api self priming centrifugal pump
api self priming centrifugal pump
(OP)
does api support self priming centrifugal pumps or not.
We sent an inquiry to some pump manufacturer asked them to supply a self priming centrifugal pump as per API code.
some manufacturers deny and someone quote a simple pump with priming vessel. can we say that a priming vessel added to an ordinary type of pump is same as self priming pump or there are some differences.
The pump is for waste water delivery from a sump in a chemical plant.
We sent an inquiry to some pump manufacturer asked them to supply a self priming centrifugal pump as per API code.
some manufacturers deny and someone quote a simple pump with priming vessel. can we say that a priming vessel added to an ordinary type of pump is same as self priming pump or there are some differences.
The pump is for waste water delivery from a sump in a chemical plant.





RE: api self priming centrifugal pump
ordinary pump with priming vessel requires a foot valve.
A true self priming pump does not need a foot valve.
What do you need a API 610 pump for waste water? It is not high pressure , not high temp.
RE: api self priming centrifugal pump
IT WILL BE INSTALLED IN HAZARDOUS AREA IP55 EEXD IICT4 CLASS F
THANK YOU
RE: api self priming centrifugal pump
EEXD IIC T4 is hazard area specification for the motor.
RE: api self priming centrifugal pump
is that possible?
RE: api self priming centrifugal pump
All you need to worry about with the Haz Location is the motor; it must comply.
RE: api self priming centrifugal pump
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: api self priming centrifugal pump
Best regards
Morten
RE: api self priming centrifugal pump
Ok, probably a bit harsh - but it was stated there was no self-priming API but ignored.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: api self priming centrifugal pump
Please let me to correct my question.
Is that possible to have an API 610 pump with self priming system for waste water?
If yes do you know some supplier?
Thank you
RE: api self priming centrifugal pump
You also need to decide whether you want vacumn self-primed, using a vacumn pump or air driven ejector or wet self-primed.
Can't help with a supplier - although it is not a difficult conversion.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: api self priming centrifugal pump
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It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: api self priming centrifugal pump
Not API 610 though - although that shough be self evident by now
Best regrads
Morten
RE: api self priming centrifugal pump
However my best experience was a customer insisting on a API pump for pumping flushing water to the toilet even though the pump is located in safe area. His reason being that this is a refinery and all the pumps are API specs..
RE: api self priming centrifugal pump
RE: api self priming centrifugal pump
One of the major things is for example nozzel load, it is much lower than what is usually specified in API 610. This is an example and there are many other deviations.
We still use self prime pump in refineires and petrochemcial plants even thoguh they are not follow api610.
RE: api self priming centrifugal pump
However I don't know of any company (my own included), that make them as standard.
So you are looking at a special pump which equates to high cost (assuming you can convince a company to make it for you).
RE: api self priming centrifugal pump
There is no designation in API 610 to cover self-primers. Again, the PUMP does not need to comply with API 610 due to anything in the attached spec; it is only the motor and it's enclosure that would have to comply with your spec.
There are hundreds of non-API pumps in every refinery; even in hazardous locations. Although in the past few years it has become fairly bloated with some questionable requirements, the true intent of API 610 is really to make certain that pump can handle and contain it's PUMPED FLUID safely at Conditions of Service (therefore no cast iron, nozzle stiffness requirements, mech seals in lieu of packing, etc.). This is not a concern for water.
The pump manufacturers noted above are very reputable and have many, many installations in refining/petrochem facilities. Godwin makes a great one, but usually for rental (they were just bought by ITT/Goulds group). Also Gorman-Rupp makes a very fine self-primer. Just find the rep for those manufacturers in the town you're looking at, and they will be able to give you Installed List in refineries/chem plants that will satisfy your customer.
I can't recall your specs, but you might also look at a diaphragm pump that can be operated by air and doesn't need a motor. Plenty of good reps will be able to build an entire package for you if needed.