Introduction
This manual provides detailed instructions for the proper setup, operation, and maintenance of your Sime Duplex 2-inch Full Circle Impact Sprinkler. Designed for efficient and wide-area irrigation, this sprinkler features a robust cast aluminum body and a spring arm impact drive mechanism. Please read these instructions carefully before installation and use to ensure optimal performance and longevity of your product.
The Sime Duplex sprinkler is engineered for full-circle operation, offering a throw radius of 65.6 to 152.6 feet and operating pressures between 22 and 90 PSI, with flow rates from 42 to 220 GPM. It includes various nozzles to suit different irrigation requirements.
Product Overview
Figure 1: The Sime Duplex 2-inch Full Circle Impact Sprinkler, shown with its main body, impact arm, and a selection of interchangeable nozzles. The sprinkler features a durable cast aluminum construction and a brass base connection.
- Cast Aluminum Body: Ensures durability and resistance to environmental factors.
- 2-inch FNPT Base: Standard threaded connection for easy integration into irrigation systems.
- Spring Arm Impact Drive: Provides reliable and consistent rotation for uniform water distribution.
- Interchangeable Nozzles: Allows for customization of flow rate and throw radius based on specific irrigation needs.
Setup Instructions
- Unpacking: Carefully remove all components from the packaging. Verify that all parts, including the sprinkler body and various nozzles, are present and undamaged.
- Nozzle Selection: Refer to the "Nozzle Performance Chart" in the Specifications section to select the appropriate nozzle for your desired flow rate, throw radius, and operating pressure. The sprinkler comes with a set of nozzles to choose from.
- Nozzle Installation: Insert the chosen nozzle into the sprinkler head. Ensure it is seated firmly to prevent leaks and maintain spray pattern integrity.
- Mounting: Securely attach the sprinkler to a stable riser or stand using its 2-inch FNPT (Female National Pipe Taper) threaded base. Ensure the connection is watertight using appropriate thread sealant or tape. The sprinkler should be mounted vertically for optimal performance.
- System Connection: Connect your water supply line to the sprinkler's base. Ensure all connections are tight and free of leaks before activating the system.
Figure 2: The Sime Duplex sprinkler installed on a riser, ready for operation. Proper vertical mounting is crucial for even water distribution.
Operating Instructions
- Water Supply: Gradually open the water supply valve to allow water to flow to the sprinkler. Avoid sudden high-pressure surges.
- Pressure Range: Ensure your system operates within the recommended pressure range of 22-90 PSI for optimal performance. Pressures outside this range may affect the throw radius and spray pattern.
- Full Circle Operation: The Duplex sprinkler is designed for full-circle rotation, providing uniform coverage over its entire throw radius.
- Spray Adjustment: The sprinkler features a brass screw on the back of the impact arm. This screw can be adjusted to fine-tune the spray pattern and break up the water stream for closer watering or a finer mist. Turning the screw clockwise typically increases the spray break-up, while counter-clockwise reduces it.
- Monitoring Performance: Observe the sprinkler's operation to ensure even water distribution and proper rotation. Adjust water pressure or nozzle selection if coverage is uneven.
Maintenance
Regular maintenance ensures the longevity and efficient operation of your Sime Duplex sprinkler.
- Nozzle Cleaning: Periodically inspect the nozzle for blockages from debris (e.g., dirt, sand, mineral deposits). Clean with a small brush or by flushing with water. Avoid using sharp objects that could damage the nozzle orifice.
- Sprinkler Body Inspection: Check the cast aluminum body and impact arm for any signs of wear, corrosion, or damage. Ensure all moving parts operate smoothly.
- Spring Arm Check: Verify that the spring arm mechanism moves freely and returns to its original position after each impact. A stiff or stuck arm may indicate debris or wear.
- Winterization: In freezing climates, disconnect the sprinkler from the water supply and drain all water from the unit and associated piping to prevent freeze damage. Store the sprinkler in a dry, protected area.
Troubleshooting
- Sprinkler Not Rotating:
- Check for debris obstructing the impact arm or nozzle.
- Ensure adequate water pressure (minimum 22 PSI).
- Inspect the spring mechanism for damage or stiffness.
- Uneven Spray Pattern or Reduced Throw:
- Verify the nozzle is clean and free of blockages.
- Confirm the water pressure is within the optimal range (22-90 PSI).
- Check for leaks in the system before the sprinkler.
- Ensure the sprinkler is mounted vertically.
- Leaks at Connection Point:
- Tighten the connection to the riser/stand.
- Reapply thread sealant or PTFE tape to the 2-inch FNPT connection.
Specifications
| Feature | Detail |
|---|---|
| Model Number | DUPLEX |
| Base Connection | 2-inch FNPT |
| Flow Rate | 42 - 220 GPM (Gallons Per Minute) |
| Throw Radius | 65.6 - 152.6 ft |
| Operating Pressure | 22 - 90 PSI (Pounds per Square Inch) |
| Trajectory Angle | 25° |
| Operation Type | Full Circle |
| Drive Mechanism | Spring Arm Impact |
| Material | Cast Aluminum body, Brass base |
| Package Dimensions | 24.25 x 13.25 x 2.75 inches |
| Item Weight | 6.25 Pounds |
Nozzle Performance Chart
Figure 3: Nozzle performance chart detailing flow rates (GPM), throw radius (Feet), and application rates (In/hr) for various nozzle sizes and operating pressures (PSI). This chart assists in selecting the optimal nozzle for specific irrigation requirements.
Note: Performance values are approximate and may vary based on actual operating conditions and water source characteristics.
Warranty Information
Specific warranty details for the Sime Duplex 2-inch Full Circle Impact Sprinkler are not provided in this manual. For information regarding product warranty, including coverage duration and terms, please contact the original retailer or the manufacturer, Sime, directly. Retain your proof of purchase for any warranty claims.
Support
If you require technical assistance, have questions about installation, operation, or maintenance, or need to report a product issue, please contact the seller from whom you purchased this product. You may also visit the official Sime website for additional resources or to find contact information for their customer support department.
