Compressed Natural Gas CNG pressure reduction systems play a crucial role in regulating gas pressure from high levels to safe levels before use in equipment and production lines. Regular maintenance and repair not only ensure stable system operation but also guarantee safety, save costs, and extend equipment lifespan.
Why is regular maintenance of CNG pressure reduction systems necessary?
Prevents gas leaks, reducing the risk of fire and explosion.
Ensures stable output pressure that meets technical standards.
Minimizes unexpected breakdowns, avoiding production interruptions.
Reduces major repair and equipment replacement costs.
Service and Maintenance Scope
We provide comprehensive services for CNG pressure reducing systems, including:
Overall inspection of the station and pressure reducing unit
Cleaning and calibration of primary and secondary pressure reducing valves
Inspection and replacement of valve diaphragms, seals, and gaskets
Assessment of the accuracy of pressure gauges and sensors
Addressing gas leaks, vibrations, and unstable pressure reduction
Repair or replacement of damaged components
Testing, calibration, and acceptance of the system after maintenance
Purpose of the procedure:
List in detail the equipment requiring maintenance.
List the details and sequence of steps during maintenance to avoid incidents affecting people and equipment.
Preparation steps before maintenance:
Ensure the plant has stopped using gas.
Disconnect the coupling cable of the tanker truck from the filling station.
Notes during maintenance:
Before disassembling the equipment, isolate both ends of the equipment and purge all the gas inside.
Prepare fire extinguishers at the maintenance site.
Service process
4. Check the loading manifold connected to the CNG tanker.
■ Check the female connector and coupling wire; Check the pressure gauge on the charging column; Check the coupling wire support; Check the grounding clamp.
