Oasis Montana Inc.
Renewable Energy Supply and Design
406-777-4321or 4309
(877-627-4768 toll-free order line)
Tech. Support: 1 (406) 777-4321 or 4309
e-mail: info@oasismontana.com
Home Page: www.oasismontana.com

Visit us on the web for product and project information!
For grid-tied power systems, www.grid-tie.com
Solar water pumping:  www.PVsolarpumps.com
Non-electric gas appliances, www.LPappliances.com
Efficient and DC appliances, www.eco-fridge.com
And our main page at www.oasismontana.com


November 2007 Newsletter Navigation 
Page 4:  Solar Water Pumping

index page 1 page 2 page 3 page 4 page 5 page 6
Oasis Montana Site Map
 

Lorentz solar powered stock watering systems

Lorentz solar water pumpingIt’s never too early to start planning your spring or summer stock watering system and the Lorentz line of super efficient solar-powered pumps can help you get it done cost effectively. From their surface mounted centrifugals to submersible helical rotor pumps, Lorentz has a pumping solution that will fit almost every need and budget. For shallow well applications (less than 70’ deep) their amazing PS150-Centric submersible centrifugal pump can deliver high volumes of water with a small solar array. For deeper applications, the Lorentz PS200/600/1200 submersible helical rotor pumps can provide lower volumes of water from depths up to 760’. These helical rotor (or progressive cavity) pumps are positive displacement units which means that they will pump some water even in low light level conditions. They have brushless motors, but no problematic diaphragms so they don’t require any regular maintenance; that means that you can just set it and forget it. This will save you a lot of time, money and maintenance over the life of the pumping system. If something should go wrong, all of the electronics for the Lorentz submersible pumps are located in the above-ground control box which makes trouble-shooting and repair/replacement a lot easier than having to pull the pump. All of the Lorentz submersible pumps and controllers are covered by a 2-year manufacturer’s warranty against defects in material and workmanship except the PS150 Boost pumps which have a 1 year warranty. Please look over these Lorentz sample submersible pumping system below and let us know if any of them will meet your needs. If not, give us a call with the details on your particular pumping situation and we will design a system just for you.

Lorentz PS150 submersible centrifugal (shallow well, high volume)
1 Evergreen Spruce ES-190-RL 18V 190W solar module
1 single module top-of-pole mount structure (2” ID SCH40 steel pipe required)
1 15’ array-to-controller wiring kit
1 Lorentz PS150 pump controller
1 Lorentz CSJ5-8 submersible centrifugal pump
1 Lorentz low water sensor
1 float switch

Equipment total = Please call for pricing.
On average this system will produce ~2,100 gpd when pushing against 50’ of head with 5 hours of full sun per day.

Lorentz PS1200 submersible helical rotor (deep well, low volume)
4 Evergreen Spruce ES-190-RL 18V 190W solar modules
1 four module top-of-pole mount structure (4” ID SCH40 steel pipe required)
1 15’ array-to-controller wiring kit
1 Lorentz PV disconnect & junction box
1 Lorentz PS1200 pump controller
1 Lorentz HR-03H-2 submersible helical rotor pump
1 Lorentz low water sensor
1 float switch

Equipment total = Please call for pricing.
On average this system will produce ~600 gpd when pushing against 760’ of head with 5 hours of full sun per day.

Note: the PS600 & PS1200 systems can be powered by a 120/240 VAC generator or utility power during cloudy periods by using the Lorentz AC power pack.

Here’s the chart that shows the cost versus performance of four more Lorentz pumping systems; let us know if any of them will meet your needs. All systems come with detailed wiring diagrams.

Lorentz system description Head (feet) Volume (gpd)
PS150 Boost-125 surface mounted rotary vane 100 600
PS600 BADU Top12 surface mounted centrifugal 33 4,200
PS200 submersible helical rotor 130 1,100
PS600 submersible helical rotor 400 640

Head values listed include static and drawdown levels along with friction loss. Volume values shown assume a minimum of 5 full sun hours per day and are averages (i.e. your situation may vary somewhat). Prices shown do not include freight. Visit www.pvsolarpumps.com/water_pumping_questionnaire.html and answer the questions so
we can quote a system specific to your project needs….we basically need the following information:

  • What is the watering application? Domestic use, stock, irrigation, etc.?

  • How many full-time residents, or how many head of stock (and what type of livestock) will be needing the water?

  • Where is this system going to be located (city, state, country or latitude & longitude)?

  • What is your water source (well, pond/lake, spring, stream)?

  • What is its production rate?

  • If your source is a well, we need to know interior casing size, depth of the well, static water level from the ground, and what is the drawdown level from the ground?

  • Will this system need to push water to a tank or cistern located above your water source? If yes, what is the linear distance as well as the elevation difference between the water source and the storage tank? Also, what is the storage capacity of this tank or cistern?

  • Is there at present a pipe installed connecting the water source to your tank or cistern? If yes, what size is the pipe ID and what type (steel or PVC) is it?

  • Will this pumping system be used year round or seasonally?

  • We need to know your daily volume of water needed during each month of the year that the system will be in use.

  • Is there already a pump installed at this location? If so, we need to know what sort of pump it is (manufacturer, model number, AC or DC, operating voltage & amperage, years installed, etc.)

  • Any other details regarding your existing system or site that you feel may be helpful in our system design process.

Questions? Call us at 406-777-4321 or 877-627-4778.

“Real generosity towards the future lies in giving all to the present.” --Dietrich Bonhoeffer

 

November 2007 Newsletter Navigation 
Page 4:  Solar Water Pumping
index page 1 page 2 page 3 page 4 page 5 page 6
Oasis Montana Site Map