I'm used to pumping above sea level but I was called and asked a question what are some of the affects that would come into play at 5000' below sea level. In a mine.
Do you have to do anything special. Special pressure gauges? Motor problems to contend with or what?
Thanks
I need a list of supplier's of pump pontoon manufacturers I need to get some quotes for some applications and its been difficult to get anyone to quote a job without being paid first?
Can any of you help? Normally all I need is to send the weight of the pump and a dimensional data sheet and...
We have a customer who has a 50HP motor installed already.
We have an application that calls for a 75HP motor will this require new starters?
Thought!
What about motor's that are purchased 50HP with a 1.35 SF
will the original motor starter be acceptable?
Thought!
If you install 75HP motor...
Last person who called me said he picked heaters by taking the FLA of the motor and adding in the service factor.
Now that sounds find - but what about Starting Amps how does the heater compensate for that in rush and not blow?
Simple I know but a simple answer will make me more informed in...
Looking for a copy of File No. D-100 on Desity Data, Slury Water and Solids Pulp.
Last Issue I have in very poor shape and is a 60th generation (very blurry) 8-1-72.
Any help on where I can download a new fresh copy would be appreciated.
Thanks
Wayne
wlovison@toyopumps.com...
Let's assume I have three identical pumps but all operating at three different speeds. 1620 RPM, 1080 RPM and a low one at 360 RPM. I'm sure I could belt drive the upper two but the lowest one the drive would be odd looking and expensive.
Should I consider going to a 1200 RPM on the lowest...
We have a customer who did not follow Hydraulic Institute Standards for having a suitable length of horizontal straight run pipe prior to the suction inlet of the pump.
Therefore we are getting vortexing or a non-streamlined entry into the pump which sounds like cavitation or a crackling sound...
I have a 50HP 1775 RPM horizontal motor with Class H insulation. The motor nameplate is marked with a 1.0 S.F.
No where on the motor does it say its inverter duty designed. But according to MG-1 Section 31 no inverter duty motor will have anything but a 1.0 service factor on the nameplate...
The question is pretty cut a dry but I've always wondered why enclosed motor's such as these would not require a space heater to prevent possible condensation from forming within the motor core and stator areas? Wayne E. Lovison
service-parts@naglepumps.com
We have a need to enlarge the stator OD slot lamination area. We need to run some heavier insulated wire between the main core and the outer stator. Can one enlarge these slots? What problems could one entertain doing this?
Wayne E. Lovison
service-parts@naglepumps.com
Bakes and Dips I read about all the time. This covers the stator windings. But I've seen different coatings from time to time and I wonder if you have a motor that is rated for a VFD if the winding coating process is different?
I would assume (and I hate that word) that all VFD motors would...
Another issue I run into is megger readings. I don't have one and I've found many to be quite expensive. Are there any around that are fairly inexpensive as to the more costly ones?
Reading resistance (ohms) on a motor is OK for one test by the FAQ sheet indicated megger readings are really...
I learned a valuable lesson the other day. I'm not electrical but work with many issues related to it.
We have a submersible motor we use and it requires
that we take ohm readings to checkt the integrity of
the moisture sensors. I'm suppose to get 330k ohm
with a +/- 10% variance. Within...
How can you balance out the main incoming feeder lines?
I've seen 3-phase voltage swings many times when taking readings. Two always seem close but the third one is always different - why is that?
Just how critical is the voltage swings between these three leads?
Thanks Wayne E. Lovison...
We just experienced a failure of which everyone wanted to blame the lubricant. But I wanted to toss this out to see what feed back I'd get.
We have a micarta CG (plastic graphite impregnated) sleeve bearing that is being grease lubricated. The clearances are 0.010" on a side which is...
Does anyone have a view or something I can download and send to a customer explaining face-to-face bearing mounting?
I can't find a thing right now and I really have put this guy off a little too long and I'd appreciate some help. Just a small 2D or 3D view of a face to face bearing...
I've run into a predicament where a circumventing slot on the bottom of the shaft motor interfered with the installation of a Omega Coupling.
I've seen this slot on several motor's but never knew why it was there. It seems the slot is for a special type of coupling that is held in place by a...
I've been told that oil mist systems that vent to atmosphere are contaminates. I've also been told to install filters to prevent this.
Most oil mist industrial lubricants are petroleumn based and have additive packages to extend heat, load, and water life characteristics. Most petroleumn...
