Product Application:

Gas pipelines are pressure transmission pipelines, and their medium is flammable, explosive, and toxic gas. After construction or maintenance, a gas tightness test must be conducted on the pipeline to ensure its safe operation. In gas tightness tests, pressure gauges or U-tube manometers are typically used to record pressure changes over 24 hours, calculate the actual pressure drop, and compare it with the allowable pressure drop to determine whether the test is qualified. The pipeline gas tightness tester is a new type of electronic detection instrument developed by analyzing and comparing traditional detection methods, the practical application of pressure recorder detection methods in engineering, and the commonly used gas tightness detection methods for gas pipelines, addressing their inherent weaknesses.

Product Features:

1. Built-in large-capacity memory for data storage, with each pressure or temperature channel storing 500,000 data points. Automatically records pressure data.

2. Built-in NB-IoT/4G communication module. During pressure testing, data is reported every 10 minutes, and reverts to the default factory setting of reporting once per hour during idle periods.

3. DYYPro pressure management software supports Milog3 USB format data, Milog4-4G server file format data, and Milog4-NB data based on the AEP platform.

4. A closed-loop pressure management system based on WeChat Official Account management, following the process: Party A creates a pressure task -> Construction team receives the pressure tester -> Starts pressure testing -> Real-time monitoring of pressure data throughout the process -> Submits pressure test results within 24 hours. The pressure testing process is standardized, transparent, and tamper-proof.

5. Excellent stability, high pressure accuracy, compact size, high integration, and easy installation. Paperless and low power consumption, powered by lithium batteries with a battery life of ≥3 years.

Product Advantages:

1. Automatically records pressure data, analyzes pressure data, and prints test reports.

2. On-site pre-assessment of qualification to avoid repeated inflation and pressure testing.

3. Integrated design of pressure and temperature sensors (PT100).

4. Pressure correction based on the gas equation to achieve temperature compensation.

5. Reports pressure and temperature data to the server once per hour.

6. Real-time observation of pressure data via mobile phone to promptly identify leaks and shorten the pressure testing period.

7. Provides gas tightness testing solutions for indoor low-pressure gas pipelines and outdoor medium-high pressure pipelines.

Milog4 Pipeline Gas Tightness Tester and DYYPro PC Version Pressure Management Software

Milog4 reports the pressure and temperature data of sealed pipelines to the server in real time; DYYPro software manages Milog4 pressure testing equipment information, creates pressure testing projects, associates pressure data, evaluates pressure testing results, and generates pressure testing reports.

The Milog4 Pipeline Gas Tightness Tester can convert pressure to standard temperature conditions, aligning more closely with the calculation formula provided by national standards. Mechanical pressure gauges cannot perform temperature compensation, and the thermal expansion and contraction effects of gases cannot be corrected.

The Milog4 Pipeline Gas Tightness Tester records data throughout the process, accurately capturing pressure fluctuations. Using the mathematical root mean square cumulative sum formula, it can detect whether there was any cheating behavior, such as manual air replenishment during the pressure testing process. Manually recorded hourly data can be greatly affected by human reading errors, insufficient pressure gauge accuracy, and human factors, which significantly impact judgment results.

The Milog4 Pipeline Gas Tightness Tester can transmit pressure, temperature, atmospheric pressure, and other data to a computer, generating reports in various formats. The pipeline gas tightness tester can store data for up to 5 years, enabling digital and electronic management of pressure testing records.