G.I. Pipe Fittings

These fittings are typically crafted from iron or steel and coated with zinc to resist corrosion—a process known as galvanization. The most common method is hot-dip galvanizing, where the fittings are submerged in molten zinc, forming a durable, metallurgically bonded coating

• The zinc layer acts as a sacrificial anode, offering cathodic protection even if the coating is scratched

• Common types include elbows, tees, couplings, reducers, flanges, and threaded or welded variants

Galvanized iron fittings are versatile across many systems:

• Plumbing: Water supply, drainage, sewer, and wastewater systems in residential and commercial buildings

• Industrial: High-pressure fluid, chemical, or gas lines (including steam and hot water)

• Fire Sprinkler & Outdoor Systems: Outdoor faucets, sprinkler systems, irrigation lines

• Construction & Structural: Frameworks, handrails, fencing, scaffolding—especially where durability and aesthetics matter

• Non-potable or Agricultural Systems: Irrigation or industrial cooling systems where corrosion resistance is essential 

1. Corrosion Resistance & Longevity

The zinc coating provides a strong barrier against rust and harsh environmental conditions—lasting 25–50 years depending on exposure

2. Strength and Durability

Built upon a sturdy steel or malleable iron core, they withstand pressure, mechanical stress, and impact in demanding environments

3. Cost-Effectiveness

Even though initial costs might be higher than plastic options, reduced maintenance and long service life make them economical over time

4. Ease of Installation & Maintenance

Threaded designs allow quick assembly and future maintenance. The coating is visible, so inspections for wear or damage are simpler

5. Aesthetic Appeal

A smooth, uniform metallic finish can play a decorative role in visible installations

6. Environmental & Structural Protection

Galvanization offers full 360° coverage—even in corners or hidden areas—and can continue to protect small damaged spots via galvanic action. Zinc is also recyclable, supporting sustainability effortst. 

• Temperature Sensitivity: Coating degradation may accelerate above ~200 °C.

• Chemical Vulnerabilities: Acidic environments can corrode zinc more rapidly.

• Water Quality Concerns: In potable systems, zinc flakes may occasionally impact taste or quality.

• Installation Weight: Heavier than plastic or copper, requiring more effort and tooling.

• Potential Flow Restriction: Internal corrosion over time may reduce water flow.