Extend the lifespan of the condensate pump using a pressure relief valve

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When setting the drive pressure for a mechanical pump, the correct approach is to make it 1-1.5 kg/cm2 (15-20 psig) higher than the back pressure. This is correct in most cases. But sometimes, to achieve the required displacement of the pump, it is necessary to set the drive pressure a bit higher. When the driving pressure is high, the downside is that it can easily cause wear on the intake valve. If the driving pressure is higher than the required value, it will cause severe wear on the intake valve, forcing an early replacement of the same. In this case, it is recommended to use a pressure relief valve or a pressure relief valve station. The pressure relief valve allows the drive pressure to be maintained at a set level sufficient to meet the pump’s displacement requirements, while also protecting the intake valve from wear. Additionally, when the application space is limited, it is recommended to use a pressure reducing valve station with a steam collection tube. During the process of pumping water, the steam collection tube supplies steam to the pump, thereby providing a buffer zone for it. This buffer smooths the operation of the entire device, reducing wear on the pressure relief valve.