Results 1 to 8 of 8
Thread: Ammonia pump down procedures
-
17-03-2014, 02:06 PM #1
improving poster
- Join Date
- Feb 2014
- Location
- USA
- Age
- 37
- Posts
- 23
- Rep Power
- 0
Ammonia pump down procedures
Hey,
Wanted to start a thread about getting ammonia out of a piece of equipment for service. Most guys I talk to talk about "pump down" meaning connecting the section to be serviced to the low side and have other compressors pull the NH3 out. But what if it is a single compressor system and it can't be pumped down?
-
17-03-2014, 04:04 PM #2
VIP Poster
- Join Date
- Dec 2008
- Location
- Portugal
- Age
- 48
- Posts
- 1,020
- Rep Power
- 19
Re: Ammonia pump down procedures
Purge it to a water vessel.
To make progress is never good enough, I want to do better and better and better
-
17-03-2014, 06:56 PM #3
Moderator
Site Moderator : and general nice guy
- Join Date
- Jan 2006
- Location
- Croatia
- Age
- 68
- Posts
- 2,263
- Rep Power
- 31
Re: Ammonia pump down procedures
Hi.TF12
just curious ... a piece of equipment for service is ....
Originally Posted by TF12
Best regards, Josip
It's impossible to make anything foolproof because fools are so ingenious...
Don't ever underestimate the power of stupid people when they are in large groups.
Please, don't teach me how to be stupid....
No job is as important as to jeopardize the safety of you or those that you work with.
-
18-03-2014, 12:14 AM #4
improving poster
- Join Date
- Feb 2014
- Location
- USA
- Age
- 37
- Posts
- 23
- Rep Power
- 0
Re: Ammonia pump down procedures
A compressor package
Ammonia chiller skid
And aren't there limitations on how much you dissolve in water?
What do you do with the water?
-
18-03-2014, 01:27 AM #5
VIP Poster
- Join Date
- Dec 2007
- Location
- australia
- Posts
- 3,357
- Rep Power
- 39
Re: Ammonia pump down procedures
Do you have any restrictions on ammonia, water solutions on this site? Originally Posted by TF12
The more water you use the likelyhood of smell is reduced.
If you used an old 44gallon drum or similar,it could be moved to somewhere suitable on site & discarded.
We use a small transfer compressor, so don't have to worry.
If you have another NH3 system close you could connect a hose to it to empty package.
-
18-03-2014, 12:40 PM #6
VIP Poster
- Join Date
- Dec 2008
- Location
- Portugal
- Age
- 48
- Posts
- 1,020
- Rep Power
- 19
Re: Ammonia pump down procedures
More or less 50% - 50% in volume with the NH3 in liquid state Originally Posted by TF12
You shall neutralize the hydroxid of ammonia since is alcalline solution with an acid solution to get PH=7.To make progress is never good enough, I want to do better and better and better
-
18-03-2014, 11:38 PM #7
improving poster
- Join Date
- Feb 2014
- Location
- USA
- Age
- 37
- Posts
- 23
- Rep Power
- 0
Re: Ammonia pump down procedures
Tell me more about this transfer compressor. You mean to pump to another vessel like a recovery machine?
-
19-03-2014, 07:52 AM #8
VIP Poster
- Join Date
- Dec 2007
- Location
- australia
- Posts
- 3,357
- Rep Power
- 39
Re: Ammonia pump down procedures
[QUOTE=TF12;293734]Tell me more about this transfer compressor. You mean to pump to another vessel like a recovery machine?[/QUOTE
Yes we ave made our own.
One is a large car or truck air con compressor belt driven.
The other a larger unit with suction trap. Both single phase motors.
Yes both used for ammonia, regular oil changes. Larger unit o rings changed to neoprene.
Just use ammonia hoses to transfer to other part of system like liquid receiver.
