Universal testing machine with ring radial tension fixture for aluminum-plastic composite pipes and other pressure pipe tests.
Overview
This apparatus is designed per GB/T 18997.1-2020 "Aluminum-plastic multilayer pressure pipes - Part 1: Intermediate aluminum pipes with lap-welded aluminum layer" and related pipe standards for the "ring radial tension" test. It consists of an electronic universal testing machine and a dedicated ring radial tension fixture. The fixture is a precision-machined alloy-steel assembly of two semi-circular (C-shaped) halves hinged together by pins; a pipe-ring specimen is slipped over the two halves, and as the moving crosshead rises the halves spread radially and pull the ring apart. The load cell records the maximum ring radial tension (in N). It is used to determine the ring radial tensile strength of aluminum-plastic composite and plastic pipes.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• High measurement accuracy with stable repeatability
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| System | electronic universal testing machine + ring radial tension fixture |
| Common frame capacity | 10 / 20 / 50kN |
| Machine accuracy class | Class 0.5 |
| Force range | 0.4%–100% FS |
| Indicating error | within ±1% |
| Test speed | 1–500 mm/min stepless |
| Fixture material | alloy steel (chrome-plated) |
| Applicable OD | configured per pipe size |
| Ring specimen length | as standard (typically 50mm) |
| Mounting | threaded adaptors to machine upper/lower crossheads |
| Result | max ring radial tension (N) |
| Standard | GB/T 18997.1-2020 etc. |
Standards
GB/T 16826, ASTM E4, ISO 6892
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Universal Testing Machine with Pipe Ring Tension Fixture comply with?
A1: The Universal Testing Machine with Pipe Ring Tension Fixture is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Universal Testing Machine with Pipe Ring Tension Fixture be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
This apparatus is designed per GB/T 18997.1-2020 "Aluminum-plastic multilayer pressure pipes - Part 1: Intermediate aluminum pipes with lap-welded aluminum layer" and related pipe standards for the "ring radial tension" test. It consists of an electronic universal testing machine and a dedicated ring radial tension fixture. The fixture is a precision-machined alloy-steel assembly of two semi-circular (C-shaped) halves hinged together by pins; a pipe-ring specimen is slipped over the two halves, and as the moving crosshead rises the halves spread radially and pull the ring apart. The load cell records the maximum ring radial tension (in N). It is used to determine the ring radial tensile strength of aluminum-plastic composite and plastic pipes.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• High measurement accuracy with stable repeatability
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| System | electronic universal testing machine + ring radial tension fixture |
| Common frame capacity | 10 / 20 / 50kN |
| Machine accuracy class | Class 0.5 |
| Force range | 0.4%–100% FS |
| Indicating error | within ±1% |
| Test speed | 1–500 mm/min stepless |
| Fixture material | alloy steel (chrome-plated) |
| Applicable OD | configured per pipe size |
| Ring specimen length | as standard (typically 50mm) |
| Mounting | threaded adaptors to machine upper/lower crossheads |
| Result | max ring radial tension (N) |
| Standard | GB/T 18997.1-2020 etc. |
Standards
GB/T 16826, ASTM E4, ISO 6892
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Universal Testing Machine with Pipe Ring Tension Fixture comply with?
A1: The Universal Testing Machine with Pipe Ring Tension Fixture is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Universal Testing Machine with Pipe Ring Tension Fixture be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
