Senninger Irrigation is proud to release the new UP3 Dual Nozzle Carrier. Utilizing two different flow rates on a center pivot (a lower rate for germination or chemigation and a higher rate for mature crop irrigation) provides an excellent way to save water and energy. The Dual Nozzle Carrier greatly simplifies renozzling for this purpose. The flexible material is ideal for durability from possible impact. This carrier, coupled with the innovative UP3 nozzle design, makes flow change so convenient. Just pinch and pull to remove the nozzle. Then flip the unit over and place and click to re-install. Cleaning and changing nozzles is so convenient—no need to disassemble or remove the sprinkler. The Dual Nozzle Carrier is clearly marked with “high” and “low” to readily identify which nozzle flow is being used. The new UP3 Dual Nozzle Carrier is designed for use with the UP3 i-Wob, Xi-Wob, LDN and Super Spray. To see how easy the Dual Nozzle Carrier is to use click here.
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by Ben van den Heever, B.Ing (Civil Engineering)
In the past, an irrigation designer was reliant on the surveyor’s data to provide an accurate digital terrain model. In many cases when the data was not available, the designer would proceed as if working on a flat surface or make vague assumptions about the terrain. Looking at the software tools available today, it is safe to conclude those days are over and irrigation designers can produce accurate designs at low cost.
By using Irri-Maker, the designer can now seamlessly interact with Google Earth to produce a very accurate DTM model when doing preliminary irrigation designs. Using a Google Earth produced DTM model has the following advantages.
- There is no cost involved to create the topographical map.
- The initial irrigation design can be done without waiting for survey data.
- Alternatives can easily be analyzed.
Even though the final design should always be based on actual survey data, using Irri-Maker and surface models derived from Google Earth is a logical choice for initial designs and layouts of irrigation systems.
For more information about Irri-Maker, Senninger’s irrigation design software, contact bvdh@senninger.biz
The system capacity (flow rate) needed to adequately irrigate an area is dependent on the:
- Peak crop water requirements during the growing season
- Effective crop rooting depth
- Texture and infiltration rate of the soil
- The available water-holding capacity of the soil
- If the water source is a one or more wells, the well or wells’ pumping capacity
- The State Water Commission permitted pumping rate
This table shows the system capacity (gpm/acre) needed for the commonly irrigated crops and various soil textures. Determine the dominant soil texture in the field and what type of crops will be 
grown (the crop rotation), then determine the appropriate system capacity. For example, for a rotation of potatoes, corn and alfalfa on loamy sand, the table shows that potatoes require 7 gpm/acre, corn 5.9 gpm/acre and alfalfa 5.6 gpm/acre. Select a design system capacity for the crop requiring the largest amount, in this case the potatoes at 7 gpm/acre. If you install a center pivot system covering 130 acres, you would need about 910 gpm for proper design. Note, what you need for proper design and what a well will produce may be different.
| Crop | Root Zone Depth (ft) | Coarse Sand and Gravel | Sand | Loamy Sand | Sandy Loam | Fine Sandy Loam | Loam and Silt Loam |
| Potatoes ** | 2.0 | 8.2 | 7.5 | 7.0 | 6.4 | 6.1 | 5.7 |
| Dry Beans | 2.0 | 7.9 | 7.1 | 6.4 | 6.1 | 5.7 | 5.4 |
| Soy Beans | 2.0 | 7.9 | 7.1 | 6.4 | 6.1 | 5.7 | 5.4 |
| Corn | 3.0 | 7.3 | 6.6 | 5.9 | 5.5 | 5.3 | 4.9 |
| Sugarbeets | 3.0 | 7.3 | 6.6 | 5.9 | 5.5 | 5.3 | 4.9 |
| Small Grains | 3.0 | 7.3 | 6.6 | 5.9 | 5.5 | 5.3 | 4.9 |
| Alfalfa | 4.0 | 6.8 | 5.9 | 5.6 | 5.1 | 5.0 | 4.5 |
| ** Adjusted for 40 percent depletion of available water | |||||||
A sprinkler system must be designed to apply water uniformly without runoff or erosion. The application rate of the sprinkler system must be matched to the intake rate of the most restrictive soil in the field. If the application rate exceeds the soil intake rate, the water will run off the field or relocate within the field, resulting in over- and under watered areas. The intake rate of the soils in your field can be found in the county soil survey available at your local Natural Resources Conservation Service or Extension office.
