2″ x 4-1/2″ Galvanized Steel Nipple – Threaded Pipe Fitting for Corrosion-Resistant Piping Systems
The 2″ x 4-1/2″ galvanized steel nipple is a straight, male-threaded pipe segment designed for joining two female-threaded pipe fittings in water distribution, air lines, or general mechanical piping. It is fabricated from Schedule 40 steel pipe and hot-dip galvanized in accordance with ASTM A153 to provide long-term corrosion resistance in non-potable systems.
Product Specifications
- Material: Carbon steel pipe with hot-dip galvanized zinc coating
- Size: 2″ NPT nominal diameter x 4-1/2″ overall length
- Thread Type: ANSI/ASME B1.20.1 NPT (male x male)
- Wall Thickness: Standard Schedule 40
- Manufacturing Standard: Conforms to ASTM A733 (for pipe nipples)
- Coating Standard: Hot-dip galvanized per ASTM A153
- Operating Pressure: Up to 150 psi, dependent on system design and media
Installation Guidelines
Ensure threads are clean and undamaged before installation. Use PTFE thread sealant or approved pipe joint compound to ensure a pressure-tight connection. Tighten using a properly sized pipe wrench, avoiding overtightening to prevent galling or thread damage.
Typical Applications
This galvanized steel nipple is used in:
- Domestic and commercial water supply lines (non-potable)
- Irrigation systems and low-pressure fluid conveyance
- Air compressor piping and mechanical system interconnects
- Outdoor installations where protection against rust is critical
Material Consideration
Galvanized steel offers enhanced resistance to atmospheric corrosion but should not be used in closed-loop hydronic systems or with aggressive water chemistries that may degrade the zinc coating. Not intended for use with potable water unless explicitly certified.
