NDS 111C

NDS 111C 10" Irrigation Control Valve User Manual

Brand: NDS | Model: 111C

1. Introduction and Overview

The NDS 111C 10" Irrigation Control Valve is designed for efficient management of water flow in irrigation systems. This round, green valve is engineered for ease of installation and reliable operation, ensuring precise control over your watering zones.

Key features include:

  • Measures 10 inches in diameter.
  • Features a round, compact shape.
  • Constructed from durable green plastic.
Top view of the NDS 111C 10-inch green irrigation control valve, showing the 'IRRIGATION CONTROL VALVE' text and two circular openings.
Figure 1: Front view of the NDS 111C Irrigation Control Valve. This image displays the top surface of the valve, which is green and round, with embossed text indicating "IRRIGATION CONTROL VALVE" and the NDS logo. It also shows two circular openings and a smaller hole for mounting or access.

2. Setup and Installation

Proper installation is crucial for the optimal performance of your NDS 111C Irrigation Control Valve. This valve is designed to be integrated into an existing irrigation system to regulate water flow to specific zones.

  1. Site Selection: Choose a location that is easily accessible for maintenance and protected from potential damage. Ensure the valve is installed at a point where it can effectively control the desired irrigation zone.
  2. Excavation: Dig a trench or hole large enough to accommodate the valve and its connections, allowing sufficient space for plumbing work.
  3. Connection: The valve features a flange inlet connection and threaded or boltable outlet connection. Connect the valve to your main water line and the irrigation zone piping using appropriate fittings and sealants to ensure a watertight seal. Refer to local plumbing codes for specific requirements.
  4. Orientation: Ensure the valve is oriented correctly according to the water flow direction, if indicated on the valve body.
  5. Testing: Before backfilling, slowly turn on the water supply to check for any leaks at the connections. Address any leaks immediately.
  6. Securing: Once connections are secure and leak-free, carefully backfill the area around the valve, ensuring it is stable and protected.
A person's hands holding the NDS 111C 10-inch green irrigation control valve, with a ruler indicating its 10-inch (25 cm) diameter.
Figure 2: NDS 111C Irrigation Control Valve with size reference. This image shows the valve being held, with a measurement scale indicating its 10-inch (25 cm) diameter, providing a clear visual of its physical size for installation planning.

3. Operating Instructions

The NDS 111C Irrigation Control Valve is designed to be an integral part of an automated irrigation system. It functions as a gate for water flow, opening and closing to allow or restrict water to specific irrigation zones.

  • Automated Control: This valve is typically controlled by an irrigation timer or controller. The controller sends an electrical signal to the valve's solenoid (if equipped, or to an external actuator) to open or close the valve.
  • Manual Override (if applicable): Some control valves may feature a manual override mechanism, allowing you to open or close the valve without the controller. Consult your specific system's documentation for details on manual operation.
  • Water Flow: When the valve is open, water flows through it to the designated irrigation zone. When closed, water flow is stopped.

Ensure your irrigation controller is programmed correctly to manage the watering schedule for each zone connected to an NDS 111C valve.

4. Maintenance

Regular maintenance helps ensure the longevity and reliable operation of your NDS 111C Irrigation Control Valve.

  • Periodic Inspection: Periodically inspect the valve and its connections for any signs of leaks, cracks, or damage. Address any issues promptly to prevent water waste and system failure.
  • Debris Removal: If the valve is accessible, occasionally check for and remove any debris (e.g., dirt, sand, small stones) that might accumulate around or inside the valve, which could impede its operation.
  • Winterization (in cold climates): In regions subject to freezing temperatures, it is essential to properly winterize your irrigation system, including the control valves. This typically involves draining all water from the system to prevent freezing and potential damage to the valve and pipes. Consult a professional if unsure about winterization procedures.
  • Cleaning: Clean the exterior of the valve as needed to remove dirt and grime, which can help in identifying potential issues.
Underside view of the NDS 111C 10-inch green irrigation control valve, showing its internal structural ribs.
Figure 3: Underside view of the NDS 111C Irrigation Control Valve. This image reveals the structural ribs and reinforcement on the underside of the green, round valve, designed for durability and stability.

5. Troubleshooting

If you encounter issues with your NDS 111C Irrigation Control Valve, refer to the following common troubleshooting steps:

ProblemPossible CauseSolution
No Water Flow
  • Main water supply off.
  • Controller not sending signal.
  • Valve clogged with debris.
  • Damaged solenoid/actuator.
  • Check main water supply valve.
  • Verify controller programming and wiring.
  • Inspect and clean valve internals.
  • Test and replace solenoid/actuator if faulty.
Continuous Water Flow (Valve Won't Close)
  • Debris lodged in valve.
  • Damaged diaphragm or internal components.
  • Solenoid/actuator stuck open.
  • Flush the valve to clear debris.
  • Inspect and replace damaged internal parts.
  • Check and replace solenoid/actuator.
Leaks Around Valve Connections
  • Loose connections.
  • Damaged threads or seals.
  • Cracked valve body.
  • Tighten connections.
  • Apply pipe sealant or replace seals/fittings.
  • Replace the valve if the body is cracked.

If problems persist after attempting these solutions, it is recommended to consult a qualified irrigation professional.

6. Specifications

Detailed specifications for the NDS 111C 10" Irrigation Control Valve:

Model Number111C
BrandNDS
MaterialPlastic
ColorGreen
Item Dimensions (L x W x H)9.63 x 9.63 x 1.25 inches
Item Weight12.3 ounces
Exterior Finish[AS] Green
Inlet Connection Size10 Inches
Inlet Connection TypeFlange
Outlet Connection TypeThreaded or Boltable
Outlet Connection Size10 Inches
Number of Ports2
Valve TypeIrrigation Control Valve
Specification MetANSI B16.11, ASME B16.34, CSA, NSF, ULC, UPC
UPC052063011110
Date First AvailableJanuary 18, 2007

7. Warranty and Support

For information regarding product warranty, technical support, or replacement parts for your NDS 111C Irrigation Control Valve, please refer to the official NDS website or contact NDS customer service directly.

You can also visit the official NDS store on Amazon for additional product information and support resources:

Visit the NDS Store on Amazon

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