Messages

1

Pumps, Wells, Tanks, Controls / Re: Pumptech CSV setup issues

« on: June 13, 2014, 10:22:45 AM »

Also, regarding pump cooling at low flow.. Franklin states that the 2hp motor I'm using does not require a sleeve up to about 86* water temp. I take it that the motor is efficient enough where heat produced is not a problem provided satisfactory ambient water temperature. As franklin does not recommend cycle stop valves, if the motor can cool itself, without sleeve, drawing 11.5 amps is it correct to say that its fine under lower load zero flow conditions?

It seems they contradict themselves regarding flow/cooling. At least on the 2hp Super Stainless series motors.

2

Pumps, Wells, Tanks, Controls / Re: Pumptech CSV setup issues

« on: June 13, 2014, 10:13:53 AM »

I agree that the CSV is working as intended and exactly why I purchased your product. Franklin does note that their product does not work with a dole valve.. I simply didn't know what a dole valve was or realize the similarity to CSV.

When I said industry standard I'm talking about the fact that almost every pump I've seen has a protection device on it. As admitted by yourself, most are not adjustable and/or compatible with CSV creating an opportunity to introduce a new product (cycle sensor) to the market.

If this is the case, it would save otherwise happy customers time, money and grief by simply adding a disclaimer or note on the CSV product page that it is NOT compatible with most pump protection devices. There is no negative result by saying this besides helping a customer from making a mistake. If anything, it could help cycle sensor sales. If this information was more readily available to me, I would have likely purchased your control with the CSV at the same time.

What is the warranty on the cycle sensor?

3

Pumps, Wells, Tanks, Controls / Re: Pumptech CSV setup issues

« on: June 11, 2014, 12:53:40 PM »

That's very unfortunate as now I have an expensive control that's useless. You might want to be more forthcoming regarding incompatibility with industry standard companion products. A disclaimer or note on the product page would have saved me over double the price of your valve. The only time I've seen this mentioned is now, within the literature of your own control solution obviously designed to walk around the issue.

4

Pumps, Wells, Tanks, Controls / Pumptech CSV setup issues

« on: June 11, 2014, 11:15:54 AM »

I have a 2 hp 35 gpm pump sitting in a cistern, 20 gallon(total) PT set at 55psi, csv16, pressure switch at 60-80 and 5 hydrants. I just installed the system but when trying to calibrate the pumptech I'm having issues.

Main windings:
1 hydrant open: 10.5A
2 hydrants open: 11.5A (not a typo)
3 hydrants open: 10.5 A (can only hold 40psi)
All closed. Refilling PT: 5-6A
The pumptech trips an overload at 125% snapshot value and under load at 75%. Manual says to take snapshot of load at full water flow. When I do this everything runs fine until the hydrants are shut and CSV is filling the PT at 5gpm. The motor only draws about 6A and trips underload protection.

No adjustments on pumptech. What to do?

5

Pumps, Wells, Tanks, Controls / Re: Help me size my CSV/Pump/Motor

« on: May 13, 2014, 10:12:31 AM »

10-4 couldn't get my head around how that stacked up.

Thanks again.

6

Pumps, Wells, Tanks, Controls / Re: Help me size my CSV/Pump/Motor

« on: May 12, 2014, 07:45:30 PM »

Cary, I'm awaiting quotes for the pump etc and I think I'm going to try to swing the money for a CSV3B2T.

Just wanted to double check our phone discussion:

Pump to hydrant outlet: 12'
Friction loss(pump to outlet): 36' @ 30gpm (300' 1.25" poly)
Desired pressure @ outlet: 50psi/115' (or should I fudge this to 60psi?)

12+36+115= 163' or 55psi total

Pressure switch (50psi @ outlet):
Friction loss: 10psi over 300'

50psi cut in with 70psi cut out = 60psi average at switch = 50psi average at outlet

Thanks again. You have been tremendously helpful.

7

Pumps, Wells, Tanks, Controls / Re: Help me size my CSV/Pump/Motor

« on: May 09, 2014, 04:09:25 PM »

Please bare with me here..

It looks like sticking a plastic CSV in the cistern, submerged, after the check valve, would solve these issue as it seems I'm stuck in the middle of two options neither of which are without compromise.

The literature regarding the plastic valves say they are not suggested to be used in water with algae/dirt. The well does produce some visual silt occasionally(which may clear the more we use it) and the concrete cistern will certainly have algae growing in it yet you recommended it for this application?

