Drick WDWG Microcomputer-Controlled Pipe Ring Stiffness and Ring Flexibility Testing Machine
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | WDWG |
| Instrument Type | Hydraulic Universal Testing Machine |
| Max Test Load | 20 kN |
| Accuracy Class | Class 1 |
| Force Measurement Range | 0.4–20 kN |
| Force Indication Error Limit | ±1.0% of reading |
| Compression Speed Options | 2, 5, 10, 20, 50 mm/min (compliant with GB/T 9647 and ISO 13968) |
| Testable Pipe Diameter Range | 20–800 mm (customizable) |
| Power Supply | 220 V ±10%, 50 Hz |
| Host Weight | ~800 kg |
| Operating Environment | 10–30 °C, RH ≤80% |
Overview
The Drick WDWG Microcomputer-Controlled Pipe Ring Stiffness and Ring Flexibility Testing Machine is a purpose-built hydraulic universal testing system engineered for standardized mechanical evaluation of thermoplastic, thermoset, and composite pipes under controlled radial compression. It operates on the principle of ring compression deformation measurement in accordance with internationally recognized test standards—including GB/T 9647 (Chinese National Standard), ISO 13968 (Plastics pipes — Determination of ring stiffness), and ASTM D2412 (Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading). The machine applies axial compressive force to a pipe segment supported on two parallel steel plates, measuring the resulting deflection and load response to calculate ring stiffness (kN/m²) and ring flexibility (% deformation at specified load). Its hydraulic actuation system ensures high-force stability and low-speed precision, while the embedded microcontroller architecture enables deterministic real-time control without PC dependency during test execution.
Key Features
- Hydraulic loading system delivering up to 20 kN maximum test force with Class 1 accuracy per ISO 7500-1 and GB/T 16825.1
- Dual-mode operation: standalone embedded control via integrated MCU (MaxTC261 controller) and PC-integrated networked operation via 10/100 Mbps Ethernet interface
- Five programmable compression speeds (2, 5, 10, 20, 50 mm/min) compliant with mandatory rate requirements in GB/T 9647 and ISO 13968
- Modular test fixture design accommodating pipe diameters from 20 mm to 800 mm; optional custom tooling available for oversized or non-circular cross-sections
- Real-time data acquisition at ≥100 Hz sampling rate, with automatic zero-point compensation and thermal drift correction algorithms
- Onboard firmware upgradability via Ethernet—no hardware modification required for protocol or algorithm updates
- Rugged cast-iron frame with reinforced load train, designed for long-term dimensional stability under repeated 20 kN cyclic loading
Sample Compatibility & Compliance
The WDWG system supports rigid and semi-rigid thermoplastic pipes (e.g., PVC-U, HDPE, PP-R), fiberglass-reinforced plastic (FRP) pipes, and concrete-lined polymer composites. It accommodates standard test specimens per ISO 13968 (minimum length = 300 mm or 1.5×diameter, whichever is greater) and GB/T 9647 (length ≥ 300 mm, free ends squared and parallel). All mechanical and software functions conform to ISO/IEC 17025 general requirements for testing laboratories, and raw data logging meets GLP audit-trail prerequisites—including timestamped operator ID, environmental condition capture (temperature/humidity), and full parameter traceability. The system’s force calibration certificate is traceable to CNAS-accredited national metrology institutes.
Software & Data Management
The embedded MaxTC261 controller runs a deterministic multi-task RTOS with dual-channel analog input (load and displacement), enabling synchronized acquisition without jitter. The companion PC software (DrickTest v4.x) provides ISO 17025-compliant reporting templates for ring stiffness (kN/m²), ring flexibility (%), and flattening ratio. Data export supports CSV, XML, and PDF formats with embedded digital signatures. Audit trail logs record all user actions—including method edits, calibration events, and report generation—with immutable timestamps. Optional FDA 21 CFR Part 11 compliance package includes electronic signatures, role-based access control, and encrypted database storage.
Applications
- Quality assurance of municipal water and sewage pipelines prior to installation
- Batch release testing for HDPE corrugated pipes used in trenchless construction
- R&D validation of novel pipe wall geometries (e.g., spiral-ribbed, double-wall structured)
- Third-party certification testing per CE marking requirements (EN 13476 series)
- Comparative analysis of material aging effects on structural rigidity after UV/thermal exposure
- Verification of manufacturer-declared ring stiffness values for regulatory submissions
FAQ
Does the WDWG support both ring stiffness and ring flexibility testing per ISO 13968?
Yes—it executes both test modes using identical hardware configuration; ring flexibility requires additional displacement limit programming per Clause 6.3 of ISO 13968.
Can the system be integrated into an existing LIMS environment?
Yes—via RESTful API and HL7-compliant data export modules; integration documentation and SDK are provided with enterprise license.
Is third-party calibration certification included with delivery?
A factory calibration certificate traceable to CNAS is supplied; on-site ISO/IEC 17025 calibration services are available upon request.
What maintenance intervals are recommended for hydraulic components?
Hydraulic oil replacement every 24 months and seal inspection every 12 months under continuous operation; scheduled maintenance checklist is embedded in controller firmware.
Are custom test fixtures for non-standard pipe shapes available?
Yes—Drick offers engineering consultation and CNC-machined fixture fabrication for elliptical, square, or segmented profiles under NDA agreement.
