Standard GI Pipe 3/4 Inch Galvanized Steel (Class B)

GI Pipe 3/4 Inch

The Standard GI Pipe 3/4 is a medium-gauge galvanized steel conduit engineered for pressurized fluid transport and structural applications. This 20mm nominal bore pipe features a protective zinc coating to prevent oxidation in exposed or underground environments. It is specifically designed to meet the requirements of residential, commercial, and industrial water distribution systems.

Built for the Job

Plumbers and site supervisors select this specific 20mm tubing for its balance of wall thickness and pressure handling. It serves as the primary choice for branch lines in domestic plumbing due to its high mechanical strength compared to plastic alternatives. The material resists UV degradation and impact damage, making it suitable for outdoor installations where pipes are exposed to the elements. On industrial sites, these steel conduits are frequently used for compressed air lines and fire protection standpipes because they maintain structural integrity at high temperatures.

• Installation of main and branch water supply lines in multi-story buildings.

• Fabrication of heavy-duty perimeter fencing and security gate frames.

• Construction of greenhouse structures and agricultural irrigation manifolds.

Product Highlights

Corrosion Protection

The hot-dip galvanizing process ensures that both the interior and exterior surfaces receive a uniform zinc layer that prevents rust.

Manufacturing Standards

• Adheres to BS 1387 (Class B) specifications for medium-weight steel tubes.
• Features high-frequency induction welding for a seamless internal finish.

Thread Compatibility

The ends are pre-threaded to BSP standards, allowing for immediate integration with standard malleable iron fittings.

Technical Specifications

What’s Included

• 1 x 6.0 Meter Length of 3/4″ Galvanized Iron Pipe

On-Site & Workshop Notes

• Use a high-quality pipe wrench to avoid marring the zinc coating during installation.

• Apply cold galvanizing spray to any cut ends or exposed threads to maintain rust protection.

• Ensure all threaded joints are sealed with PTFE tape or plumbing hemp to prevent leaks under pressure.

• Store the steel conduit off the ground on timber dunnage to prevent water pooling inside the bore during site storage.