Jockey Pump

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If it is running continuously then it isn't achieving the required system pressure, which means any of these:

• It is faulty
• It is undersized
• There is a leak in the system

Its neither of it! Its more than that!

Its what the jockey pump is there to do, which holds the answer to your question.

Yes, and yes.

Depends on the application. Which you fail to give us. Which is the reason for varying answers.

This is a mechanical Viagra device that goes in your shorts. Continuous working for 365 days is an unexpected bonerus.

The ones I am familiar with, for dry-pipe fire protection sprinkler systems, are powered up 100% of the time, but run only when they need to to keep the system pressure up. As above, if they are actually running all the time, or even very often, something is wrong.

It operates automatically by a pressure switch which starts the pump when pressure drops & stops when pressure reaches required level.

thanks all.thanks pnaban for solving my question.

Jockey pump has got the logic from hydro pnumatic tank or system pressure. Whenever the tank level falls or the system pressure goes down below the cut in value the pump starts and stops on the reverse logic. It is for maintaining system pressure which continuously decreases due to leakage. In case of actual requirement of pressurized water, jockey pump is not able to maintain the pressure and and flow other standby pumps start to give the required flow.