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Join Date: Jul 2017
Posts: 1

Ebara HP Ammonia Pump Seal Water Leak Off

07/16/2017 8:00 AM

Hi All,

I need to know what is the use of the leak off line on the Ebara hp ammonia pump and how to use or when it has to be opened and when i can close back.

Thank you in advance.

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#1

Re: Ebara HP Ammonia pump Seal water Leak Off

07/16/2017 12:19 PM
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#3
In reply to #1

Re: Ebara HP Ammonia pump Seal water Leak Off

07/16/2017 4:22 PM

The diagram does not appear to represent a pump that uses seal water. The magnetic coupling črosses a welded barrier separating the motor fron the pump. There might be fluid usec for cooling, but there isn't any needed to seal a shaft for what is represented in the diagram.

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#4
In reply to #3

Re: Ebara HP Ammonia pump Seal water Leak Off

07/17/2017 12:24 AM

I wonder about that too. I have often seen low-temperature oil used as a sealing fluid in ammonia pumps, but water seems odd. (Unless maybe used to pressurize the area above the cable seal gland [??]). Other items in the drawing also remain unexplained.

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#2

Re: Ebara HP Ammonia pump Seal water Leak Off

07/16/2017 1:10 PM

What do the operator/ maintenance manuals have to say about it?

We need more information like, what is the model number of this pump? Ebara makes several different types of pumps.

I, myself would not play with anything until I know.

If and when in doubt, call Ebara,

US office 1-775-356-2796

Middle East & Africa office 44-1372-739-666

Asian office 81 (3)6275-5732

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#5

Re: Ebara HP Ammonia Pump Seal Water Leak Off

07/17/2017 11:28 AM

The original equipment manufacturer's Technical Helpline should always be the first source of information.

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#6

Re: Ebara HP Ammonia Pump Seal Water Leak Off

07/17/2017 1:52 PM
  1. Obtain the model and serial number of the pump
  2. Call Ebara customer service and ask them several questions about this pump, including the one you posed to this forum.
  3. Standby for their answers in response to your questions.
  4. Be prepared to restore the pump to new conditions based on what you are telling us here.

That should just about sum up what Ebara folks will recommend.

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