In the world of infrastructure, civil engineering, and fluid transport systems, the mechanical performance of pipes determines not just operational safety, but also long-term maintenance costs and regulatory compliance. One of the most important mechanical properties is ring stiffness, and testing it accurately is essential.

What is a Ring Stiffness Tester?

A Ring Stiffness Tester for Pipes is a mechanical testing machine designed to simulate the external forces that pipes encounter underground or under pressure. It measures a pipe’s resistance to radial deformation — i.e., how well it maintains shape when subjected to a load perpendicular to its surface.

What Tests Does It Perform?

Most modern Ring Stiffness Testers, like Gorban’s latest models, support the following:

✅ Ring Flexibility

Assesses the pipe’s ability to deform and recover without cracking, which is vital for seismic zones or uneven ground.

✅ Flattening Test

Simulates external load scenarios — such as soil and vehicular pressure — by applying a compressive force until deformation occurs.

✅ Uniform Load Test

Applies even pressure along the pipe’s circumference to evaluate uniformity and structure.

✅ Creep Ratio (1000h)

Evaluates long-term performance under load — a critical factor for buried or high-temperature applications.

✅ Deflection Level

Measures how much a pipe deforms at specific loads, helping verify compliance with local or international installation codes.

Who Needs This Machine?

The Ring Stiffness Tester is essential for:

– Plastic Pipe Manufacturers

– Municipal Project Inspectors

– Research Labs & Universities

– Contractors & Consultants

 Key Features to Look For

– Supports pipe diameters up to DN600 mm

– High-accuracy load cells and sensors

– Intelligent control system

– Data logging and export

– Long-duration creep testing

– Easy to operate, low maintenance

Real-World Applications

– Stormwater drainage under roads

– Sewage systems

– Corrugated pipe installations

– Irrigation or wastewater pipelines

Why Invest in One?

Buying a Ring Stiffness Tester is about brand reputation, customer trust, and market competitiveness. One test can prevent costly failures and support strong QC.

Interested in a Ring Stiffness Tester?

At Gorban, we manufacture precision testing equipment.