1. Unlock and remove chains from inlet/outlet valve wheels and open both valves full.
2. Open air cock and expel air from line and pump while checking for any leaks
3. Turn the shaft…
Centrifugal pumps are designed to pump liquids not gases. Any centrifugal pump (even a self-priming pump) will not start pumping unless at least the first stage (such as in a multistage…
H(pipe loss)= I assumed it is 1m, pipe total length is 10m, Q=4.8kg/h, one non-return valve, few elbows, and one pressure-controlled valve).
H(velocity)=H(deliver velocity)-H(sour…
As a mancufacuter, we received many inquiries about centrifugal pump, but also we found that many customers don't know what are the specification means about the pump they need.
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Determining what material will be pumped - i.e., chemicals, clean water, trash water, sewage - will lead you to the type of pump you need:
- Most general-purpose dewatering pumps ar…
We always meet some pretty intelligent customers, but others are not exactly engineers. This is why they call on us for pump sales, service and repair. But we always like it when our cu…
1.Always follow the maintenance schedule in the owner's manual. Also check manufacturer recommendations for approved chemical applications.
2.Make sure the pump has proper mounting or frame…
When the inlet pressure of a water pump falls below pump design specifications, tiny vapor bubbles can form in the water around the eye of the impeller. When the water containing these bubbles is…
Over time as the packing is subjected to continual heat and pressure through normal use, lubricant will be forced out of the packing material. The life of the packing material can be exte…
There could be several factors:
1. Is there enough water? Check to ensure that there is enough water present in the tank to allow safe pumping; the Control System shuts the water pum…
