Hi Freddy do u have indonesian number? May we can solve ur problem. Thanks Best regards, Victor Dragono 081802057241...
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decadueck
decadueck@...
Apr 11, 2013 3:23 am
I have a hydro system installed at my cabin, but we can't seem to get enough power from it. We have roughly 300 ft of head, 500 ft of 2 inch pipe and a 3/8...
471
Jacques
jchaurette
Apr 11, 2013 5:19 am
I think this is not the best forum for you to get help. I recommend this forum: http://tech.groups.yahoo.com/group/microhydro/ Jacques ... enough power from...
472
freddy_marpaung
Apr 17, 2013 2:54 pm
Dear All, I need some help to find estimation price of high efficiency motor (85 percent above) with specification above, if somebody in this forum can help me...
473
Juan Carlos Zutta Ort...
juanzutta@...
Apr 17, 2013 4:59 pm
Hi, you can find this info in http://www.weg.net/ you can chose motor and see all information about. Regards ... Hi, you can find this info in ...
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freddy marpaung
freddy_marpaung
Apr 18, 2013 2:45 am
Dear Mr. Juan Carlos Zutta Ortega, Thank you very much for your feed backabout my first question "motor high efficiency", In 2nd question i want to find the...
475
Jacques
jchaurette
Apr 22, 2013 6:06 pm
Hello, some of you may be interested in this. Here is a re-make of a presentation I gave to the Society of Piping Engineers and Designers in Calgary, March 27,...
476
mastsudipta
Apr 25, 2013 12:22 pm
Dear all, Kindly help me in solving the following problem: Preface: There is a water cooled chiller which is used to send the chilled water to 15 AHUs. Each...
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Jacques
jchaurette
Apr 25, 2013 12:51 pm
Don't you have a thermostat in each one of the room? Jacques...
478
mastsudipta
Apr 25, 2013 2:44 pm
yes we have...
479
freddy marpaung
freddy_marpaung
Apr 26, 2013 2:41 am
 Dear Matsudipta, Does your AHU equipped with inverter & three way valve in chill water in ? and for the chiller, it is equipped with integrated part load...
480
hadi.khayyamian
Apr 30, 2013 8:22 pm
Hi all, my question: What is the meaning of the Head, and RPM value in the nameplate of the pumps. Does it show the BEP of the pump performance? or ... Also I...
481
Jacques
jchaurette
May 1, 2013 10:51 pm
Hadi, this should be the rated conditions, that is the flow and head given to the supplier with which he selects the pump. He will try to find a pump that has...
482
Juned Ansari
firdousdream001
May 6, 2013 11:57 am
Dear members, What will be the effect on input power of a motor (coupled to a pump) when the pump gets deteriorated in performance? What will happen to motor...
483
S. L. Abhyankar
sl_abh
May 7, 2013 12:14 pm
Dear Mr. Juned Ansari, Efficiency of worn out pump will certainly be poorer. Effect of that on the efficiency of motor will depend upon the margin previously...
484
pumpdoc88
pumpdoc88@...
May 11, 2013 5:00 am
... Head refers to the maximum pressure the pump can develop. RPM is the most eddexient speed for the pump. 6bar is roughly 90psi. Roughly double the amount...
485
pumpdoc88
May 11, 2013 5:01 am
Freddy, Have you considered using amperage to gauge effeciency? The harder a motor is working, the higher amps it pulls. Voltage and frequency are constants so...
486
pumpdoc88
May 11, 2013 9:40 pm
Horrible spelling of the word "effecient." Apologies. Also, add inlet pressure to head to get pump output. I didnt think i had made that clear. Mark...
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Jacques
jchaurette
May 12, 2013 1:49 pm
Great photos. Thanks. Jacques ... pressure to head to get pump output. I didnt think i had made that clear....
488
pumpdoc88
May 12, 2013 1:49 pm
Freddy, Have you considered using amperage to gauge effeciency? The harder a motor is working, the higher amps it pulls. Voltage and frequency are constants so...
489
Jacques
jchaurette
May 12, 2013 9:44 pm
Hello everyone, I have re-made my presentation to SPED on March 27 of this year. I thought it would be better with sound as static images just doesn't cut it. ...
490
Jacques
jchaurette
May 13, 2013 12:35 am
Hi Mark, great photos you sent, where do they reside now? Tell us a bit about yourself, I gather you are a pump technician, what types of pumps do you deal...
491
pumpdoc88
May 13, 2013 11:26 am
Hi all, my name is mark and i am 24 years old. I work full time with a plumbing company in new york city and i specialize in pumps. I have six years of...
492
smith003@...
jfuston@...
May 13, 2013 5:52 pm
I realize this may not be the ideal forum for this but I spent the last 5-6 hours Googling and am now overwhelmed with pump related jargon and looking for an...
493
smith002@...
May 13, 2013 5:53 pm
I realize this may not be the ideal forum for this but I spent the last 5-6 hours Googling and am now overwhelmed with pump related jargon and looking for an...
494
Jacques
jchaurette
May 13, 2013 7:56 pm
Hi PGT, 1. no, only for liquids; 2. Peristaltic pump is only for viscous liquids; 3. I think you need a compressor, doubt if you will ever get one that small. ...
495
pumpdoc88
May 16, 2013 3:41 am
Maybe two small vayne type pumps in series?...
496
smith002@...
May 16, 2013 4:52 pm
Thanks for the response, Gents. I am humbled that you took the time to reply. Jacques - I was reviewing the following article on Springer Reference... ...
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Jacques
jchaurette
May 16, 2013 4:57 pm
I think that peristaltic pumps were not initially developped for gases, there main use is for viscous fluids. They do come in a variety of sizes some very...
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Victor Dragono
dragon_vic
May 17, 2013 11:39 am
Hi guys, Just want to share about peristaltic pump (ppump) pumping liquid consist of gas. I will use a brand name of the pump for this. I have application pump...
