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Recent content by Fabian Antao

  1. Fabian Antao

    NRV on Pump Discharge line not lifting (100%)...

    Electrical cable going to NRV - looks like an electrically powered NRV, or is it just a electrical position switch on the NRV. Can you explain? It is an electrical position switch on the NRv. It's not electrically powered. It's a check valve. The hydralic oil, is to avoid the hammer, when the...
  2. Fabian Antao

    NRV on Pump Discharge line not lifting (100%)...

    We have three pumps. The size of the NRV is 600mm. The pumps are operated with Soft Starter. When first commissioned the pumps, the pumps operated fine. The NRV's lifted completely and there would be a pressure reading of 0.8 bar. Now into, 3 months of opeartion, the NRV's are not lifting...
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