Doseuro B 125N-8 - User Manual

Questions and Answers

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Stephanie PerezAug 22, 2025
How to reduce excessive noise from my Doseuro Water Pump?
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  Timothy BautistaAug 22, 2025
  Excessive noise in your Doseuro Water Pump can stem from several causes. First, check for air entering the head by verifying the suction pipe, junctions, seals around valve stems, and instrument connections. If air enters through the stuffing box, adjust or replace it. Another cause may be foreign material inside the valve, so inspect the valve units and clean or replace components if necessary. Also, excessive lifting of valves may cause noise, so replace the worn parts. Noise can also come from the safety relief valve or other accessories in the delivery piping. A quick closing of a valve, solenoid valve, or cock will produce a water hammer. A pulsation dampener before the back pressure valve, or a different type of valve may be requested.
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Michael MurphyAug 31, 2025
Why is oil leaking through the filler and drain caps of my Doseuro B 125N-8?
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  Tammy ParksSep 1, 2025
  If you notice oil leaking through the filler and drain caps of your Doseuro Water Pump, it's likely due to loose caps or damaged gaskets. Replace the gaskets.
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charles96Nov 10, 2025
What to do if my Doseuro Water Pump has low delivery pressure and flow rate?
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  owensjuanNov 10, 2025
  If your Doseuro Water Pump has low delivery pressure or a low flow rate, several factors could be responsible. Start by checking for a clogged suction system by cleaning the suction filter and inspecting the suction piping and feed tank for obstructions or partially closed valves. Also, examine the safety relief/vent valve for leaks; if leaking, switch off the pump and check it. Ensure the pump is completely primed, respecting the NPSHr value, and consider installing a suction dampener if there's an air bubble in the suction pipe. Verify the motor is correctly connected according to the motor plate, and inspect the pump valves for dirt, cleaning or replacing components as needed. Other potential issues include oil leaks through loose or damaged filler and drain caps, damaged piston seal ga...