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Thread: Help with Danfoss AKV valves
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11-04-2014, 01:44 PM #1
Help with Danfoss AKV valves
Hi everyone, In my search for a Danfoss electronic expansion valve the Selection chart shows 2-possible choices. There is a heading stating "VALVE LOAD" . Under this heading for each is listed one with a rating of 78.1% the other choice 49%. I'm not sure I fully understand this aspect to make the correct choice. I have included a picture.
Thanks too all.
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11-04-2014, 05:22 PM #2
Re: Help with Danfoss AKV valves
Select your valve to the correct capacity Kw as you would normally. I think the valve load is the expected percentage that valve will open to suit the given capacity. Depending on the control you are using the valve load/drive usually goes up and down to maintain a steady superheat.
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11-04-2014, 10:12 PM #3
Re: Help with Danfoss AKV valves
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14-04-2014, 07:03 PM #4
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15-04-2014, 05:10 AM #5
Re: Help with Danfoss AKV valves
Ken,
You can also put in conditions your plant may run in Danfoss Directcalc.
This can show how valve reacts for your situations, which can also assist with the selection of orifice size.
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17-04-2014, 06:17 PM #6
Re: Help with Danfoss AKV valves
Oh Ok Ranger, I just got a call from Danfoss tech support and they helped. Seems the selection calc I Dl from them was obsolete.
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17-04-2014, 09:28 PM #7
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05-05-2014, 08:26 PM #8
Re: Help with Danfoss AKV valves
Sorry, It's been awhile but they suggested the Valve rated 49%. Hooked me up with some new literature. I'm just getting started in this case controller stuff. New DOE stuff has us lookin for ways to save kW's.
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05-05-2014, 09:36 PM #9
Re: Help with Danfoss AKV valves
Thanks for update