What is the typical pressure level in the damper (accumulator/tank) of a metering pump?
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We have always set it at around 75% of the pressure at the outlet of the metering pump on site; I think it must also be related to the viscosity of the medium Additional info: The metering pump used for the catalyst in our high-density polyethylene production sometimes operates with a stable flow rate, but at other times the flow is highly variable. There are no issues with the hydraulic oil circuit or the check valves at the inlets and outlets; we have yet to identify the cause. We hope experts can provide some guidance.
We charge the outlet accumulator of the methanol filling pump to 60% of the outlet pressure.
70%~80% of our factory’s hydraulic systems are…
The pressure of the accumulator is determined based on the pressure in the pump chamber; it is generally sufficient to have it 1-2 kilograms higher than the pressure in the sealed chamber.