1. Introduction
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of the DMBGRXJF 1 Inch Normally Closed Motorized Brass Ball Valve. This valve is designed for controlling the flow of hot and cold water, as well as 50% Ethylene glycol solutions, in various applications. Please read this manual thoroughly before installation and operation to ensure safe and efficient use of the product.
2. Safety Information
WARNING: Improper installation or operation can lead to electric shock, fire, or property damage. Always follow safety guidelines.
- Ensure power is disconnected before performing any installation, maintenance, or wiring.
- All electrical wiring must be performed by a qualified electrician and comply with local electrical codes.
- Verify the voltage rating of the valve (110VAC) matches the power supply.
- Do not exceed the specified pressure or temperature limits of the valve.
- Wear appropriate personal protective equipment (PPE) during installation.
- Ensure proper sealing of all plumbing connections to prevent leaks.
3. Product Overview
The DMBGRXJF Motorized Ball Valve is a 1-inch brass valve equipped with an electric actuator. This specific model is a "Normally Closed" type, meaning the valve is closed when no power is applied to the actuator. When power is supplied, the actuator rotates the ball to the open position. The valve is designed for durability and reliable performance in various fluid control systems.
Figure 1: Dimensions of the DMBGRXJF 1 Inch Motorized Ball Valve. The actuator measures approximately 80mm in width and 133mm in height. The brass valve body has a 1-inch connection, with a total length of 65mm and a height of 31mm from the center of the pipe to the top of the valve body.
Figure 2: Close-up of the actuator unit, displaying model information (XQ2014-L21B), voltage (DC12-24V in this example, but the product is 110VAC), IP rating (IP52), and torque (8NM). This image illustrates the general design of the actuator.
4. Specifications
| Feature | Specification |
|---|---|
| Valve Body Material | Brass |
| Voltage | AC110V (for this variant) |
| Working Form | Normally Closed |
| Power Consumption | 6VA |
| Valve Body Pressure Resistance | 1.6 MPa |
| Medium | Hot/Cold Water, 50% Ethylene Glycol Solution |
| Opening and Closing Time | 15 seconds |
| Medium Temperature | 0-90°C |
| Structure | Ball Valve |
| Size | 1 Inch |
| Item Weight | Approximately 1.76 ounces (valve only) |
| Package Dimensions | Approximately 1.18 x 0.79 x 0.39 inches |
5. Setup and Installation
5.1 Pre-Installation Checks
- Inspect the valve for any visible damage.
- Confirm the valve's voltage (110VAC) matches your power supply.
- Ensure the pipe size (1 inch) is compatible with the valve.
5.2 Mechanical Installation (Plumbing)
- Turn off the main water supply to the installation area.
- Drain the pipes to relieve pressure and remove any remaining water.
- Install the ball valve into the pipeline, ensuring the flow direction matches the application requirements. The valve can be installed in any orientation, but ensure the actuator is accessible for wiring and maintenance.
- Use appropriate thread sealant (e.g., PTFE tape or pipe dope) on all threaded connections to prevent leaks.
- Tighten connections securely, but do not overtighten, which could damage the valve body.
5.3 Electrical Connection (Wiring)
This 2-wire motorized ball valve is a Normally Closed (NC) type. It requires a 110VAC power supply.
- Ensure the power supply is OFF at the circuit breaker.
- Connect one wire from the valve's actuator to the Live (L) terminal of your 110VAC power supply.
- Connect the other wire from the valve's actuator to the Neutral (N) terminal of your 110VAC power supply.
- Secure all electrical connections with appropriate connectors and ensure they are insulated.
- Verify all wiring is correct before restoring power.
6. Operating Instructions
The DMBGRXJF 1 Inch Normally Closed Motorized Ball Valve operates based on the presence or absence of electrical power.
- Normally Closed State: When no power (0V) is supplied to the actuator, the valve remains in its closed position, preventing fluid flow.
- Open State: When 110VAC power is supplied to the actuator, the motor engages and rotates the ball within the valve body to the open position. This allows fluid to flow through the valve. The opening process takes approximately 15 seconds.
- Return to Closed State: When the 110VAC power supply is removed, the actuator automatically returns the valve to its closed position. The closing process also takes approximately 15 seconds.
This valve is suitable for applications where the default state without power is closed, and flow is only required when power is actively applied.
7. Maintenance
Regular maintenance ensures the longevity and reliable operation of your motorized ball valve.
- Periodic Inspection: Regularly check the valve and actuator for any signs of leakage, corrosion, or physical damage.
- Electrical Connections: Ensure all electrical connections remain secure and free from corrosion.
- Cleaning: Keep the exterior of the actuator clean and free from dust or debris. Do not use harsh chemicals or abrasive cleaners.
- Operation Check: Periodically cycle the valve (open and close) to ensure smooth operation.
- Storage: If storing the valve for an extended period, ensure it is in a dry, clean environment within the specified temperature range.
8. Troubleshooting
If you encounter issues with your DMBGRXJF motorized ball valve, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Valve does not open when power is applied. | No power to actuator; Incorrect wiring; Actuator malfunction. | Check power supply and circuit breaker. Verify wiring connections. If power is present and wiring is correct, the actuator may need replacement. |
| Valve does not close when power is removed. | Power still supplied; Actuator malfunction; Obstruction in valve. | Ensure power is completely removed. Check for any debris inside the valve. If issues persist, the actuator may be faulty. |
| Valve leaks from connections. | Improperly sealed threads; Loose connections. | Turn off water supply. Re-tighten connections. Apply more thread sealant if necessary. |
| Valve leaks from body/stem. | Damaged valve body or seals. | The valve may be damaged and require replacement. |
| Valve operates slowly or intermittently. | Low voltage; Actuator wear; Debris. | Verify stable 110VAC power supply. Check for internal obstructions. Actuator may be nearing end of life. |
If troubleshooting steps do not resolve the issue, contact customer support for further assistance.
9. Warranty and Support
DMBGRXJF products are manufactured to high-quality standards. This product is covered by a limited manufacturer's warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the product packaging or contact your retailer.
For technical support, replacement parts, or warranty claims, please contact DMBGRXJF customer service through the retailer where the product was purchased or visit the official DMBGRXJF website for contact information.