Contact your local dealer to learn how Senninger products can meet your needs.
Excerpts from “Selecting a Sprinkler Irrigation System,” Tom Scherer, Extension Agricultural Engineer, North Dakota State University, January 2010, www.ag.ndsu.edu
Senninger is proud to announce the launch of our newly designed website. The Home Page provides addition
al information and more choices to link you to what you want. Convenient tabs take you directly to our Blog, News, Shows, and Careers as well as to About Us, Products, Literature & Software, Contact Us, and even our Spanish website. In the Featured Products section you can readily access information about products suitable for various installations – Mechanized Irrigation, Nursery & Greenhouse, Solid Set, Pressure Regulators, Flow Meters, and Other. The Related Literature list automatically updates as new items are added. What Our Customers Say features several different testimonials. Our Latest Tweet updates daily. Familiar social media icons take you directly to the Senninger Twitter, Facebook, YouTube, and Blog.
We invite you to explore some of the new features in detail and let us know what you think. You can use the Contact Us tab or email us at info@senninger.com. For forty-eight years, we remain committed to exceeding customer expectation.
Both maintain a constant outlet pressure when handling rated flows. The difference comes when there is no flow through the device. The standard pressure regulator will read the same pressure in and out when there is no flow. The limiting valve has a rubber seat and therefore is able to limit the downstream pressure to about 10-15 psi above the rated outlet pressure, even with no flow conditions. This helps assure optimum system performance and protects downstream components. Both operate with very low hysteresis, though the limiting valve has slightly more friction loss at the same flows.
A pressure regulator MUST be installed downstream from all shut-off valves.
A pressure regulating limit valve, with its different internal construction, CAN BE installed upstream of shut-off valves. With either device, use of a filter upstream is recommended (100 mesh or finer capable of flowing up to 18 gpm with no more than 5 psi internal friction loss).
The pressure regulating limit valve is intended for outdoors use only.
Both Senninger pressure regulators and pressure regulating limit valves are 100% water-tested before they leave the factory. Senninger pressure regulators are warranted for two years on materials, workmanship and performance. Senninger pressure regulating limit valves are warranted for one year.
For more information about Senninger pressure regulators or pressure regulating limit valves, contact them at info@senninger.com or visit www.senninger.com
It’s always a good idea to check out your center pivot before you turn it on to start the season. A few things you should look at before you start the system are:
- Walk the pivot and observe the applicators to assure they are good working order. Look inside the nozzles to assure they are not worn or clogged.
- Secure a copy of the printout to assure the nozzles along each span correspond to what your printout indicates.
- Check to assure the end gun has the correct nozzle.
Then go ahead and start it up and:
- Observe filters and drains to assure they are not clogged.
- Observe system for leaks.
- Observe sprinklers to make sure they are working properly. Inadequate pressure to the sprinklers can cause problems,
- Check pressure regulation. Is the pressure above the regulator what it is intended to be or does the system pressure need to be adjusted? Is the pressure the same immediately before and immediately after the regulator?
- Observe system for overlaps. If things don’t look right, you may want to set up a uniformity test with catch cans
- Observe end gun to assure it is operating as it should. Adjust the part circle stops if needed.
- Check system speed at 100%.
- Check system flow.
- Check pivot pressure and end pressure.
If a 15 psi pressure regulator is malfunctioning located 1170 ft out on a ¼ mile 800 gpm package with 40 psi pivot pressure, that outlet would produce 31% more flow affecting the uniformity on almost 10 acres of crop.
If two sprinklers are plugged at 1170 ft from pivot point with a performance diameter of 56 ft, almost 10 acres are affected by these 2 plugged nozzles which will result in decreased yields.
Senninger stands behind their products with the best sprinkler warranty in the industry—two years on materials, workmanship and performance. The nozzles carry a five year warranty to retain orifice size.
