1-1/4 inch x 12 inch Galvanized Steel Nipple

1-1/4" x 12" Galvanized Steel Nipple – Threaded Pipe for Low-Pressure Piping Systems

The 1-1/4" x 12" Galvanized Steel Nipple is a straight, male-threaded pipe segment used for extending pipe runs or connecting fittings in low- to medium-pressure applications. Manufactured from Schedule 40 galvanized steel, it is designed for strength, corrosion resistance, and dimensional accuracy in mechanical, plumbing, and HVAC systems.

This nipple features tapered National Pipe Threads (NPT) on both ends for secure engagement with female-threaded components. The hot-dip galvanized coating provides long-term protection against corrosion in both indoor and exterior installations where moisture exposure is present.

Key Performance Features

• ✅ Hot-Dip Galvanized Coating Provides a durable zinc layer for corrosion protection in potable and non-potable water systems.
• ✅ Schedule 40 Wall Thickness Supports structural integrity and consistent pressure retention under typical operating conditions.
• ✅ NPT Threaded Ends Precision-cut tapered threads conform to ANSI/ASME B1.20.1 for tight, leak-resistant seals with compatible components.
• ✅ Dimensional Consistency Length tolerance and thread accuracy help reduce field modifications and improve installation efficiency.

Product Specifications

• Material: Carbon Steel with Hot-Dip Galvanized Coating
• Nominal Size: 1-1/4”
• Length: 12” overall
• Thread Type: NPT (Male x Male)
• Wall Thickness: Schedule 40
• Compliance: Typically meets ASTM A733 and ASTM A53 standards

Application Areas

Commonly used in water distribution systems, gas piping, and mechanical applications where threaded steel components are required. Suitable for residential, commercial, and light industrial piping systems including fire protection (non-critical zones), water heaters, and low-pressure steam lines.

Installation Notes

Thread sealant or PTFE tape must be applied prior to assembly to ensure a leak-resistant connection. Use pipe wrenches for proper torque without over-tightening. All installations should follow applicable plumbing and mechanical codes for pressure class and corrosion requirements.

Material Consideration

Galvanized steel is suitable for non-corrosive and mildly corrosive environments. Not recommended for systems conveying acids, chlorinated water, or high-salinity fluids unless additional protective measures are implemented.