1. Introduction
The DIG DM075 Automatic Valve Assembly is a complete drip zone unit designed to simplify and automate drip irrigation installations. This assembly integrates essential components to ensure reliable performance and protection for your drip system. It is ideal for automating a drip irrigation zone, filtering particles, and regulating water pressure to optimal levels for micro-irrigation.
2. Product Overview
The DM075 assembly combines several critical components into a single, compact unit, ensuring efficient and protected operation of your drip irrigation system.
Image: The DIG DM075 Automatic Valve Assembly, featuring the 24 VAC in-line valve, heavy-duty filter, and pressure regulator, ready for installation.
Key Features:
- All-purpose, complete unit: Includes a 3/4" 24 VAC in-line valve, 3/4" heavy-duty filter with 155 mesh screen, 25 PSI preset pressure regulator, and 3/4" FHT swivel adapter with 700 OD.
- Wide Flow Range: Operates efficiently at very low flows, from less than one gallon per hour up to twelve gallons per minute.
- Durable Construction: Constructed of UV-resistant, durable plastic material designed to withstand adverse outdoor conditions.
- Versatile Connection: Can be connected directly to drip tubing or to pipe thread.
- Compact Design: Engineered to fit conveniently into smaller valve boxes.
3. Setup & Installation
Components Included:
- 3/4" 24 VAC In-Line Valve
- 3/4" Heavy-Duty Filter (155 mesh screen)
- 25 PSI Preset Pressure Regulator
- 3/4" FHT Swivel Adapter with 700 OD
Installation Steps:
- Identify Water Source: Locate the main water supply line where the drip zone will be installed.
- Connect to Main Line: Attach the 3/4" FHT swivel adapter to your water source. Ensure a secure, leak-free connection.
- Orient Assembly: Observe the flow direction arrow on the valve assembly. Install the unit so that water flows from the main line, through the filter, then the valve, and finally the pressure regulator.
- Connect Drip System: Connect your drip tubing or irrigation pipe to the outlet side of the pressure regulator.
- Wire the Valve: Connect the two wires from the 24 VAC in-line valve to your irrigation controller's 24 VAC output terminals. Ensure proper electrical connections according to your controller's manual.
- Test System: Slowly turn on the main water supply and activate the valve via your irrigation controller to check for leaks and proper operation.
4. Operating Instructions
The DIG DM075 Automatic Valve Assembly is designed to work in conjunction with a 24 VAC irrigation controller. Once properly installed and wired, the valve will open and close based on the programming of your irrigation controller.
- Automatic Operation: The 24 VAC in-line valve receives signals from your irrigation controller to initiate and terminate watering cycles for the designated drip zone.
- Pressure Regulation: The integrated 25 PSI preset pressure regulator automatically reduces and maintains the water pressure entering your drip system at the optimal 25 PSI, protecting emitters and micro-sprinklers from high pressure damage.
- Filtration: The 155 mesh screen filter continuously removes particles from the water, preventing clogging of drip emitters and ensuring consistent water delivery.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your DM075 valve assembly.
- Filter Cleaning: Periodically inspect and clean the 155 mesh screen filter. To clean, turn off the water supply, unscrew the filter housing, remove the screen, rinse it thoroughly under running water, and reassemble. Frequency depends on water quality.
- Leak Inspection: Regularly check all connections for leaks. Tighten any loose fittings.
- Winterization: In freezing climates, ensure the system is properly drained and protected from frost damage according to local guidelines for irrigation systems.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No water flow | Water supply off; Controller not sending signal; Clogged filter; Valve malfunction. | Check main water supply; Verify controller programming and wiring; Clean filter; Inspect valve for damage. |
| Low water pressure/flow | Partially clogged filter; Insufficient main water pressure; Kinked tubing. | Clean filter; Check main water pressure; Inspect and straighten tubing. |
| Water leaking from connections | Loose fittings; Damaged threads/seals. | Tighten connections; Replace damaged components or seals. |
| Valve not turning off | Debris in valve; Solenoid issue; Controller malfunction. | Flush valve to remove debris; Check solenoid wiring and function; Verify controller operation. |
7. Specifications
| Attribute | Detail |
|---|---|
| Product Dimensions | 6 x 3 x 4 inches |
| Item Weight | 0.16 ounces |
| Manufacturer | DIG |
| ASIN | B004NPYD2Y |
| Item Model Number | DM075 |
| Valve Type | 24 VAC In-Line Valve |
| Filter Mesh Size | 155 Mesh |
| Preset Pressure Regulation | 25 PSI |
| Connection Size | 3/4" FHT Swivel Adapter with 700 OD |
| Flow Rate | Less than 1 GPH up to 12 GPM |
8. Warranty & Support
For specific warranty information and technical support, please refer to the documentation provided with your purchase or visit the official DIG website. It is recommended to register your product if applicable to ensure access to full warranty benefits and support resources.
For further assistance, you may contact DIG customer service directly through their official channels.
