Large Sprinkler Irrigation Systems for Efficient Watering

Large sprinkler irrigation systems are a game-changer for efficient watering. They can cover up to 20,000 square feet of area with a single system.

You can choose from various types of sprinkler systems, including pop-up sprinklers, impact sprinklers, and rotor sprinklers. Each type is designed for specific watering needs and soil types.

Pop-up sprinklers are ideal for small to medium-sized lawns and can be easily hidden from view when not in use. They're also relatively inexpensive compared to other types of sprinklers.

Impact sprinklers are perfect for larger areas and can distribute water over a wide radius. They're also great for watering plants with deep roots.

A well-designed large sprinkler irrigation system can save you up to 50% of your water usage compared to traditional watering methods. This is especially important during droughts or water restrictions.

Discover more: Crop Watering System

Large sprinkler irrigation offers many advantages, particularly when it comes to irrigation scenarios that require a higher flow rate.

Long distance sprinklers are perfect for open fields, such as pastures or large acreages of crops like sugar cane, alfalfa, potatoes, corn, or pasture grasses.

They can also be used to irrigate tall-growing crops like vineyards or orchard trees with the help of appropriate risers.

The large areas covered by long distance sprinklers mean fewer sprinklers and pipes are needed per unit area compared to other irrigation system configurations.

This makes them an excellent solution for fields with irregularly shaped boundaries or land containing physical obstructions like trees, roads, or streams.

In fact, long distance sprinklers can be used to irrigate fields of almost any layout or shape.

They can even be added to the end of an existing center pivot irrigation system to expand the irrigated crop area.

Broaden your view: Irrigating Trees with Drip Systems

To ensure efficient large sprinkler irrigation, it's essential to design and size your system properly. Main and lateral lines should operate at velocities of 5 feet per second (FPS) or less to minimize friction loss and maximize water distribution.

A good balance between pipe size and cost typically occurs between velocities of 3.5 to 5 FPS. For example, a 4-inch Class 160 psi PVC pipe is a suitable choice for both main and lateral lines, as it can handle a maximum flow rate of 190 GPM at 5 FPS.

The well pump's head and horsepower must also be calculated to ensure proper system performance. The total dynamic head (TDH) is determined by adding individual components such as well lift, riser pipe friction, elevation rise, frictional loss in the mainline and laterals, and operating pressure at the nozzle.

Worth a look: Irrigation Sprinkler Head Leaking

Long distance area coverage is crucial for efficient irrigation systems.

Komet's Dynamic Jet-Breaker device can redistribute excess water from the end of the throw towards the gun, altering the water distribution profile to fit solid-set systems.

The choice of nozzle is vital for achieving uniformity of application.

Komet's full taper bore nozzles are available in diameters from 10.0 to 45.00 mm, matching flow rates from 5.4 to 235.0 m/h and pressure ranges from 1 to 9 bar.

Wind drift can interfere with distribution uniformity, so using lower trajectory angles is essential in winds over 10 mph.

The Komet Vari Angle accessory allows growers to adjust the sprinkler's trajectory angle between 15 and 45 degrees without flow restrictions.

Take a look at this: Solar Garden Irrigation Systems

Main Sizing is crucial for a well-functioning irrigation system.

Dedicated mains should operate at velocities of 5 feet per second (FPS) or less.

Friction loss is a significant factor in main sizing, and it must be determined for the longest distance from the source.

In this case, the longest distance is 1500 feet.

A good balance between pipe size and cost is achieved when velocities are between 3.5 to 5 FPS.

The maximum flow rate of 190 GPM falls just below a 4-inch pipe at 5 FPS.

A 4-inch Class 160 psi PVC pipe is chosen for both main and lateral lines.

Consider reading: Garden Irrigation Pipe

The head is a crucial component in irrigation design, and it's found by adding up the individual components of well lift, riser pipe friction, elevation rise, frictional loss in the mainline and laterals, and operating pressure at the nozzle.

For example, let's consider a specific scenario where the well lift is 105 feet PWL, the estimated riser pipe hf is 5 feet, and the 4-inch PVC friction loss is 32 feet based on 1500 feet of 4 inches.

For your interest: Irrigation Sprinkler Riser

Miscellaneous head and riser height add up to 13 feet, and the operating pressure at the nozzle is 80 psi, which is equivalent to 185 feet of head.

In this case, the total dynamic head (TDH) is 340 feet.

To determine the horsepower required for the well pump, we can use the formula: Estimated well pump HP = 190 GPM × 340 feet TDH / 3960 × 0.75 (estimate), which gives us 21.75 BHP, but we'll round up to 25 HP.

Typically, this application would be performed by either a vertical turbine or submersible pump.

Additional reading: Drip Irrigation Sprinkler Head Adapter

Large sprinkler irrigation systems typically cover areas of up to 2 acres.

The water pressure required for these systems ranges from 30 to 100 pounds per square inch (PSI).

With a flow rate of 20 gallons per minute, you can efficiently water your lawn or garden.

The Rain Bird LF Series Sprinkler has a flow rate of 2.93 to 6.82 gpm, which is equivalent to 665 to 1,549 liters per hour.

This range of flow rates allows for flexibility in irrigation applications, making it suitable for various agricultural needs.

The sprinkler's rugged design enables it to withstand harsh conditions, ensuring reliable performance in demanding environments.

The sprinkler system's features are designed to provide consistent performance in a wide temperature range, making it ideal for cooling or frost protection.

One of the key features is the weighted drive unit, which increases dwell time between stream interruptions to maximize throw distance.

The Precision Jet (PJ) spoon directs water toward the field to prevent erosion at the riser base. This is especially important for maintaining a stable and even water distribution.

The deflector is made of engineered thermoplastic, providing wear resistance and dimensional stability. Additionally, its break-up features optimize uniformity.

Snap-in-place color-coded nozzles and deflectors make setup a breeze, requiring no tools at all. This is a huge time-saver, especially when working with multiple sprinkler systems.

Here are the four simple parts that make up the sprinkler system: drive unit, body (ACME or NPT), deflector, and nozzle.

Suggestion: Large Window Unit Ac

When selecting a sprinkler for large irrigation projects, it's essential to consider the available product options.

You can choose from different sprinkler body types, including the ½“ (13mm) NPT male pipe thread, which is a common and versatile option.

For projects that require a specific thread type, the 23mm ACME male thread is also available, but keep in mind that it may need a special adapter.

If you need to connect a 23mm ACME male thread to a standard pipe, you can use a 3/4" (19mm) male NPT Adapter installed on the sprinkler body.

Anti-theft bodies are also available for projects where security is a concern.

Here are the different sprinkler body options: