperature: Typically rated for use up to 390°F (204°C), dependent on system conditions

This 1/2" x 3-1/2" galvanized steel nipple is intended for professionals requiring consistent, code-compliant components in threaded steel piping systems. Confirm compatibility with applicable local codes and standards prior to use.