Fault Finding & Multimeters vs Gas-main Usage & Stats

We recently re-filmed and updated our hugely successful Fault Finding DVD and now you can get the latest version in high definition on your iPhone and iPad. You can get access to all 21 chapters, totalling 77 minutes, showing you all about multimeters, how to carry out the electrical safety tests in full, how to test stats, fans, sensors and pumps, about diverters valves, expansion vessels, the sequence of operation and more. Suitable for new entrants, those moving from installing to repairs and existing breakdown engineers. Learn at your own pace. The chapters: 1. Testing Equipment 2. Multimeter Settings 3. Electrical Safety Tests 4. Earth Continuity Test 5. Short Circuit Test 6. Resistance to Earth Test 7. Polarity Test 8. Fault Isolation Procedure 9. Sequence of Operation 10. Pumps 11. Testing Switches 12. Water Pressure Switches 13. Flow Switches 14. Air Pressure Switches 15. Fans 16. Stats & Sensors 17. Diverter Valves 18. Domestic Heat Exchangers 19. Expansion Vessels 20. Water Hammer 21. Airing Cupboards
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The application allows the user to solve most of gas transportation problems, calculate the process of transporting natural gas (steam phase of LNG, LPG, associated petroleum gas, biogas) through a single-line pipeline. The graphical representation allows to instantly find the optimal solution and determine the influence of various factors on the gas transportation process. The application can help the user to get a calculation result that is sufficient for making an estimated engineering decision. Scope of application • Distribution and internal gas supply systems • Main-gas transport • Gas distribution and gas collection networks Key Features Using the application can be calculated: • gas flow rate in the pipeline for a given pressure drop and geometric characteristics of the pipeline • pressure drop in the gas pipeline (final or initial pressure) for a given flow rate and pressure drop • the length of the gas pipeline that provides a specified gas flow rate for a given pressure drop and diameter of the gas pipeline • the required diameter of the gas pipeline, which provides a specified gas flow rate for a given pressure drop and length of the gas pipeline • the blowdown time for stopped section of gas pipeline • the required power of the gas compressor, which provides the necessary degree of pressure increase for a specified natural gas flow rate. The compression process is adiabatic. The calculation can be performed for a single-or multi-stage compressor. The application uses: General Fundamental Isothermal Flow Equation (the basic equation of gas flow), American Gas Association Equation (AGA NB-13 method), Weymouth Isothermal Flow Equation, Panhandle A Isothermal Flow Equation. Panhandle B Isothermal Flow Equation, Institute of Gas Technology Isothermal Flow Equation. The user can choose one of them. The properties of the transported gas are determined on base of its composition. The user can select the gas composition from the previously entered ones, edit, add a new one, or delete the previously entered gas composition. The user can also select the pipe wall material and, accordingly, the absolute roughness value from the previously entered ones, edit, add a new value, or delete the previously entered material name and roughness value. For the convenience of calculations, the application provides a wide range of applicable units of measurement, as well as standard conditions for measuring gas flow. The accuracy of the calculation methods used in the application corresponds to or exceeds the accuracy of the methods for obtaining initial data available in engineering practice. The data entered by the user is saved and transferred between the calculation forms, which allows the user to quickly consider the problem of calculating the parameters of the gas pipeline from all sides. The results can be saved as a pdf file, as well as printed out. Terms of use: https://www.gas-main.info/#terms-of-use Privacy Policy: https://www.gas-main.info/#privacy-policy
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Fault Finding & Multimeters VS.
Gas-main

January 3, 2025