Re: Electric Boiler Feed Water pump

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Posted by james hanna on December 13, 2001 at 09:07:31:

In Reply to: Re: Electric Boiler Feed Water pump posted by james hanna on November 19, 2001 at 06:16:27:

I contacted customer about these issues with several recommendations . One being to check spring load when installing mechanical seal , they contacted the seal supplier ,who told them they were loading the mech. seal spring to lightly for this application due to the loss of spring tension due to heat from pump .

james hanna CAV

: : : Question???
: : : Is anyone out there using varible speed drive on their Electric Boiler Feed water pumps ? We have one that is always blowing the mechanical seals.
: : : The main Boiler Feed water pump is steam driven and we don't seem to have a problem with it. Is anyone else having more trouble with their Electric Driven Boiler Feed water pump seals.
: : : Thanks
: : : jameswhanna CVA
: : : Certified Vibration Analyst
: : : e-mail

: : Are your seals rated for the temperature at which they are running? also are the cooling lines clear I had a similar problem and put small 5 micron cartridge filters on the cooling lines I havn't had a seal fail since

: Good morning :
: yes the seal are rated for high temperature
: There is a flush line comming from center of casing going into top of mech seal area ,but there is no type cooling or no type filter . I will foward this infroamtion to my customer
: Thanks
: james hanna cva
: certified vibration analyst

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