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Impact Sprinklers
RainIrri
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Product Description
The Role of Impact Sprinklers in Irrigation Systems
Impact sprinklers are key components commonly used in irrigation systems. They primarily drive nozzles to spray water through the rotational swing of the rocker arm, achieving uniform irrigation for farmland, gardens, and other areas. Below is a detailed explanation of their core functions and related characteristics:
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JF-9821
Driven by the reciprocating swing of the rocker arm, the nozzle rotates in a fan-shaped or full-circle pattern, dispersing water into fine droplets and covering a large area (with a spray range of several to tens of meters).
The spraying angle (e.g., 30°, 60°, 90°, or full circle) and water volume can be adjusted according to crop types and soil texture to ensure irrigation uniformity and avoid local waterlogging or drought.
Agriculture: Suitable for field crops (such as wheat and corn), orchards, and tea gardens. The spray range and width can be flexibly adjusted to accommodate row spacing and crop height.
Landscaping and Lawns: In parks, golf courses, and other settings, precise control of the spraying area prevents water waste and avoids damaging plant roots.
Industrial and Municipal Use: Applied in special scenarios like road dust suppression and cooling pool temperature control in power plants.
Compared to flood irrigation, rocker arm sprinklers can reduce surface runoff and deep seepage, achieving a water-saving rate of 30% to 50%.
Some models are equipped with pressure regulators to optimize spraying efficiency based on water source pressure, reducing energy consumption.
Most sprinklers feature anti-clogging designs (such as large-diameter nozzles and filter structures), making them suitable for water sources with poor water quality (such as river water or well water).
Constructed from engineering plastics or metals (such as aluminum alloy or stainless steel), they are resistant to aging and corrosion, suitable for long-term outdoor use.
| Performance Indicator | Description |
|---|---|
| Spray Range | Typically 5–30 meters, depending on nozzle diameter, operating pressure, and rocker arm speed. Higher pressure yields a longer range. |
| Sprinkler Application Rate | Water volume per unit time (mm/h), which must match soil infiltration rates to avoid waterlogging. |
| Atomization Degree | The size of water droplets affects irrigation: fine atomization is suitable for seedlings or sensitive crops to prevent soil erosion. |
| Rotation Speed | The swing frequency of the rocker arm determines irrigation uniformity. Adjustable-speed models suit different crop water requirements. |
| Operating Pressure Range | Generally 0.2–0.6 MPa, compatible with various water pumps and pipeline systems. |
Rocker Arm Type (Most Common): Driven by water flow impacting the rocker arm for reciprocating motion. Simple in structure and highly reliable, suitable for small-to-medium irrigation systems.
Impeller/Turbine Type: Driven by water flow through an impeller for stable rotation, suitable for high-pressure, long-range scenarios (such as large farms).
Reaction Type: Driven by water flow reaction force for rotation, featuring low noise and suitable for environments with high noise restrictions (such as parks).
Fixed Type: Fixed spraying angle, suitable for narrow and long areas (such as street trees).
Adjustable Type: Manual or automatic adjustment of spraying range and angle for higher flexibility.
Automatic Rotation Type: Paired with controllers for timed and angle-specific irrigation, often used in smart irrigation systems.
Irrigation Area: Choose micro-sprinklers with a 5–10-meter range for small areas; select models with a 20+ meter range for large areas (such as farmland).
Crop Type: Use fine-atomization sprinklers for seedling stages; opt for long-range, high-application-rate models for mature plants.
Water Source Conditions: Choose anti-clogging models for poor water quality; select low-pressure-compatible sprinklers for low-pressure sources.
The spacing between sprinklers should overlap 30%–50% of their spray range to ensure no irrigation (blind spots).
Installation height should exceed the top of crops to prevent water flow obstruction by leaves (e.g., install orchard sprinklers more than 2 meters above the tree trunk).
Install filters in the pipeline system to prevent nozzle clogging by sediment.
Regular Cleaning: Clean nozzles and filters before and after each irrigation season to prevent debris accumulation.
Check Rocker Arm Flexibility: Lubricate shaft pins or replace worn components if swinging is stuck.
Troubleshooting:
No Rotation: May be due to loose rocker arm springs or impeller blockage; adjust or clean as needed.
Insufficient Spray Range: Check if pressure is adequate and whether nozzles are worn; replace components if necessary.