For more information go to www.senninger.com
On March 25th Senninger celebrated its 48th birthday. The company paused to celebrate that afternoon with cake and ice cream at the corporate headquarters in Clermont, Florida. Andy Healy (left) and Mark Healy (right) were present to blow out the candles. They are the nephews of founder, Joe Senninger.
Joe began selling the Insect-Proof impact sprinkler in 1963. Since then the company has expanded its product line, market, and work force to reach 46 countries with hundreds of products for agriculture, nurseries, and solution mining.
The employees (all 223 of them) make Senninger’s success possible. So thank you to all of those who work so hard, and the loyal customers who have been there these 48 years.
For more information about Senninger Irrigation, contact them at info@senninger.com or visit www.senninger.com
In January one of Senninger’s customers brought their dealers from all over the nation to Fl
orida for their annual meeting. Since they were in town, Senninger invited the dealers to come tour the facility to see how products are made. Two Senninger employees escorted the group from their hotel to the Clermont headquarters on a chartered bus. James Burks, Senninger’s president, welcomed them upon arrival in front of the building. He focused their attention on the tiles that line the entrance to showcase Senninger’s core values as well as the name of every employee including their years of service. The guests were then led inside where they sat down to a catered meal, served by Senninger personnel. To begin the tour, the group was divided into smaller groups to make it easier for everyone to hear and see presentations at various locations throughout the company. Tour stops included Production, Assembly, Molding, Testing, Production 
Engineering, and Research & Development. Senninger personnel from these departments gave the presentations and were able to answer the guests’ questions first hand. Both the guests and the employees enjoyed the opportunity for direct contact and interaction.
The small groups re-assembled in the employee lunchroom to receive a few gifts as a “Thank You” for taking the time to tour the facility. Senninger was pleased to host this group and received kind comments regarding the visit.
This winter Senninger hosted six seminars from coast-to-coast to talk to dealers and NRCS personnel about irrigation and the industry. In addition to introducing the new UP3 easy-clean nozzle, presentations focused more on science than selling. Chris Striby, Senninger’s National Sales Manager, attended all seminars lending his engineering background to these scientific discussions. He spoke about the functionality of pressure regulators looking at hysteresis, friction loss, and accuracy to explain the benefit they provide applicators. Information about soil, application intensity, low pressure energy savings, and applicator software were also presented. Also in attendance were Senninger’s district managers who were able to meet and greet their customers and provide more specific installation information tailored to their areas. Marketing presented an 
overview of the tools available not only the Senninger website, but the social media offerings as well. Literature coding was also explained so dealers can more easily identify the latest printed materials. A survey conducted at the end of each seminar showed that attendees rated relevance at 91% and overall presentation at 95%.
The Senninger UP3 received the most innovative new agricultural product of 2010 from the Irrigation Association at the IA annual international irrigation show in Phoenix AZ in December. Entries are evaluated by a panel of expert judges based on innovative qualities, water conservation, ease of use, cost benefits, time savings, design quality and user risk.
The new features of the UP3 (Universal Pivot Products Platform ) design have been applied to the proven technologies of the i-Wob, Xi-Wob, LDN and Super Spray.
The easy-clean / easy-change nozzle provides the convenience of pinch and pull to remove the nozzle; place and click to re-install. There is no need to disassemble or remove the sprinkler. The UP3 nozzle sizes are easily identifiable with color-coding and embossing on the ears, including half sizes.
Each applicator has an integrate base and can be installed directly into a pressure regulator or onto a standard ¾” NPT female connection with no special threads or fittings required. This increases reliability and means fewer parts are required.
Senninger stands behind their products with the best sprinkler warranty in the industry—two years on materials, workmanship and performance. The nozzles carry a five year warranty to retain orifice size.
For more information about UP3 sprinklers, contact Senninger Irrigation at info@senninger.com or go to www.senninger.com or http://www.irrigationshow.org/Media/ExhibitorPressReleases.html
WHAT OUR CUSTOMERS SAY…
“I really like the i-Wob. It puts out a super pattern. And by designing our sprinkler packages with low pressure i-Wobs, it has helped us save on our horsepower requirements and pumping costs! I really like the technology and the design. With our soils, using i-Wobs lets me apply more water per pass without runoff problems. I’ve converted three of my pivots to the i-Wob.”- Mike Foley, Nebraska