How to Connect Galvanized Pipes & Fittings?

Galvanized pipe fittings are essential for plumbing, HVAC, and industrial systems. They connect pipes, change flow direction, and ensure leak-proof performance. This guide covers galvanized pipe connection methods, common types of pipe fittings, and solutions for rusted joints.

Why Choose Galvanized Pipe Fittings?

✔ Corrosion-resistant – iron pipe fittings surface zinc coating protects against rust.

✔ High strength – carbon steel pipe fittings is Suitable for high-pressure water/gas systems. customer could choose low ,middle , high hardness.

✔ Safe for potable water – steel pipe fittings prevents steel contaminants.

✔ Durable – Withstands outdoor and harsh environments.

✔ Price:cheap price and competive performance

Common Types of Pipe Fittings

1. Galvanized Steel Pipe Fittings – Ideal for water/gas lines.
2. Cast Iron Pipe Fittings – Used in drainage/sewage systems.
3. Black/Stainless Steel Pipe Fittings – For high-temperature/pressure applications.

How to Connect Galvanized Pipes?

A. Threaded Pipes:

1. Wrap threads with PTFE tape or apply pipe dope.
2. Hand-tighten, then secure with two pipe wrenches.

B. Non-Threaded Pipes:

1. Measure pipe inside/outside diameters.
2. Select smooth/special connectors
3. Align pipes, mark positions, and tighten bolts evenly

C. Welding (Not Recommended):
⚠️ Challenges: Zinc fumes, weld porosity, corrosion risk.
✅ Solution: Remove zinc coating before welding, then repaint.

Fixing Rusted Galvanized Pipes

1. Apply penetrating oil to rusted joints.
2. Use two pipe wrenches to loosen nuts (turn counterclockwise).
3. Replace damaged fittings with new galvanized/cast iron fittings.