What problems exactly do these conditions promote? Does mounting it submerged negate these concerns? What might I see for life expectancy?

8

Pumps, Wells, Tanks, Controls / Re: Help me size my CSV/Pump/Motor

« on: May 09, 2014, 01:08:14 PM »

I just realized with our cisterns refill rate I only have capacity to irrigate one drip plot at a time either way. I'm thinking adding two valves and a controller to the arena sprinklers is a better solution than compromising efficiency 90% of the time.

Would downsizing to a 25gpm pump and 1 or 1.5hp motor allow me to run the CSV1A?  I'll want at least 25gpm @ 50psi from the hydrants. Will that combo be good for it?

Thanks again for all the help.

9

Pumps, Wells, Tanks, Controls / Re: Help me size my CSV/Pump/Motor

« on: May 09, 2014, 10:44:57 AM »

Another question I forgot to ask was regarding the time spent drip irrigating. By far, the most frequent condition the pump will see will be the 16gpm @ 12psi during growing season. This equates to a few hours run time 2-3times per week. Is this 30+gpm 1.5hp setup going to be too overkill and inefficient?

10

Pumps, Wells, Tanks, Controls / Re: Help me size my CSV/Pump/Motor

« on: May 09, 2014, 09:58:10 AM »

Thank you for the prompt response. Due to my plans for mounting the tank,csv and pressure switch in a 4'x4' below grade insulated service pit I was concerned about the plastic valves weeping and additional moisture build up being an issue for the switch. I do have about a foot of sand in the pit but feel it would be better not to introduce additional moisture.

Would a CSV2W be a suitable replacement for the plastic valves you mentioned? I realize the minimum tank fill rate will be higher at 5gpm and I have not yet checked dimensions but I was thinking I could theoretically use a tank with a 5-10 gallon draw down and still maintain decent pump run times when using water for short periods. Is there something else I'm missing?

Also, what quality tank brands do you recommend?

11

Pumps, Wells, Tanks, Controls / Help me size my CSV/Pump/Motor

« on: May 09, 2014, 12:05:29 AM »

I realize this may be trivial here but it seems every supply house I ask about a CSV, look at me like a deer in headlights.

I just installed a 2800g cistern fed by our well. The system will be for filling five 1000gallon stock tanks, arena dust control and supplying a few drip irrigated garden plots.

Pump sits 9' below grade and all piping is 1.25" poly trenched 3ft below grade. Tank and manifold will be located in a 4'x4' concrete pit at the same level as piping. Runs are pretty much straight shots. Longest one about 300' with 3-4 elbows. All points of usage except sprinklers will be through Woodward Y1 frost free Hydrants with 1" inlets and 3/4" hose outlets. (I'm told they flow 28gpm @ 50psi)

Zones:
1) Arena: 120'x220' covered by two Sime K1 sprinklers. (http://bigsprinkler.com/products/sime-k1-sprinkler) Roughly 25gpm @ 50psi will do the trick if I use one sprinkler at a time. 36gpm @ 44psi does the job slower but running both would be very convenient. 

2)Stock tanks: 1000 gallons each. I let them run low, drain, clean and refill at one time. They are not on float valves. (Faster the fill time the better)

3)Drip Irrigation: This years plot will only require 16gpm @ 12-15psi. Each irrigation time is expected to be 1.5-2hrs. Future plots will mimic this one in regards to demand. I expect at least one more plot so demand would double if I wanted to irrigate both at once. Although, being split into zones and different crops. I dont see a need to irrigate both at the same time.

4) A single hydrant will be available for general usage. (washing horses, cleaning things etc)

When looking at 35gpm Franklin E series and 4" high capacity pumps coupled to 1.5hp motors it appears they sit nicely in the efficiency range around 30gpm @ 50psi however I'm not sure if I'm calculating head correctly or for the CSV? I'm confused considering the CSV derating the motor and if I should go with a higher/lower hp motor.

Here is a link to franklin/schaefer pump charts: http://www.franklin-electric.com/media/documents/MS2009_Schaefer_Catalog_04-14_WEB.pdf

I would really appreciate help in correctly selecting a motor/pump in conjunction with the CSV for my application. I'm very familiar with VFD's in other industries but think its overkill and an unnecessary level of complexity for this systems usage. But hey, if I need one, I need one.

Thank you in advance for any help.