LDN^® Spray Sprinklers

The Senninger LDN®, Low Drift Nozzle, provides the option to stack multiple deflector pads. Each additional pad has extra grooves that divide larger flows into multiple streams. This widens the wetted footprint of larger flows helping match the soil’s infiltration rate to reduce runoff.

Flows: 61 to 4168 L/hr

Pressures: 0.41 to 1.38 bar

Customize Distribution: with numerous deflector surfaces and trajectories
Saves energy: low pressure can reduce pumping costs
Versatility: easily convert from spray irrigation to LEPA application

Models

Model	Part Number	Description
LDN with Multiple Deflector Pads	See additional information	LDN with several combinations of two or three stacked deflector pads
LDN with Part-Circle Deflector Pad	See additional information	LDN with the part-circle deflector pad
LDN with Single Deflector Pads	See additional information	LDN with one of several deflector pad surfaces in three trajectories (blue, black, or green)

Contact your local distributor for product availability and ordering.

Videos

LDN® UP3®: Model Comparison

The LDN adapts to flow variations along a pivot with its multiple pad and deflector configurations.

The Versatile LDN Offers Multiple Options for Specific Irrigation Solutions

LDN's multiple deflector pads can be used to divide larger flows into more streams that resist wind-drift and evaporation.

Benefits of LESA Close Spacing on Potatoes & Carrots — Interview

In Bakersfield, California, LESA Close Spacing irrigation with LDN® UP3® sprinklers is providing the most uniform application rate and helping save w

All Product Videos

Features

The surfaces of the LDN® deflector pads are specially designed to deliver different spray patterns and droplet sizes. Multiple deflector pads can be used to divide larger flows into more streams as the flow and nozzle size increase along the length of the irrigation pivot.

Key Benefits

Customize distribution patterns based on soil and crop needs.

Low pressures mean energy and water savings.

Its compact design makes it more economical than other sprinklers.

Advanced Features

UP3 snap-in nozzles are easy to remove for cleaning or changing. To remove the nozzle, simply pinch and pull, then place and click to re-install. There is no need to disassemble or remove the sprinkler.

The color-coded nozzles are highly visible and easy to identify. The nozzle numbers (corresponding to orifice sizes in 64ths of an inch) are visible on the ears, with half sizes denoted beneath the second digit and the notches on the lower edge of the nozzle.

The versatile LDN platform has a modular design that makes it easy to change deflectors and maintain the sprinkler.

With the UP3 design, the base is an integral bracket part. It can be installed directly into a pressure regulator or NPT female fitting. This increases reliability and means fewer parts are required.

Charts

LDN DESIGN CRITERIA	Mini Pad	24 Deep Groove	Single Pad	Double Pad	Triple Pad
Nozzle Sizes
Minimum	#4 1.59 mm	#4 1.59 mm	#10 3.97 mm	#15 5.95 mm	#20 7.94 mm
Maximum*	#9 3.57 mm	#26 10.32 mm	#26 10.32 mm	#26 10.32 mm	#26 10.32 mm
Flows
Minimum	61 L/hr	61 L/hr	395 L/hr	893 L/hr	1588 L/hr
Maximum	581 L/hr	4811 L/hr	4811 L/hr	4811 L/hr	4811 L/hr
Maximum Spacing at 1.8 m ground clearance
	3.0 m	3.0 m	3.0 m	3.0 m	3.0 m
Pressure at the Nozzle
Minimum	0.41 bar	0.41 bar	0.41 bar	0.41 bar	0.41 bar
Maximum	1.38 bar	1.38 bar	1.38 bar	1.38 bar	1.38 bar

*It is recommended that larger nozzle sizes be used only on soils that can handle higher application rates.
The LDN is not recommended for surface water or effluent application.