Pipe Inner Diameter Tester (Corrugated) for Measuring Plastic Pipes, Concrete Bridge Waveguides, and Engineering Duct Systems

📌 Pipe Inner Diameter Tester (Corrugated) – Product Overview

The Pipe Inner Diameter Tester (Corrugated) is a high-precision testing device specifically designed for measuring the internal diameters of corrugated pipes, plastic conduits, and embedded waveguide rings used in concrete bridge construction. The instrument is manufactured in strict accordance with the Ministry of Transport’s JT/T529-2016 “Method for Measuring Inner Diameter of Corrugated Pipes” and GB/T9647-2015 “Environmental Testing Methods for Thermoplastic Pipes,” ensuring accuracy, repeatability, and traceability of measurement data.

This device integrates a digital displacement sensor system with a mechanical positioning structure, enabling rapid and highly accurate inner diameter measurements of various pipe types, including bridge-embedded conduits, plastic sleeves, and corrugated waveguides. It is widely used in bridge construction, post-tensioning operations, metro utility tunnels, cable conduits, and tunnel engineering, making it ideal for construction contractors, quality inspection departments, and pipe manufacturers for on-site or factory inspections.

The Pipe Inner Diameter Tester (Corrugated) is equipped with a high-precision LED digital display, allowing operators to read results at the millimeter level for rapid field use. The instrument’s linear guide rail structure not only improves measurement accuracy but also expands the measurable range, making it suitable for testing a variety of pipe specifications.

To meet the demands of deep-section pipe inspection, the device includes an extended measuring rod capable of reaching the base of the conduit for full-depth inner diameter analysis. The reinforced base design enhances operational stability and shock resistance, ensuring safety during use while also improving the unit’s professional appearance and engineering adaptability.

In recent years, as municipal infrastructure, railway transit, and prestressed concrete construction projects evolve, more general contractors and third-party quality control agencies have included the Pipe Inner Diameter Tester (Corrugated) as part of their standard equipment lineup. Especially during embedded conduit inspections, this instrument can quickly determine whether the pipe’s inner diameter has been compromised by transportation, stacking, or on-site handling—effectively avoiding post-grouting failures, conduit blockages, and prestress tensioning issues.

📌 Product Details & Operation Display

🔧 Operating Area Details

⚙️ Display Area Details

🔘 Support Bracket Details 1

🔘 Support Bracket Details 2

⚙️ Key Features

• High precision LED digital display
• Linear guide rail, offering greater precision and a wide measurement range
• Add-on measurement capability for deeper measurements and higher accuracy
• Stable base, ensuring security and an aesthetically pleasing design

📊 Technical Parameters

• Measurement Range: Φ22mm ~ Φ1300mm
• Measurement Resolution: 0.1mm (LED digital display)
• Measurement Accuracy: ±0.5% (Sample Internal Diameter)
• Power Supply: 220V × 50Hz
• Dimensions: 520 × 200 × 1690mm
• Weight: 23kg

💡 Why Choose Us?

Tianchang Tongda Instruments Co., Ltd. is a trusted test equipment manufacturer in China,
with over 20 years of experience in industrial testing and quality control.

We specialize in high-precision equipment for pipes, steel structures, rebar, cables, insulation materials, and more.
Our instruments are widely used in laboratories, manufacturing plants, universities, and third-party inspection agencies.

As an ISO-certified company, we ensure all products meet international standards such as ISO, ASTM, and EN.
From installation to remote support, we deliver reliable service and lasting technical assistance.

Our sales network covers all provinces in China and continues to grow globally.
Clients in Southeast Asia, the Middle East, and Europe rely on us for accurate and efficient testing solutions.

 

✅	20+ years of manufacturing experience
✅	ISO, ASTM, EN standard compliance
✅	Used by top labs and research centers
✅	Full after-sales support and fast delivery
✅	Customized testing solutions for your needs