stand by

dear all,

What is a stand by of a pump?
is the automatic start? or is the stop of the pump in case of small flow?

 

....sorry mate, hard to really understand in those few words exactly what you want, but a standy pump is a pump that is NOT in regular use, it is to be used as either an extra pump or in emergency...it is plumbed in and ready ti use, but not in regular use....hope this helps.

 

If you rewrite exactly how you read it (eg. off a pump spec.) it would be easier to understand and reply.

 

Stand by could mean the pump is activated by a float switch, as long as there is no water the pump is on stand by . . . .

Cheers,
Angel

 

Stand by means "ready to use or deploy". With equipment it is often a backup system.

 

I'll look it up, stand-by...

-Tom

 

ok. three pumps was installed on board a boat, chief engineer told me to verify the stand- by pump; but i dont understand in what consist the "stand by pump ". What must I to do for verify it?

 

...again mate, your translation is not getting thru to us, can you quote directly what it says and we can then try to explain it in a different manner that may help you, ta, JOhn

 

Landlubber, I feel that if he quotes exactly what it says, it will be in Italian.

Maybe if it is written in Italian, someone in the forum who can better translate, can advise what the actual question is.

Poida

 

ok. three pumps was installed on board a boat, chief engineer told me to verify the stand- by pump; but i dont understand in what consist the "stand by pump " what must I to do for verify it?

 

I suspect he/she wanted you to test the stand-by pump and see if it was serviceable.

It may have been prudent to also check if it would automatically engage (start) when commanded to do so (again, automatically).

Perhaps you should ask the Chief for clarification.

-Tom

 

A stand-by pump starts automatically when needed, perhaps to take over from a failed pump or to pump out bilge-water when it gets above a certain level. When not required it is "standing by" - still connected to electrical power but not running. A common type of stand-by pump has a battery power supply and runs only if the main (duty) pump fails or loses power. The stand-by pump in a sewage system will run if the main pump becomes overloaded during a storm, or if the main pump is being serviced.

To test a bilge-water pump you would raise the float and ensure the pump turns on, and off again when you lower it.

A pump that is NOT a stand-by pump may be a cooling pump, or a pump for the head (wash basin or flush toilet), or even a fuel pump. So you need to eliminate the 2 pumps that can be started with a manual control; once you have located all 3 pumps it should be obvious which one is a stand-by.

 

I think he means to activate it by lifting the float lever to make sure it is functional.

 

jollyricard, you have 3 pumps. Describe them.

 

ok, i have following pumps :
fuel pump, bilge pump and ballast pump!!!!!