Daviteq Mini Control Valve
BV
New replacement products
Replaced SKU
Gallery
1. Introduction
Overview
BV is a Mini Control Valve, integrated with a Ball valve body. The BV can be integrated into the wireless transmitter from Daviteq, such as Sub-GHz WS433, LoRaWAN WSLRW, and Sigfox WSSFC, to build the complete Wireless relay output node. The BV is also powered by the batteries or external power. Mini Control valve is the best choice for an Irrigation System for a Garden, Smart Farm, or Hydroponic Farm. It can be used for FCU in HVAC or any water supply line in a Facility or Building.
Specification
Valve Body: Ball valve, low torque design
Body materials: Brass (standard), 304SS, 316SS
Sealing: EPDM (standard), NBR, Silicone Rubber
Seat: PTFE
Ball: 304SS (standard), 316SS
Size: DN8, DN15, DN20, DN25
Process connection: BSPP female threads
Cable: 2m molded M12 connector cable
Working temperature: 0∼100℃
Working pressure: -1∼10 barg
Manual override: Yes
Valve housing rating: IP5
Control functions: On-Off
Valve Diagnostic: Yes, to detect clogging, longer closing or opening time, valve failure
2. Principle of Operation
This mini-control valve is a 2-piece design ball valve with a low torque feature to allow the valve to use less energy than the regular valve on the market. This feature allows the valve to be operated by batteries for years.
The ball will be moved by the internal micro motor and a set of micro limit switches to allow the running from 0° to 90° of opening.
The valve will be powered and controlled from a wireless device, it could be LoRaWAN, Sigfox, NB-IoT, or Sub-GHz technology.
3. Calibration
The mini-control valve is calibrated at the factory to make sure it will close or open completely.
However, after time of usage, the closing and opening times will be increased a bit due to the friction between the ball and the seat increase. Users can check these values from the diagnostic feature of the device and adjust accordingly. Users can use the offline tool or downlink to write the new values of maximum allowable valve open time and maximumu allowable valve close time
4. Application Notes
5. Installation Notes
Installation Notes for Ball Valves
1. Preparation:
Power Supply: Ensure the power supply matches the voltage and current requirements of the valve.
Tools: Gather necessary tools such as a multimeter, screwdriver, wire strippers, and connectors.
2. Mounting:
Location: Choose a clean, dry, and accessible location for the controller.
Secure Mounting: Mount the controller securely using screws or brackets.
3. Electrical Connections:
Polarity: Ensure correct polarity for the electrical connections. Use an H-bridge circuit if needed for polarity reversal.
Wiring: Connect the controller to the solenoid valve using appropriate gauge wires. Secure connections with wire nuts or terminal blocks.
Power Supply: Connect the power supply to the controller, ensuring it is turned off during installation.
4. Configuration:
Pulse Duration: Set the pulse duration on the controller to match the requirements of the valve.
Programming: If using a programmable controller, configure it to send the correct pulse duration and polarity.
5. Testing:
Initial Test: Turn on the power supply and test the controller to ensure it switches the valve correctly.
Adjustments: Make any necessary adjustments to the pulse duration or configuration settings.
6. Final Checks:
Secure Connections: Double-check all electrical connections to ensure they are secure and properly insulated.
Environmental Conditions: Verify that the installation can withstand the expected environmental conditions (e.g., temperature, humidity).
7. Documentation:
Record Settings: Document the configuration settings and any adjustments made during installation.
Maintenance Schedule: Establish a maintenance schedule to periodically check the controller and valve for proper operation.
6. Troubleshooting
1. Valve take longer time to open and close
Check inside status of valve
Check fluid pressure
Check voltage of power supply for actuator mechanism
2. Valve could not be open and close completely
Check any object stuck inside the valve
Check the ball erosive wear, ball deformation
3. Valve could not open/close as control command
Check object that could lock the ball of the valve
Check cable from control module to valve
7. Maintenance
Re-calibration:
Once the error code appears on the system, please perform the calibration of opening and closing time to make sure the valve opens and closes completely, and no passing problem happens.
Valve body replacement:
Replace the new valve body.
8. Default Configuration
This device has the default configuration (opening and closing times), however, those parameters can be changed. The user can change the configuration on the wireless transmitter so that the complete sensor (transducer + wireless) delivers the proper output value. Please check the Payload document for more information