DVP.20 In-line caliper flaw detector (CLP)

16" - 20"
The DVP.20 is a heavy-duty In-Line Caliper Flaw Detector (CLD) specifically designed for comprehensive inspections of extra-large diameter gas and liquid pipelines. This powerful tool leverages advanced technology to deliver highly accurate measurements of a pipeline's internal diameter, enabling the detection and evaluation of potential flaws such as leaks, corrosion, and deformations.
Key Specifications:
  • Built for Extra-Large Pipelines: The DVP.20 boasts an increased length of 1235 mm (48.6 in) to navigate deeper within extra-large pipelines for thorough inspections.
  • Enhanced Durability: With a weight of 184 kg (405 lbs), the DVP.20 is built to withstand the demands of rigorous pipeline inspection operations in challenging environments.
  • Extensive Applicability: Similar to previous models, the DVP.20 can navigate pipelines with a minimum internal diameter of 75% of their outer diameter.
  • Superior Maneuverability: The DVP.20 maintains exceptional maneuverability with a minimum bend radius of 1.5 times the pipeline's outer diameter (1.5D).
  • Extended Operation: The DVP.20 is equipped for prolonged inspections, offering a maximum inspection time of at least 72 hours.
  • Long-lasting Battery Life: The low-frequency transmitter of the DVP.20 ensures uninterrupted operation for extended periods with a minimum battery life of 240 hours.
  • Exceptional Inspection Range: The DVP.20 can effectively inspect vast stretches of pipelines, covering a maximum distance of at least 100 km (62.1 miles).
Compatible Pipeline Characteristics:
  • Diameter: The DVP.20 is ideally suited for pipelines with an outer diameter of up to 530 mm. Refer to the manufacturer's specifications for the full range of compatible pipe sizes.
  • Environment: The DVP.20 can be deployed in pipelines transporting either gas or liquid.
  • Configuration: The DVP.20 seamlessly integrates with pipelines equipped with equal diameter T-junctions featuring grilles for smooth insertion and retrieval.
Operational Parameters:
  • Temperature Range: The DVP.20 operates effectively in a wide range of temperatures, from -20°C to +80°C (-4°F to 176°F).
  • Pressure Range: The DVP.20 can withstand pressure variations within pipelines, functioning within a range of 5 to 100 bar (72.5 - 1450 psi).
  • Minimum Gas Pressure: For gas pipelines, the DVP.20 requires a minimum pressure of 20 bar (290 psi) to operate efficiently.
  • Tool Speed Range: The DVP.20 can be calibrated to operate at various tool speeds ranging from 0.2 to 4 m/s (0.7 to 14 mph).
Recommended Barrel Dimensions:
For optimal performance and safe operation, the DVP.20 CLD is designed to be used with launcher and receiver barrels meeting the following specifications:
  • Launcher Barrel:
  • Length: Greater than 2400 mm (recommended minimum)
  • Diameter: 558.8 mm (outer diameter)
  • Inner Diameter: 530 mm (to accommodate the CLD)
  • Receiver Barrel:
  • Length: Greater than 2100 mm (recommended minimum)
  • Diameter: 558.8 mm (outer diameter)
  • Inner Diameter: 530 mm (to accommodate the CLD)
Benefits of Utilizing the DVP.20 CLD:
  • Enhanced Pipeline Safety: The DVP.20 empowers proactive pipeline maintenance by facilitating the identification and rectification of potential flaws, ensuring pipeline safety and longevity.
  • Streamlined Inspection Process: The DVP.20 offers a highly efficient solution for pipeline inspection, saving time and resources compared to traditional methods.
  • Unmatched Precision: The DVP.20 delivers highly accurate internal diameter measurements, enabling a thorough and reliable assessment of pipeline health.
  • Versatility: The DVP.20 is well-suited for various pipeline inspection tasks across diverse environments.
By incorporating the DVP.20 CLD into your pipeline maintenance strategy, you gain a valuable tool for safeguarding the integrity and operational efficiency of your extra-large diameter pipeline infrastructure.